* 1,0,0 means consider all points
filter/1,0,0/
* rayend points are set to invisible (21 is the code for invisible)
* they were used as end points of the rays in the regnpts command
cmo/setatt//itp/pset,get,rayend/21/
* assign material colors to the points
* identify points that are on material interfaces
* identify constrained points
setpts
* connect the points into a Delaunay tetrahedral mesh
* do not connect across material interfaces - add points if necessary to resolve material interfaces
connect
* set element (tetrahedral) color
* spawn child points at material interfaces
settets
* dump mesh to some output form
dump/gmv/filename
* terminate processing
finish
The complete input for the tutorial
is:
cmo/create/3dmesh/
* unit cube
surface/cube/reflect/box/0.0,0.0,0.0/1.0,1.0,1.0/
* define z=.5 plane as interface
surface /cutplane/intrface/plane/0.,0.,.5/1.,0.,.5/1.,1.,.5/
*define geometric regions
region/top/ le cube and gt cutplane /
region/bottom/ le cube and le cutplane /
* define material regions
mregion/mattop/ le cube and gt cutplane /
mregion/matbot/ le cube and lt cutplane /
* create 25 points (5x5x1) in a plane above the unit cube
* place points on the boundaries in the x and y directions (1,1,0)
createpts/xyz/5,5,1/0.,0.,1.1/1.,1.,1.1/1,1,0/
* give the points defined by the createpts command the name, rayend
pset/rayend/seq/1,0,0/
* create rays between points in rayend and the plane below the cube
* distribute 3 points along these rays in the region top
* add one point at the upper external boundary for each ray
regnpts/top/3/pset,get,rayend/xyz/0.,0.,-.1/0.,1.,-.1/1.,1.,-.1/0,0/
* distribute 4 points along these rays in the region bottom
* add one point at the lower external boundary for each ray
* add one point at the material interface for each ray since
* bottom contains the interface - a total of 5 points for each ray.
* points will be distributed such that the ratio of distances between
* any two consecutive pairs of points is 0.6 traveling from the source
* of the ray (the plane) to the ray end.
regnpts/bottom/4/pset,get,rayend/xyz/0.,0.,-.1/0.,1.,-.1/1.,1.,-.1/1,.6/
* eliminate coincident or nearly coincident points
* 1,0,0 means consider all points
filter/1,0,0/
* rayend points are set to invisible (21 is the code for invisible)
* they were used as end points of the rays in the regnpts command
cmo/setall//itp/pset,get,rayend/21/
* assign material colors to the points
* identify points that are on material interfaces
* identify constrained points
setpts
* connect the points into a Delaunay tetrahedral mesh
* do not connect across material interfaces -
* add points if necessary to resolve material interfaces
connect
* set element (tetrahedral) type
settets
* dump mesh to some output form
dump/gmv/filename
* terminate processing
finish