hm_getcoordinatesfromnearestsurface

Finds coordinates of a point that belongs to one of surfaces in input set and is a closest point to the location specified in command input.

Syntax

hm_getcoordinatesfromnearestsurface x y z surf_id_list

Type

HyperMesh Tcl Query Command

Description

This command finds the point on one of surfaces (specified by the list of surface IDs surf_id_list) closest to the point specified by coordinates x, y, z. The command returns the result as a list of four values. The first, second and third value in the list specify the x, y and z coordinates of the closest point correspondingly. The fourth value in the list is the ID of the surface on which the closest point is found.

Inputs

x
The x coordinate.
y
The y coordinate.
z
The z coordinate.
surf_id_list
The ID of the surface on which the closest point is found.

Example

To find coordinates of the point on surface 12 that is closest to the location specified by x=1, y=3, z=5:

hm_getcoordinatesfromnearestsurface 1 3 5 12

On surfaces with IDs 12, 14, 15 find the point closest to global origin point (x=0, y=0, z=0):

hm_getcoordinatesfromnearestsurface 0 0 0 [ list 12 14 15 ]

To create node on surface with ID 10, closest to the point specified by x=1, y=3, z=5:

set closest_pnt [ hm_getcoordinatesfromnearestsurface 1 3 5 10 ]
set x [ lindex $closest_pnt 0 ] set y [ lindex$closest_pnt 1 ]
set z [ lindex $closest_pnt 2 ] *createnode$x $y$z

Errors

Incorrect usage of hm_getcoordinatesfromnearestsurface results in a Tcl error. The function returns an error when the list of input surfaces (surf_id_list) is empty or some of IDs specified in surf_id_list does not belong to any surface in the model. To detect errors, you can use the Tcl catch command:

if { [ catch { hm_getcoordinatesfromnearestsurface $x$y $z$surf_list } ] } {
# Handle error here
}

9.0