Michael Fabain Dirks
60 lines
1.7 KiB
HTML
60 lines
1.7 KiB
HTML
<html>
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<title>Blitz3D Docs</title>
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<link rel=stylesheet href=../css/commands.css type=text/css>
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<body>
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<h1>ScaleImage image,xscale#,yscale#</h1>
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<h1>Parameters</h1>
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<table>
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image = file handle variable to a previously loaded image
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<br />
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xscale# = the amount to scale the image horizontally
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<br />
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yscale# = the amount to scale the image vertically
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<h1>Description</h1>
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Use this command to rescale an image to a new size using a floating point percentage (1.0 = 100%, 2.0 = 200%, etc). Using a negative value perform image flipping. You must've previously loaded the image with LoadImage or LoadAnimImage.
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This is NOT intended for REAL TIME scaling of images! Precalculate your images before running your program, or you will likely see massively slow renderings of graphics.
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<h1><a href=../2d_examples/ScaleImage.bb>Example</a></h1>
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; ScaleImage example
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; Set Graphics Mode
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Graphics 800,600,16
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; Randomize the random seed
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SeedRnd MilliSecs()
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; Load an image to tile (your location might vary)
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gfxBall=LoadImage("C:Program FilesBlitz Basicsamplesall.bmp")
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; Scale it randomly from 50% to 150% both x and y
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ScaleImage gfxBall,Rnd(-2.0,2.0),Rnd(-2.0,2.0)
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; Wait for ESC to hit
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While Not KeyHit(1)
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DrawImage gfxball,Rnd(800),Rnd(600)
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VWait
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Wend
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</td>
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</tr>
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</table>
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<br>
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<a target=_top href=../index.htm>Index</a><br>
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<br>
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Click <a href=http://www.blitzbasic.co.nz/b3ddocs/command.php?name=ScaleImage&ref=comments target=_blank>here</a> to view the latest version of this page online</body>
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</html>
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