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color rgbaf
Chris Petersen edited this page Oct 16, 2014
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1 revision
color-rgbf returns a color made from four components (rgb and transparency)
| Parameter | Description |
|---|---|
| r | Red channel value (0 is black, 1 is maximum red) |
| g | Green channel value (0 is black, 1 is maximum green) |
| b | Blue channel value (0 is black, 1 is maximum blue) |
| a | Alpha channel value (0 is most transparent, 1 is completely solid) |
Example 1: Return the color Papayawhip (255, 239, 213) with 25% transparency
> (define Papayawhip (color-rgbaf 1.0 0.937 0.835 0.75))
> (color-alpha Papayawhip)
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