query_triangle finds the pixels within the given triangle in a selective way WITHOUT scanning all the sky pixels. The numbering scheme of the output list and the inclusiveness of the triangle can be changed
query_triangle , 256L, [1,0,0],[0,1,0],[0,0,1], listpix, nlist |
On return listpix contains the index of the (98560) pixels lying in the octant (x>0,y>0,y>0). The pixel indices correspond to the RING scheme with resolution 256.
Version 3.82, 2022-07-28