C C Put special values in a roughly circular area. C C Compute viewport parameters. For each of the four plots, use a different mapping function and C create a different background. C C Polar coordinates. IF C C Initialize the drawing of the contour plot.
C C Increase the line width for labelled levels and turn off the area C identifiers for all levels.
C between which shading is to be done. C C Draw the contour plot. C C Compute and print statistics for the plot and label it. XINP and YINP are assumed to be C the longitude and latitude, in degrees, of a point on the globe. 3 implies an orthogonal, but unequally-spaced mapping.