x,y file

Suppose you want a square domain with a rotated square within it, both being meshed. Create a file consisting of x,y pairs, preceeded by the number of x,y pairs in that object. For instance, we want:

     4
     0         0
     1000000   0
     1000000   1000000
     0         1000000
     4
     500000    146446.6
     853553.4   500000
     500000    853553.4
     146446.6   500000

This defines an outer square and an inner square, each defined by four points. The distances here are in meters.