Add Fill Patterns

Fill Pattern() sets the pattern for filled areas.

Matrix Example

Specify a mask (a matrix of values between 0 and 1) or an image. Each value in the matrix creates a pixel.

win = New Window( "Example",

	Graph Box(

		Fill Pattern(

			[1 0.5 0 0, 0.5 0 0 1, 0 0 1 0.5, 0 1 0.5 0]

		);

		Polygon( [10 30 90], [88 22 44] );

	)

);

Named Pattern Example

Specify a name in quotation marks that corresponds to a pattern shown in Table 12.3.

win = New Window( "Named Pattern Example",

	Graph Box(

		Fill Pattern( "vertical light" );

		Polygon( [10 30 90], [88 22 44] );

	)

);

Graphic Example

Specify an image in quotation marks. If the image is not installed on the viewer’s computer, question marks appear in the shape.

win = New Window( "Graphic Example",

	Graph Box(

		Fill Pattern( Open( "$SAMPLE_IMAGES/pi.gif", "gif" ) );

		Polygon( [10 30 90], [88 22 44] );

	)

);

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