# This example shows how to set vertex envelope weights
# on a deformer without normalizing the weights
xsiApp = Application
# Create the scene made of a cube and 3 nulls
xsiApp.NewScene( None, False )
root = xsiApp.ActiveProject.ActiveScene.Root
grid = root.AddGeometry( "cube", "MeshSurface" )
n = root.AddNull()
n1 = root.AddNull()
n2 = root.AddNull()
# Move the nulls
xsiApp.Translate( n, 1, 0, 1 )
xsiApp.Translate( n1, 0, 0, 1 )
xsiApp.Translate( n2, 0, 0, 0 )
# Create a deformer list made of the 3 nulls
deformers = XSIFactory.CreateObject( "XSI.Collection" )
deformers.Add( n )
deformers.Add( n1 )
deformers.Add( n2 )
# Create an Envelope Weight on the grid with the 3 nulls
env = grid.ApplyEnvelope( deformers )
# Output the current values of the Envelope Weight
xsiApp.LogMessage( "Envelope Weights before user edit" )
allWeights = env.GetWeights2( None )
i = 0
for vertexWeights in allWeights:
        sum = 0
        for singleWeight in vertexWeights:
                sum += singleWeight
        xsiApp.LogMessage( "Vertex " + str( i ) + ": " + 
                                           str( "Deformer 0: %4.1f, " % vertexWeights[ 0 ] ) +
                                           str( "Deformer 1: %4.1f, " % vertexWeights[ 1 ] ) +
                                           str( "Deformer 2: %4.1f, " % vertexWeights[ 2 ] ) +
                                           str( "Vertex Weight Sum: %5.1f" % sum ) )
        i += 1
xsiApp.LogMessage( "" )
# Set new vertex envelope weights for the first deformer
env.SetDeformerWeights2( n, [10,10,10,10,10,10,10,10] )
# Output the new values of the Envelope Weight
xsiApp.LogMessage( "Envelope Weights after user edit" )
allWeights = env.GetWeights2( None )
i = 0
for vertexWeights in allWeights:
        sum = 0
        for singleWeight in vertexWeights:
                sum += singleWeight
        xsiApp.LogMessage( "Vertex " + str( i ) + ": " + 
                                           str( "Deformer 0: %4.1f, " % vertexWeights[ 0 ] ) +
                                           str( "Deformer 1: %4.1f, " % vertexWeights[ 1 ] ) +
                                           str( "Deformer 2: %4.1f, " % vertexWeights[ 2 ] ) +
                                           str( "Vertex Weight Sum: %5.1f" % sum ) )
        i += 1
#-----------------------------------------
# Output of this example is the following:
#-----------------------------------------
# INFO : Envelope Weights before user edit
# INFO : Vertex 0: Deformer 0:  0.0, Deformer 1: 41.5, Deformer 2: 58.5, Vertex Weight Sum: 100.0
# INFO : Vertex 1: Deformer 0: 48.0, Deformer 1:  0.0, Deformer 2: 52.0, Vertex Weight Sum: 100.0
# INFO : Vertex 2: Deformer 0:  0.0, Deformer 1: 41.5, Deformer 2: 58.5, Vertex Weight Sum: 100.0
# INFO : Vertex 3: Deformer 0: 48.0, Deformer 1:  0.0, Deformer 2: 52.0, Vertex Weight Sum: 100.0
# INFO : Vertex 4: Deformer 0:  0.0, Deformer 1: 57.8, Deformer 2: 42.2, Vertex Weight Sum: 100.0
# INFO : Vertex 5: Deformer 0: 59.3, Deformer 1: 40.7, Deformer 2:  0.0, Vertex Weight Sum: 100.0
# INFO : Vertex 6: Deformer 0:  0.0, Deformer 1: 57.8, Deformer 2: 42.2, Vertex Weight Sum: 100.0
# INFO : Vertex 7: Deformer 0: 59.3, Deformer 1: 40.7, Deformer 2:  0.0, Vertex Weight Sum: 100.0
# INFO : 
# INFO : Envelope Weights after user edit
# INFO : Vertex 0: Deformer 0: 10.0, Deformer 1: 37.3, Deformer 2: 52.7, Vertex Weight Sum: 100.0
# INFO : Vertex 1: Deformer 0: 10.0, Deformer 1:  0.0, Deformer 2: 52.0, Vertex Weight Sum:  62.0
# INFO : Vertex 2: Deformer 0: 10.0, Deformer 1: 37.3, Deformer 2: 52.7, Vertex Weight Sum: 100.0
# INFO : Vertex 3: Deformer 0: 10.0, Deformer 1:  0.0, Deformer 2: 52.0, Vertex Weight Sum:  62.0
# INFO : Vertex 4: Deformer 0: 10.0, Deformer 1: 52.0, Deformer 2: 38.0, Vertex Weight Sum: 100.0
# INFO : Vertex 5: Deformer 0: 10.0, Deformer 1: 40.7, Deformer 2:  0.0, Vertex Weight Sum:  50.7
# INFO : Vertex 6: Deformer 0: 10.0, Deformer 1: 52.0, Deformer 2: 38.0, Vertex Weight Sum: 100.0
# INFO : Vertex 7: Deformer 0: 10.0, Deformer 1: 40.7, Deformer 2:  0.0, Vertex Weight Sum:  50.7