I'm trying to extract isolines from scalar fields (volume datasets in nrrd or raw format), based on BC-splines using the kernels of teem/nrrd. I am basically looking for a sophisticated extension of marching squares (that uses linear interpolation only).
I took a look at the source code of MACET, AFRONT, and the tutorial of nrrd (although this is for indirect volume rendering) with no luck. I also saw that back in 2006 teem distribution used to have a contours.h library which is no longer supported. Maybe you move this functionality somewhere else? or, is isocontour extraction out of the scope of the current capabilities of teem?
Graduate student of Computer Science