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[Lei Hang <question691702@xxxxxxxxxxxxxxxxxxxxx>]

Question #691702 on Yade changed:
https://answers.launchpad.net/yade/+question/691702

    Status: Answered => Open

Lei Hang is still having a problem:
Thank you for your quick answers!

Some questions still confuse me. The script of periodic simple shear is as following：
https://gitlab.com/yade-dev/trunk/blob/master/doc/sphinx/tutorial/04-periodic-simple-shear.py

1. Why it add"!" behind the "stress[2,2]"? （If it means factorial, non-
negative factorial is greater than or equal to one）

2.In my opinion, the script in line 116
(b.shape.color=scalarOnColorScale(b.state.rot().norm(),0,pi/2.)) means
the color of the variable will change according to the value of the
variable compared to 0 and pi/2.  But I can't relate it to the
specification(yade._utils.scalarOnColorScale((float)x[, (float)xmin=0[,
(float)xmax=1]]) → Vector3)[1]. What's the meaning of "((float)x[,
(float)xmin=0[, (float)xmax=1]]) "

Many thanks!!!

[1]https://yade-
dem.org/doc/yade.utils.html?highlight=scalaroncolorscale#yade._utils.scalarOnColorScale

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