Needed by at least view_maps.e
Filename, size of image (x and y), bit Position parameters for the point of view.
'view' 1024 1024 8 1500 40 40 0 -1 0 1 0 0 0 0 1 0 0 -1 0 0 -50000
- Line 1 is output filename (which will get pgm added). Image size x and y and bit depth (8 bit)
- Line 2 is focal length and (maybe) detector size
- Note from Bob ! use foclen ~ 1.D6/MAXLEN (LARGEST DIAMETER)
- 400,000 is good for a 1km object
- 2,000,000 is good for 500m object (Bennu)
- 1,500 is Vesta
- Lines 3-6 is a matrix for the position of the spacecraft
- Line 7