PME Treasure

Execute a modal-style operator without reopening its interaction

2 min read

Historical · current compatibility unverified

The linked 2018 posts discuss a Macro/Modal setup for transform.tosphere with value=1.0. They do not state the PME or Blender version, so test this recipe before using it in a current setup.

The answer was to call the operator with EXEC_DEFAULT:

bpy.ops.transform.tosphere("EXEC_DEFAULT", value=1.0)

INVOKE_DEFAULT starts the interactive flow and may wait for another click or mouse confirmation. EXEC_DEFAULT runs immediately with the supplied properties when the operator supports direct execution.

Steps

  1. Identify whether the operator is being invoked interactively or executed with already-known values.

  2. In a PME Command or Macro item, replace the invoke context with EXEC_DEFAULT and supply the operator properties:

    bpy.ops.transform.tosphere("EXEC_DEFAULT", value=1.0)

  3. Test on a copy of the blend file. Confirm the result and undo behavior.

  4. Test from the editor and mode where you intend to use it. Blender still checks the operator’s poll() requirements.

When to keep interactive execution

  • Operators that need mouse coordinates, a modal handler, or other invoke-only setup may cancel under EXEC_DEFAULT.
  • The editor, mode, selection, and active object must still satisfy the operator’s requirements.
  • Keep INVOKE_DEFAULT for a Macro step that should let you adjust the result interactively.

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