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How to draw a cone correctly to form an arrow in VMD ?

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vitalys

发布时间: 2023-9-14 01:18

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If you please, i would like to know if there is a rule to draw a cone along with a cylinder to draw an arrow, because i draw the cylinder and the cone easily using the following commands: draw cylinde ...

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sobereva 发表于 Post on 2023-9-14 20:36:27

vitalys 发表于 2023-9-14 20:07
Thank you very much, but what i don't understand is how to determine the coordinates (endx2 endy2 ...

Assume that unit vector of the cylinder is u and the cylinder has length of k, and the beginning point of the cone is a, then the ending point of the cone should be a+0.1*k*u

sobereva 发表于 Post on 2023-9-14 02:51:49

This is my script defining "drawarrow" command, you can consult its content

drawarrow.tcl (981 Bytes, 下载次数 Times of downloads: 2)

This command is used by an example of Multiwfn program manual to draw dipole moment vector of two molecules and the whole system:

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