Adjust Last Operation will change selection after running operator from console #77004

New Issue

Eugene Du · 2020-05-23T22:02:00+02:00

Eugene Du commented

2020-05-23 22:02:00 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1650 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.75

Blender Version
Broken: version: 2.83 (sub 17), branch: master, commit date: 2020-05-22 19:52, hash: e8dd8c2829, also 2.82a

Short description of error
after execute selection operator in Python Console, then use any tool that have "Adjust Last Operation" panel and tweak parameter in it - the selection dropped
Example_1.mp4

Exact steps for others to reproduce the error
#77004.blend

Open file
Run command in console (bpy.ops.mesh.loop_multi_select(ring=False))
In 3D viewport move selection
In adjust last operation panel modify some property

Selection will change and result will be incorrect.

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1650 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.75 **Blender Version** Broken: version: 2.83 (sub 17), branch: master, commit date: 2020-05-22 19:52, hash: `e8dd8c2829`, also 2.82a **Short description of error** after execute selection operator in Python Console, then use any tool that have "Adjust Last Operation" panel and tweak parameter in it - the selection dropped [Example_1.mp4](https://archive.blender.org/developer/F8549781/Example_1.mp4) **Exact steps for others to reproduce the error** [#77004.blend](https://archive.blender.org/developer/F8552955/T77004.blend) - Open file - Run command in console (`bpy.ops.mesh.loop_multi_select(ring=False)`) - In 3D viewport move selection - In adjust last operation panel modify some property Selection will change and result will be incorrect.

Eugene Du commented

2020-05-23 22:02:00 +02:00

Added subscriber: @APEC

Eugene Du commented

2020-05-24 09:36:51 +02:00

And before you say that it's not a bug,
I want to add interesting observation:

if we execute operator from text editor like this one

import bpy
bpy.ops.mesh.loop_multi_select(ring=False)

and then use any tool, selection will not drop.
But if we want more complex code, like this (custom addon in N panel called "Test Select" with button, depending of selected element it execute own operator)

import bpy, bmesh
from bpy.types import Panel, Operator

# Add-on info
bl_info = {
    "name": "Test Select",
    "author": "APEC",
    "version": (1, 0, 0),
    "blender": (2, 82, 0),
    "location": "View3D > Properties > Test Select",
    "description": "test select", 
    "wiki_url": "",
    "tracker_url": "",      
    "category": "3D View"
}

# Context selection: if polygons - Sel Linked All, if Edges - MultiSelect Loop, else - Sel Open Edges
class CONSEL_OT_context_select(Operator):
    bl_idname = "consel.context_select"
    bl_label = "Context selection"
    bl_description = "Selecting depend of selected elements"

    def execute(self, context):
        context = bpy.context
        ob = context.edit_object
        me = ob.data
        bm = bmesh.from_edit_mesh(me)
        
        # checking for face selected
        selFaces = [f for f in bm.faces if f.select]

        # checking for edge selected
        selEdges = [e for e in bm.edges if e.select]

        if selFaces:
            bpy.ops.mesh.select_linked(delimit={'SEAM'})
        if selEdges:
            bpy.ops.mesh.loop_multi_select(ring=False)
        else:
            bpy.ops.mesh.select_non_manifold(extend=False, use_wire=True, use_boundary=True, use_multi_face=True)
            bpy.ops.mesh.select_mode(type="EDGE")        
        return {'FINISHED'}

# UI: N panel - Test Select
class SELTOPOLOGY_PT_main(Panel):          
    bl_label = "Test Select"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = 'Test Select'
    
    def draw (self, context):
        layout = self.layout
                        
        row = layout.row(align=True)
        row.operator("consel.context_select")

def register():
    bpy.utils.register_class(CONSEL_OT_context_select)
    bpy.utils.register_class(SELTOPOLOGY_PT_main)

def unregister():
    bpy.utils.unregister_class(CONSEL_OT_context_select)
    bpy.utils.unregister_class(SELTOPOLOGY_PT_main)

if __name__ == "__main__":
    register()

and after that we use any tool and change any parameter in "Adjust Last Operation" panel, the selection will be dropped.

And before you say that it's not a bug, I want to add interesting observation: if we execute operator from text editor like this one ``` import bpy bpy.ops.mesh.loop_multi_select(ring=False) ``` and then use any tool, selection will not drop. But if we want more complex code, like this (custom addon in N panel called "Test Select" with button, depending of selected element it execute own operator) ``` import bpy, bmesh from bpy.types import Panel, Operator # Add-on info bl_info = { "name": "Test Select", "author": "APEC", "version": (1, 0, 0), "blender": (2, 82, 0), "location": "View3D > Properties > Test Select", "description": "test select", "wiki_url": "", "tracker_url": "", "category": "3D View" } # Context selection: if polygons - Sel Linked All, if Edges - MultiSelect Loop, else - Sel Open Edges class CONSEL_OT_context_select(Operator): bl_idname = "consel.context_select" bl_label = "Context selection" bl_description = "Selecting depend of selected elements" def execute(self, context): context = bpy.context ob = context.edit_object me = ob.data bm = bmesh.from_edit_mesh(me) # checking for face selected selFaces = [f for f in bm.faces if f.select] # checking for edge selected selEdges = [e for e in bm.edges if e.select] if selFaces: bpy.ops.mesh.select_linked(delimit={'SEAM'}) if selEdges: bpy.ops.mesh.loop_multi_select(ring=False) else: bpy.ops.mesh.select_non_manifold(extend=False, use_wire=True, use_boundary=True, use_multi_face=True) bpy.ops.mesh.select_mode(type="EDGE") return {'FINISHED'} # UI: N panel - Test Select class SELTOPOLOGY_PT_main(Panel): bl_label = "Test Select" bl_space_type = "VIEW_3D" bl_region_type = "UI" bl_category = 'Test Select' def draw (self, context): layout = self.layout row = layout.row(align=True) row.operator("consel.context_select") def register(): bpy.utils.register_class(CONSEL_OT_context_select) bpy.utils.register_class(SELTOPOLOGY_PT_main) def unregister(): bpy.utils.unregister_class(CONSEL_OT_context_select) bpy.utils.unregister_class(SELTOPOLOGY_PT_main) if __name__ == "__main__": register() ``` and after that we use any tool and change any parameter in "Adjust Last Operation" panel, the selection will be dropped.

Richard Antalik changed title from ~~Python Console: execute selection operator and after use all kind of tool and tweak parameter in "Adjust Last Operation" panel - drops selection~~ to Adjust Last Operation will change selection after running operator from console

2020-05-25 15:24:09 +02:00

Richard Antalik commented

2020-05-25 15:24:09 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Eugene Du commented

2020-05-28 11:00:03 +02:00

Another example:

Select some Object/s (no matter is it meshes, lights or cameras).
Run command in console (bpy.ops.object.delete(use_global=False)). Simple delete.
Add new object and change some parameter in "Adjust Last Operation" panel.
Deleted Object/s appear. Magic!

Another example: 1. Select some Object/s (no matter is it meshes, lights or cameras). 2. Run command in console (`bpy.ops.object.delete(use_global=False)`). Simple delete. 3. Add new object and change some parameter in "Adjust Last Operation" panel. 4. Deleted Object/s appear. Magic!

Campbell Barton commented

2020-09-08 09:43:15 +02:00

Added subscriber: @ideasman42

Campbell Barton commented

2020-09-08 09:43:15 +02:00

Changed status from 'Confirmed' to: 'Archived'

Campbell Barton closed this issue

2020-09-08 09:43:15 +02:00

Campbell Barton self-assigned this 2020-09-08 09:43:15 +02:00

Campbell Barton commented

2020-09-08 09:43:15 +02:00

In this case you need to explicitly request an undo step:

bpy.ops.mesh.loop_multi_select(True, ring=False)

See: https://docs.blender.org/api/master/bpy.ops.html#keywords-and-positional-arguments

In this case you need to explicitly request an undo step: ``` bpy.ops.mesh.loop_multi_select(True, ring=False) ``` See: https://docs.blender.org/api/master/bpy.ops.html#keywords-and-positional-arguments

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Adjust Last Operation will change selection after running operator from console #77004