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to create a bolt hole . i need to create a plane normal to three nodes . how to create plane normal to 3 nodes
regards,
JAMIE
Do you mean 'a vector which is normal to plane defined by 3 nodes'?
YA
Hello Jamie,
To get normal defined by a plane of 3 nodes you can try the below:
proc NormalFrmPlane {n1 n2 n3} { set lst_coord1 [lindex [hm_nodevalue $n1] 0]; set lst_coord2 [lindex [hm_nodevalue $n2] 0]; set lst_coord3 [lindex [hm_nodevalue $n3] 0]; set vec1 [::hwat::math::GetVector $lst_coord1 $lst_coord2]; set vec2 [::hwat::math::GetVector $lst_coord2 $lst_coord3]; set normal [::hwat::math::VectorCrossProduct $vec1 $vec2]; return $normal; }
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