name&dimensionality 
kind 
in/out 
description 




nside 
I4B 
IN 
the
parameter of the map. 
v1(3) 
DP 
IN 
cartesian vector pointing at the triangle first vertex. 
v2(3) 
DP 
IN 
cartesian vector pointing at the triangle second vertex. 
v3(3) 
DP 
IN 
cartesian vector pointing at the triangle third vertex. 
listpix(0:*) 
I4B/ I8B 
OUT 
the index for all pixels enclosed in the triangle. Make sure that the size of the array is big enough to contain all pixels. 
nlist 
I4B/ I8B 
OUT 
The number of pixels listed in listpix. 
nest (OPTIONAL) 
I4B 
IN 
The pixel indices are in the NESTED numbering scheme if nest=1, and in RING scheme otherwise. 
inclusive (OPTIONAL) 
I4B 
IN 
If set to 1, all the pixels overlapping
(even partially)
with the triangle are listed, otherwise only those whose
center lies within the triangle are listed. 