Opened 16 years ago
Closed 16 years ago
#99 closed defect (duplicate)
r.resamp.interp fails for bicubic and bilinear interpolation
| Reported by: | cmbarton | Owned by: | |
|---|---|---|---|
| Priority: | critical | Milestone: | 6.3.0 |
| Component: | Default | Version: | unspecified |
| Keywords: | Cc: | ||
| CPU: | Unspecified | Platform: | Unspecified |
Description
I just found out that r.resamp.interp fails for both bicubic and bilinear interpolation. It makes maps with all NAN values. I used the new NC data set and produced a set of random elevation points (raster and vector), then tried to use these in r.resamp.interp. The nearest neighbor routine worked, but the others did not. I tried the original raster point map and also tried one that I converted to a CELL map. Neither gave usable results. FWIW, I got the same result using r.bilinear.
I'm having a very difficult time putting together a class on interpolation using GRASS today. v.surf.bspline does not work, 2 of the 3 methods in r.resamp.interp do not work. r.bilinear does not work. Pretty bad press.
Michael
Duplicated ticket, see #98.