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|
| """ |
| An example for a high-level custom feature object to form a full-parametric distance bolt. |
| """ |
|
|
| __author__ = "Werner Mayer <wmayer@users.sourceforge.net>" |
|
|
| import FreeCAD, Part, math |
| from FreeCAD import Base |
|
|
|
|
| class DistanceBolt: |
| def __init__(self, obj): |
| """Add the properties: Length, Edges, Radius, Height""" |
| obj.addProperty( |
| "App::PropertyInteger", "Edges", "Bolt", "Number of edges of the outline", locked=True |
| ).Edges = 6 |
| obj.addProperty( |
| "App::PropertyLength", |
| "Length", |
| "Bolt", |
| "Length of the edges of the outline", |
| locked=True, |
| ).Length = 10.0 |
| obj.addProperty( |
| "App::PropertyLength", "Radius", "Bolt", "Radius of the inner circle", locked=True |
| ).Radius = 4.0 |
| obj.addProperty( |
| "App::PropertyLength", "Height", "Bolt", "Height of the extrusion", locked=True |
| ).Height = 20.0 |
| obj.Proxy = self |
|
|
| def onChanged(self, fp, prop): |
| if prop == "Edges" or prop == "Length" or prop == "Radius" or prop == "Height": |
| self.execute(fp) |
|
|
| def execute(self, fp): |
| edges = fp.Edges |
| if edges < 3: |
| edges = 3 |
| length = fp.Length |
| radius = fp.Radius |
| height = fp.Height |
|
|
| m = Base.Matrix() |
| m.rotateZ(math.radians(360.0 / edges)) |
|
|
| |
| polygon = [] |
| v = Base.Vector(length, 0, 0) |
| for i in range(edges): |
| polygon.append(v) |
| v = m.multiply(v) |
| polygon.append(v) |
| wire = Part.makePolygon(polygon) |
|
|
| |
| circ = Part.makeCircle(radius) |
|
|
| |
| face = Part.Face([wire, Part.Wire(circ)]) |
|
|
| |
| extrude = face.extrude(Base.Vector(0, 0, height)) |
| fp.Shape = extrude |
|
|
|
|
| def makeDistanceBolt(): |
| doc = FreeCAD.activeDocument() |
| if doc is None: |
| doc = FreeCAD.newDocument() |
| bolt = doc.addObject("Part::FeaturePython", "Distance_Bolt") |
| bolt.Label = "Distance bolt" |
| DistanceBolt(bolt) |
| bolt.ViewObject.Proxy = 0 |
|
|
