blender-id-mask-tools/src/operators/id_mask_select.py
2024-02-02 20:51:48 +01:00

70 lines
No EOL
2.2 KiB
Python

import bpy
class IDEDITOR_SelectIDMaskOperator(bpy.types.Operator):
bl_idname = "id_mask_editor.select_id_mask"
bl_label = "Select by ID Mask"
bl_description = "Selects the faces of the active object, based on current ID mask"
isCalledFromEditor: bpy.props.BoolProperty(default=False)
@classmethod
def poll(cls, context):
obj = context.active_object
if obj.type != 'MESH':
return False
if not obj.data:
return False
mesh = obj.data
properties = mesh.id_mask_editor_properties
if not properties.target_attribute:
return False
return True
def execute(self, context):
obj = context.active_object
old_mode = bpy.context.object.mode
if old_mode != "OBJECT":
bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
mesh = obj.data
properties = mesh.id_mask_editor_properties
color_attribute = mesh.color_attributes.get(properties.target_attribute)
test_color = self.get_test_color(properties, mesh, color_attribute)
if not test_color:
if old_mode != "OBJECT":
bpy.ops.object.mode_set(mode=old_mode, toggle=False)
return {'FINISHED'}
for polygon in mesh.polygons:
polygon_color = self.get_color_from_polygon(color_attribute, polygon)
if test_color[0] != polygon_color[0] or test_color[1] != polygon_color[1] or test_color[2] != polygon_color[2]:
continue
polygon.select = True
if old_mode != "OBJECT":
bpy.ops.object.mode_set(mode=old_mode, toggle=False)
return {'FINISHED'}
def get_test_color(self, properties, mesh, color_attribute):
if self.isCalledFromEditor:
color = properties.possible_ids[properties.active_id].color
return (color.r, color.g, color.b, 1.0)
if mesh.polygons.active:
return self.get_color_from_polygon(color_attribute, mesh.polygons[mesh.polygons.active])
return None
def get_color_from_polygon(self, attribute, polygon):
color = attribute.data[polygon.loop_indices[0]].color
return (color[0], color[1], color[2], 1.0)