In the end I combined the contours and points and used r.fillnulls to generate a 5m DEM. It seemed to run quite a bit faster than r.surf.contours and gave fairly good results. Not perfect, but given the data I'm starting with, its not bad either.
My next problem is getting r.sim.water working. Does anyone have any experience with this? I have a quite a few questions about it: - What exactly do the diffusion terms and weighting factor do? - What is the best way of simulating hydraulic controls such as bridges or weirs (is it even possible)? - Is there a correlation between the time used for iterations (niter) and the storm duration? If not, then how do I determine it? - How applicable is this model to flow in rivers? - I want to try to use this model for floodline generation. Does anyone know of any work that has already been done on this, or is the model totally unsuitable? I had hoped to figure some of this out by myself, but whenever I try running the simulation I get empty output. Can anyone help? David _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
