Contour (iso-line) maps are used extensively by the Meteorological Office for both routine and research tasks. The techniques employed in a new FORTRAN subroutine (CMAP) for drawing such maps are described. The algorithm ...

The theoretical basis for two alternative methods of structuring and then contouring 2D and 3D seismic data with faults is described. Both rely on triangulation systems, but one is more suitable for small memory computers, ...

In recent months the pace of standards development for computer graphics has quickened. One standard has been adopted, accepted, and has already demonstrated its effectiveness. Another has now achieved the status of Draft ...