View3D operations problem

Question

Currently i am trying to change the viewport of the 3D View window using a python script. I am using this function

bpy.ops.view3d.viewnumpad(type='TOP');

But it always get this error

RuntimeError: Operator bpy.ops.view3d.viewnumpad.poll() failed, context is incorrect

The same error is gotten when I use this function

bpy.ops.view3d.view_persportho();

Waht is the problem?

@Chebhou, I have already read this answer but it does not solved my question — BetterEnglish, Jul 24 '15 at 18:11
can you edit your post with the new code to see the new problem — Chebhou, Jul 24 '15 at 18:13
ok here is the exact answer http://blender.stackexchange.com/a/30645/5113 — Chebhou, Jul 24 '15 at 18:17
@Chebhou, I have already used this code to achieve the ORTHO view but how can I achieve the TOP view? — BetterEnglish, Jul 24 '15 at 18:23
@Chebhou, I need the code that do the same operation when click on 7 — BetterEnglish, Jul 24 '15 at 18:25
did you write type='TOP' and it didn't work, what error you're getting ? — Chebhou, Jul 24 '15 at 18:27
@Chebhou, yes because the enum contains just CAMERA, ORTHO, PERSP. TypeError: bpy_struct: item.attr = val: enum "TOP" not found in ('PERSP', 'ORTHO', 'CAMERA') — BetterEnglish, Jul 24 '15 at 18:28
don't use the second part use only the first (from the answer ) — Chebhou, Jul 24 '15 at 18:29

pink vertex · Answer 1 · 2015-07-24T20:00:38.597

3

import bpy

for area in bpy.context.screen.areas:
    if area.type == "VIEW_3D":
        break

for region in area.regions:
    if region.type == "WINDOW":
        break

space = area.spaces[0]

context = bpy.context.copy()
context['area'] = area
context['region'] = region
context['space_data'] = space

bpy.ops.view3d.viewnumpad(context, 'EXEC_DEFAULT', type='TOP')
bpy.ops.view3d.view_persportho(context, 'EXEC_DEFAULT')

or without operators:

from mathutils import Quaternion

r3d = space.region_3d
r3d.view_perspective = "ORTHO"
#default - look down z-axis
r3d.view_rotation = Quaternion((1.0, 0.0, 0.0, 0.0))

edited Jul 24 '15 at 20:00

answered Jul 24 '15 at 19:39

pink vertex

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This is helpful since this works in 2.80 beta now compared to missing the viewnumpad completely now. – Craig D Jones Dec 13 '18 at 20:06

View3D operations problem

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