Attempting to Connect Custom Properties in Relation Constraint causes Crash in MoBu...?

[Anonymous]

Hey...

I have a quite complicated Relation Constraint that I want to automate the creation of that affects different movements of a facial rig... However, although I know how to create Custom Properties - and create Relation Constraints, connections etc... I have so far not had to connect Custom Properties...

Manually I have to set the Custom Property to 'animatable' by toggling the 'A' button on the right of the slider to view the Property in the Relation Window before I can create a connection... How do I replicate this in Python...? Maybe this is all the problem is...?

The code below is something I have borrowed from this site for testing (thanks to whoever it was I got it from...!)

This works for connecting existing Properties...

from pyfbsdk import * 

################################

def FindAnimationNode( pParent, pName ):
    lResult = None
    for lNode in pParent.Nodes:
        if lNode.Name == pName:
            lResult = lNode
            break
    return lResult
    
################################

def createSourceBox (sourceObj):
        
    sourceBox = lConstraintRelation.SetAsSource (sourceObj)
    return sourceBox
    
###############################

def createTargetBox (targetObj):

    targetBox = lConstraintRelation.ConstrainObject (targetObj)
    return targetBox

###############################

def connectThem (sourceBox, sourceChannel, targetBox, targetChannel):

    OUT = FindAnimationNode (sourceBox.AnimationNodeOutGet(),sourceChannel)
    IN = FindAnimationNode (targetBox.AnimationNodeInGet(),targetChannel)
    FBConnect (OUT, IN)

###############################

lConstraintRelation = FBConstraintRelation('Test')

myBox = FBModelMarker('My_Box')
myBox.Show = True
myBox.PropertyCreate('Test', FBPropertyType.kFBPT_int, 'Integer', True, True, None)

myBox1 = FBModelMarker('My_Box1')
myBox1.Show = True
myBox1.PropertyCreate('Test', FBPropertyType.kFBPT_int, 'Integer', True, True, None)

x = createSourceBox (myBox)
y = createTargetBox (myBox1)

connectThem (x, 'Rotation', y, 'Rotation')
connectThem (x, 'Translation', y, 'Translation')

but if I change the last two lines to connect the Custom "Test" Property...

connectThem (x, 'Test', y, 'Test')
connectThem (x, 'Translation', y, 'Translation')

I get a crash...

Any help would be much appreciated...

Cheers

Peter

[stevkalinowski]

The new custom property must be set to Animated in order for the plug to be available to use in a Relation Constraint. This is the equivalent of toggling the "A" button next to the property in the Property Editor.


Modified code:

lConstraintRelation = FBConstraintRelation('Test')

myBox = FBModelMarker('My_Box')
myBox.Show = True
lBoxProp = myBox.PropertyCreate('Test', FBPropertyType.kFBPT_int, 'Integer', True, True, None)
# Set the new property to Animatable
lBoxProp.SetAnimated(True)

myBox1 = FBModelMarker('My_Box1')
myBox1.Show = True
lBoxProp1 = myBox1.PropertyCreate('Test', FBPropertyType.kFBPT_int, 'Integer', True, True, None)
# Set the new property to Animatable
lBoxProp1.SetAnimated(True)

x = createSourceBox (myBox)
y = createTargetBox (myBox1)

connectThem (x, 'Rotation', y, 'Rotation')
connectThem (x, 'Translation', y, 'Translation')

connectThem (x, 'Test', y, 'Test')

Stev

[Anonymous]

Thanks Stev...

I did finally cobble something together from the standard documentation after a long time searching through forums etc. and came up with this:

myBox = FBModelMarker('My_Box')
myBox.Show = True
myBox.PropertyCreate('Test', FBPropertyType.kFBPT_int, 'Integer', True, True, None)

editProperty = myBox.PropertyList.Find('Test')
editProperty.SetAnimated(True)

Which is, I guess pretty much the same - but I think for keeping it tidy I'll be using yours...!!!

Very much appreciated.

Cheers

Peter