crosshatch_poly

crosshatch_poly fills a polygon with slanted lines at a specified angle and separation.

Description

crosshatch_poly fills a polygon with slanted lines at a specified angle and separation. It is similar in concept to fill, except that the fill is a hatching, or just lines.

For example see the plot which was generated by the included file crosshatch_poly_test.m

It allows multiple overlapping hatching on different polygons, and can even be used to obtain a speckled affect. It has a fair number of options for different line styles, colors, widths, and background colors.

The one major limitation at present is that it can only be applied to convex polygons.

• MATLAB release: MATLAB 7.4 (R2007a)

[Olivier Planchon]

As documented, only convex shapes are supported.

[David Wozabal]

This seems to be a very nice function in principle.

However, I noticed that it stops working if the axis are on a different scale (in particular the angle of the hatching is always 90°, independent of the respective parameter).

EXAMPLE (modified from crosshatch_poly_test.m)
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x = 2 + [0 3 3 0];
y = 1 + [0 0 3 3];

%%%% SIMPLE EXAMPLE
figure(1)
[h,g] = crosshatch_poly(x*1000, y, 30, 0.25*1000, ...
'edgestyle', '-', 'edgecolor', 'b', 'edgewidth', 2, ...
'linestyle', '--', 'linecolor', 'r', 'linewidth', 1);
set(gca, 'xlim', [0 7*1000]);
set(gca, 'ylim', [0 7]);
axis square
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