netgen/tutorials/newin2d.in2d
Joachim Schoeberl 8df293cd64 tutorial files
2009-01-13 21:37:31 +00:00

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# demo - .in2d file
# geometry consists of two squares,
# the inner square is made of iron, the outer is not specified (default)
# boundary condition 1 on the outside, 2 on the interface between inner and outer square
# new .in2d geomety files ...
# start with keyword splinecurves2dnew
splinecurves2dnew
# next the refinement factor
2
# points
# first the total number of points
8
# then the details:
# point nr ( need not be ordered ) --- x-coord --- y-coord --- flags
# the refinement factor is an optional flag, -ref=factor, default 1
# the first, outer square
2 1 0
1 0 0 -ref=10
3 1 1
4 0 1
# here begins the second square
6 0.9 0.1
5 0.2 0.1
7 0.9 0.9
8 0.2 0.9
# segments
# first: number of segments
8
# then the segment information
# domain in --- domain out --- number of points --- points --- flags
# again, the refinement factor is an optional flag, -ref=factor, default 1
# still on the wishlist: give names to the boundary conditions, and have a default value for non-specified bcs
# (similar to materials in subdomains)
1 0 2 1 2 -bc=1
1 0 2 2 3 -bc=1
1 0 2 3 4 -bc=1
1 0 2 4 1 -bc=1
2 1 2 5 6 -bc=2 -ref=2
2 1 2 6 7 -bc=2
2 1 2 7 8 -bc=2
2 1 2 8 5 -bc=2
# materials
# first the number of subdomains
2
# then
# subdomain nr ---- material
# works the same way as materials in 3d csg geometries,
# non-specified domains get a default value
# maximal meshsize can be given by -maxh=.. flag
1 iron -maxh=0.1