I would like my custom operator to have 2 behaviours :
- Case 1: Viewport is in perspective mode, do function 1.
- Case 2: Viewport is in orthogonal mode, do function 2.
How can I get that information with the Python API?
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1 Answer
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9
Yes, you can check is_perspective.
You can get the perspective of the current context (provided the current context is a 3D view) with bpy.context.space_data.region_3d.is_perspective.
For example, running this in the text editor will print Perspective or Ortho to the terminal for each 3D view.
import bpy
for area in bpy.context.screen.areas:
if area.type == 'VIEW_3D':
for space in area.spaces:
if space.type == 'VIEW_3D':
if space.region_3d.is_perspective:
print("Perspective")
else:
print("Ortho")
answered Mar 7, 2014 at 8:44
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$\begingroup$ The link speaks about a type. I can't see how to get that info in context. I mean a full path like bpy.context. ... .RegionView3D.is_perspective $\endgroup$– mataliMar 7, 2014 at 8:49
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$\begingroup$ @matali
typeis only used for documentation. Trybpy.context.region_data.is_perspective$\endgroup$– gandalf3 ♦Mar 7, 2014 at 8:52 -
$\begingroup$ gives me eror : object has no item "is_perspective" $\endgroup$– mataliMar 7, 2014 at 8:55
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$\begingroup$ @matali Oops, I meant
space_data. Will update answer. $\endgroup$– gandalf3 ♦Mar 7, 2014 at 9:11 -
$\begingroup$ problem is I need the state of the view where the operator is called, not for every view. So I really need a full path that gives me the context view perspective/ortho state. $\endgroup$– mataliMar 7, 2014 at 13:15