Hi all, I seems that there are several implementations for computing contours: the __contourc__.cc originally from plplot and the script implementation in contourf.m from octplot. For me, the implementation in contourf.m
works more reliably than the __contourc__.cc implementation. __contourc__.cc produces sometimes discontinuous contour lines. As contourf.m is written, it would be very easy to extract the contour generation code and make a new
contourc.m to replace __contourc__.cc.
I would also be interested to implement arbitrary quadrilateral meshes. What do you think?