| drawfillpolygon | graphics procedure |
| Syntax | drawfillpolygon (x, y : array 1 .. * of int, n : int, Color : int)
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| Description | The drawfillpolygon procedure is used to draw a filled polygon with n points. The polygon is described by the points (x(1), y(1)) to (x(2), y(2)) to (x(3), y(3)) and so on to (x(n), y (n)). The polygon will be drawn and filled with Color. To get an polygon outlined in a different color, use drawfillpolygon with the Color parameter set to the fill color and then call drawpolygon with the Color parameter set to the border color.
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| Example | This program will create a filled octagon and display it in color 1 and then outline it in color 3.
setscreen ("graphics")
var x : array 1..8 of int := init (100, 100, 135, 185,
220, 220, 185, 135)
var y : array 1..8 of int := init (100, 150, 185, 185,
150, 100, 65, 65)
drawfillpolygon (x, y, 8, 1)
drawpolygon (x, y, 8, 3)
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| Execute | |
| Details | The PC allows a maximum of 256 points. As well, drawfillpolygon can fail (due to lack of memory). If failure occurs, it will try to draw an outline of the polygon. If that also fails, it will not draw anything. The meaning of the Color number depends on the current palette. See the palette statement. The screen should be in a "graphics" mode. See the setscreen procedure for details. If the screen is not in a "graphics" mode, it will automatically be set to "graphics" mode.
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| See also | setscreen, maxx, maxy and the various draw… procedures.
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