Problem for select/deselect multiple vertices with API Python #42467

New Issue

Jefferson Rausseo · 2014-11-02T06:37:49+01:00

Jefferson Rausseo commented

2014-11-02 06:37:49 +01:00

System Information
Ubuntu 14.04
Nvidia 8600 gt

Blender Version
Broken: 2.72 88cc1a7

Short description of error
Does not work to select and deselect multiple vertices via a script

Exact steps for others to reproduce the error

Enter in mode edit, no vertices selected.
Enter in mode object. Run "script A1" and later enter in mode edit. There is a selected vertex.
Enter in mode object. Run "script A2" and later enter in mode edit. There is not a selected vertex. All right!.
Enter in mode object. Run "script B1" and later enter in mode edit. There is two selected vertex.
Enter in mode object. Run "script B2" and later enter in mode edit. There is two selected vertex. Not right!!!

**System Information** Ubuntu 14.04 Nvidia 8600 gt **Blender Version** Broken: 2.72 88cc1a7 **Short description of error** Does not work to select and deselect multiple vertices via a script **Exact steps for others to reproduce the error** 1. Enter in mode edit, no vertices selected. 2. Enter in mode object. Run "script A1" and later enter in mode edit. There is a selected vertex. 3. Enter in mode object. Run "script A2" and later enter in mode edit. There is not a selected vertex. All right!. 4. Enter in mode object. Run "script B1" and later enter in mode edit. There is two selected vertex. 5. Enter in mode object. Run "script B2" and later enter in mode edit. There is two selected vertex. Not right!!!

Jefferson Rausseo commented

2014-11-02 06:37:49 +01:00

Changed status to: 'Open'

Jefferson Rausseo commented

2014-11-02 06:37:49 +01:00

Added subscriber: @jefrau

Jefferson Rausseo commented

2014-11-02 06:40:13 +01:00

error.blend

[error.blend](https://archive.blender.org/developer/F121185/error.blend)

Bastien Montagne commented

2014-11-02 09:01:55 +01:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-11-02 09:01:55 +01:00

Bastien Montagne self-assigned this 2014-11-02 09:01:55 +01:00

Bastien Montagne commented

2014-11-02 09:01:55 +01:00

Thanks for the report, but there is no bug here. Setting selection in Object mode is not a best idea, because it only set given element's select status. However, selecting two vertices can have the side effect of selecting an edge (which happens in your case), but those relations are only handled in Edit mode.

So what happens for you is that you select two vertices. When you switch to Edit mode, their common edge is selected as well. Then back in Object mode you deselect the vertices, but not the edge, so once you go in Edit mode again, those vertices get automatically re-selected.

Thanks for the report, but there is no bug here. **Setting** selection in Object mode is not a best idea, because it only set given element's select status. However, selecting two vertices can have the side effect of selecting an edge (which happens in your case), but those relations are only handled in Edit mode. So what happens for you is that you select two vertices. When you switch to Edit mode, their common edge is selected as well. Then back in Object mode you deselect the vertices, but not the edge, so once you go in Edit mode again, those vertices get automatically re-selected.

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Problem for select/deselect multiple vertices with API Python #42467