I found a bug in the setPosition of Node3D (VizNode)
Code:
import vizshape, viz
viz.go()
vizshape.addGrid()
group1 = viz.addGroup()
group1.setPosition(3.0, 0.0, 10.0)
cube1 = vizshape.addCube(3.0, parent=group1)
cube1.setPosition(0.0,0.0,10.0, mode=viz.ABS_GLOBAL)
cube1.alpha(0.5)
group2 = viz.addGroup()
group2.setPosition(3.0, 0.0, 10.0)
cube2 = vizshape.addCube(2.0, color = (1.0,0.0,0.0), parent=group2)
cube2.setPosition((0.0,0.0,10.0), mode = viz.ABS_GLOBAL)
The following simple example should place the two cubes on the same location. Both use the "mode=viz.ABS_GLOBAL" flag to set the cube on "0.0, 0.0, 10.0" position. The first white cube will be placed correctly the second red cube will be placed relative to the parent.