hm_comparesetelemsurfmode

Specifies whether to consider element centroids for element-to-surface comparisons.

Syntax

hm_comparesetelemsurfmode mode

Type

HyperMesh Tcl Query Command

Description

Specifies whether to consider element centroids for element-to-surface comparisons. This must precede any calls to hm_compareentities* commands. This is useful particularly when comparing coarse meshes and highly curved surfaces.

When this option is enabled, a comparison operation will associate an element with a surface if the element has all its nodes on that surface, or at least one node and the element centroid projects normally to the surface and that projected point lies within roughly one quarter of the average side length of the centroid. Note that for elements that are partially off the edge of a surface, if the centroid is not on the surface but part of the element is (more than just a node or edge), the element will be marked as unmatched instead of intersected.

Inputs

mode: 0 - Do not consider element centroids (default); 1 - Consider element centroids

Example

To generate a same side comparison of surfs 1-20 and elems 101-120, including element centroids:

*createmark surfs 1 1-20
*createmark elems 2 101-120
hm_compareinit
hm_comparesetelemsurfmode 1
hm_compareentitiessameside surfs 1 elems 2 0.1 2 0
hm_compareend

Errors

Incorrect usage results in a Tcl error. To detect errors, you can use the catch command:

if { [ catch {command_name...} ] } {
   # Handle error
}

Version History

13.0