hm_getuvvectors
Returns the parametric uv vectors at a node, point or xyz location on the referenced surface.
Syntax
hm_getuvvectors surf_id input_mode options ?scaled?
Type
HyperMesh Tcl Query Command
Description
Returns the parametric uv vectors at a node, point or xyz location on the referenced surface. The u and v vectors are returned as a list containing six values. The first three values are u_x, u_y and u_z. The second three values are v_x, v_y and v_z. The vectors are normalized and are relative to the global coordinate system.
This command is only valid for single surfaces or surfaces generated by trimming one original surface and suppressing edges. It is not valid for the generic case of surfaces composed from different parametric patches by suppressing edges only (for example, two separate surfaces stitched together, then edges suppressed).
Inputs
- surf_id
- The ID of the surface.
- input_mode
- Specifies how the input location is being defined. Valid values are:
- options
- Depending on the input_mode, these vary. Valid values for each input mode are:
- scaled
- Optional argument used when the referenced surface is a trimmed surface. If the value is set to 0 (default), the uv vectors returned will be in reference to the parametric space of original untrimmed surface. If the scale value is set to 1, the uv vectors returned will be in reference to the parametric space of the trimmed surface.
Examples
To get the uv vectors at (100,0,0) on surface 1:
hm_getuvvectors 1 "by xyz" 100 0 0
To get the uv vectors at node 100 on surface 1:
hm_getuvvectors 1 "by node" 100
To get the uv vectors at point 100 on surface 1:
hm_getuvvectors 1 "by point" 100
Errors
if { [ catch {command_name...} ] } {
# Handle error
}
Version History
10-SA1-130