Set mesh object element color (itetclr) and create child points at interior interfaces. This command can also be used to set the node color from the element color. Note color values must be an integer number greater than 0.
settets/color_tets detirmines the color of all elements using the following tests;
If the element contains a non-interface point, the element color is set to this value. If the
element is comprised entirely of interface points, the centroid of the element is calculated and the material region containing this point is determined; the element color is set to this material. If the centroid of the element is not in any material region, the centroid must be on an interface surface. In this case all vertices of the element are examined
and the material common to all vertices is selected as the element color.
parents has exactly the same behavior as
except that existing values of itetclr are used for elements containing non-interface nodes.
geometry sets the element color based on the material region
containing the centroid of the element for all elements; existing values
of itetclr are ignored.
color_points sets the node material (imt1) from the element color
(itetclr); existing values of itetclr are not changed.
settets/newtets has the same behavior as
that existing positive values of itetclr are not changed.
settets/normal assigns the itetclr array of a triangle mesh to an
integer value depending on the normal vector direction. There are 26
possible direction that correspond to the 6 faces, 12 edges and 8
corners of a cube. In general most triangles will be assigned one of 6
values which correspond to the 6 sectors which are within degrees of
the 6 unit vectors: 1 0 0 , 0 1 0 , 0 0 1, -1 0 0, 0 -1 0, 0 0 -1. See image and table below.
NOTE: Valid for a quadrilateral or triangle mesh.
# Projected cube onto a sphere to capture all 26 directions cmo / create / motet_sph createpts/sphere/1/5/162/1.0,0.5/0.,0.,0./1,0,0.0/ cmo / setatt / motet_sph / imt / 1 0 0 / 1 filter / 1 0 0 rmpoint / compress connect cmo / setatt / motet_sph / itetclr / 1 0 0 / 1 resetpts / itp extract / surfmesh / 1 0 0 / motri_sph / motet_sph cmo/select/motri_sph settets/normal cmo/printatt/motri_sph/ itetclr / minmax dump / sphere_colors.inp / motri_sph
Creates a sphere shaped triangulated surface with colors 1-26 based on normal directions with the view set so the min x,y,z coordinate is left,front,bottom. Direction numbering starts at bottom then top then right, back, left, front as shown in table and image.
1 bottom (blue) 2 top (red) 3 right = east (green) 4 back = north (orange) 5 left = west (aqua) 6 front = south (yellow) 7 bottom right edge (dark gray) 8 bottom front edge (dark gray) 9 front right side edge (black) 10 bottom back edge (dark gray) 11 back right side edge (black) 12 bottom left edge (dark gray) 13 left back side edge (black) 14 front left side edge (black) 15 top right edge (light gray) 16 top front edge (light gray) 17 top back edge (light gray) 18 top left edge (light gray) 19 bottom front right corner (magenta) 20 bottom back right corner (magenta) 21 bottom back left corner (magenta) 22 bottom front left corner (magenta) 23 top front right corner (magenta) 24 top back right corner (magenta) 25 top back left corner (magenta) 26 top front left corner (magenta)
Image shows triangle elements colored by 26 normal values. Image materials are expanded to show all.