surface_triangle
call surface_triangle( v1, v2, v3, surface )
| name&dimensionality | kind | in/out | description |
|---|---|---|---|
| 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. |
| surface | DP | OUT | surface of the triangle in steradians. |
Returns the surface in steradians of the triangle defined by the octant (x,y,z>0) : 1.5707963267948966
Version 3.11, 2013-04-24