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ejeschke/ginga | ginga/mockw/ImageViewMock.py | ImageViewEvent.key_press_event | def key_press_event(self, widget, event):
"""
Called when a key is pressed and the window has the focus.
Adjust method signature as appropriate for callback.
"""
# get keyname or keycode and translate to ginga standard
# keyname =
# keycode =
keyname = '' ... | python | def key_press_event(self, widget, event):
"""
Called when a key is pressed and the window has the focus.
Adjust method signature as appropriate for callback.
"""
# get keyname or keycode and translate to ginga standard
# keyname =
# keycode =
keyname = '' ... | [
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ejeschke/ginga | ginga/mockw/ImageViewMock.py | ImageViewEvent.key_release_event | def key_release_event(self, widget, event):
"""
Called when a key is released after being pressed.
Adjust method signature as appropriate for callback.
"""
# get keyname or keycode and translate to ginga standard
# keyname =
# keycode =
keyname = '' # sel... | python | def key_release_event(self, widget, event):
"""
Called when a key is released after being pressed.
Adjust method signature as appropriate for callback.
"""
# get keyname or keycode and translate to ginga standard
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ejeschke/ginga | ginga/qtw/ImageViewQt.py | ScrolledView.resizeEvent | def resizeEvent(self, event):
"""Override from QAbstractScrollArea.
Resize the viewer widget when the viewport is resized."""
vp = self.viewport()
rect = vp.geometry()
x1, y1, x2, y2 = rect.getCoords()
width = x2 - x1 + 1
height = y2 - y1 + 1
self.v_w.res... | python | def resizeEvent(self, event):
"""Override from QAbstractScrollArea.
Resize the viewer widget when the viewport is resized."""
vp = self.viewport()
rect = vp.geometry()
x1, y1, x2, y2 = rect.getCoords()
width = x2 - x1 + 1
height = y2 - y1 + 1
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ejeschke/ginga | ginga/qtw/ImageViewQt.py | ScrolledView.scrollContentsBy | def scrollContentsBy(self, dx, dy):
"""Override from QAbstractScrollArea.
Called when the scroll bars are adjusted by the user.
"""
if self._adjusting:
return
self._scrolling = True
try:
bd = self.viewer.get_bindings()
res = bd.calc_pa... | python | def scrollContentsBy(self, dx, dy):
"""Override from QAbstractScrollArea.
Called when the scroll bars are adjusted by the user.
"""
if self._adjusting:
return
self._scrolling = True
try:
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ejeschke/ginga | ginga/canvas/transform.py | get_catalog | def get_catalog():
"""Returns a catalog of available transforms. These are used to
build chains for rendering with different back ends.
"""
tforms = {}
for name, value in list(globals().items()):
if name.endswith('Transform'):
tforms[name] = value
return Bunch.Bunch(tforms,... | python | def get_catalog():
"""Returns a catalog of available transforms. These are used to
build chains for rendering with different back ends.
"""
tforms = {}
for name, value in list(globals().items()):
if name.endswith('Transform'):
tforms[name] = value
return Bunch.Bunch(tforms,... | [
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ejeschke/ginga | ginga/util/dp.py | masktorgb | def masktorgb(mask, color='lightgreen', alpha=1.0):
"""Convert boolean mask to RGB image object for canvas overlay.
Parameters
----------
mask : ndarray
Boolean mask to overlay. 2D image only.
color : str
Color name accepted by Ginga.
alpha : float
Opacity. Unmasked da... | python | def masktorgb(mask, color='lightgreen', alpha=1.0):
"""Convert boolean mask to RGB image object for canvas overlay.
Parameters
----------
mask : ndarray
Boolean mask to overlay. 2D image only.
color : str
Color name accepted by Ginga.
alpha : float
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ejeschke/ginga | ginga/doc/download_doc.py | _find_rtd_version | def _find_rtd_version():
"""Find closest RTD doc version."""
vstr = 'latest'
try:
import ginga
from bs4 import BeautifulSoup
except ImportError:
return vstr
# No active doc build before this release, just use latest.
if not minversion(ginga, '2.6.0'):
return vstr... | python | def _find_rtd_version():
"""Find closest RTD doc version."""
vstr = 'latest'
try:
import ginga
from bs4 import BeautifulSoup
except ImportError:
return vstr
# No active doc build before this release, just use latest.
if not minversion(ginga, '2.6.0'):
return vstr... | [
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ejeschke/ginga | ginga/doc/download_doc.py | _download_rtd_zip | def _download_rtd_zip(rtd_version=None, **kwargs):
"""
Download and extract HTML ZIP from RTD to installed doc data path.
Download is skipped if content already exists.
Parameters
----------
rtd_version : str or `None`
RTD version to download; e.g., "latest", "stable", or "v2.6.0".
... | python | def _download_rtd_zip(rtd_version=None, **kwargs):
"""
Download and extract HTML ZIP from RTD to installed doc data path.
Download is skipped if content already exists.
Parameters
----------
rtd_version : str or `None`
RTD version to download; e.g., "latest", "stable", or "v2.6.0".
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ejeschke/ginga | ginga/doc/download_doc.py | get_doc | def get_doc(logger=None, plugin=None, reporthook=None):
"""
Return URL to documentation. Attempt download if does not exist.
Parameters
----------
logger : obj or `None`
Ginga logger.
plugin : obj or `None`
Plugin object. If given, URL points to plugin doc directly.
If ... | python | def get_doc(logger=None, plugin=None, reporthook=None):
"""
Return URL to documentation. Attempt download if does not exist.
Parameters
----------
logger : obj or `None`
Ginga logger.
plugin : obj or `None`
Plugin object. If given, URL points to plugin doc directly.
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.redo | def redo(self, *args):
"""Generate listing of images that user can save."""
if not self.gui_up:
return
mod_only = self.w.modified_only.get_state()
treedict = Bunch.caselessDict()
self.treeview.clear()
self.w.status.set_text('')
channel = self.fv.get_... | python | def redo(self, *args):
"""Generate listing of images that user can save."""
if not self.gui_up:
return
mod_only = self.w.modified_only.get_state()
treedict = Bunch.caselessDict()
self.treeview.clear()
self.w.status.set_text('')
channel = self.fv.get_... | [
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.update_channels | def update_channels(self):
"""Update the GUI to reflect channels and image listing.
"""
if not self.gui_up:
return
self.logger.debug("channel configuration has changed--updating gui")
try:
channel = self.fv.get_channel(self.chname)
except KeyErro... | python | def update_channels(self):
"""Update the GUI to reflect channels and image listing.
"""
if not self.gui_up:
return
self.logger.debug("channel configuration has changed--updating gui")
try:
channel = self.fv.get_channel(self.chname)
except KeyErro... | [
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage._format_extname | def _format_extname(self, ext):
"""Pretty print given extension name and number tuple."""
if ext is None:
outs = ext
else:
outs = '{0},{1}'.format(ext[0], ext[1])
return outs | python | def _format_extname(self, ext):
"""Pretty print given extension name and number tuple."""
if ext is None:
outs = ext
else:
outs = '{0},{1}'.format(ext[0], ext[1])
return outs | [
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.browse_outdir | def browse_outdir(self):
"""Browse for output directory."""
self.dirsel.popup(
'Select directory', self.w.outdir.set_text, initialdir=self.outdir)
self.set_outdir() | python | def browse_outdir(self):
"""Browse for output directory."""
self.dirsel.popup(
'Select directory', self.w.outdir.set_text, initialdir=self.outdir)
self.set_outdir() | [
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.set_outdir | def set_outdir(self):
"""Set output directory."""
dirname = self.w.outdir.get_text()
if os.path.isdir(dirname):
self.outdir = dirname
self.logger.debug('Output directory set to {0}'.format(self.outdir))
else:
self.w.outdir.set_text(self.outdir)
... | python | def set_outdir(self):
"""Set output directory."""
dirname = self.w.outdir.get_text()
if os.path.isdir(dirname):
self.outdir = dirname
self.logger.debug('Output directory set to {0}'.format(self.outdir))
else:
self.w.outdir.set_text(self.outdir)
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.set_suffix | def set_suffix(self):
"""Set output suffix."""
self.suffix = self.w.suffix.get_text()
self.logger.debug('Output suffix set to {0}'.format(self.suffix)) | python | def set_suffix(self):
"""Set output suffix."""
self.suffix = self.w.suffix.get_text()
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage._write_history | def _write_history(self, pfx, hdu, linechar=60, indentchar=2):
"""Write change history to given HDU header.
Limit each HISTORY line to given number of characters.
Subsequent lines of the same history will be indented.
"""
channel = self.fv.get_channel(self.chname)
if chan... | python | def _write_history(self, pfx, hdu, linechar=60, indentchar=2):
"""Write change history to given HDU header.
Limit each HISTORY line to given number of characters.
Subsequent lines of the same history will be indented.
"""
channel = self.fv.get_channel(self.chname)
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage._write_header | def _write_header(self, image, hdu):
"""Write header from image object to given HDU."""
hduhdr = hdu.header
# Ginga image header object for the given extension only.
# Cannot use get_header() because that might also return PRI hdr.
ghdr = image.metadata['header']
for ke... | python | def _write_header(self, image, hdu):
"""Write header from image object to given HDU."""
hduhdr = hdu.header
# Ginga image header object for the given extension only.
# Cannot use get_header() because that might also return PRI hdr.
ghdr = image.metadata['header']
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage._write_mef | def _write_mef(self, key, extlist, outfile):
"""Write out regular multi-extension FITS data."""
channel = self.fv.get_channel(self.chname)
with fits.open(outfile, mode='update') as pf:
# Process each modified data extension
for idx in extlist:
k = '{0}[{1}... | python | def _write_mef(self, key, extlist, outfile):
"""Write out regular multi-extension FITS data."""
channel = self.fv.get_channel(self.chname)
with fits.open(outfile, mode='update') as pf:
# Process each modified data extension
for idx in extlist:
k = '{0}[{1}... | [
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.toggle_save_cb | def toggle_save_cb(self, w, res_dict):
"""Only enable saving if something is selected."""
if len(res_dict) > 0:
self.w.save.set_enabled(True)
else:
self.w.save.set_enabled(False) | python | def toggle_save_cb(self, w, res_dict):
"""Only enable saving if something is selected."""
if len(res_dict) > 0:
self.w.save.set_enabled(True)
else:
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ejeschke/ginga | ginga/rv/plugins/SaveImage.py | SaveImage.save_images | def save_images(self):
"""Save selected images.
This uses Astropy FITS package to save the outputs no matter
what user chose to load the images.
"""
res_dict = self.treeview.get_selected()
clobber = self.settings.get('clobber', False)
self.treeview.clear_selecti... | python | def save_images(self):
"""Save selected images.
This uses Astropy FITS package to save the outputs no matter
what user chose to load the images.
"""
res_dict = self.treeview.get_selected()
clobber = self.settings.get('clobber', False)
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ejeschke/ginga | ginga/web/pgw/PgHelp.py | font_info | def font_info(font_str):
"""Extract font information from a font string, such as supplied to the
'font' argument to a widget.
"""
vals = font_str.split(';')
point_size, style, weight = 8, 'normal', 'normal'
family = vals[0]
if len(vals) > 1:
style = vals[1]
if len(vals) > 2:
... | python | def font_info(font_str):
"""Extract font information from a font string, such as supplied to the
'font' argument to a widget.
"""
vals = font_str.split(';')
point_size, style, weight = 8, 'normal', 'normal'
family = vals[0]
if len(vals) > 1:
style = vals[1]
if len(vals) > 2:
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.get_points | def get_points(self):
"""Get the set of points that is used to draw the object.
Points are returned in *data* coordinates.
"""
if hasattr(self, 'points'):
points = self.crdmap.to_data(self.points)
else:
points = []
return points | python | def get_points(self):
"""Get the set of points that is used to draw the object.
Points are returned in *data* coordinates.
"""
if hasattr(self, 'points'):
points = self.crdmap.to_data(self.points)
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points = []
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.get_data_points | def get_data_points(self, points=None):
"""Points returned are in data coordinates."""
if points is None:
points = self.points
points = self.crdmap.to_data(points)
return points | python | def get_data_points(self, points=None):
"""Points returned are in data coordinates."""
if points is None:
points = self.points
points = self.crdmap.to_data(points)
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.set_data_points | def set_data_points(self, points):
"""
Input `points` must be in data coordinates, will be converted
to the coordinate space of the object and stored.
"""
self.points = np.asarray(self.crdmap.data_to(points)) | python | def set_data_points(self, points):
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.convert_mapper | def convert_mapper(self, tomap):
"""
Converts our object from using one coordinate map to another.
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"""
frommap = self.crdmap
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frommap = self.crdmap
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.point_within_radius | def point_within_radius(self, points, pt, canvas_radius,
scales=(1.0, 1.0)):
"""Points `points` and point `pt` are in data coordinates.
Return True for points within the circle defined by
a center at point `pt` and within canvas_radius.
"""
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scales=(1.0, 1.0)):
"""Points `points` and point `pt` are in data coordinates.
Return True for points within the circle defined by
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.within_radius | def within_radius(self, viewer, points, pt, canvas_radius):
"""Points `points` and point `pt` are in data coordinates.
Return True for points within the circle defined by
a center at point `pt` and within canvas_radius.
The distance between points is scaled by the canvas scale.
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"""Points `points` and point `pt` are in data coordinates.
Return True for points within the circle defined by
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.get_pt | def get_pt(self, viewer, points, pt, canvas_radius=None):
"""Takes an array of points `points` and a target point `pt`.
Returns the first index of the point that is within the
radius of the target point. If none of the points are within
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"""
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"""Takes an array of points `points` and a target point `pt`.
Returns the first index of the point that is within the
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.within_line | def within_line(self, viewer, points, p_start, p_stop, canvas_radius):
"""Points `points` and line endpoints `p_start`, `p_stop` are in
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Return True for points within the line defined by a line from
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ejeschke/ginga | ginga/canvas/CanvasObject.py | CanvasObjectBase.get_bbox | def get_bbox(self, points=None):
"""
Get bounding box of this object.
Returns
-------
(p1, p2, p3, p4): a 4-tuple of the points in data coordinates,
beginning with the lower-left and proceeding counter-clockwise.
"""
if points is None:
x1, y1,... | python | def get_bbox(self, points=None):
"""
Get bounding box of this object.
Returns
-------
(p1, p2, p3, p4): a 4-tuple of the points in data coordinates,
beginning with the lower-left and proceeding counter-clockwise.
"""
if points is None:
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ejeschke/ginga | ginga/misc/Timer.py | TimerFactory.set | def set(self, time_sec, callback_fn, *args, **kwdargs):
"""Convenience function to create and set a timer.
Equivalent to:
timer = timer_factory.timer()
timer.set_callback('expired', callback_fn, *args, **kwdargs)
timer.set(time_sec)
"""
timer = self.t... | python | def set(self, time_sec, callback_fn, *args, **kwdargs):
"""Convenience function to create and set a timer.
Equivalent to:
timer = timer_factory.timer()
timer.set_callback('expired', callback_fn, *args, **kwdargs)
timer.set(time_sec)
"""
timer = self.t... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_window_size | def set_window_size(self, width, height):
"""Report the size of the window to display the image.
**Callbacks**
Will call any callbacks registered for the ``'configure'`` event.
Callbacks should have a method signature of::
(viewer, width, height, ...)
.. note::
... | python | def set_window_size(self, width, height):
"""Report the size of the window to display the image.
**Callbacks**
Will call any callbacks registered for the ``'configure'`` event.
Callbacks should have a method signature of::
(viewer, width, height, ...)
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_renderer | def set_renderer(self, renderer):
"""Set and initialize the renderer used by this instance.
"""
self.renderer = renderer
width, height = self.get_window_size()
if width > 0 and height > 0:
renderer.resize((width, height)) | python | def set_renderer(self, renderer):
"""Set and initialize the renderer used by this instance.
"""
self.renderer = renderer
width, height = self.get_window_size()
if width > 0 and height > 0:
renderer.resize((width, height)) | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_canvas | def set_canvas(self, canvas, private_canvas=None):
"""Set the canvas object.
Parameters
----------
canvas : `~ginga.canvas.types.layer.DrawingCanvas`
Canvas object.
private_canvas : `~ginga.canvas.types.layer.DrawingCanvas` or `None`
Private canvas objec... | python | def set_canvas(self, canvas, private_canvas=None):
"""Set the canvas object.
Parameters
----------
canvas : `~ginga.canvas.types.layer.DrawingCanvas`
Canvas object.
private_canvas : `~ginga.canvas.types.layer.DrawingCanvas` or `None`
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.initialize_private_canvas | def initialize_private_canvas(self, private_canvas):
"""Initialize the private canvas used by this instance.
"""
if self.t_.get('show_pan_position', False):
self.show_pan_mark(True)
if self.t_.get('show_focus_indicator', False):
self.show_focus_indicator(True) | python | def initialize_private_canvas(self, private_canvas):
"""Initialize the private canvas used by this instance.
"""
if self.t_.get('show_pan_position', False):
self.show_pan_mark(True)
if self.t_.get('show_focus_indicator', False):
self.show_focus_indicator(True) | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_rgbmap | def set_rgbmap(self, rgbmap):
"""Set RGB map object used by this instance.
It controls how the values in the image are mapped to color.
Parameters
----------
rgbmap : `~ginga.RGBMap.RGBMapper`
RGB map.
"""
self.rgbmap = rgbmap
t_ = rgbmap.get... | python | def set_rgbmap(self, rgbmap):
"""Set RGB map object used by this instance.
It controls how the values in the image are mapped to color.
Parameters
----------
rgbmap : `~ginga.RGBMap.RGBMapper`
RGB map.
"""
self.rgbmap = rgbmap
t_ = rgbmap.get... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_image | def get_image(self):
"""Get the image currently being displayed.
Returns
-------
image : `~ginga.AstroImage.AstroImage` or `~ginga.RGBImage.RGBImage`
Image object.
"""
if self._imgobj is not None:
# quick optomization
return self._img... | python | def get_image(self):
"""Get the image currently being displayed.
Returns
-------
image : `~ginga.AstroImage.AstroImage` or `~ginga.RGBImage.RGBImage`
Image object.
"""
if self._imgobj is not None:
# quick optomization
return self._img... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_canvas_image | def get_canvas_image(self):
"""Get canvas image object.
Returns
-------
imgobj : `~ginga.canvas.types.image.NormImage`
Normalized image sitting on the canvas.
"""
if self._imgobj is not None:
return self._imgobj
try:
# See if... | python | def get_canvas_image(self):
"""Get canvas image object.
Returns
-------
imgobj : `~ginga.canvas.types.image.NormImage`
Normalized image sitting on the canvas.
"""
if self._imgobj is not None:
return self._imgobj
try:
# See if... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_image | def set_image(self, image, add_to_canvas=True):
"""Set an image to be displayed.
If there is no error, the ``'image-unset'`` and ``'image-set'``
callbacks will be invoked.
Parameters
----------
image : `~ginga.AstroImage.AstroImage` or `~ginga.RGBImage.RGBImage`
... | python | def set_image(self, image, add_to_canvas=True):
"""Set an image to be displayed.
If there is no error, the ``'image-unset'`` and ``'image-set'``
callbacks will be invoked.
Parameters
----------
image : `~ginga.AstroImage.AstroImage` or `~ginga.RGBImage.RGBImage`
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.save_profile | def save_profile(self, **params):
"""Save the given parameters into profile settings.
Parameters
----------
params : dict
Keywords and values to be saved.
"""
image = self.get_image()
if (image is None):
return
profile = image.ge... | python | def save_profile(self, **params):
"""Save the given parameters into profile settings.
Parameters
----------
params : dict
Keywords and values to be saved.
"""
image = self.get_image()
if (image is None):
return
profile = image.ge... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_data | def set_data(self, data, metadata=None):
"""Set an image to be displayed by providing raw data.
This is a convenience method for first constructing an image
with `~ginga.AstroImage.AstroImage` and then calling :meth:`set_image`.
Parameters
----------
data : ndarray
... | python | def set_data(self, data, metadata=None):
"""Set an image to be displayed by providing raw data.
This is a convenience method for first constructing an image
with `~ginga.AstroImage.AstroImage` and then calling :meth:`set_image`.
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data : ndarray
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.clear | def clear(self):
"""Clear the displayed image."""
self._imgobj = None
try:
# See if there is an image on the canvas
self.canvas.delete_object_by_tag(self._canvas_img_tag)
self.redraw()
except KeyError:
pass | python | def clear(self):
"""Clear the displayed image."""
self._imgobj = None
try:
# See if there is an image on the canvas
self.canvas.delete_object_by_tag(self._canvas_img_tag)
self.redraw()
except KeyError:
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.redraw | def redraw(self, whence=0):
"""Redraw the canvas.
Parameters
----------
whence
See :meth:`get_rgb_object`.
"""
with self._defer_lock:
whence = min(self._defer_whence, whence)
if not self.defer_redraw:
if self._hold_re... | python | def redraw(self, whence=0):
"""Redraw the canvas.
Parameters
----------
whence
See :meth:`get_rgb_object`.
"""
with self._defer_lock:
whence = min(self._defer_whence, whence)
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.canvas_changed_cb | def canvas_changed_cb(self, canvas, whence):
"""Handle callback for when canvas has changed."""
self.logger.debug("root canvas changed, whence=%d" % (whence))
# special check for whether image changed out from under us in
# a shared canvas scenario
try:
# See if ther... | python | def canvas_changed_cb(self, canvas, whence):
"""Handle callback for when canvas has changed."""
self.logger.debug("root canvas changed, whence=%d" % (whence))
# special check for whether image changed out from under us in
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.delayed_redraw | def delayed_redraw(self):
"""Handle delayed redrawing of the canvas."""
# This is the optimized redraw method
with self._defer_lock:
# pick up the lowest necessary level of redrawing
whence = self._defer_whence
self._defer_whence = self._defer_whence_reset
... | python | def delayed_redraw(self):
"""Handle delayed redrawing of the canvas."""
# This is the optimized redraw method
with self._defer_lock:
# pick up the lowest necessary level of redrawing
whence = self._defer_whence
self._defer_whence = self._defer_whence_reset
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_redraw_lag | def set_redraw_lag(self, lag_sec):
"""Set lag time for redrawing the canvas.
Parameters
----------
lag_sec : float
Number of seconds to wait.
"""
self.defer_redraw = (lag_sec > 0.0)
if self.defer_redraw:
self.defer_lagtime = lag_sec | python | def set_redraw_lag(self, lag_sec):
"""Set lag time for redrawing the canvas.
Parameters
----------
lag_sec : float
Number of seconds to wait.
"""
self.defer_redraw = (lag_sec > 0.0)
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_refresh_rate | def set_refresh_rate(self, fps):
"""Set the refresh rate for redrawing the canvas at a timed interval.
Parameters
----------
fps : float
Desired rate in frames per second.
"""
self.rf_fps = fps
self.rf_rate = 1.0 / self.rf_fps
#self.set_redra... | python | def set_refresh_rate(self, fps):
"""Set the refresh rate for redrawing the canvas at a timed interval.
Parameters
----------
fps : float
Desired rate in frames per second.
"""
self.rf_fps = fps
self.rf_rate = 1.0 / self.rf_fps
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.start_refresh | def start_refresh(self):
"""Start redrawing the canvas at the previously set timed interval.
"""
self.logger.debug("starting timed refresh interval")
self.rf_flags['done'] = False
self.rf_draw_count = 0
self.rf_timer_count = 0
self.rf_late_count = 0
self.r... | python | def start_refresh(self):
"""Start redrawing the canvas at the previously set timed interval.
"""
self.logger.debug("starting timed refresh interval")
self.rf_flags['done'] = False
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.stop_refresh | def stop_refresh(self):
"""Stop redrawing the canvas at the previously set timed interval.
"""
self.logger.debug("stopping timed refresh")
self.rf_flags['done'] = True
self.rf_timer.clear() | python | def stop_refresh(self):
"""Stop redrawing the canvas at the previously set timed interval.
"""
self.logger.debug("stopping timed refresh")
self.rf_flags['done'] = True
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_refresh_stats | def get_refresh_stats(self):
"""Return the measured statistics for timed refresh intervals.
Returns
-------
stats : float
The measured rate of actual back end updates in frames per second.
"""
if self.rf_draw_count == 0:
fps = 0.0
else:
... | python | def get_refresh_stats(self):
"""Return the measured statistics for timed refresh intervals.
Returns
-------
stats : float
The measured rate of actual back end updates in frames per second.
"""
if self.rf_draw_count == 0:
fps = 0.0
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.refresh_timer_cb | def refresh_timer_cb(self, timer, flags):
"""Refresh timer callback.
This callback will normally only be called internally.
Parameters
----------
timer : a Ginga GUI timer
A GUI-based Ginga timer
flags : dict-like
A set of flags controlling the t... | python | def refresh_timer_cb(self, timer, flags):
"""Refresh timer callback.
This callback will normally only be called internally.
Parameters
----------
timer : a Ginga GUI timer
A GUI-based Ginga timer
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.redraw_now | def redraw_now(self, whence=0):
"""Redraw the displayed image.
Parameters
----------
whence
See :meth:`get_rgb_object`.
"""
try:
time_start = time.time()
self.redraw_data(whence=whence)
# finally update the window drawabl... | python | def redraw_now(self, whence=0):
"""Redraw the displayed image.
Parameters
----------
whence
See :meth:`get_rgb_object`.
"""
try:
time_start = time.time()
self.redraw_data(whence=whence)
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.redraw_data | def redraw_data(self, whence=0):
"""Render image from RGB map and redraw private canvas.
.. note::
Do not call this method unless you are implementing a subclass.
Parameters
----------
whence
See :meth:`get_rgb_object`.
"""
if not self.... | python | def redraw_data(self, whence=0):
"""Render image from RGB map and redraw private canvas.
.. note::
Do not call this method unless you are implementing a subclass.
Parameters
----------
whence
See :meth:`get_rgb_object`.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.check_cursor_location | def check_cursor_location(self):
"""Check whether the data location of the last known position
of the cursor has changed. If so, issue a callback.
"""
# Check whether cursor data position has changed relative
# to previous value
data_x, data_y = self.get_data_xy(self.las... | python | def check_cursor_location(self):
"""Check whether the data location of the last known position
of the cursor has changed. If so, issue a callback.
"""
# Check whether cursor data position has changed relative
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.getwin_array | def getwin_array(self, order='RGB', alpha=1.0, dtype=None):
"""Get Numpy data array for display window.
Parameters
----------
order : str
The desired order of RGB color layers.
alpha : float
Opacity.
dtype : numpy dtype
Numpy data ty... | python | def getwin_array(self, order='RGB', alpha=1.0, dtype=None):
"""Get Numpy data array for display window.
Parameters
----------
order : str
The desired order of RGB color layers.
alpha : float
Opacity.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_datarect | def get_datarect(self):
"""Get the approximate bounding box of the displayed image.
Returns
-------
rect : tuple
Bounding box in data coordinates in the form of
``(x1, y1, x2, y2)``.
"""
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"""Get the approximate bounding box of the displayed image.
Returns
-------
rect : tuple
Bounding box in data coordinates in the form of
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_limits | def get_limits(self, coord='data'):
"""Get the bounding box of the viewer extents.
Returns
-------
limits : tuple
Bounding box in coordinates of type `coord` in the form of
``(ll_pt, ur_pt)``.
"""
limits = self.t_['limits']
if limits ... | python | def get_limits(self, coord='data'):
"""Get the bounding box of the viewer extents.
Returns
-------
limits : tuple
Bounding box in coordinates of type `coord` in the form of
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_limits | def set_limits(self, limits, coord='data'):
"""Set the bounding box of the viewer extents.
Parameters
----------
limits : tuple or None
A tuple setting the extents of the viewer in the form of
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"""
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... | python | def set_limits(self, limits, coord='data'):
"""Set the bounding box of the viewer extents.
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limits : tuple or None
A tuple setting the extents of the viewer in the form of
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_rgb_object | def get_rgb_object(self, whence=0):
"""Create and return RGB slices representing the data
that should be rendered at the current zoom level and pan settings.
Parameters
----------
whence : {0, 1, 2, 3}
Optimization flag that reduces the time to create
the... | python | def get_rgb_object(self, whence=0):
"""Create and return RGB slices representing the data
that should be rendered at the current zoom level and pan settings.
Parameters
----------
whence : {0, 1, 2, 3}
Optimization flag that reduces the time to create
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase._reset_bbox | def _reset_bbox(self):
"""This function should only be called internally. It resets
the viewers bounding box based on changes to pan or scale.
"""
scale_x, scale_y = self.get_scale_xy()
pan_x, pan_y = self.get_pan(coord='data')[:2]
win_wd, win_ht = self.get_window_size()... | python | def _reset_bbox(self):
"""This function should only be called internally. It resets
the viewers bounding box based on changes to pan or scale.
"""
scale_x, scale_y = self.get_scale_xy()
pan_x, pan_y = self.get_pan(coord='data')[:2]
win_wd, win_ht = self.get_window_size()... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.overlay_images | def overlay_images(self, canvas, data, whence=0.0):
"""Overlay data from any canvas image objects.
Parameters
----------
canvas : `~ginga.canvas.types.layer.DrawingCanvas`
Canvas containing possible images to overlay.
data : ndarray
Output array on which... | python | def overlay_images(self, canvas, data, whence=0.0):
"""Overlay data from any canvas image objects.
Parameters
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canvas : `~ginga.canvas.types.layer.DrawingCanvas`
Canvas containing possible images to overlay.
data : ndarray
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.convert_via_profile | def convert_via_profile(self, data_np, order, inprof_name, outprof_name):
"""Convert the given RGB data from the working ICC profile
to the output profile in-place.
Parameters
----------
data_np : ndarray
RGB image data to be displayed.
order : str
... | python | def convert_via_profile(self, data_np, order, inprof_name, outprof_name):
"""Convert the given RGB data from the working ICC profile
to the output profile in-place.
Parameters
----------
data_np : ndarray
RGB image data to be displayed.
order : str
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_data_xy | def get_data_xy(self, win_x, win_y, center=None):
"""Get the closest coordinates in the data array to those
reported on the window.
Parameters
----------
win_x, win_y : float or ndarray
Window coordinates.
center : bool
If `True`, then the coordi... | python | def get_data_xy(self, win_x, win_y, center=None):
"""Get the closest coordinates in the data array to those
reported on the window.
Parameters
----------
win_x, win_y : float or ndarray
Window coordinates.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.offset_to_window | def offset_to_window(self, off_x, off_y):
"""Convert data offset to window coordinates.
Parameters
----------
off_x, off_y : float or ndarray
Data offsets.
Returns
-------
coord : tuple
Offset in window coordinates in the form of ``(x, y)... | python | def offset_to_window(self, off_x, off_y):
"""Convert data offset to window coordinates.
Parameters
----------
off_x, off_y : float or ndarray
Data offsets.
Returns
-------
coord : tuple
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_pan_rect | def get_pan_rect(self):
"""Get the coordinates in the actual data corresponding to the
area shown in the display for the current zoom level and pan.
Returns
-------
points : list
Coordinates in the form of
``[(x0, y0), (x1, y1), (x2, y2), (x3, y3)]``
... | python | def get_pan_rect(self):
"""Get the coordinates in the actual data corresponding to the
area shown in the display for the current zoom level and pan.
Returns
-------
points : list
Coordinates in the form of
``[(x0, y0), (x1, y1), (x2, y2), (x3, y3)]``
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_data | def get_data(self, data_x, data_y):
"""Get the data value at the given position.
Indices are zero-based, as in Numpy.
Parameters
----------
data_x, data_y : int
Data indices for X and Y, respectively.
Returns
-------
value
Data sl... | python | def get_data(self, data_x, data_y):
"""Get the data value at the given position.
Indices are zero-based, as in Numpy.
Parameters
----------
data_x, data_y : int
Data indices for X and Y, respectively.
Returns
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value
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_pixel_distance | def get_pixel_distance(self, x1, y1, x2, y2):
"""Calculate distance between the given pixel positions.
Parameters
----------
x1, y1, x2, y2 : number
Pixel coordinates.
Returns
-------
dist : float
Rounded distance.
"""
dx... | python | def get_pixel_distance(self, x1, y1, x2, y2):
"""Calculate distance between the given pixel positions.
Parameters
----------
x1, y1, x2, y2 : number
Pixel coordinates.
Returns
-------
dist : float
Rounded distance.
"""
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase._sanity_check_scale | def _sanity_check_scale(self, scale_x, scale_y):
"""Do a sanity check on the proposed scale vs. window size.
Raises an exception if there will be a problem.
"""
win_wd, win_ht = self.get_window_size()
if (win_wd <= 0) or (win_ht <= 0):
raise ImageViewError("window siz... | python | def _sanity_check_scale(self, scale_x, scale_y):
"""Do a sanity check on the proposed scale vs. window size.
Raises an exception if there will be a problem.
"""
win_wd, win_ht = self.get_window_size()
if (win_wd <= 0) or (win_ht <= 0):
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.scale_cb | def scale_cb(self, setting, value):
"""Handle callback related to image scaling."""
zoomlevel = self.zoom.calc_level(value)
self.t_.set(zoomlevel=zoomlevel)
self.redraw(whence=0) | python | def scale_cb(self, setting, value):
"""Handle callback related to image scaling."""
zoomlevel = self.zoom.calc_level(value)
self.t_.set(zoomlevel=zoomlevel)
self.redraw(whence=0) | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_scale_base_xy | def set_scale_base_xy(self, scale_x_base, scale_y_base):
"""Set stretch factors.
Parameters
----------
scale_x_base, scale_y_base : float
Stretch factors for X and Y, respectively.
"""
self.t_.set(scale_x_base=scale_x_base, scale_y_base=scale_y_base) | python | def set_scale_base_xy(self, scale_x_base, scale_y_base):
"""Set stretch factors.
Parameters
----------
scale_x_base, scale_y_base : float
Stretch factors for X and Y, respectively.
"""
self.t_.set(scale_x_base=scale_x_base, scale_y_base=scale_y_base) | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_scale_text | def get_scale_text(self):
"""Report current scaling in human-readable format.
Returns
-------
text : str
``'<num> x'`` if enlarged, or ``'1/<num> x'`` if shrunken.
"""
scalefactor = self.get_scale_max()
if scalefactor >= 1.0:
text = '%.2f... | python | def get_scale_text(self):
"""Report current scaling in human-readable format.
Returns
-------
text : str
``'<num> x'`` if enlarged, or ``'1/<num> x'`` if shrunken.
"""
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_zoom_algorithm | def set_zoom_algorithm(self, name):
"""Set zoom algorithm.
Parameters
----------
name : str
Name of a zoom algorithm to use.
"""
name = name.lower()
alg_names = list(zoom.get_zoom_alg_names())
if name not in alg_names:
raise Image... | python | def set_zoom_algorithm(self, name):
"""Set zoom algorithm.
Parameters
----------
name : str
Name of a zoom algorithm to use.
"""
name = name.lower()
alg_names = list(zoom.get_zoom_alg_names())
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.zoomsetting_change_cb | def zoomsetting_change_cb(self, setting, value):
"""Handle callback related to changes in zoom."""
alg_name = self.t_['zoom_algorithm']
self.zoom = zoom.get_zoom_alg(alg_name)(self)
self.zoom_to(self.get_zoom()) | python | def zoomsetting_change_cb(self, setting, value):
"""Handle callback related to changes in zoom."""
alg_name = self.t_['zoom_algorithm']
self.zoom = zoom.get_zoom_alg(alg_name)(self)
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.interpolation_change_cb | def interpolation_change_cb(self, setting, value):
"""Handle callback related to changes in interpolation."""
canvas_img = self.get_canvas_image()
canvas_img.interpolation = value
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"""Handle callback related to changes in interpolation."""
canvas_img = self.get_canvas_image()
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_scale_limits | def set_scale_limits(self, scale_min, scale_max):
"""Set scale limits.
Parameters
----------
scale_min, scale_max : float
Minimum and maximum scale limits, respectively.
"""
# TODO: force scale to within limits if already outside?
self.t_.set(scale_m... | python | def set_scale_limits(self, scale_min, scale_max):
"""Set scale limits.
Parameters
----------
scale_min, scale_max : float
Minimum and maximum scale limits, respectively.
"""
# TODO: force scale to within limits if already outside?
self.t_.set(scale_m... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.enable_autozoom | def enable_autozoom(self, option):
"""Set ``autozoom`` behavior.
Parameters
----------
option : {'on', 'override', 'once', 'off'}
Option for zoom behavior. A list of acceptable options can
also be obtained by :meth:`get_autozoom_options`.
Raises
... | python | def enable_autozoom(self, option):
"""Set ``autozoom`` behavior.
Parameters
----------
option : {'on', 'override', 'once', 'off'}
Option for zoom behavior. A list of acceptable options can
also be obtained by :meth:`get_autozoom_options`.
Raises
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_pan | def set_pan(self, pan_x, pan_y, coord='data', no_reset=False):
"""Set pan position.
Parameters
----------
pan_x, pan_y : float
Pan positions in X and Y.
coord : {'data', 'wcs'}
Indicates whether the given pan positions are in data or WCS space.
... | python | def set_pan(self, pan_x, pan_y, coord='data', no_reset=False):
"""Set pan position.
Parameters
----------
pan_x, pan_y : float
Pan positions in X and Y.
coord : {'data', 'wcs'}
Indicates whether the given pan positions are in data or WCS space.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.pan_cb | def pan_cb(self, setting, value):
"""Handle callback related to changes in pan."""
pan_x, pan_y = value[:2]
self.logger.debug("pan set to %.2f,%.2f" % (pan_x, pan_y))
self.redraw(whence=0) | python | def pan_cb(self, setting, value):
"""Handle callback related to changes in pan."""
pan_x, pan_y = value[:2]
self.logger.debug("pan set to %.2f,%.2f" % (pan_x, pan_y))
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_pan | def get_pan(self, coord='data'):
"""Get pan positions.
Parameters
----------
coord : {'data', 'wcs'}
Indicates whether the pan positions are returned in
data or WCS space.
Returns
-------
positions : tuple
X and Y positions, i... | python | def get_pan(self, coord='data'):
"""Get pan positions.
Parameters
----------
coord : {'data', 'wcs'}
Indicates whether the pan positions are returned in
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-------
positions : tuple
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.center_image | def center_image(self, no_reset=True):
"""Pan to the center of the image.
Parameters
----------
no_reset : bool
See :meth:`set_pan`.
"""
try:
xy_mn, xy_mx = self.get_limits()
data_x = float(xy_mn[0] + xy_mx[0]) / 2.0
data_... | python | def center_image(self, no_reset=True):
"""Pan to the center of the image.
Parameters
----------
no_reset : bool
See :meth:`set_pan`.
"""
try:
xy_mn, xy_mx = self.get_limits()
data_x = float(xy_mn[0] + xy_mx[0]) / 2.0
data_... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.enable_autocenter | def enable_autocenter(self, option):
"""Set ``autocenter`` behavior.
Parameters
----------
option : {'on', 'override', 'once', 'off'}
Option for auto-center behavior. A list of acceptable options can
also be obtained by :meth:`get_autocenter_options`.
Ra... | python | def enable_autocenter(self, option):
"""Set ``autocenter`` behavior.
Parameters
----------
option : {'on', 'override', 'once', 'off'}
Option for auto-center behavior. A list of acceptable options can
also be obtained by :meth:`get_autocenter_options`.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.cut_levels | def cut_levels(self, loval, hival, no_reset=False):
"""Apply cut levels on the image view.
Parameters
----------
loval, hival : float
Low and high values of the cut levels, respectively.
no_reset : bool
Do not reset ``autocuts`` setting.
"""
... | python | def cut_levels(self, loval, hival, no_reset=False):
"""Apply cut levels on the image view.
Parameters
----------
loval, hival : float
Low and high values of the cut levels, respectively.
no_reset : bool
Do not reset ``autocuts`` setting.
"""
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.auto_levels | def auto_levels(self, autocuts=None):
"""Apply auto-cut levels on the image view.
Parameters
----------
autocuts : subclass of `~ginga.AutoCuts.AutoCutsBase` or `None`
An object that implements the desired auto-cut algorithm.
If not given, use algorithm from pref... | python | def auto_levels(self, autocuts=None):
"""Apply auto-cut levels on the image view.
Parameters
----------
autocuts : subclass of `~ginga.AutoCuts.AutoCutsBase` or `None`
An object that implements the desired auto-cut algorithm.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.auto_levels_cb | def auto_levels_cb(self, setting, value):
"""Handle callback related to changes in auto-cut levels."""
# Did we change the method?
method = self.t_['autocut_method']
params = self.t_.get('autocut_params', [])
params = dict(params)
if method != str(self.autocuts):
... | python | def auto_levels_cb(self, setting, value):
"""Handle callback related to changes in auto-cut levels."""
# Did we change the method?
method = self.t_['autocut_method']
params = self.t_.get('autocut_params', [])
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if method != str(self.autocuts):
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.enable_autocuts | def enable_autocuts(self, option):
"""Set ``autocuts`` behavior.
Parameters
----------
option : {'on', 'override', 'once', 'off'}
Option for auto-cut behavior. A list of acceptable options can
also be obtained by :meth:`get_autocuts_options`.
Raises
... | python | def enable_autocuts(self, option):
"""Set ``autocuts`` behavior.
Parameters
----------
option : {'on', 'override', 'once', 'off'}
Option for auto-cut behavior. A list of acceptable options can
also be obtained by :meth:`get_autocuts_options`.
Raises
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_autocut_params | def set_autocut_params(self, method, **params):
"""Set auto-cut parameters.
Parameters
----------
method : str
Auto-cut algorithm. A list of acceptable options can
be obtained by :meth:`get_autocut_methods`.
params : dict
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"""Set auto-cut parameters.
Parameters
----------
method : str
Auto-cut algorithm. A list of acceptable options can
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.transform | def transform(self, flip_x, flip_y, swap_xy):
"""Transform view of the image.
.. note::
Transforming the image is generally faster than rotating,
if rotating in 90 degree increments. Also see :meth:`rotate`.
Parameters
----------
flipx, flipy : bool
... | python | def transform(self, flip_x, flip_y, swap_xy):
"""Transform view of the image.
.. note::
Transforming the image is generally faster than rotating,
if rotating in 90 degree increments. Also see :meth:`rotate`.
Parameters
----------
flipx, flipy : bool
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.transform_cb | def transform_cb(self, setting, value):
"""Handle callback related to changes in transformations."""
self.make_callback('transform')
# whence=0 because need to calculate new extents for proper
# cutout for rotation (TODO: always make extents consider
# room for rotation)
... | python | def transform_cb(self, setting, value):
"""Handle callback related to changes in transformations."""
self.make_callback('transform')
# whence=0 because need to calculate new extents for proper
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.copy_attributes | def copy_attributes(self, dst_fi, attrlist, share=False):
"""Copy interesting attributes of our configuration to another
image view.
Parameters
----------
dst_fi : subclass of `ImageViewBase`
Another instance of image view.
attrlist : list
A list... | python | def copy_attributes(self, dst_fi, attrlist, share=False):
"""Copy interesting attributes of our configuration to another
image view.
Parameters
----------
dst_fi : subclass of `ImageViewBase`
Another instance of image view.
attrlist : list
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.auto_orient | def auto_orient(self):
"""Set the orientation for the image to a reasonable default."""
image = self.get_image()
if image is None:
return
invert_y = not isinstance(image, AstroImage.AstroImage)
# Check for various things to set based on metadata
header = imag... | python | def auto_orient(self):
"""Set the orientation for the image to a reasonable default."""
image = self.get_image()
if image is None:
return
invert_y = not isinstance(image, AstroImage.AstroImage)
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_image_as_buffer | def get_image_as_buffer(self, output=None):
"""Get the current image shown in the viewer, with any overlaid
graphics, in a IO buffer with channels as needed and ordered
by the back end widget.
This can be overridden by subclasses.
Parameters
----------
output : ... | python | def get_image_as_buffer(self, output=None):
"""Get the current image shown in the viewer, with any overlaid
graphics, in a IO buffer with channels as needed and ordered
by the back end widget.
This can be overridden by subclasses.
Parameters
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output : ... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.get_rgb_image_as_bytes | def get_rgb_image_as_bytes(self, format='png', quality=90):
"""Get the current image shown in the viewer, with any overlaid
graphics, in the form of a buffer in the form of bytes.
Parameters
----------
format : str
See :meth:`get_rgb_image_as_buffer`.
qualit... | python | def get_rgb_image_as_bytes(self, format='png', quality=90):
"""Get the current image shown in the viewer, with any overlaid
graphics, in the form of a buffer in the form of bytes.
Parameters
----------
format : str
See :meth:`get_rgb_image_as_buffer`.
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.save_rgb_image_as_file | def save_rgb_image_as_file(self, filepath, format='png', quality=90):
"""Save the current image shown in the viewer, with any overlaid
graphics, in a file with the specified format and quality.
This can be overridden by subclasses.
Parameters
----------
filepath : str
... | python | def save_rgb_image_as_file(self, filepath, format='png', quality=90):
"""Save the current image shown in the viewer, with any overlaid
graphics, in a file with the specified format and quality.
This can be overridden by subclasses.
Parameters
----------
filepath : str
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filepath : str
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase.set_onscreen_message | def set_onscreen_message(self, text, redraw=True):
"""Called by a subclass to update the onscreen message.
Parameters
----------
text : str
The text to show in the display.
"""
width, height = self.get_window_size()
font = self.t_.get('onscreen_font... | python | def set_onscreen_message(self, text, redraw=True):
"""Called by a subclass to update the onscreen message.
Parameters
----------
text : str
The text to show in the display.
"""
width, height = self.get_window_size()
font = self.t_.get('onscreen_font... | [
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ejeschke/ginga | ginga/ImageView.py | ImageViewBase._calc_font_size | def _calc_font_size(self, win_wd):
"""Heuristic to calculate an appropriate font size based on the
width of the viewer window.
Parameters
----------
win_wd : int
The width of the viewer window.
Returns
-------
font_size : int
Appr... | python | def _calc_font_size(self, win_wd):
"""Heuristic to calculate an appropriate font size based on the
width of the viewer window.
Parameters
----------
win_wd : int
The width of the viewer window.
Returns
-------
font_size : int
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ejeschke/ginga | ginga/gtkw/GtkHelp.py | FileSelection.popup | def popup(self, title, callfn, initialdir=None, filename=None):
"""Let user select and load file."""
self.cb = callfn
self.filew.set_title(title)
if initialdir:
self.filew.set_current_folder(initialdir)
if filename:
#self.filew.set_filename(filename)
... | python | def popup(self, title, callfn, initialdir=None, filename=None):
"""Let user select and load file."""
self.cb = callfn
self.filew.set_title(title)
if initialdir:
self.filew.set_current_folder(initialdir)
if filename:
#self.filew.set_filename(filename)
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ejeschke/ginga | ginga/util/loader.py | get_fileinfo | def get_fileinfo(self, filespec, dldir=None):
"""Break down a file specification into its components.
Parameters
----------
filespec : str
The path of the file to load (can be a URL).
dldir
Returns
-------
res : `~ginga.misc.Bunch.Bunch`
"""
if dldir is None:
... | python | def get_fileinfo(self, filespec, dldir=None):
"""Break down a file specification into its components.
Parameters
----------
filespec : str
The path of the file to load (can be a URL).
dldir
Returns
-------
res : `~ginga.misc.Bunch.Bunch`
"""
if dldir is None:
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ejeschke/ginga | ginga/rv/plugins/Zoom.py | Zoom.zoomset_cb | def zoomset_cb(self, setting, zoomlevel, fitsimage):
"""This method is called when a main FITS widget changes zoom level.
"""
if not self.gui_up:
return
fac_x, fac_y = fitsimage.get_scale_base_xy()
fac_x_me, fac_y_me = self.zoomimage.get_scale_base_xy()
if (fa... | python | def zoomset_cb(self, setting, zoomlevel, fitsimage):
"""This method is called when a main FITS widget changes zoom level.
"""
if not self.gui_up:
return
fac_x, fac_y = fitsimage.get_scale_base_xy()
fac_x_me, fac_y_me = self.zoomimage.get_scale_base_xy()
if (fa... | [
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ejeschke/ginga | ginga/rv/plugins/Zoom.py | Zoom.set_amount_cb | def set_amount_cb(self, widget, val):
"""This method is called when 'Zoom Amount' control is adjusted.
"""
self.zoom_amount = val
zoomlevel = self.fitsimage_focus.get_zoom()
self._zoomset(self.fitsimage_focus, zoomlevel) | python | def set_amount_cb(self, widget, val):
"""This method is called when 'Zoom Amount' control is adjusted.
"""
self.zoom_amount = val
zoomlevel = self.fitsimage_focus.get_zoom()
self._zoomset(self.fitsimage_focus, zoomlevel) | [
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ejeschke/ginga | experimental/remote_image/plugin/RemoteImage.py | RemoteImage._slice | def _slice(self, view):
"""
Send view to remote server and do slicing there.
"""
if self._data is not None:
return self._data[view]
return self._proxy.get_view(self.id, view) | python | def _slice(self, view):
"""
Send view to remote server and do slicing there.
"""
if self._data is not None:
return self._data[view]
return self._proxy.get_view(self.id, view) | [
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