Turns 3D cross-hatching On or Off.
SETHATCH(win, hatch, interval)
win |
- |
Optional. A Window, defaults to the current Window. |
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hatch |
- |
An integer, the 3D cross-hatch mode:
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interval |
- |
Optional. The cross-hatch spacing. Defaults to 1. |
Nothing.
(x, y) = fxyvals(-2, 2, 0.1, -2, 2, 0.1);
cos(x*y);setplottype(4);hot();sethatch(0);
creates a shaded 3D plot of cos(x*y) without cross-hatching.
(x, y) = fxyvals(-2, 2, 0.1, -2, 2, 0.1);
W1: cos(x*y);setplottype(4);hot();sethatch(0);
W2: deriv(w1)
moveto(w1);shadewith(w2);pon;
creates a shaded 3D plot of cos(x*y) without cross-hatching using the derivative of the surface as the lighting model.
(x, y) = fxyvals(-2, 2, 0.05, -2, 2, 0.05);
W1: cos(x*y);setplottype(4);plasma();sethatch(1);
W2: w1;plasma();sethatch(1, 4)
W3: w1;plasma();sethatch(2, 4)
W4: w1;plasma();sethatch(3, 4)
W1 contains c shaded 3D plot of cos(x*y) with the standard X and Y cross-hatching.
W2 sets the X and Y cross-hatch interval to 4.
W3 has X cross-hatching only with an interval of 4.
W4 has Y cross-hatching only with an interval of 4.
sethatch(0) or specifying a larger hatch interval is useful for high density 3D plots.