[pstricks] smoothing 3d plot (pst-3dplot with fileplotThreeD)

[Toche, Patrick]

answering (perhaps) one of my three questions (the easiest by far)

> 3. how to get all three arrows point away from (0,0,0)

I think adding the option IIIDOffset = {(-1,0,0)}
to \pstThreeDCoor  does the trick, but it's hard to be sure without any labels on the axes...