Reference for Processing version 1.2. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.
| Name | alpha() |
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|---|---|---|---|
| Examples |  noStroke(); color c = color(0, 126, 255, 102); fill(c); rect(15, 15, 35, 70); float value = alpha(c); //Sets "value" to "102" fill(value); rect(50, 15, 35, 70); |
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| Description | Extracts the alpha value from a color. | ||
| Syntax | alpha(color) |
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| Parameters |
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| Returns | float | ||
| Usage | Web & Application | ||
| Related | green() red() blue() hue() saturation() brightness() |
