input.cylrot use rotateln and trans to move cylinder
create a cylinder centered around x=.5,z=.5, radius = .1
the cylinder is aligned parallel to the y-axis.
inside a box of width =2 , length=2 ,1
the regions are air for the cylinder - solid outside the cyl.
points are spread by surrounding the whole object with
a cylinder shell of points and then creating rays between
these points and the major axis of the cylinder. Points
are distributed along these rays inside the cylindrical region.
a background rectangular grid of points is spread outside the
surface/box1/reflect /box/-1.0,-1.0,0.0/ 1.0, 1.0, 1.0/
surface/h1/intrface /cylinder/ 0.5, -1.,0.5/ 0.5, 1.0, 0.5/.1/
region/H1/ le box1 and le h1 /
region/Fill/ le box1 and gt h1 /
mregion/Air/ le box1 and lt h1 /
regnpts/Fill/11/pset,get,rays/xyz/ 0.0,0.0,-0.1/1.0,1.0,-0.1/ &
the rz command always distributes points with the z-axis as
the axis of symmetry
use the rotateln and trans commands to move the point
distribution after it is created.