Interface for system independent plotting
, by Jon F. Claerbout
I define a graphics coordinate interface (GI) to bridge the gap between application
programs and various plotting systems such as vplot, Sunview, X and postscript. The
principal activity is coordinate management. Users declare windows and coordinate
systems and it helps merging plots. Pictures expand isotropically to a bounding
rectangle whereas plots expand differentially to fill a rectangle of any aspect ratio.
A drawing for landscape mode is well displayed in portrait mode and vice versa. A tutorial
program illustrates Fortran in an interactive environment adjusting travel time plots
under Sunview and outputting hardcopy under Vplot.
STANFORD