Hugging Face's logo

AbdulElahGwaith
/
FreeCAD

Arabic
English
freecad
Model card Files
xet
 Community
FreeCAD / src /Mod /Import /App /dxf /dxf.cpp
AbdulElahGwaith's picture
AbdulElahGwaith
Upload folder using huggingface_hub
985c397 verified
Raw History Blame Contribute Delete
112 kB
// SPDX-License-Identifier: BSD-3-Clause
// dxf.cpp
// Copyright (c) 2009, Dan Heeks
// This program is released under the BSD license. See the file COPYING for details.
// modified 2018 wandererfan
#include <cmath>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <sstream>
#include <exception>
#include <string>
#include "dxf.h"
#include <App/Application.h>
#include <Base/Color.h>
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/FileInfo.h>
#include <Base/Interpreter.h>
#include <Base/Stream.h>
#include <Base/Tools.h>
#include <Base/Vector3D.h>
using namespace std;
namespace
{
std::string DxfUnitToString(DxfUnits::eDxfUnits_t unit)
{
switch (unit) {
case DxfUnits::eInches:
return "Inches";
case DxfUnits::eFeet:
return "Feet";
case DxfUnits::eMiles:
return "Miles";
case DxfUnits::eMillimeters:
return "Millimeters";
case DxfUnits::eCentimeters:
return "Centimeters";
case DxfUnits::eMeters:
return "Meters";
case DxfUnits::eKilometers:
return "Kilometers";
case DxfUnits::eMicroinches:
return "Microinches";
case DxfUnits::eMils:
return "Mils";
case DxfUnits::eYards:
return "Yards";
case DxfUnits::eAngstroms:
return "Angstroms";
case DxfUnits::eNanometers:
return "Nanometers";
case DxfUnits::eMicrons:
return "Microns";
case DxfUnits::eDecimeters:
return "Decimeters";
case DxfUnits::eDekameters:
return "Dekameters";
case DxfUnits::eHectometers:
return "Hectometers";
case DxfUnits::eGigameters:
return "Gigameters";
case DxfUnits::eAstronomicalUnits:
return "Astronomical Units";
case DxfUnits::eLightYears:
return "Light Years";
case DxfUnits::eParsecs:
return "Parsecs";
case DxfUnits::eUnspecified:
default:
return "Unspecified";
}
}
} // namespace
static Base::Vector3d MakeVector3d(const double coordinates[3])
{
// NOLINTNEXTLINE(readability/nolint)
// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
return Base::Vector3d(coordinates[0], coordinates[1], coordinates[2]);
}
CDxfWrite::CDxfWrite(const char* filepath)
: // TODO: these should probably be parameters in config file
// handles:
// boilerplate 0 - A00
// used by dxf.cpp A01 - FFFE
// ACAD HANDSEED FFFF
m_fail(false)
, m_ssBlock(new std::ostringstream())
, m_ssBlkRecord(new std::ostringstream())
, m_ssEntity(new std::ostringstream())
, m_ssLayer(new std::ostringstream())
, m_version(12)
, m_handle(0xA00)
, // room for 2560 handles in boilerplate files
// m_entityHandle(0x300), //don't need special ranges for handles
// m_layerHandle(0x30),
// m_blockHandle(0x210),
// m_blkRecordHandle(0x110),
m_polyOverride(false)
, m_layerName("none")
{
// start the file
Base::FileInfo fi(filepath);
m_ofs = new Base::ofstream(fi, ios::out);
if (!(*m_ofs)) {
m_fail = true;
return;
}
m_ofs->imbue(std::locale("C"));
// use lots of digits to avoid rounding errors
m_ssEntity->setf(std::ios::fixed);
m_ssEntity->precision(9);
}
CDxfWrite::~CDxfWrite()
{
delete m_ofs;
delete m_ssBlock;
delete m_ssBlkRecord;
delete m_ssEntity;
delete m_ssLayer;
}
void CDxfWrite::init()
{
writeHeaderSection();
makeBlockRecordTableHead();
makeBlockSectionHead();
}
//! assemble pieces into output file
void CDxfWrite::endRun()
{
makeLayerTable();
makeBlockRecordTableBody();
writeClassesSection();
writeTablesSection();
writeBlocksSection();
writeEntitiesSection();
writeObjectsSection();
(*m_ofs) << " 0" << endl;
(*m_ofs) << "EOF";
}
//***************************
// writeHeaderSection
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeHeaderSection()
{
std::stringstream ss;
ss << "FreeCAD v" << App::Application::Config()["BuildVersionMajor"] << "."
<< App::Application::Config()["BuildVersionMinor"] << " "
<< App::Application::Config()["BuildRevision"];
// header & version
(*m_ofs) << "999" << endl;
(*m_ofs) << ss.str() << endl;
// static header content
ss.str("");
ss.clear();
ss << "header" << m_version << ".rub";
std::string fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
}
//***************************
// writeClassesSection
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeClassesSection()
{
if (m_version < 14) {
return;
}
// static classes section content
std::stringstream ss;
ss << "classes" << m_version << ".rub";
std::string fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
}
//***************************
// writeTablesSection
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeTablesSection()
{
// static tables section head end content
std::stringstream ss;
ss << "tables1" << m_version << ".rub";
std::string fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
(*m_ofs) << (*m_ssLayer).str();
// static tables section tail end content
ss.str("");
ss.clear();
ss << "tables2" << m_version << ".rub";
fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
if (m_version > 12) {
(*m_ofs) << (*m_ssBlkRecord).str();
(*m_ofs) << " 0" << endl;
(*m_ofs) << "ENDTAB" << endl;
}
(*m_ofs) << " 0" << endl;
(*m_ofs) << "ENDSEC" << endl;
}
//***************************
// makeLayerTable
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::makeLayerTable()
{
std::string tablehash = getLayerHandle();
(*m_ssLayer) << " 0" << endl;
(*m_ssLayer) << "TABLE" << endl;
(*m_ssLayer) << " 2" << endl;
(*m_ssLayer) << "LAYER" << endl;
(*m_ssLayer) << " 5" << endl;
(*m_ssLayer) << tablehash << endl;
if (m_version > 12) {
(*m_ssLayer) << "330" << endl;
(*m_ssLayer) << 0 << endl;
(*m_ssLayer) << "100" << endl;
(*m_ssLayer) << "AcDbSymbolTable" << endl;
}
(*m_ssLayer) << " 70" << endl;
(*m_ssLayer) << m_layerList.size() + 1 << endl;
(*m_ssLayer) << " 0" << endl;
(*m_ssLayer) << "LAYER" << endl;
(*m_ssLayer) << " 5" << endl;
(*m_ssLayer) << getLayerHandle() << endl;
if (m_version > 12) {
(*m_ssLayer) << "330" << endl;
(*m_ssLayer) << tablehash << endl;
(*m_ssLayer) << "100" << endl;
(*m_ssLayer) << "AcDbSymbolTableRecord" << endl;
(*m_ssLayer) << "100" << endl;
(*m_ssLayer) << "AcDbLayerTableRecord" << endl;
}
(*m_ssLayer) << " 2" << endl;
(*m_ssLayer) << "0" << endl;
(*m_ssLayer) << " 70" << endl;
(*m_ssLayer) << " 0" << endl;
(*m_ssLayer) << " 62" << endl;
(*m_ssLayer) << " 7" << endl;
(*m_ssLayer) << " 6" << endl;
(*m_ssLayer) << "CONTINUOUS" << endl;
for (auto& l : m_layerList) {
(*m_ssLayer) << " 0" << endl;
(*m_ssLayer) << "LAYER" << endl;
(*m_ssLayer) << " 5" << endl;
(*m_ssLayer) << getLayerHandle() << endl;
if (m_version > 12) {
(*m_ssLayer) << "330" << endl;
(*m_ssLayer) << tablehash << endl;
(*m_ssLayer) << "100" << endl;
(*m_ssLayer) << "AcDbSymbolTableRecord" << endl;
(*m_ssLayer) << "100" << endl;
(*m_ssLayer) << "AcDbLayerTableRecord" << endl;
}
(*m_ssLayer) << " 2" << endl;
(*m_ssLayer) << l << endl;
(*m_ssLayer) << " 70" << endl;
(*m_ssLayer) << " 0" << endl;
(*m_ssLayer) << " 62" << endl;
(*m_ssLayer) << " 7" << endl;
(*m_ssLayer) << " 6" << endl;
(*m_ssLayer) << "CONTINUOUS" << endl;
}
(*m_ssLayer) << " 0" << endl;
(*m_ssLayer) << "ENDTAB" << endl;
}
//***************************
// makeBlockRecordTableHead
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::makeBlockRecordTableHead()
{
if (m_version < 14) {
return;
}
std::string tablehash = getBlkRecordHandle();
m_saveBlockRecordTableHandle = tablehash;
(*m_ssBlkRecord) << " 0" << endl;
(*m_ssBlkRecord) << "TABLE" << endl;
(*m_ssBlkRecord) << " 2" << endl;
(*m_ssBlkRecord) << "BLOCK_RECORD" << endl;
(*m_ssBlkRecord) << " 5" << endl;
(*m_ssBlkRecord) << tablehash << endl;
(*m_ssBlkRecord) << "330" << endl;
(*m_ssBlkRecord) << "0" << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbSymbolTable" << endl;
(*m_ssBlkRecord) << " 70" << endl;
(*m_ssBlkRecord) << (m_blockList.size() + 5) << endl;
m_saveModelSpaceHandle = getBlkRecordHandle();
(*m_ssBlkRecord) << " 0" << endl;
(*m_ssBlkRecord) << "BLOCK_RECORD" << endl;
(*m_ssBlkRecord) << " 5" << endl;
(*m_ssBlkRecord) << m_saveModelSpaceHandle << endl;
(*m_ssBlkRecord) << "330" << endl;
(*m_ssBlkRecord) << tablehash << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbSymbolTableRecord" << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbBlockTableRecord" << endl;
(*m_ssBlkRecord) << " 2" << endl;
(*m_ssBlkRecord) << "*MODEL_SPACE" << endl;
// (*m_ssBlkRecord) << " 1" << endl;
// (*m_ssBlkRecord) << " " << endl;
m_savePaperSpaceHandle = getBlkRecordHandle();
(*m_ssBlkRecord) << " 0" << endl;
(*m_ssBlkRecord) << "BLOCK_RECORD" << endl;
(*m_ssBlkRecord) << " 5" << endl;
(*m_ssBlkRecord) << m_savePaperSpaceHandle << endl;
(*m_ssBlkRecord) << "330" << endl;
(*m_ssBlkRecord) << tablehash << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbSymbolTableRecord" << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbBlockTableRecord" << endl;
(*m_ssBlkRecord) << " 2" << endl;
(*m_ssBlkRecord) << "*PAPER_SPACE" << endl;
// (*m_ssBlkRecord) << " 1" << endl;
// (*m_ssBlkRecord) << " " << endl;
}
//***************************
// makeBlockRecordTableBody
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::makeBlockRecordTableBody()
{
if (m_version < 14) {
return;
}
int iBlkRecord = 0;
for (auto& b : m_blockList) {
(*m_ssBlkRecord) << " 0" << endl;
(*m_ssBlkRecord) << "BLOCK_RECORD" << endl;
(*m_ssBlkRecord) << " 5" << endl;
(*m_ssBlkRecord) << m_blkRecordList.at(iBlkRecord) << endl;
(*m_ssBlkRecord) << "330" << endl;
(*m_ssBlkRecord) << m_saveBlockRecordTableHandle << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbSymbolTableRecord" << endl;
(*m_ssBlkRecord) << "100" << endl;
(*m_ssBlkRecord) << "AcDbBlockTableRecord" << endl;
(*m_ssBlkRecord) << " 2" << endl;
(*m_ssBlkRecord) << b << endl;
// (*m_ssBlkRecord) << " 70" << endl;
// (*m_ssBlkRecord) << " 0" << endl;
iBlkRecord++;
}
}
//***************************
// makeBlockSectionHead
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::makeBlockSectionHead()
{
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "SECTION" << endl;
(*m_ssBlock) << " 2" << endl;
(*m_ssBlock) << "BLOCKS" << endl;
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "BLOCK" << endl;
(*m_ssBlock) << " 5" << endl;
m_currentBlock = getBlockHandle();
(*m_ssBlock) << m_currentBlock << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_saveModelSpaceHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
}
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << "0" << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbBlockBegin" << endl;
}
(*m_ssBlock) << " 2" << endl;
(*m_ssBlock) << "*MODEL_SPACE" << endl;
(*m_ssBlock) << " 70" << endl;
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << " 10" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 20" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 30" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 3" << endl;
(*m_ssBlock) << "*MODEL_SPACE" << endl;
(*m_ssBlock) << " 1" << endl;
(*m_ssBlock) << " " << endl;
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "ENDBLK" << endl;
(*m_ssBlock) << " 5" << endl;
(*m_ssBlock) << getBlockHandle() << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_saveModelSpaceHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
}
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << "0" << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbBlockEnd" << endl;
}
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "BLOCK" << endl;
(*m_ssBlock) << " 5" << endl;
m_currentBlock = getBlockHandle();
(*m_ssBlock) << m_currentBlock << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_savePaperSpaceHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
(*m_ssBlock) << " 67" << endl;
(*m_ssBlock) << "1" << endl;
}
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << "0" << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbBlockBegin" << endl;
}
(*m_ssBlock) << " 2" << endl;
(*m_ssBlock) << "*PAPER_SPACE" << endl;
(*m_ssBlock) << " 70" << endl;
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << " 10" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 20" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 30" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 3" << endl;
(*m_ssBlock) << "*PAPER_SPACE" << endl;
(*m_ssBlock) << " 1" << endl;
(*m_ssBlock) << " " << endl;
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "ENDBLK" << endl;
(*m_ssBlock) << " 5" << endl;
(*m_ssBlock) << getBlockHandle() << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_savePaperSpaceHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
(*m_ssBlock) << " 67" << endl; // paper_space flag
(*m_ssBlock) << " 1" << endl;
}
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << "0" << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbBlockEnd" << endl;
}
}
std::string CDxfWrite::getPlateFile(std::string fileSpec)
{
std::stringstream outString;
Base::FileInfo fi(fileSpec);
if (!fi.isReadable()) {
Base::Console().message("dxf unable to open %s!\n", fileSpec.c_str());
}
else {
string line;
ifstream inFile(fi.filePath());
while (!inFile.eof()) {
getline(inFile, line);
if (!inFile.eof()) {
outString << line << '\n';
}
}
}
return outString.str();
}
std::string CDxfWrite::getHandle()
{
m_handle++;
std::stringstream ss;
ss << std::uppercase << std::hex << std::setfill('0') << std::setw(2);
ss << m_handle;
return ss.str();
}
std::string CDxfWrite::getEntityHandle()
{
return getHandle();
// m_entityHandle++;
// std::stringstream ss;
// ss << std::uppercase << std::hex << std::setfill('0') << std::setw(2);
// ss << m_entityHandle;
// return ss.str();
}
std::string CDxfWrite::getLayerHandle()
{
return getHandle();
// m_layerHandle++;
// std::stringstream ss;
// ss << std::uppercase << std::hex << std::setfill('0') << std::setw(2);
// ss << m_layerHandle;
// return ss.str();
}
std::string CDxfWrite::getBlockHandle()
{
return getHandle();
// m_blockHandle++;
// std::stringstream ss;
// ss << std::uppercase << std::hex << std::setfill('0') << std::setw(2);
// ss << m_blockHandle;
// return ss.str();
}
std::string CDxfWrite::getBlkRecordHandle()
{
return getHandle();
// m_blkRecordHandle++;
// std::stringstream ss;
// ss << std::uppercase << std::hex << std::setfill('0') << std::setw(2);
// ss << m_blkRecordHandle;
// return ss.str();
}
void CDxfWrite::addBlockName(const std::string& name, const std::string& blkRecordHandle)
{
m_blockList.push_back(name);
m_blkRecordList.push_back(blkRecordHandle);
}
void CDxfWrite::setLayerName(std::string name)
{
m_layerName = name;
m_layerList.push_back(name);
}
void CDxfWrite::writeLine(const double* start, const double* end)
{
putLine(toVector3d(start), toVector3d(end), m_ssEntity, getEntityHandle(), m_saveModelSpaceHandle);
}
void CDxfWrite::putLine(
const Base::Vector3d& start,
const Base::Vector3d& end,
std::ostringstream* outStream,
const std::string& handle,
const std::string& ownerHandle
)
{
(*outStream) << " 0" << endl;
(*outStream) << "LINE" << endl;
(*outStream) << " 5" << endl;
(*outStream) << handle << endl;
if (m_version > 12) {
(*outStream) << "330" << endl;
(*outStream) << ownerHandle << endl;
(*outStream) << "100" << endl;
(*outStream) << "AcDbEntity" << endl;
}
(*outStream) << " 8" << endl; // Group code for layer name
(*outStream) << getLayerName() << endl; // Layer number
if (m_version > 12) {
(*outStream) << "100" << endl;
(*outStream) << "AcDbLine" << endl;
}
(*outStream) << " 10" << endl; // Start point of line
(*outStream) << start.x << endl; // X in WCS coordinates
(*outStream) << " 20" << endl;
(*outStream) << start.y << endl; // Y in WCS coordinates
(*outStream) << " 30" << endl;
(*outStream) << start.z << endl; // Z in WCS coordinates
(*outStream) << " 11" << endl; // End point of line
(*outStream) << end.x << endl; // X in WCS coordinates
(*outStream) << " 21" << endl;
(*outStream) << end.y << endl; // Y in WCS coordinates
(*outStream) << " 31" << endl;
(*outStream) << end.z << endl; // Z in WCS coordinates
}
//***************************
// writeLWPolyLine (Note: LWPolyline might not be supported in R12
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeLWPolyLine(const LWPolyDataOut& pd)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "LWPOLYLINE" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
if (m_version > 12) {
(*m_ssEntity) << "100" << endl; // 100 groups are not part of R12
(*m_ssEntity) << "AcDbPolyline" << endl;
}
(*m_ssEntity) << " 8" << endl; // Group code for layer name
(*m_ssEntity) << getLayerName() << endl; // Layer name
(*m_ssEntity) << " 90" << endl;
(*m_ssEntity) << pd.nVert << endl; // number of vertices
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << pd.Flag << endl;
(*m_ssEntity) << " 43" << endl;
(*m_ssEntity) << "0" << endl; // Constant width opt
// (*m_ssEntity) << pd.Width << endl; //Constant width opt
// (*m_ssEntity) << " 38" << endl;
// (*m_ssEntity) << pd.Elev << endl; // Elevation
// (*m_ssEntity) << " 39" << endl;
// (*m_ssEntity) << pd.Thick << endl; // Thickness
for (auto& p : pd.Verts) {
(*m_ssEntity) << " 10" << endl; // Vertices
(*m_ssEntity) << p.x << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << p.y << endl;
}
for (auto& s : pd.StartWidth) {
(*m_ssEntity) << " 40" << endl;
(*m_ssEntity) << s << endl; // Start Width
}
for (auto& e : pd.EndWidth) {
(*m_ssEntity) << " 41" << endl;
(*m_ssEntity) << e << endl; // End Width
}
for (auto& b : pd.Bulge) { // Bulge
(*m_ssEntity) << " 42" << endl;
(*m_ssEntity) << b << endl;
}
// (*m_ssEntity) << "210" << endl; //Extrusion dir
// (*m_ssEntity) << pd.Extr.x << endl;
// (*m_ssEntity) << "220" << endl;
// (*m_ssEntity) << pd.Extr.y << endl;
// (*m_ssEntity) << "230" << endl;
// (*m_ssEntity) << pd.Extr.z << endl;
}
//***************************
// writePolyline
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writePolyline(const LWPolyDataOut& pd)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "POLYLINE" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl; // Layer name
if (m_version > 12) {
(*m_ssEntity) << "100" << endl; // 100 groups are not part of R12
(*m_ssEntity) << "AcDbPolyline" << endl;
}
(*m_ssEntity) << " 66" << endl;
(*m_ssEntity) << " 1" << endl; // vertices follow
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << "0.0" << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << "0.0" << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << "0.0" << endl;
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << "0" << endl;
for (auto& p : pd.Verts) {
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "VERTEX" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << p.x << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << p.y << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << p.z << endl;
}
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "SEQEND" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
}
void CDxfWrite::writePoint(const double* point)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "POINT" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl; // Group code for layer name
(*m_ssEntity) << getLayerName() << endl; // Layer name
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbPoint" << endl;
}
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << point[0] << endl; // X in WCS coordinates
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << point[1] << endl; // Y in WCS coordinates
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << point[2] << endl; // Z in WCS coordinates
}
//! arc from 3 points - start, end, center. dir true if arc is AntiClockwise. unspecified assumption
//! is that points are on XY plane in coord system OXYZ.
void CDxfWrite::writeArc(const double* start, const double* end, const double* center, bool dir)
{
double ax = start[0] - center[0];
double ay = start[1] - center[1];
double bx = end[0] - center[0];
double by = end[1] - center[1];
double start_angle = Base::toDegrees(atan2(ay, ax));
double end_angle = Base::toDegrees(atan2(by, bx));
double radius = sqrt(ax * ax + ay * ay);
if (!dir) {
double temp = start_angle;
start_angle = end_angle;
end_angle = temp;
}
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "ARC" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl; // Group code for layer name
(*m_ssEntity) << getLayerName() << endl; // Layer number
// (*m_ssEntity) << " 62" << endl;
// (*m_ssEntity) << " 0" << endl;
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbCircle" << endl;
}
(*m_ssEntity) << " 10" << endl; // Centre X
(*m_ssEntity) << center[0] << endl; // X in WCS coordinates
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << center[1] << endl; // Y in WCS coordinates
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << center[2] << endl; // Z in WCS coordinates
(*m_ssEntity) << " 40" << endl; //
(*m_ssEntity) << radius << endl; // Radius
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbArc" << endl;
}
(*m_ssEntity) << " 50" << endl;
(*m_ssEntity) << start_angle << endl; // Start angle
(*m_ssEntity) << " 51" << endl;
(*m_ssEntity) << end_angle << endl; // End angle
}
void CDxfWrite::writeCircle(const double* center, double radius)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "CIRCLE" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl; // Group code for layer name
(*m_ssEntity) << getLayerName() << endl; // Layer number
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbCircle" << endl;
}
(*m_ssEntity) << " 10" << endl; // Centre X
(*m_ssEntity) << center[0] << endl; // X in WCS coordinates
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << center[1] << endl; // Y in WCS coordinates
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << center[2] << endl; // Z in WCS coordinates
(*m_ssEntity) << " 40" << endl; //
(*m_ssEntity) << radius << endl; // Radius
}
void CDxfWrite::writeEllipse(
const double* center,
double major_radius,
double minor_radius,
double rotation,
double start_angle,
double end_angle,
bool endIsCW
)
{
Base::Vector3d m(major_radius * sin(rotation), major_radius * cos(rotation), 0);
double ratio = minor_radius / major_radius;
if (!endIsCW) { // end is NOT CW from start
double temp = start_angle;
start_angle = end_angle;
end_angle = temp;
}
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "ELLIPSE" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl; // Group code for layer name
(*m_ssEntity) << getLayerName() << endl; // Layer number
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEllipse" << endl;
}
(*m_ssEntity) << " 10" << endl; // Centre X
(*m_ssEntity) << center[0] << endl; // X in WCS coordinates
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << center[1] << endl; // Y in WCS coordinates
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << center[2] << endl; // Z in WCS coordinates
(*m_ssEntity) << " 11" << endl; //
(*m_ssEntity) << m.x << endl; // Major X
(*m_ssEntity) << " 21" << endl;
(*m_ssEntity) << m.y << endl; // Major Y
(*m_ssEntity) << " 31" << endl;
(*m_ssEntity) << m.z << endl; // Major Z
(*m_ssEntity) << " 40" << endl; //
(*m_ssEntity) << ratio << endl; // Ratio
// (*m_ssEntity) << "210" << endl; //extrusion dir??
// (*m_ssEntity) << "0" << endl;
// (*m_ssEntity) << "220" << endl;
// (*m_ssEntity) << "0" << endl;
// (*m_ssEntity) << "230" << endl;
// (*m_ssEntity) << "1" << endl;
(*m_ssEntity) << " 41" << endl;
(*m_ssEntity) << start_angle << endl; // Start angle (radians [0..2pi])
(*m_ssEntity) << " 42" << endl;
(*m_ssEntity) << end_angle << endl; // End angle
}
//***************************
// writeSpline
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeSpline(const SplineDataOut& sd)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "SPLINE" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl; // Group code for layer name
(*m_ssEntity) << getLayerName() << endl; // Layer name
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbSpline" << endl;
}
(*m_ssEntity) << "210" << endl;
(*m_ssEntity) << "0" << endl;
(*m_ssEntity) << "220" << endl;
(*m_ssEntity) << "0" << endl;
(*m_ssEntity) << "230" << endl;
(*m_ssEntity) << "1" << endl;
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << sd.flag << endl; // flags
(*m_ssEntity) << " 71" << endl;
(*m_ssEntity) << sd.degree << endl;
(*m_ssEntity) << " 72" << endl;
(*m_ssEntity) << sd.knots << endl;
(*m_ssEntity) << " 73" << endl;
(*m_ssEntity) << sd.control_points << endl;
(*m_ssEntity) << " 74" << endl;
(*m_ssEntity) << 0 << endl;
// (*m_ssEntity) << " 12" << endl;
// (*m_ssEntity) << sd.starttan.x << endl;
// (*m_ssEntity) << " 22" << endl;
// (*m_ssEntity) << sd.starttan.y << endl;
// (*m_ssEntity) << " 32" << endl;
// (*m_ssEntity) << sd.starttan.z << endl;
// (*m_ssEntity) << " 13" << endl;
// (*m_ssEntity) << sd.endtan.x << endl;
// (*m_ssEntity) << " 23" << endl;
// (*m_ssEntity) << sd.endtan.y << endl;
// (*m_ssEntity) << " 33" << endl;
// (*m_ssEntity) << sd.endtan.z << endl;
for (auto& k : sd.knot) {
(*m_ssEntity) << " 40" << endl;
(*m_ssEntity) << k << endl;
}
for (auto& w : sd.weight) {
(*m_ssEntity) << " 41" << endl;
(*m_ssEntity) << w << endl;
}
for (auto& center : sd.control) {
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << center.x << endl; // X in WCS coordinates
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << center.y << endl; // Y in WCS coordinates
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << center.z << endl; // Z in WCS coordinates
}
for (auto& f : sd.fit) {
(*m_ssEntity) << " 11" << endl;
(*m_ssEntity) << f.x << endl; // X in WCS coordinates
(*m_ssEntity) << " 21" << endl;
(*m_ssEntity) << f.y << endl; // Y in WCS coordinates
(*m_ssEntity) << " 31" << endl;
(*m_ssEntity) << f.z << endl; // Z in WCS coordinates
}
}
//***************************
// writeVertex
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeVertex(double x, double y, double z)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "VERTEX" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbVertex" << endl;
}
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << x << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << y << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << z << endl;
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << 0 << endl;
}
void CDxfWrite::writeText(
const char* text,
const double* location1,
const double* location2,
const double height,
const int horizJust
)
{
putText(
text,
toVector3d(location1),
toVector3d(location2),
height,
horizJust,
m_ssEntity,
getEntityHandle(),
m_saveModelSpaceHandle
);
}
//***************************
// putText
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::putText(
const char* text,
const Base::Vector3d& location1,
const Base::Vector3d& location2,
const double height,
const int horizJust,
std::ostringstream* outStream,
const std::string& handle,
const std::string& ownerHandle
)
{
(void)location2;
(*outStream) << " 0" << endl;
(*outStream) << "TEXT" << endl;
(*outStream) << " 5" << endl;
(*outStream) << handle << endl;
if (m_version > 12) {
(*outStream) << "330" << endl;
(*outStream) << ownerHandle << endl;
(*outStream) << "100" << endl;
(*outStream) << "AcDbEntity" << endl;
}
(*outStream) << " 8" << endl;
(*outStream) << getLayerName() << endl;
if (m_version > 12) {
(*outStream) << "100" << endl;
(*outStream) << "AcDbText" << endl;
}
// (*outStream) << " 39" << endl;
// (*outStream) << 0 << endl; //thickness
(*outStream) << " 10" << endl; // first alignment point
(*outStream) << location1.x << endl;
(*outStream) << " 20" << endl;
(*outStream) << location1.y << endl;
(*outStream) << " 30" << endl;
(*outStream) << location1.z << endl;
(*outStream) << " 40" << endl;
(*outStream) << height << endl;
(*outStream) << " 1" << endl;
(*outStream) << text << endl;
// (*outStream) << " 50" << endl;
// (*outStream) << 0 << endl; //rotation
// (*outStream) << " 41" << endl;
// (*outStream) << 1 << endl;
// (*outStream) << " 51" << endl;
// (*outStream) << 0 << endl;
(*outStream) << " 7" << endl;
(*outStream) << "STANDARD" << endl; // style
// (*outStream) << " 71" << endl; //default
// (*outStream) << "0" << endl;
(*outStream) << " 72" << endl;
(*outStream) << horizJust << endl;
//// (*outStream) << " 73" << endl;
//// (*outStream) << "0" << endl;
(*outStream) << " 11" << endl; // second alignment point
(*outStream) << location2.x << endl;
(*outStream) << " 21" << endl;
(*outStream) << location2.y << endl;
(*outStream) << " 31" << endl;
(*outStream) << location2.z << endl;
// (*outStream) << "210" << endl;
// (*outStream) << "0" << endl;
// (*outStream) << "220" << endl;
// (*outStream) << "0" << endl;
// (*outStream) << "230" << endl;
// (*outStream) << "1" << endl;
if (m_version > 12) {
(*outStream) << "100" << endl;
(*outStream) << "AcDbText" << endl;
}
}
void CDxfWrite::putArrow(
Base::Vector3d& arrowPos,
Base::Vector3d& barb1Pos,
Base::Vector3d& barb2Pos,
std::ostringstream* outStream,
const std::string& handle,
const std::string& ownerHandle
)
{
(*outStream) << " 0" << endl;
(*outStream) << "SOLID" << endl;
(*outStream) << " 5" << endl;
(*outStream) << handle << endl;
if (m_version > 12) {
(*outStream) << "330" << endl;
(*outStream) << ownerHandle << endl;
(*outStream) << "100" << endl;
(*outStream) << "AcDbEntity" << endl;
}
(*outStream) << " 8" << endl;
(*outStream) << "0" << endl;
(*outStream) << " 62" << endl;
(*outStream) << " 0" << endl;
if (m_version > 12) {
(*outStream) << "100" << endl;
(*outStream) << "AcDbTrace" << endl;
}
(*outStream) << " 10" << endl;
(*outStream) << barb1Pos.x << endl;
(*outStream) << " 20" << endl;
(*outStream) << barb1Pos.y << endl;
(*outStream) << " 30" << endl;
(*outStream) << barb1Pos.z << endl;
(*outStream) << " 11" << endl;
(*outStream) << barb2Pos.x << endl;
(*outStream) << " 21" << endl;
(*outStream) << barb2Pos.y << endl;
(*outStream) << " 31" << endl;
(*outStream) << barb2Pos.z << endl;
(*outStream) << " 12" << endl;
(*outStream) << arrowPos.x << endl;
(*outStream) << " 22" << endl;
(*outStream) << arrowPos.y << endl;
(*outStream) << " 32" << endl;
(*outStream) << arrowPos.z << endl;
(*outStream) << " 13" << endl;
(*outStream) << arrowPos.x << endl;
(*outStream) << " 23" << endl;
(*outStream) << arrowPos.y << endl;
(*outStream) << " 33" << endl;
(*outStream) << arrowPos.z << endl;
}
//***************************
// writeLinearDim
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
#define ALIGNED 0
#define HORIZONTAL 1
#define VERTICAL 2
void CDxfWrite::writeLinearDim(
const double* textMidPoint,
const double* lineDefPoint,
const double* extLine1,
const double* extLine2,
const char* dimText,
int type
)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "DIMENSION" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbDimension" << endl;
}
(*m_ssEntity) << " 2" << endl;
(*m_ssEntity) << "*" << getLayerName() << endl; // blockName
(*m_ssEntity) << " 10" << endl; // dimension line definition point
(*m_ssEntity) << lineDefPoint[0] << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << lineDefPoint[1] << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << lineDefPoint[2] << endl;
(*m_ssEntity) << " 11" << endl; // text mid point
(*m_ssEntity) << textMidPoint[0] << endl;
(*m_ssEntity) << " 21" << endl;
(*m_ssEntity) << textMidPoint[1] << endl;
(*m_ssEntity) << " 31" << endl;
(*m_ssEntity) << textMidPoint[2] << endl;
if (type == ALIGNED) {
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << 1 << endl; // dimType1 = Aligned
}
if ((type == HORIZONTAL) || (type == VERTICAL)) {
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << 32 << endl; // dimType0 = Aligned + 32 (bit for unique block)?
}
// (*m_ssEntity) << " 71" << endl; // not R12
// (*m_ssEntity) << 1 << endl; // attachPoint ??1 = topleft
(*m_ssEntity) << " 1" << endl;
(*m_ssEntity) << dimText << endl;
(*m_ssEntity) << " 3" << endl;
(*m_ssEntity) << "STANDARD" << endl; // style
// linear dims
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbAlignedDimension" << endl;
}
(*m_ssEntity) << " 13" << endl;
(*m_ssEntity) << extLine1[0] << endl;
(*m_ssEntity) << " 23" << endl;
(*m_ssEntity) << extLine1[1] << endl;
(*m_ssEntity) << " 33" << endl;
(*m_ssEntity) << extLine1[2] << endl;
(*m_ssEntity) << " 14" << endl;
(*m_ssEntity) << extLine2[0] << endl;
(*m_ssEntity) << " 24" << endl;
(*m_ssEntity) << extLine2[1] << endl;
(*m_ssEntity) << " 34" << endl;
(*m_ssEntity) << extLine2[2] << endl;
if (m_version > 12) {
if (type == VERTICAL) {
(*m_ssEntity) << " 50" << endl;
(*m_ssEntity) << "90" << endl;
}
if ((type == HORIZONTAL) || (type == VERTICAL)) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbRotatedDimension" << endl;
}
}
writeDimBlockPreamble();
writeLinearDimBlock(textMidPoint, lineDefPoint, extLine1, extLine2, dimText, type);
writeBlockTrailer();
}
//***************************
// writeAngularDim
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeAngularDim(
const double* textMidPoint,
const double* lineDefPoint,
const double* startExt1,
const double* endExt1,
const double* startExt2,
const double* endExt2,
const char* dimText
)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "DIMENSION" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbDimension" << endl;
}
(*m_ssEntity) << " 2" << endl;
(*m_ssEntity) << "*" << getLayerName() << endl; // blockName
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << endExt2[0] << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << endExt2[1] << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << endExt2[2] << endl;
(*m_ssEntity) << " 11" << endl;
(*m_ssEntity) << textMidPoint[0] << endl;
(*m_ssEntity) << " 21" << endl;
(*m_ssEntity) << textMidPoint[1] << endl;
(*m_ssEntity) << " 31" << endl;
(*m_ssEntity) << textMidPoint[2] << endl;
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << 2 << endl; // dimType 2 = Angular 5 = Angular 3 point
// +32 for block?? (not R12)
// (*m_ssEntity) << " 71" << endl; // not R12? not required?
// (*m_ssEntity) << 5 << endl; // attachPoint 5 = middle
(*m_ssEntity) << " 1" << endl;
(*m_ssEntity) << dimText << endl;
(*m_ssEntity) << " 3" << endl;
(*m_ssEntity) << "STANDARD" << endl; // style
// angular dims
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDb2LineAngularDimension" << endl;
}
(*m_ssEntity) << " 13" << endl;
(*m_ssEntity) << startExt1[0] << endl;
(*m_ssEntity) << " 23" << endl;
(*m_ssEntity) << startExt1[1] << endl;
(*m_ssEntity) << " 33" << endl;
(*m_ssEntity) << startExt1[2] << endl;
(*m_ssEntity) << " 14" << endl;
(*m_ssEntity) << endExt1[0] << endl;
(*m_ssEntity) << " 24" << endl;
(*m_ssEntity) << endExt1[1] << endl;
(*m_ssEntity) << " 34" << endl;
(*m_ssEntity) << endExt1[2] << endl;
(*m_ssEntity) << " 15" << endl;
(*m_ssEntity) << startExt2[0] << endl;
(*m_ssEntity) << " 25" << endl;
(*m_ssEntity) << startExt2[1] << endl;
(*m_ssEntity) << " 35" << endl;
(*m_ssEntity) << startExt2[2] << endl;
(*m_ssEntity) << " 16" << endl;
(*m_ssEntity) << lineDefPoint[0] << endl;
(*m_ssEntity) << " 26" << endl;
(*m_ssEntity) << lineDefPoint[1] << endl;
(*m_ssEntity) << " 36" << endl;
(*m_ssEntity) << lineDefPoint[2] << endl;
writeDimBlockPreamble();
writeAngularDimBlock(textMidPoint, lineDefPoint, startExt1, endExt1, startExt2, endExt2, dimText);
writeBlockTrailer();
}
//***************************
// writeRadialDim
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeRadialDim(
const double* centerPoint,
const double* textMidPoint,
const double* arcPoint,
const char* dimText
)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "DIMENSION" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbDimension" << endl;
}
(*m_ssEntity) << " 2" << endl;
(*m_ssEntity) << "*" << getLayerName() << endl; // blockName
(*m_ssEntity) << " 10" << endl; // arc center point
(*m_ssEntity) << centerPoint[0] << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << centerPoint[1] << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << centerPoint[2] << endl;
(*m_ssEntity) << " 11" << endl; // text mid point
(*m_ssEntity) << textMidPoint[0] << endl;
(*m_ssEntity) << " 21" << endl;
(*m_ssEntity) << textMidPoint[1] << endl;
(*m_ssEntity) << " 31" << endl;
(*m_ssEntity) << textMidPoint[2] << endl;
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << 4 << endl; // dimType 4 = Radius
// (*m_ssEntity) << " 71" << endl; // not R12
// (*m_ssEntity) << 1 << endl; // attachPoint 5 = middle center
(*m_ssEntity) << " 1" << endl;
(*m_ssEntity) << dimText << endl;
(*m_ssEntity) << " 3" << endl;
(*m_ssEntity) << "STANDARD" << endl; // style
// radial dims
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbRadialDimension" << endl;
}
(*m_ssEntity) << " 15" << endl;
(*m_ssEntity) << arcPoint[0] << endl;
(*m_ssEntity) << " 25" << endl;
(*m_ssEntity) << arcPoint[1] << endl;
(*m_ssEntity) << " 35" << endl;
(*m_ssEntity) << arcPoint[2] << endl;
(*m_ssEntity) << " 40" << endl; // leader length????
(*m_ssEntity) << 0 << endl;
writeDimBlockPreamble();
writeRadialDimBlock(centerPoint, textMidPoint, arcPoint, dimText);
writeBlockTrailer();
}
//***************************
// writeDiametricDim
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeDiametricDim(
const double* textMidPoint,
const double* arcPoint1,
const double* arcPoint2,
const char* dimText
)
{
(*m_ssEntity) << " 0" << endl;
(*m_ssEntity) << "DIMENSION" << endl;
(*m_ssEntity) << " 5" << endl;
(*m_ssEntity) << getEntityHandle() << endl;
if (m_version > 12) {
(*m_ssEntity) << "330" << endl;
(*m_ssEntity) << m_saveModelSpaceHandle << endl;
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbEntity" << endl;
}
(*m_ssEntity) << " 8" << endl;
(*m_ssEntity) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbDimension" << endl;
}
(*m_ssEntity) << " 2" << endl;
(*m_ssEntity) << "*" << getLayerName() << endl; // blockName
(*m_ssEntity) << " 10" << endl;
(*m_ssEntity) << arcPoint1[0] << endl;
(*m_ssEntity) << " 20" << endl;
(*m_ssEntity) << arcPoint1[1] << endl;
(*m_ssEntity) << " 30" << endl;
(*m_ssEntity) << arcPoint1[2] << endl;
(*m_ssEntity) << " 11" << endl; // text mid point
(*m_ssEntity) << textMidPoint[0] << endl;
(*m_ssEntity) << " 21" << endl;
(*m_ssEntity) << textMidPoint[1] << endl;
(*m_ssEntity) << " 31" << endl;
(*m_ssEntity) << textMidPoint[2] << endl;
(*m_ssEntity) << " 70" << endl;
(*m_ssEntity) << 3 << endl; // dimType 3 = Diameter
// (*m_ssEntity) << " 71" << endl; // not R12
// (*m_ssEntity) << 5 << endl; // attachPoint 5 = middle center
(*m_ssEntity) << " 1" << endl;
(*m_ssEntity) << dimText << endl;
(*m_ssEntity) << " 3" << endl;
(*m_ssEntity) << "STANDARD" << endl; // style
// diametric dims
if (m_version > 12) {
(*m_ssEntity) << "100" << endl;
(*m_ssEntity) << "AcDbDiametricDimension" << endl;
}
(*m_ssEntity) << " 15" << endl;
(*m_ssEntity) << arcPoint2[0] << endl;
(*m_ssEntity) << " 25" << endl;
(*m_ssEntity) << arcPoint2[1] << endl;
(*m_ssEntity) << " 35" << endl;
(*m_ssEntity) << arcPoint2[2] << endl;
(*m_ssEntity) << " 40" << endl; // leader length????
(*m_ssEntity) << 0 << endl;
writeDimBlockPreamble();
writeDiametricDimBlock(textMidPoint, arcPoint1, arcPoint2, dimText);
writeBlockTrailer();
}
//***************************
// writeDimBlockPreamble
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeDimBlockPreamble()
{
if (m_version > 12) {
std::string blockName("*");
blockName += getLayerName();
m_saveBlkRecordHandle = getBlkRecordHandle();
addBlockName(blockName, m_saveBlkRecordHandle);
}
m_currentBlock = getBlockHandle();
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "BLOCK" << endl;
(*m_ssBlock) << " 5" << endl;
(*m_ssBlock) << m_currentBlock << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_saveBlkRecordHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
}
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbBlockBegin" << endl;
}
(*m_ssBlock) << " 2" << endl;
(*m_ssBlock) << "*" << getLayerName() << endl; // blockName
(*m_ssBlock) << " 70" << endl;
(*m_ssBlock) << " 1" << endl;
(*m_ssBlock) << " 10" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 20" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 30" << endl;
(*m_ssBlock) << 0.0 << endl;
(*m_ssBlock) << " 3" << endl;
(*m_ssBlock) << "*" << getLayerName() << endl; // blockName
(*m_ssBlock) << " 1" << endl;
(*m_ssBlock) << " " << endl;
}
//***************************
// writeBlockTrailer
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeBlockTrailer()
{
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "ENDBLK" << endl;
(*m_ssBlock) << " 5" << endl;
(*m_ssBlock) << getBlockHandle() << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_saveBlkRecordHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
}
// (*m_ssBlock) << " 67" << endl;
// (*m_ssBlock) << "1" << endl;
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << getLayerName() << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbBlockEnd" << endl;
}
}
//***************************
// writeLinearDimBlock
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeLinearDimBlock(
const double* textMidPoint,
const double* lineDefPoint,
const double* extLine1,
const double* extLine2,
const char* dimText,
int type
)
{
Base::Vector3d e1S(MakeVector3d(extLine1));
Base::Vector3d e2S(MakeVector3d(extLine2));
// point on DimLine (somewhere!)
Base::Vector3d dl(MakeVector3d(lineDefPoint));
Base::Vector3d perp = dl.DistanceToLineSegment(e2S, e1S);
Base::Vector3d e1E = e1S - perp;
Base::Vector3d e2E = e2S - perp;
Base::Vector3d para = e1E - e2E;
if (type == ALIGNED) {
// NOP
}
else if (type == HORIZONTAL) {
double x = extLine1[0];
double y = lineDefPoint[1];
e1E = Base::Vector3d(x, y, 0.0);
x = extLine2[0];
e2E = Base::Vector3d(x, y, 0.0);
perp = Base::Vector3d(0, -1, 0); // down
para = Base::Vector3d(1, 0, 0); // right
if (lineDefPoint[1] > extLine1[1]) {
perp = Base::Vector3d(0, 1, 0); // up
}
if (extLine1[0] > extLine2[0]) {
para = Base::Vector3d(-1, 0, 0); // left
}
}
else if (type == VERTICAL) {
double x = lineDefPoint[0];
double y = extLine1[1];
e1E = Base::Vector3d(x, y, 0.0);
y = extLine2[1];
e2E = Base::Vector3d(x, y, 0.0);
perp = Base::Vector3d(1, 0, 0);
para = Base::Vector3d(0, 1, 0);
if (lineDefPoint[0] < extLine1[0]) {
perp = Base::Vector3d(-1, 0, 0);
}
if (extLine1[1] > extLine2[1]) {
para = Base::Vector3d(0, -1, 0);
}
}
double arrowLen = 5.0; // magic number
double arrowWidth = arrowLen / 6.0 / 2.0; // magic number calc!
putLine(e2S, e2E, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
putLine(e1S, e1E, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
putLine(e1E, e2E, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
putText(
dimText,
toVector3d(textMidPoint),
toVector3d(lineDefPoint),
3.5,
1,
m_ssBlock,
getBlockHandle(),
m_saveBlkRecordHandle
);
perp.Normalize();
para.Normalize();
Base::Vector3d arrowStart = e1E;
Base::Vector3d barb1 = arrowStart + perp * arrowWidth - para * arrowLen;
Base::Vector3d barb2 = arrowStart - perp * arrowWidth - para * arrowLen;
putArrow(arrowStart, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
arrowStart = e2E;
barb1 = arrowStart + perp * arrowWidth + para * arrowLen;
barb2 = arrowStart - perp * arrowWidth + para * arrowLen;
putArrow(arrowStart, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
}
//***************************
// writeAngularDimBlock
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeAngularDimBlock(
const double* textMidPoint,
const double* lineDefPoint,
const double* startExt1,
const double* endExt1,
const double* startExt2,
const double* endExt2,
const char* dimText
)
{
Base::Vector3d e1S(MakeVector3d(startExt1)); // apex
Base::Vector3d e2S(MakeVector3d(startExt2));
Base::Vector3d e1E(MakeVector3d(endExt1));
Base::Vector3d e2E(MakeVector3d(endExt2));
Base::Vector3d e1 = e1E - e1S;
Base::Vector3d e2 = e2E - e2S;
double startAngle = atan2(e2.y, e2.x);
double endAngle = atan2(e1.y, e1.x);
double span = fabs(endAngle - startAngle);
double offset = span * 0.10;
if (startAngle < 0) {
startAngle += 2 * std::numbers::pi;
}
if (endAngle < 0) {
endAngle += 2 * std::numbers::pi;
}
Base::Vector3d startOff(cos(startAngle + offset), sin(startAngle + offset), 0.0);
Base::Vector3d endOff(cos(endAngle - offset), sin(endAngle - offset), 0.0);
startAngle = Base::toDegrees(startAngle);
endAngle = Base::toDegrees(endAngle);
Base::Vector3d linePt(MakeVector3d(lineDefPoint));
double radius = (e2S - linePt).Length();
(*m_ssBlock) << " 0" << endl;
(*m_ssBlock) << "ARC" << endl; // dimline arc
(*m_ssBlock) << " 5" << endl;
(*m_ssBlock) << getBlockHandle() << endl;
if (m_version > 12) {
(*m_ssBlock) << "330" << endl;
(*m_ssBlock) << m_saveBlkRecordHandle << endl;
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbEntity" << endl;
}
(*m_ssBlock) << " 8" << endl;
(*m_ssBlock) << "0" << endl;
// (*m_ssBlock) << " 62" << endl;
// (*m_ssBlock) << " 0" << endl;
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbCircle" << endl;
}
(*m_ssBlock) << " 10" << endl;
(*m_ssBlock) << startExt2[0] << endl; // arc center
(*m_ssBlock) << " 20" << endl;
(*m_ssBlock) << startExt2[1] << endl;
(*m_ssBlock) << " 30" << endl;
(*m_ssBlock) << startExt2[2] << endl;
(*m_ssBlock) << " 40" << endl;
(*m_ssBlock) << radius << endl; // radius
if (m_version > 12) {
(*m_ssBlock) << "100" << endl;
(*m_ssBlock) << "AcDbArc" << endl;
}
(*m_ssBlock) << " 50" << endl;
(*m_ssBlock) << startAngle << endl; // start angle
(*m_ssBlock) << " 51" << endl;
(*m_ssBlock) << endAngle << endl; // end angle
putText(
dimText,
toVector3d(textMidPoint),
toVector3d(textMidPoint),
3.5,
1,
m_ssBlock,
getBlockHandle(),
m_saveBlkRecordHandle
);
e1.Normalize();
e2.Normalize();
Base::Vector3d arrow1Start = e1S + e1 * radius;
Base::Vector3d arrow2Start = e2S + e2 * radius;
// wf: idk why the Tan pts have to be reversed. something to do with CW angles in Dxf?
Base::Vector3d endTan = e1S + (startOff * radius);
Base::Vector3d startTan = e2S + (endOff * radius);
Base::Vector3d tanP1 = (arrow1Start - startTan).Normalize();
Base::Vector3d perp1(-tanP1.y, tanP1.x, tanP1.z);
Base::Vector3d tanP2 = (arrow2Start - endTan).Normalize();
Base::Vector3d perp2(-tanP2.y, tanP2.x, tanP2.z);
double arrowLen = 5.0; // magic number
double arrowWidth = arrowLen / 6.0 / 2.0; // magic number calc!
Base::Vector3d barb1 = arrow1Start + perp1 * arrowWidth - tanP1 * arrowLen;
Base::Vector3d barb2 = arrow1Start - perp1 * arrowWidth - tanP1 * arrowLen;
putArrow(arrow1Start, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
barb1 = arrow2Start + perp2 * arrowWidth - tanP2 * arrowLen;
barb2 = arrow2Start - perp2 * arrowWidth - tanP2 * arrowLen;
putArrow(arrow2Start, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
}
//***************************
// writeRadialDimBlock
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeRadialDimBlock(
const double* centerPoint,
const double* textMidPoint,
const double* arcPoint,
const char* dimText
)
{
putLine(
toVector3d(centerPoint),
toVector3d(arcPoint),
m_ssBlock,
getBlockHandle(),
m_saveBlkRecordHandle
);
putText(
dimText,
toVector3d(textMidPoint),
toVector3d(textMidPoint),
3.5,
1,
m_ssBlock,
getBlockHandle(),
m_saveBlkRecordHandle
);
Base::Vector3d center(MakeVector3d(centerPoint));
Base::Vector3d a(MakeVector3d(arcPoint));
Base::Vector3d para = a - center;
double arrowLen = 5.0; // magic number
double arrowWidth = arrowLen / 6.0 / 2.0; // magic number calc!
para.Normalize();
Base::Vector3d perp(-para.y, para.x, para.z);
Base::Vector3d arrowStart = a;
Base::Vector3d barb1 = arrowStart + perp * arrowWidth - para * arrowLen;
Base::Vector3d barb2 = arrowStart - perp * arrowWidth - para * arrowLen;
putArrow(arrowStart, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
}
//***************************
// writeDiametricDimBlock
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeDiametricDimBlock(
const double* textMidPoint,
const double* arcPoint1,
const double* arcPoint2,
const char* dimText
)
{
putLine(toVector3d(arcPoint1), toVector3d(arcPoint2), m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
putText(
dimText,
toVector3d(textMidPoint),
toVector3d(textMidPoint),
3.5,
1,
m_ssBlock,
getBlockHandle(),
m_saveBlkRecordHandle
);
Base::Vector3d a1(MakeVector3d(arcPoint1));
Base::Vector3d a2(MakeVector3d(arcPoint2));
Base::Vector3d para = a2 - a1;
double arrowLen = 5.0; // magic number
double arrowWidth = arrowLen / 6.0 / 2.0; // magic number calc!
para.Normalize();
Base::Vector3d perp(-para.y, para.x, para.z);
Base::Vector3d arrowStart = a1;
Base::Vector3d barb1 = arrowStart + perp * arrowWidth + para * arrowLen;
Base::Vector3d barb2 = arrowStart - perp * arrowWidth + para * arrowLen;
putArrow(arrowStart, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
arrowStart = a2;
barb1 = arrowStart + perp * arrowWidth - para * arrowLen;
barb2 = arrowStart - perp * arrowWidth - para * arrowLen;
putArrow(arrowStart, barb1, barb2, m_ssBlock, getBlockHandle(), m_saveBlkRecordHandle);
}
//***************************
// writeBlocksSection
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeBlocksSection()
{
if (m_version < 14) {
std::stringstream ss;
ss << "blocks1" << m_version << ".rub";
std::string fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
}
// write blocks content
(*m_ofs) << (*m_ssBlock).str();
(*m_ofs) << " 0" << endl;
(*m_ofs) << "ENDSEC" << endl;
}
//***************************
// writeEntitiesSection
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeEntitiesSection()
{
std::stringstream ss;
ss << "entities" << m_version << ".rub";
std::string fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
// write entities content
(*m_ofs) << (*m_ssEntity).str();
(*m_ofs) << " 0" << endl;
(*m_ofs) << "ENDSEC" << endl;
}
//***************************
// writeObjectsSection
// added by Wandererfan 2018 (wandererfan@gmail.com) for FreeCAD project
void CDxfWrite::writeObjectsSection()
{
if (m_version < 14) {
return;
}
std::stringstream ss;
ss << "objects" << m_version << ".rub";
std::string fileSpec = m_dataDir + ss.str();
(*m_ofs) << getPlateFile(fileSpec);
}
const DxfUnits DxfUnits::Instance;
CDxfRead::CDxfRead(const std::string& filepath)
: m_ifs(new ifstream(filepath))
{
if (!(*m_ifs)) {
m_fail = true;
ImportError("DXF file didn't load\n");
return;
}
m_ifs->imbue(std::locale("C"));
}
CDxfRead::~CDxfRead()
{
delete m_ifs;
// Delete the Layer objects which are referenced by pointer from the Layers table.
for (auto& pair : Layers) {
delete pair.second;
}
}
// Static member initializers
const std::string CDxfRead::LineTypeByLayer("BYLAYER"); // NOLINT(runtime/string)
const std::string CDxfRead::LineTypeByBlock("BYBLOCK"); // NOLINT(runtime/string)
const std::string CDxfRead::DefaultLineType("CONTINUOUS"); // NOLINT(runtime/string)
//
// Setup for ProcessCommonEntityAttribute
void CDxfRead::Setup3DVectorAttribute(eDXFGroupCode_t x_record_type, Base::Vector3d& destination)
{
SetupScaledDoubleAttribute((eDXFGroupCode_t)(x_record_type + eXOffset), destination.x);
SetupScaledDoubleAttribute((eDXFGroupCode_t)(x_record_type + eYOffset), destination.y);
SetupScaledDoubleAttribute((eDXFGroupCode_t)(x_record_type + eZOffset), destination.z);
}
void CDxfRead::Setup3DCoordinatesIntoLists(
eDXFGroupCode_t x_record_type,
list<double>& x_destination,
list<double>& y_destination,
list<double>& z_destination
)
{
SetupScaledDoubleIntoList((eDXFGroupCode_t)(x_record_type + eXOffset), x_destination);
SetupScaledDoubleIntoList((eDXFGroupCode_t)(x_record_type + eYOffset), y_destination);
SetupScaledDoubleIntoList((eDXFGroupCode_t)(x_record_type + eZOffset), z_destination);
}
void CDxfRead::SetupScaledDoubleAttribute(eDXFGroupCode_t x_record_type, double& destination)
{
m_coordinate_attributes.emplace(x_record_type, std::pair(&ProcessScaledDouble, &destination));
}
void CDxfRead::SetupScaledDoubleIntoList(eDXFGroupCode_t x_record_type, list<double>& destination)
{
m_coordinate_attributes.emplace(
x_record_type,
std::pair(&ProcessScaledDoubleIntoList, &destination)
);
}
void CDxfRead::Setup3DDirectionAttribute(eDXFGroupCode_t x_record_type, Base::Vector3d& destination)
{
SetupValueAttribute((eDXFGroupCode_t)(x_record_type + eXOffset), destination.x);
SetupValueAttribute((eDXFGroupCode_t)(x_record_type + eYOffset), destination.y);
SetupValueAttribute((eDXFGroupCode_t)(x_record_type + eZOffset), destination.z);
}
void CDxfRead::SetupStringAttribute(eDXFGroupCode_t x_record_type, std::string& destination)
{
m_coordinate_attributes.emplace(x_record_type, std::pair(&ProcessStdString, &destination));
}
template<typename T>
void CDxfRead::SetupValueAttribute(eDXFGroupCode_t record_type, T& destination)
{
m_coordinate_attributes.emplace(record_type, std::pair(&ProcessValue<T>, &destination));
}
//
// Static processing helpers for ProcessCommonEntityAttribute
void CDxfRead::ProcessScaledDouble(CDxfRead* object, void* target)
{
std::istringstream ss;
ss.imbue(std::locale("C"));
ss.str(object->m_record_data);
double value = 0;
ss >> value;
if (ss.fail()) {
object->ImportError(
"Unable to parse value '%s', using zero as its value\n",
object->m_record_data
);
}
*static_cast<double*>(target) = object->mm(value);
}
void CDxfRead::ProcessScaledDoubleIntoList(CDxfRead* object, void* target)
{
std::istringstream ss;
ss.imbue(std::locale("C"));
ss.str(object->m_record_data);
double value = 0;
ss >> value;
if (ss.fail()) {
object->ImportError(
"Unable to parse value '%s', using zero as its value\n",
object->m_record_data
);
}
static_cast<std::list<double>*>(target)->push_back(object->mm(value));
}
template<typename T>
bool CDxfRead::ParseValue(CDxfRead* object, void* target)
{
std::istringstream ss;
ss.imbue(std::locale("C"));
ss.str(object->m_record_data);
ss >> *static_cast<T*>(target);
if (ss.fail()) {
object->ImportError(
"Unable to parse value '%s', using zero as its value\n",
object->m_record_data
);
*static_cast<T*>(target) = 0;
return false;
}
// TODO: Verify nothing it left but whitespace in ss.
return true;
}
void CDxfRead::ProcessStdString(CDxfRead* object, void* target)
{
*static_cast<std::string*>(target) = object->m_record_data;
}
void CDxfRead::InitializeAttributes()
{
m_coordinate_attributes.clear();
}
bool CDxfRead::ProcessAttribute()
{
auto found = m_coordinate_attributes.find(m_record_type);
if (found != m_coordinate_attributes.end()) {
(*found->second.first)(this, found->second.second);
return true;
}
return false;
}
void CDxfRead::ProcessAllAttributes()
{
while (get_next_record() && m_record_type != eObjectType) {
ProcessAttribute();
}
repeat_last_record();
}
void CDxfRead::ProcessAllEntityAttributes()
{
ProcessAllAttributes();
ResolveEntityAttributes();
}
void CDxfRead::ResolveEntityAttributes()
{
m_entityAttributes.ResolveBylayerAttributes(*this);
if (m_entityAttributes.m_paperSpace) {
m_stats.entityCounts["ENTITIES_IN_PAPERSPACE"]++;
}
// TODO: Look at the space and layer (hidden/frozen?) and options and return false if the entity
// is not needed.
// TODO: INSERT must not call this because an INSERT on a hidden layer should always be
// honoured.
// Calculate the net entity transformation.
// This is to handle the Object Coordinate System used in many DXF records. Note that versions
// before R13 used the term ECS (Entity Coordinate System) instead. Here's who uses OCS: Lines
// and Points use WCS except they can be extruded (have nonzero Thickness (39)) which occurs in
// the OCS Z direction all 3D objects use WCS entirely Dimensions use a mix of OCS and WCS,
// Circle, Arc, Dolid, Trace, Text, Attib, Attdef, Shape, Insert, (lw)Polyline/Vertex, hatch,
// image all use the OCS
//
// The transformed Z axis is in EntityNormalVector, but we rescale it in case the DXF contains
// an unnormalized value
if (EntityNormalVector.IsNull()) {
ImportError("Entity has zero-length extrusion direction\n");
}
EntityNormalVector.Normalize();
// Apply the Arbitrary Axis Algorithm to determine the X and Y directions
// The purpose of this algorithm is to calculate a conventional 3d orientation based only on a Z
// direction, while avoiding taking the cross product of two vectors that are nearly parallel,
// which would be subject to a lot of numerical inaccuracy. In this case, "close to" the Z axis
// means the X and Y components of EntityNormalVector are less than 1/64, a value chosen because
// it is exactly representable in all binary floating-point systems.
Base::Vector3d xDirection;
if (EntityNormalVector.x < ArbitraryAxisAlgorithmThreshold
&& EntityNormalVector.y < ArbitraryAxisAlgorithmThreshold) {
// The Z axis is close to the UCS Z axis, the X direction is UCSY × OCSZ
static const Base::Vector3d UCSYAxis(0, 1, 0);
xDirection = UCSYAxis % EntityNormalVector;
}
else {
// otherwise, the X direction is UCSZ × OCSZ
static const Base::Vector3d UCSZAxis(0, 0, 1);
xDirection = UCSZAxis % EntityNormalVector;
}
OCSOrientationTransform.setCol(0, xDirection);
// In all cases the Y direction is the Zdirection × XDirection which gives a right-hand
// orthonormal coordinate system
OCSOrientationTransform.setCol(1, EntityNormalVector % xDirection);
// and EntityNormalVector is of course the direction of the Z axis in the UCS.
OCSOrientationTransform.setCol(2, EntityNormalVector);
}
//
// The individual Entity reader functions
// These return false if they catch an exception and ignore it because of ignore_errors.
bool CDxfRead::ReadLine()
{
Base::Vector3d start;
Base::Vector3d end;
Setup3DVectorAttribute(ePrimaryPoint, start);
Setup3DVectorAttribute(ePoint2, end);
ProcessAllEntityAttributes();
OnReadLine(start, end, LineTypeIsHidden());
return true;
}
bool CDxfRead::ReadPoint()
{
Base::Vector3d location;
Setup3DVectorAttribute(ePrimaryPoint, location);
ProcessAllEntityAttributes();
OnReadPoint(location);
return true;
}
bool CDxfRead::ReadArc()
{
double start_angle_degrees = 0;
double end_angle_degrees = 0;
double radius = 0;
Base::Vector3d centre;
Base::Vector3d extrusionDirection(0, 0, 1);
Setup3DVectorAttribute(ePrimaryPoint, centre);
SetupScaledDoubleAttribute(eFloat1, radius);
SetupValueAttribute(eAngleDegrees1, start_angle_degrees);
SetupValueAttribute(eAngleDegrees2, end_angle_degrees);
Setup3DVectorAttribute(eExtrusionDirection, extrusionDirection);
ProcessAllEntityAttributes();
OnReadArc(
start_angle_degrees,
end_angle_degrees,
radius,
centre,
extrusionDirection.z,
LineTypeIsHidden()
);
return true;
}
bool CDxfRead::ReadSpline()
{
struct SplineData sd;
sd.degree = 0;
sd.knots = 0;
sd.flag = 0;
sd.control_points = 0;
sd.fit_points = 0;
Setup3DVectorAttribute(eExtrusionDirection, sd.norm);
SetupValueAttribute(eInteger1, sd.flag);
SetupValueAttribute(eInteger2, sd.degree);
SetupValueAttribute(eInteger3, sd.knots);
SetupValueAttribute(eInteger4, sd.control_points);
SetupValueAttribute(eInteger5, sd.fit_points);
SetupScaledDoubleIntoList(eFloat1, sd.knot);
SetupScaledDoubleIntoList(eFloat2, sd.weight);
Setup3DCoordinatesIntoLists(ePrimaryPoint, sd.controlx, sd.controly, sd.controlz);
Setup3DCoordinatesIntoLists(ePoint2, sd.fitx, sd.fity, sd.fitz);
Setup3DCoordinatesIntoLists(ePoint3, sd.starttanx, sd.starttany, sd.starttanz);
Setup3DCoordinatesIntoLists(ePoint4, sd.endtanx, sd.endtany, sd.endtanz);
ProcessAllEntityAttributes();
OnReadSpline(sd);
return true;
}
bool CDxfRead::ReadCircle()
{
double radius = 0.0;
Base::Vector3d centre;
Setup3DVectorAttribute(ePrimaryPoint, centre);
SetupScaledDoubleAttribute(eFloat1, radius);
ProcessAllEntityAttributes();
OnReadCircle(centre, radius, LineTypeIsHidden());
return true;
}
bool CDxfRead::ReadText()
{
Base::Vector3d insertionPoint;
// NOLINTBEGIN(cppcoreguidelines-avoid-magic-numbers, readability-magic-numbers)
double height = 0.03082;
double rotation = 0;
std::string textPrefix;
Setup3DVectorAttribute(ePrimaryPoint, insertionPoint);
SetupScaledDoubleAttribute(eFloat1, height);
SetupValueAttribute(eAngleDegrees1, rotation);
while (get_next_record() && m_record_type != eObjectType) {
if (!ProcessAttribute()) {
switch (m_record_type) {
case eExtraText:
// Additional text that goes before the type 1 text
// Note that if breaking the text into type-3 records splits a UFT-8 encoding we
// do the decoding after splicing the lines together. I'm not sure if this
// actually occurs, but handling the text this way will treat this condition
// properly.
case ePrimaryText:
// final text is treated the same.
// ORDER: We are asusming the type 1 record follows all the type 3's.
textPrefix.append(m_record_data);
break;
default:
break;
}
}
}
ResolveEntityAttributes();
if ((this->*stringToUTF8)(textPrefix)) {
OnReadText(insertionPoint, height, textPrefix, rotation);
}
else {
ImportError("Unable to process encoding for TEXT/MTEXT '%s'\n", textPrefix);
}
repeat_last_record();
return true;
}
bool CDxfRead::ReadEllipse()
{
Base::Vector3d centre;
Base::Vector3d majorAxisEnd; // relative to centre
double eccentricity = 0;
double startAngleRadians = 0;
double endAngleRadians = 2 * std::numbers::pi;
Setup3DVectorAttribute(ePrimaryPoint, centre);
Setup3DVectorAttribute(ePoint2, majorAxisEnd);
SetupValueAttribute(eFloat1, eccentricity);
SetupValueAttribute(eFloat2, startAngleRadians);
SetupValueAttribute(eFloat3, endAngleRadians);
ProcessAllEntityAttributes();
OnReadEllipse(centre, majorAxisEnd, eccentricity, startAngleRadians, endAngleRadians);
return true;
}
bool CDxfRead::ReadLwPolyLine()
{
VertexInfo currentVertex;
list<VertexInfo> vertices;
int flags = 0;
bool have_x = false;
bool have_y = false;
// The documentation for LZPOLYLINE does not specify how you know if you have a new vertex.
// It also does not specify where the bulge, line-width, etc for a particular segment are placed
// relative to the two end vertices.
// We assume here that if we see an X or Y coordinate but we already have the same coordinate,
// a new vertex is starting, and any previous vertex is completely specified. Furthermore, line
// attributes like bulge are placed between the X/Y coordinates for the vertex that starts the
// stroke and the X/Y coordinates for the vertex that ends the stroke or the end of the entity.
// In the latter case the stroke attributes apply to the closure stroke (if any) which ends at
// the first vertex.
Setup3DVectorAttribute(ePrimaryPoint, currentVertex.location);
SetupValueAttribute(eFloat3, currentVertex.bulge);
SetupValueAttribute(eInteger1, flags);
while (get_next_record() && m_record_type != eObjectType) {
if ((m_record_type == ePrimaryPoint + eXOffset && have_x)
|| (m_record_type == ePrimaryPoint + eYOffset && have_y)) {
// Starting a new vertex and there is a previous vertex. Save it and init a new one.
vertices.push_back(currentVertex);
currentVertex.location = Base::Vector3d();
currentVertex.bulge = 0.0;
have_x = m_record_type == ePrimaryPoint + eXOffset;
have_y = m_record_type == ePrimaryPoint + eYOffset;
}
else if (m_record_type == ePrimaryPoint + eXOffset) {
have_x = true;
}
else if (m_record_type == ePrimaryPoint + eYOffset) {
have_y = true;
}
ProcessAttribute();
}
// At the end of the entity if we have vertex information use this as the final vertex.
// (else it was a line with no vertices at all)
if (have_x || have_y) {
vertices.push_back(currentVertex);
}
ResolveEntityAttributes();
OnReadPolyline(vertices, flags);
repeat_last_record();
return true;
}
bool CDxfRead::ReadPolyLine()
{
VertexInfo currentVertex;
list<VertexInfo> vertices;
int flags = 0;
SetupValueAttribute(eInteger1, flags);
ProcessAllEntityAttributes();
// We are now followed by a series of VERTEX entities followed by ENDSEQ.
// To avoid eating and discarding the rest of the entieies if ENDSEQ is missing,
// we quit on any unknown type-0 record.
Setup3DVectorAttribute(ePrimaryPoint, currentVertex.location);
SetupValueAttribute(eFloat3, currentVertex.bulge);
while (get_next_record() && m_record_type == eObjectType && IsObjectName("VERTEX")) {
// Set vertex defaults
currentVertex.location = Base::Vector3d();
currentVertex.bulge = 0.0;
ProcessAllEntityAttributes();
vertices.push_back(currentVertex);
}
if (!IsObjectName("SEQEND")) {
ImportError("POLYLINE ends with '%s' record rather than 'SEQEND'\n", m_record_data);
repeat_last_record();
}
OnReadPolyline(vertices, flags);
return true;
}
bool CDxfRead::ReadInsert()
{
Base::Vector3d center;
Base::Vector3d scale(1, 1, 1);
double rotationDegrees = 0.0;
std::string blockName;
Setup3DVectorAttribute(ePrimaryPoint, center);
SetupValueAttribute(eFloat2, scale.x);
SetupValueAttribute(eFloat3, scale.y);
SetupValueAttribute(eFloat4, scale.z);
SetupValueAttribute(eAngleDegrees1, rotationDegrees);
SetupStringAttribute(eName, blockName);
ProcessAllEntityAttributes();
OnReadInsert(center, scale, blockName, Base::toRadians(rotationDegrees));
return (true);
}
bool CDxfRead::ReadDimension()
{
Base::Vector3d start;
Base::Vector3d end;
Base::Vector3d linePosition;
Base::Vector3d textPosition;
double rotation = 0;
int dimensionType = 0; // This appears to default to zero
// Per documentation:
// 10 is the "dimension line location"
// 11 is the midpoint of the dimension text
// 13 is the start point of the 1st extension line
// 14 is the start point of the 2nd extension line
// 50 is the rotation of the dimension (the direction of the dimension line)
// 52 (if present) is the angle relative to the dimension line for the extension lines; default
// 90 degrees
Setup3DVectorAttribute(ePoint4, start); // WCS
Setup3DVectorAttribute(ePoint5, end); // WCS
Setup3DVectorAttribute(ePrimaryPoint, linePosition); // WCS
Setup3DVectorAttribute(ePoint2, textPosition); // OCS
SetupValueAttribute(eAngleDegrees1, rotation);
SetupValueAttribute(eInteger1, dimensionType);
ProcessAllEntityAttributes();
dimensionType &= eTypeMask; // Remove flags
switch ((eDimensionType_t)dimensionType) {
case eLinear:
case eAligned:
OnReadDimension(start, end, linePosition, dimensionType, Base::toRadians(rotation));
break;
default:
UnsupportedFeature("Dimension type '%d'", dimensionType);
break;
}
return true;
}
bool CDxfRead::ReadUnknownEntity()
{
ProcessAllEntityAttributes();
UnsupportedFeature("Entity type '%s'", m_current_entity_name.c_str());
return true;
}
bool CDxfRead::ReadBlockInfo()
{
int blockType = 0;
std::string blockName;
InitializeAttributes();
// Both 2 and 3 are the block name.
SetupStringAttribute(eName, blockName);
SetupStringAttribute(eExtraText, blockName);
SetupValueAttribute(eInteger1, blockType);
ProcessAllAttributes();
return OnReadBlock(blockName, blockType);
}
bool CDxfRead::ReadBlockContents()
{
while (get_next_record() && m_record_type == eObjectType && !IsObjectName("ENDBLK")) {
if (IgnoreErrors()) {
try {
if (!ReadEntity()) {
return false;
}
}
catch (...) {
}
}
else {
if (!ReadEntity()) {
return false;
}
}
}
return true;
}
bool CDxfRead::SkipBlockContents()
{
while (get_next_record() && m_record_type == eObjectType && !IsObjectName("ENDBLK")) {
if (IgnoreErrors()) {
try {
ProcessAllAttributes();
}
catch (...) {
}
}
else {
ProcessAllAttributes();
}
}
return true;
}
template<typename... args>
void CDxfRead::UnsupportedFeature(const char* format, args&&... argValuess)
{
// NOLINTNEXTLINE(runtime/printf)
std::string formattedMessage = fmt::sprintf(format, std::forward<args>(argValuess)...);
m_stats.unsupportedFeatures[formattedMessage].emplace_back(
m_current_entity_line_number,
m_current_entity_handle
);
}
bool CDxfRead::get_next_record()
{
if (m_repeat_last_record) {
m_repeat_last_record = false;
return m_not_eof;
}
do {
if ((*m_ifs).eof()) {
m_not_eof = false;
return false;
}
std::getline(*m_ifs, m_record_data);
++m_line;
int temp = 0;
if (!ParseValue<int>(this, &temp)) {
ImportError(
"CDxfRead::get_next_record() Failed to get integer record type from '%s'\n",
m_record_data
);
return false;
}
m_record_type = (eDXFGroupCode_t)temp;
if ((*m_ifs).eof()) {
return false;
}
std::getline(*m_ifs, m_record_data);
++m_line;
} while (m_record_type == eComment);
// Remove any carriage return at the end of m_str which may occur because of inconsistent
// handling of LF vs. CRLF line termination.
auto last = m_record_data.rbegin();
if (last != m_record_data.rend() && *last == '\r') {
m_record_data.pop_back();
}
// The code that was here just blindly trimmed leading white space, but if you have, for
// instance, a TEXT entity whose text starts with spaces, or, more plausibly, a long TEXT entity
// where the text is broken into one or more type-3 records with a final type-1 and the break
// happens to be just before a space, this would be wrong.
return true;
}
void CDxfRead::repeat_last_record()
{
m_repeat_last_record = true;
}
//
// Intercepts for On... calls to derived class
// (These have distinct signatures from the ones they call)
bool CDxfRead::ExplodePolyline(std::list<VertexInfo>& vertices, int flags)
{
if (vertices.size() < 2) {
// TODO: Warning
return true;
}
bool closed = ((flags & 1) != 0);
auto startVertex = vertices.end();
if (closed) {
// If the shape is closed, point at the last vertex. The first stroke drawn will be the
// closure.
--startVertex;
}
for (auto endVertex = vertices.begin(); endVertex != vertices.end(); endVertex++) {
if (startVertex != vertices.end()) {
if (startVertex->bulge != 0.0) {
// Bulge is 1/4 tan(arc angle), positive for CCW arc.
double cot = ((1.0 / startVertex->bulge) - startVertex->bulge) / 2;
double cx = ((startVertex->location.x + endVertex->location.x)
- ((endVertex->location.y - startVertex->location.y) * cot))
/ 2;
double cy = ((startVertex->location.y + endVertex->location.y)
+ ((endVertex->location.x - startVertex->location.x) * cot))
/ 2;
Base::Vector3d pc(cx, cy, (startVertex->location.z + endVertex->location.z) / 2);
OnReadArc(startVertex->location, endVertex->location, pc, startVertex->bulge >= 0, false);
}
else {
OnReadLine(startVertex->location, endVertex->location, false);
}
}
// elsethis is the first loop iteration on an open shape, endVertex is the first point, and
// there is no closure line to draw engin there.
startVertex = endVertex;
}
return true;
}
void CDxfRead::OnReadArc(
double start_angle,
double end_angle,
double radius,
const Base::Vector3d& center,
double z_extrusion_dir,
bool hidden
)
{
Base::Vector3d temp(center);
// Calculate the start and end points of the arc
Base::Vector3d start(center);
start.x += radius * cos(Base::toRadians(start_angle));
start.y += radius * sin(Base::toRadians(start_angle));
Base::Vector3d end(center);
end.x += radius * cos(Base::toRadians(end_angle));
end.y += radius * sin(Base::toRadians(end_angle));
if (z_extrusion_dir < 0) {
// This is a dumbed-down handling of general OCS. This only works
// for arcs drawn exactly upside down (i.e. with the extrusion vector
// being (0, 0, <0).
// We treat this as 180-degree mirroring through the YZ plane
// TODO: I don't even think this is correct, but it is functionally what the
// code did before.
temp.x = -temp.x;
start.x = -start.x;
end.x = -end.x;
}
OnReadArc(start, end, temp, true, hidden);
}
void CDxfRead::OnReadCircle(const Base::Vector3d& center, double radius, bool hidden)
{
// OnReadCircle wants a start point, so we pick an arbitrary point on the circumference
Base::Vector3d start(center);
start.x += radius;
OnReadCircle(
start,
center,
false,
hidden
); // false to change direction because otherwise the arc length is zero
}
// NOLINTBEGIN(bugprone-easily-swappable-parameters)
void CDxfRead::OnReadEllipse(
const Base::Vector3d& center,
const Base::Vector3d& majorAxisEnd,
double ratio,
double start_angle,
double end_angle
)
// NOLINTEND(bugprone-easily-swappable-parameters)
{
double major_radius = majorAxisEnd.Length();
double minor_radius = major_radius * ratio;
// Since we only support 2d stuff, we can calculate the rotation from the major axis x and y
// value only, since z is zero, major_radius is the vector length
double rotation = atan2(majorAxisEnd.y, majorAxisEnd.x);
OnReadEllipse(center, major_radius, minor_radius, rotation, start_angle, end_angle, true);
}
bool CDxfRead::ReadVersion()
{
static const std::vector<std::string> VersionNames = {
// This table is indexed by eDXFVersion_t - (ROlder+1)
"AC1006",
"AC1009",
"AC1012",
"AC1014",
"AC1015",
"AC1018",
"AC1021",
"AC1024",
"AC1027",
"AC1032"
};
assert(VersionNames.size() == RNewer - ROlder - 1);
get_next_record(); // Get the value for the variable
auto first = VersionNames.cbegin();
auto last = VersionNames.cend();
auto found = std::lower_bound(first, last, m_record_data);
if (found == last) {
m_version = RNewer;
}
else if (*found == m_record_data) {
m_version = (eDXFVersion_t)((int)std::distance(first, found) + (ROlder + 1));
}
else if (found == first) {
m_version = ROlder;
}
else {
m_version = RUnknown;
}
m_stats.dxfVersion = m_record_data;
return ResolveEncoding();
}
bool CDxfRead::ReadDWGCodePage()
{
get_next_record(); // Get the value for the variable
assert(m_CodePage.empty()); // If not, we have found two DWGCODEPAGE variables or DoRead
// was called twice on the same CDxfRead object.
m_CodePage = m_record_data;
return ResolveEncoding();
}
bool CDxfRead::ResolveEncoding()
{
if (m_version >= R2007) { // Note this does not include RUnknown, but does include RLater
m_encoding = "utf_8";
stringToUTF8 = &CDxfRead::UTF8ToUTF8;
}
else if (m_CodePage.empty()) {
// cp1252
m_encoding = "cp1252";
stringToUTF8 = &CDxfRead::GeneralToUTF8;
}
else {
// Codepage names may be of the form "ansi_1252" which we map to "cp1252" but we don't map
// "ansi_x3xxxx" (which happens to mean "ascii")
// Also some DXF files have the codepage name in uppercase so we lowercase it.
m_encoding = m_CodePage;
std::transform(m_encoding.begin(), m_encoding.end(), m_encoding.begin(), ::tolower);
// Add mapping for common non-standard encoding names.
if (m_encoding == "8859_1") {
m_encoding = "iso-8859-1"; // Replace with a name Python understands
}
// NOLINTNEXTLINE(readability/nolint)
#define ANSI_ENCODING_PREFIX "ansi_" // NOLINT(cppcoreguidelines-macro-usage)
if (m_encoding.rfind(ANSI_ENCODING_PREFIX, 0) == 0 && m_encoding.rfind("ansi_x3", 0) != 0) {
m_encoding.replace(0, (sizeof ANSI_ENCODING_PREFIX) - 1, "cp");
}
// At this point we want to recognize synonyms for "utf_8" and use the custom decoder
// function. This is because this is one of the common cases and our decoder function is a
// fast no-op. We don't actually use the decoder function we get from PyCodec_Decoder
// because to call it we have to convert the (char *) text into a 'bytes' object first so we
// can pass it to the function using PyObject_Callxxx(), getting the PYObject containing the
// Python string, which we then decode back to UTF-8. It is simpler to call
// PyUnicode_DecodeXxxx which takes a (const char *) and is just a direct c++ callable.
Base::PyGILStateLocker lock;
PyObject* pyDecoder = PyCodec_Decoder(m_encoding.c_str());
if (pyDecoder == nullptr) {
// PyCodec_Decoder failed, which means Python could not find the encoding.
// This sets a Python LookupError. We clear this low-level error because
// our caller will throw a more informative, high-level exception.
PyErr_Clear();
return false;
}
PyObject* pyUTF8Decoder = PyCodec_Decoder("utf_8");
assert(pyUTF8Decoder != nullptr);
if (pyDecoder == pyUTF8Decoder) {
stringToUTF8 = &CDxfRead::UTF8ToUTF8;
}
else {
stringToUTF8 = &CDxfRead::GeneralToUTF8;
}
Py_DECREF(pyDecoder);
Py_DECREF(pyUTF8Decoder);
}
m_stats.dxfEncoding = m_encoding;
return !m_encoding.empty();
}
// NOLINTNEXTLINE(readability/nolint)
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
bool CDxfRead::UTF8ToUTF8(std::string& /*encoded*/) const
{
return true;
}
bool CDxfRead::GeneralToUTF8(std::string& encoded) const
{
Base::PyGILStateLocker lock;
PyObject* decoded
= PyUnicode_Decode(encoded.c_str(), (Py_ssize_t)encoded.length(), m_encoding.c_str(), "strict");
if (decoded == nullptr) {
return false;
}
const char* converted = PyUnicode_AsUTF8(decoded);
// converted has the same lifetime as decoded so we don't have to delete it.
if (converted != nullptr) {
encoded = converted;
}
Py_DECREF(decoded);
return converted != nullptr;
}
void CDxfRead::DoRead(const bool ignore_errors /* = false */)
{
m_ignore_errors = ignore_errors;
if (m_fail) {
return;
}
try {
StartImport();
// Loop reading the sections.
while (get_next_record()) {
if (m_record_type != eObjectType) {
ImportError(
"Found type %d record when expecting start of a SECTION or EOF\n",
(int)m_record_type
);
continue;
}
if (IsObjectName("EOF")) { // TODO: Check for drivel beyond EOF record
break;
}
if (!IsObjectName("SECTION")) {
ImportError(
"Found %s record when expecting start of a SECTION\n",
m_record_data.c_str()
);
continue;
}
if (!ReadSection()) {
throw Base::Exception("Failed to read DXF section (returned false).");
}
}
FinishImport();
}
catch (const Base::Exception& e) {
// This catches specific FreeCAD exceptions and re-throws them.
throw;
}
catch (const std::exception& e) {
// This catches all standard C++ exceptions and converts them
// to a FreeCAD exception, which the binding layer can handle.
throw Base::Exception(e.what());
}
catch (...) {
// This is a catch-all for any other non-standard C++ exceptions.
throw Base::Exception("An unknown, non-standard C++ exception occurred during DXF import.");
}
}
bool CDxfRead::ReadSection()
{
if (!get_next_record()) {
throw Base::Exception("Unexpected end of file after SECTION tag.");
}
if (m_record_type != eName) {
ImportError("Ignored SECTION with no name record\n");
return ReadIgnoredSection();
}
if (IsObjectName("HEADER")) {
if (!ReadHeaderSection()) {
throw Base::Exception("Failed while reading HEADER section.");
}
return true;
}
if (IsObjectName("TABLES")) {
if (!ReadTablesSection()) {
throw Base::Exception("Failed while reading TABLES section.");
}
return true;
}
if (IsObjectName("BLOCKS")) {
if (!ReadBlocksSection()) {
throw Base::Exception("Failed while reading BLOCKS section.");
}
return true;
}
if (IsObjectName("ENTITIES")) {
if (!ReadEntitiesSection()) {
throw Base::Exception("Failed while reading ENTITIES section.");
}
return true;
}
if (!ReadIgnoredSection()) {
throw Base::Exception("Failed while reading an unknown/ignored section.");
}
return true;
}
void CDxfRead::ProcessLayerReference(CDxfRead* object, void* target)
{
if (!object->Layers.contains(object->m_record_data)) {
object->ImportError("First reference to missing Layer '%s'", object->m_record_data);
// Synthesize the Layer so we don't get the same error again.
// We need to take copies of the string arguments because MakeLayer uses them as move
// inputs.
object->Layers[object->m_record_data]
= object->MakeLayer(object->m_record_data, DefaultColor, std::string(DefaultLineType));
}
*static_cast<Layer**>(target) = object->Layers.at(object->m_record_data);
}
bool CDxfRead::ReadEntity()
{
m_current_entity_line_number = m_line;
m_current_entity_name = m_record_data;
InitializeAttributes();
m_entityAttributes.SetDefaults();
m_current_entity_handle.clear();
SetupStringAttribute(eHandle, m_current_entity_handle);
EntityNormalVector.Set(0, 0, 1);
Setup3DVectorAttribute(eExtrusionDirection, EntityNormalVector);
SetupStringAttribute(eLinetypeName, m_entityAttributes.m_LineType);
m_coordinate_attributes.emplace(
eLayerName,
std::pair(&ProcessLayerReference, &m_entityAttributes.m_Layer)
);
SetupValueAttribute(
eCoordinateSpace,
m_entityAttributes.m_paperSpace
); // TODO: Ensure the stream is noboolalpha (for that
// matter ensure the stream has the "C" locale
SetupValueAttribute(eColor, m_entityAttributes.m_Color);
m_stats.entityCounts[m_record_data]++;
// The entity record is already the current record and is already checked as a type 0 record
if (IsObjectName("LINE")) {
return ReadLine();
}
if (IsObjectName("ARC")) {
return ReadArc();
}
if (IsObjectName("CIRCLE")) {
return ReadCircle();
}
if (IsObjectName("MTEXT")) {
return ReadText();
}
if (IsObjectName("TEXT")) {
return ReadText();
}
if (IsObjectName("ELLIPSE")) {
return ReadEllipse();
}
if (IsObjectName("SPLINE")) {
return ReadSpline();
}
if (IsObjectName("LWPOLYLINE")) {
return ReadLwPolyLine();
}
if (IsObjectName("POLYLINE")) {
return ReadPolyLine();
}
if (IsObjectName("POINT")) {
return ReadPoint();
}
if (IsObjectName("INSERT")) {
return ReadInsert();
}
if (IsObjectName("DIMENSION")) {
return ReadDimension();
}
return ReadUnknownEntity();
}
bool CDxfRead::ReadHeaderSection()
{
// Read to the next ENDSEC record marking the end of the section.
// This section contains variables, most of which we ignore. Each one is a type-9 record giving
// the variable name, followed by a single record giving the value; the record type depends on
// the variable's data type.
while (get_next_record()) {
if (m_record_type == eObjectType && IsObjectName("ENDSEC")) {
if (m_unitScalingFactor == 0.0) {
// Neither INSUNITS nor MEASUREMENT found, assume 1 DXF unit = 1mm
// TODO: Perhaps this default should depend on the current project's unit system
m_unitScalingFactor = m_additionalScaling;
m_stats.fileUnits = "Unspecified (Defaulting to 1:1)";
}
m_stats.finalScalingFactor = m_unitScalingFactor;
return true;
}
if (m_record_type != eVariableName) {
continue; // Quietly ignore unknown record types
}
// Store the variable name before we try to read its value.
std::string currentVarName = m_record_data;
if (!ReadVariable()) {
// If ReadVariable returns false, throw an exception with the variable name.
throw Base::Exception("Failed while reading value for HEADER variable: " + currentVarName);
}
}
// If the loop finishes without finding ENDSEC, it's an error.
throw Base::Exception("Unexpected end of file inside HEADER section.");
}
bool CDxfRead::ReadVariable()
{
if (IsVariableName("$INSUNITS")) {
get_next_record(); // Get the value for the variable
int varValue = 0;
if (!ParseValue<int>(this, &varValue)) {
ImportError("Failed to get integer from INSUNITS value '%s'\n", m_record_data);
}
else {
auto units = DxfUnits::eDxfUnits_t(varValue);
if (!DxfUnits::IsValid(units)) {
units = DxfUnits::eUnspecified;
}
m_unitScalingFactor = DxfUnits::Factor(units) * m_additionalScaling;
m_stats.scalingSource = "$INSUNITS";
m_stats.fileUnits = DxfUnitToString(units);
}
return true;
}
if (IsVariableName("$MEASUREMENT")) {
get_next_record();
int varValue = 1;
if (m_unitScalingFactor == 0.0 && ParseValue<int>(this, &varValue)) {
auto units = (varValue != 0 ? DxfUnits::eMillimeters : DxfUnits::eInches);
m_unitScalingFactor = DxfUnits::Factor(units) * m_additionalScaling;
m_stats.scalingSource = "$MEASUREMENT";
m_stats.fileUnits = DxfUnitToString(units);
}
return true;
}
if (IsVariableName("$ACADVER")) {
return ReadVersion();
}
if (IsVariableName("$DWGCODEPAGE")) {
return ReadDWGCodePage();
}
// any other variable, skip its value
return get_next_record();
}
bool CDxfRead::ReadTablesSection()
{
// Read to the next ENDSEC record marking the end of the section.
// This section contains various tables, many of which we ignore. Each one is a type-0 TABLE
// record followed by a type-2 (name) record giving the table name, followed by the table
// contents. Each set of contents is terminates by the next type-0 TABLE or ENDSEC directive.
while (get_next_record()) {
if (m_record_type != eObjectType) {
continue; // Ignore any non-type-0 contents in the section.
}
if (IsObjectName("ENDSEC")) {
return true;
}
if (!IsObjectName("TABLE")) {
continue; // Ignore any type-0 non-TABLE contents in the section
}
get_next_record();
if (m_record_type != eName) {
ImportError("Found unexpected type %d record instead of table name\n", (int)m_record_type);
}
else if (IsObjectName("LAYER")) {
if (!ReadLayerTable()) {
return false;
}
}
else {
if (!ReadIgnoredTable()) {
return false;
}
}
}
return false;
}
bool CDxfRead::ReadIgnoredSection()
{
// Read to the next ENDSEC record marking the end of the section.
while (get_next_record()) {
if (m_record_type == eObjectType && IsObjectName("ENDSEC")) {
return true;
}
}
return false;
}
bool CDxfRead::ReadBlocksSection()
{
// Read to the next ENDSEC record marking the end of the section.
// Within this section we should find type-0 BLOCK groups
while (get_next_record()) {
if (m_record_type != eObjectType) {
continue; // quietly ignore non-type-0 records;
}
if (IsObjectName("ENDSEC")) {
// End of section
return true;
}
if (!IsObjectName("BLOCK")) {
continue; // quietly ignore non-BLOCK records
}
if (!ReadBlockInfo()) {
ImportError("CDxfRead::DoRead() Failed to read block\n");
}
}
return false;
}
bool CDxfRead::ReadEntitiesSection()
{
// Read to the next ENDSEC record marking the end of the section.
// Within this section we should find type-0 BLOCK groups
while (get_next_record()) {
if (m_record_type != eObjectType) {
continue; // quietly ignore non-type-0 records;
}
if (IsObjectName("ENDSEC")) {
// End of section
return true;
}
if (IgnoreErrors()) {
try {
if (!ReadEntity()) {
return false;
}
}
catch (const Base::Exception& e) {
e.reportException();
}
catch (...) {
ImportError("CDxfRead::ReadEntity raised unknown exception\n");
}
}
else {
if (!ReadEntity()) {
return false;
}
}
}
return false;
}
bool CDxfRead::ReadLayer()
{
std::string layername;
ColorIndex_t layerColor = DefaultColor;
int layerFlags = 0;
std::string lineTypeName(DefaultLineType);
InitializeAttributes();
SetupStringAttribute(eName, layername);
SetupValueAttribute(eColor, layerColor);
SetupValueAttribute(eInteger1, layerFlags);
SetupStringAttribute(eLinetypeName, lineTypeName);
ProcessAllAttributes();
if (layername.empty()) {
ImportError("CDxfRead::ReadLayer() - no layer name\n");
return false;
}
if ((layerFlags & 0x01) != 0) {
// Frozen layers are implicitly hidden which we don't do yet.
// TODO: Should have an import option to omit frozen layers.
UnsupportedFeature("Frozen layers");
}
Layers[layername] = MakeLayer(layername, layerColor, std::move(lineTypeName));
return true;
}
CDxfRead::Layer* CDxfRead::MakeLayer(const std::string& name, ColorIndex_t color, std::string&& lineType)
{
return new Layer(name, color, std::move(lineType));
}
bool CDxfRead::ReadLayerTable()
{
// Read to the next TABLE record indicating another table in the TABLES section, or to the
// ENDSEC record marking the end of the TABLES section. This table contains a series of type-0
// LAYER groups
while (get_next_record()) {
if (m_record_type != eObjectType) {
continue; // quietly ignore non-type-0 records; this table has some preamble
}
if (IsObjectName("TABLE") || IsObjectName("ENDSEC")) {
// End of table
repeat_last_record();
return true;
}
if (!IsObjectName("LAYER")) {
continue; // quietly ignore non-LAYER records
}
if (!ReadLayer()) {
ImportError("CDxfRead::DoRead() Failed to read layer\n");
}
}
return false;
}
bool CDxfRead::ReadIgnoredTable()
{
// Read to the next TABLE record indicating another table in the TABLES section, or to the
// ENDSEC record marking the end of the TABLES section.
while (get_next_record()) {
if (m_record_type == eObjectType && (IsObjectName("TABLE") || IsObjectName("ENDSEC"))) {
repeat_last_record();
return true;
}
}
return false;
}
// NOLINTBEGIN(cppcoreguidelines-avoid-magic-numbers, readability-magic-numbers)
inline static double level(int distance, double blackLevel)
{
// Distance is the number of 24ths around the color wheel between the desired hue and
// the primary hue in question. Coming in it is a ordinate difference and so can be negative
// so the first thing we do is take its absolute value.
if (distance < 0) {
distance = -distance;
}
// If the distance is greater than 12, it is measuring the long way around the color wheel so we
// reduce it to measuring along the short way instead
if (distance > 12) {
distance = 24 - distance;
}
if (distance <= 4) {
// A distance 4 or less givs full intensity of the primary color
return 1.0;
}
if (distance < 8) {
// Between 4 and 8 gives a blend of the full primary and the black level
return ((8 - distance) + blackLevel * (distance - 4)) / 4;
}
// 8 and beyond yield the black level
return blackLevel;
}
inline static Base::Color wheel(int hue, double blackLevel, double multiplier = 1.0)
{
return Base::Color(
(float)(level(hue - 0, blackLevel) * multiplier),
(float)(level(hue - 8, blackLevel) * multiplier),
(float)(level(hue - 16, blackLevel) * multiplier)
);
}
Base::Color CDxfRead::ObjectColor(ColorIndex_t index)
{
// TODO: If it is ColorByBlock we need to use the color of the INSERT entity.
// This is tricky because a block can itself contain INSERT entities and we don't currently
// record the required information. IIRC INSERT in a block will do something strange like
// try to insert the block into the main drawing instead of into the block being defined.
// The first 7 colors (1-7) have ad hoc names red, yellow, green, cyan, blue, magenta, and
// black. 8, 9, 250-254 are lightening shades of gray. These are rendered by the app in a manner
// to contrast with the background color.
// For others, (color/10) determines the hue around the
// color circle, with even numbers fading to black on the tens digit,
// and odd numberd being blended with AA and again fading to black.
// The fade is FF BD 81 68 4F (100%, 74%, 50%, 40%, 30%) indexed by (index/2)%5
// The AA fades as AA 7E 56 45 35 which is almost the exact same percentages.
// For hue, (index-10)/10 : 0 is ff0000, and each step linearly adds green until 4 is pure
// yellow ffff00, then red starts to fade... until but not including 24 which is back to ff0000.
Base::Color result = Base::Color();
if (index == 0) {
// Technically, 0 is BYBLOCK and not a real color, but all that means is that an object in a
// block cannot specifically ask to be black. These colors are all contrasted to the
// background so there is no objective black colour, through 255 is an objective white.
result = Base::Color();
}
else if (index < 7) {
result = wheel((index - 1) * 4, 0x00);
}
else if (index == 7) {
// DXF color 7 is "black/white" and should adapt to the background.
// Since we cannot easily query the background theme from here, we will use a
// neutral mid-gray, which is visible on both light and dark themes.
result = Base::Color(0.5f, 0.5f, 0.5f);
}
else if (index == 8) {
result = Base::Color(0.5, 0.5, 0.5);
}
else if (index == 9) {
result = Base::Color(0.75, 0.75, 0.75);
}
else if (index >= 250) {
auto brightness = (float)((index - 250 + (255 - index) * 0.2) / 5);
result = Base::Color(brightness, brightness, brightness);
}
else {
static const std::array<float, 5> fades = {1.00F, 0.74F, 0.50F, 0.40F, 0.30F};
return wheel(index / 10 - 1, (index & 1) != 0 ? 0.69 : 0, fades[(index / 2) % 5]);
}
// TODO: These colors are modified to contrast with the background. In the original program
// this is just a rendering feature, but FreeCAD does not support this so the user has the
// option of modifying the colors to contrast with the background at time of import.
return result;
}
// NOLINTEND(cppcoreguidelines-avoid-magic-numbers, readability-magic-numbers)
template void CDxfRead::UnsupportedFeature<>(const char*);