custom property (listed in sub-classed panel) does not update driver's variable #23639

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Dolphin Dream · 2010-09-02T18:05:12+02:00

Dolphin Dream commented

2010-09-02 18:05:12 +02:00

%%%I noticed that a custom property of an object that is listed in a sub-classed panel (say, "My Own Panel" for an object) does not propagate its value to a driver's variable. However, the Custom Property panel's entry of the same custom property DOES propagate its value correctly to the driver's variable.

Example script: Run the script and go to Cube object's object panel. Change the property camXLocation value both in the Custom Property panel.. and in the "My Settings" panel. The Custom Properties prop changes translate the camera, the My Settings prop changes doesn't.

import bpy
import mathutils
from math import *
from bpy.props import *

link the cube's property to camera X location

def setupDriver():

  camera = bpy.data.objects['Camera']
  cube = bpy.data.objects['Cube']

# define and set custom property for cube object

  cube.FloatProperty(attr="camXLocation", default = 10.0, min = 0, max = 50)
  cube.camXLocation = 10.0

# create a driver for camera x location (scripted)

  driver = camera.driver_add("location", 0).driver
  driver.type = "SCRIPTED"
  driver.expression = "x"

# create a variable for the driver

  var = driver.variables.new()
  var.name = "x"

# link variable to cube object's camXLocation property

  targ = var.targets[0]
  targ.id_type = "OBJECT"
  targ.id = cube
  targ.data_path = 'camXLocation'

# I also tried targ.data_path = '["camXLocation"]'

object panel to display camXLocation property

class OBJECT_PT_my_settings(bpy.types.Panel):

  '''My Settings Panel'''
  bl_label = "My Settings"
  bl_space_type = "PROPERTIES"
  bl_region_type = "WINDOW"
  bl_context = "object"

# draw the gui

  def draw(self, context):
      layout = self.layout

      ob = context.active_object

      if ob and ob.name == "Cube":

        # some property

          row = layout.row()
          row.prop(ob, "camXLocation", text="Camera X Location")

def register():

  bpy.types.register(OBJECT_PT_my_settings)

def unregister():

  bpy.types.unregister(OBJECT_PT_my_settings)

if name == "main":

  register()
  setupDriver()

%%%

%%%I noticed that a custom property of an object that is listed in a sub-classed panel (say, "My Own Panel" for an object) does not propagate its value to a driver's variable. However, the Custom Property panel's entry of the same custom property DOES propagate its value correctly to the driver's variable. Example script: Run the script and go to Cube object's object panel. Change the property camXLocation value both in the Custom Property panel.. and in the "My Settings" panel. The Custom Properties prop changes translate the camera, the My Settings prop changes doesn't. import bpy import mathutils from math import * from bpy.props import * # link the cube's property to camera X location def setupDriver(): ``` camera = bpy.data.objects['Camera'] cube = bpy.data.objects['Cube'] ``` # define and set custom property for cube object ``` cube.FloatProperty(attr="camXLocation", default = 10.0, min = 0, max = 50) cube.camXLocation = 10.0 ``` # create a driver for camera x location (scripted) ``` driver = camera.driver_add("location", 0).driver driver.type = "SCRIPTED" driver.expression = "x" ``` # create a variable for the driver ``` var = driver.variables.new() var.name = "x" ``` # link variable to cube object's camXLocation property ``` targ = var.targets[0] targ.id_type = "OBJECT" targ.id = cube targ.data_path = 'camXLocation' ``` # I also tried targ.data_path = '["camXLocation"]' # object panel to display camXLocation property class OBJECT_PT_my_settings(bpy.types.Panel): ``` '''My Settings Panel''' bl_label = "My Settings" bl_space_type = "PROPERTIES" bl_region_type = "WINDOW" bl_context = "object" ``` # draw the gui ``` def draw(self, context): layout = self.layout ``` ``` ob = context.active_object ``` ``` if ob and ob.name == "Cube": ``` # some property ``` row = layout.row() row.prop(ob, "camXLocation", text="Camera X Location") ``` ``` ``` def register(): ``` bpy.types.register(OBJECT_PT_my_settings) ``` def unregister(): ``` bpy.types.unregister(OBJECT_PT_my_settings) ``` if __name__ == "__main__": ``` register() setupDriver() ``` %%%

Dolphin Dream commented

2010-09-02 18:05:12 +02:00

Changed status to: 'Open'

Nathan Letwory commented

2010-09-20 13:23:04 +02:00

%%%This is something for todo. Dependency graph needs to be redesigned for this. Moving to todo wiki: http://wiki.blender.org/index.php/Dev:2.5/Source/Development/Todo/UserInterface#Dependency_Graph%%%

Nathan Letwory commented

2010-09-20 13:23:04 +02:00

Changed status from 'Open' to: 'Archived'

Nathan Letwory closed this issue

2010-09-20 13:23:04 +02:00

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custom property (listed in sub-classed panel) does not update driver's variable #23639

link the cube's property to camera X location

object panel to display camXLocation property