# rectangle vertex definition 
vertex 1 xyz 0.0 0.0 0.0 
vertex 2 xyz 1.0 0.0 0.0 
vertex 3 xyz 1.0 1.0 0.0 
vertex 4 xyz 0.0 1.0 0.0 
# definition of curves connecting verteces 
curve 1 vertex 1 2 
curve 2 vertex 2 3 
curve 3 vertex 3 4 
curve 4 vertex 4 1 
# surface definition - counter clockwise order - the same node numbering of elements as SIFEL
surface 1 curve 4 3 2 1 
# option 'quad map yes equidistant' involved in the line with the surface definition causes
# the triangular mesh to be mapped on the retangular mesh

