Dot Patterns
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The dot-patterns which are the "colors" for face fills, for shading, and for wide lines in black-and-white printer and raster output (if SHAPE patterns are selected in preference to those supplied by the printer driver), are shown below. The patterns comprise two series of dot-patterns of increasing density with shade numbers 0-15; the choice between them is made in the Print or Raster File dialogs (File menu).

The fine series is recommended for 9-pin or other low resolution dot-matrix plotting, for very small drawings done at high resolution, or for raster files which will be shown on a low-resolution screen. The coarse series contains patterns more like the half-tone screening used in printing. It is appropriate for gray tones and shading in high-resolution dot-matrix plotting. Actually, for shading with 32 zones, there are 32 patterns in the coarse series, only half of which are shown in Figure IV-1. The fine series has only 16 unique patterns even if the number of shading zones is 32, although this could be changed in the SCRPTR file (see Direct Modification of Files).

patterns