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9.18. Rendering the Canvas as PostScript
To get a copy of the Canvas as PostScript, use the postscript method. It will either return the PostScript output or, if the -file option is specified, put it in a file:
$postscript = $canvas->postscript( ); $canvas->postscript(-file => "ps.out");
The following options allow you to control the output of the PostScript:
- -colormap => \@array
- Specifies that each element in @array must be a valid PostScript command for setting color values (e.g., "1.0 1.0 0.0 setrgbcolor").
- -colormode => "color" | "gray" | "mono"
- Creates the PostScript in full color, grayscale ("gray"), or black and white ("mono").
- -file => filename
- Specifies the file in which to put the PostScript output.
- -fontmap => \@array
- Each element in @array is a two-element array that contains a font name and a point size. The font name should be a complete font name so Tk will parse it correctly (e.g., "-*-Helvetica-Bold-O-Normal--*-140-*").
- -height => size
- Sets the height of the area to print. The default height is the Canvas height.
- -pageanchor => "n" | "e" | "s" | "w" | "center"
- Indicates where the page should be placed over the positioning point specified by the -pagex and -pagey options.
- -pageheight => height
- Sets the height of the printed page. The Canvas image will be scaled to fit. height is any valid screen distance.
- -pagewidth => width
- Sets the width of the printed page. The Canvas image will be scaled to fit.
- -pagex => x
- Sets the coordinate for the x positioning point. Can be any valid screen distance.
- -pagey => y
- Sets the coordinate for the y positioning point. Can be any valid screen distance.
- -rotate => 0 | 1
- If 1, the page is rotated into a landscape orientation. Default is 0, which is portrait orientation.
- -width => size
- Sets the width of the Canvas area to be printed. Defaults to the width of the Canvas.
- -x => x
- Sets the left edge of the area to be printed (in Canvas coordinates). Default is the left edge of the window.
- -y => y
- Sets the top edge of the area to be printed (in Canvas coordinates). Default is the left edge of the window.
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| 9.17. Setting Keyboard Focus |  | 9.19. Scaling the Canvas |
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