How to judge a surface is curve surface or flat surface?
Altair EmployeeHi,
I am the rookie of the tcl.I have some basic questions.But i can not find it in api document.
Supposed i have a solid,which has many surfaces and lines.
how to judge a surface is curve surface or flat surface?
how to judge a line is curve line or flat line?
For more,can i know the expression（formula） of surface(line)?
Thanks!
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There is an api but i can't remember, maybe it is removed in new version
A workaround:
A straight line is simply tested by
proc IsStraight LineID {
*createmark lines 1 $LineID
catch {hm_getbestcirclecenter lines 1 1}
}
A surface?
- create a few lines on it (extract parametric lines)
- check straight for those lines, if all straight => flat surf (not sure) /emoticons/default_rolleyes.gif' title=':rolleyes:' />
Hi @xiaoming
Check the following things.
・line length vs point-point distance of each edges.
・normal of surface at each points.
Related APIs.
・hm_linelength
・hm_getdistance
・hm_getsurfacenormal