bpy.types.View2D.view_to_region returns wrong values #62132

New Issue

evgenvasilev · 2019-03-02T17:44:00+01:00

evgenvasilev commented

2019-03-02 17:44:00 +01:00

System Information
Operating system: ubuntu 18.04

Blender Version
Broken: blender-2.80-9e4d561a8b7d-linux-glibc224-x86_64

Short description of error
If image is moved or scaled in image editor and it's point is outside image editor, view_to_region will return wrong values for that point. In my case (12000, 12000), should be negative values or values bigger than image editor width or height to allow (for example) drawing rectangle along image border with gpu python module.

Exact steps for others to reproduce the error
test2.blend

Open test2.blend
Paste this to console:

  bpy.data.workspaces['Layout'].screens[0].areas[0].regions[4].view2d.view_to_region(0, 0)

Notice that values are wrong.
Move image to have bottom left corner inside image editor, repeat 2, notice that values are right.

**System Information** Operating system: ubuntu 18.04 **Blender Version** Broken: blender-2.80-9e4d561a8b7d-linux-glibc224-x86_64 **Short description of error** If image is moved or scaled in image editor and it's point is outside image editor, view_to_region will return wrong values for that point. In my case (12000, 12000), should be negative values or values bigger than image editor width or height to allow (for example) drawing rectangle along image border with gpu python module. **Exact steps for others to reproduce the error** [test2.blend](https://archive.blender.org/developer/F6746746/test2.blend) 1. Open test2.blend 2. Paste this to console: ``` bpy.data.workspaces['Layout'].screens[0].areas[0].regions[4].view2d.view_to_region(0, 0) ``` 3. Notice that values are wrong. 4. Move image to have bottom left corner inside image editor, repeat 2, notice that values are right.

evgenvasilev commented

2019-03-02 17:44:00 +01:00

Added subscriber: @nthyjrn

Joshua Leung commented

2019-03-04 02:52:04 +01:00

Added subscriber: @JoshuaLeung

Joshua Leung commented

2019-03-04 02:52:04 +01:00

Changed status from 'Open' to: 'Archived'

Joshua Leung closed this issue

2019-03-04 02:52:04 +01:00

Joshua Leung self-assigned this 2019-03-04 02:52:04 +01:00

Joshua Leung commented

2019-03-04 02:52:04 +01:00

What you're seeing here is actually an error code to indicate coordinates that are out of bounds - i.e. #define V2D_IS_CLIPPED 12000 (see UI_view2d.h:37)

IIRC, the Image Editor's view2d is configured to strictly show things only within 0.0 - 1.0 and the x, y axes.

What you're seeing here is actually an error code to indicate coordinates that are out of bounds - i.e. `#define V2D_IS_CLIPPED 12000` (see `UI_view2d.h:37`) IIRC, the Image Editor's view2d is configured to strictly show things only within 0.0 - 1.0 and the x, y axes.

evgenvasilev commented

2019-03-07 12:35:19 +01:00

How should api users draw rectangle along image border with gpu python module? (it works only if image was not moved or scaled too much)

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bpy.types.View2D.view_to_region returns wrong values #62132