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object on the fly--how to change color of particular vertex
With the following code, I created an object on-the-fly, a green polygon. Then I want to create a vertical transparent stripe, that is, set vertex 2 and 5 to be transparent. But the code doesn't work this way. Why? Thanks!
viz.startLayer(viz.POLYGON) viz.vertexColor(viz.GREEN) viz.vertex(0.0,0.0,0.0) viz.vertex(0.5,0.0,0.0) viz.vertex(0.6,0.0,0.0) viz.vertex(1.0,0.0,0.0) viz.vertex(1.0,1.0,0.0) viz.vertex(0.6,1.0,0.0) viz.vertex(0.5,1.0,0.0) viz.vertex(0.0,1.0,0.0) target=viz.endLayer() target.dynamic() target.setVertexColor(2,[0,0,1,0.2]) target.setVertexColor(5,[0,0,1,0.2]) |
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object on-the-fly, transparent, vertex |
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