Spherical Triangle Plot Script

This script can draw all 8 possible spherical triangles: regular, notch, fish, star and their respective inverses. The user must input three vectors describing the cornerpoints of the triangle, this can be done in both Cartesian and Spherical components. The script assume inner area and inner angular distances (<180 deg) by default. The 'Outer' option allows the user to set individually the angular distance (of the opposing segment) to the their complements of corresponding great circle. The 'Inverse' option will set the program to hatch the outer area instead.