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Hi sathish,
you can use 'on plane' option in *createmark.
for example if you have base coordinates and vector normals,
*createmark nodes 1 'on plane' $baseX $baseY $baseZ $normalX $normalY $normalZ 0.1 0 0
hm_getmark nodes 1
Hi Sathish,
you can find a proc for vector normals from 3 nodes in following thread:
https://community.altair.com/community?id=community_question&sys_id=0396447a1b2bd0908017dc61ec4bcb47
use the proc to find vector normals:
set vecNormals [NormalFrmPlane $N1 $N2 $N3]
set baseCords [lindex [hm_nodevalue $baseNode] 0]
substitute these values in *createmark command
*createmark nodes 1 'on plane' {*}$baseCords {*}$vecNormals 0.1 0 0