Color index 2 is for grid lines far from C Boulder, color index 3 is for geographical objects near Boulder, and C color index 4 is for geographical objects far from Boulder. Color C index 5 is used for that part of the earth which is not within the C circle around Boulder. Color index 6 is used for the star over C Boulder. The basic satellite-view projection is rotated clockwise by 75 C degrees so that the direction a little north of due west is toward C the top of the projection. We end up C looking roughly in the direction of Boulder.
C C Initialize the first area-map array.
C C Put the projection of the circle around Boulder into the area map. The information goes into edge group 1. The area inside the projected C circle is characterized as area 1 and the area outside the circle as C area 2. The edges will go in edge group 1. C C Add to the second area map the contour lines for the area near C Boulder.