void OEColorSet(OEColor &, double r, double g, double b) void OEColorSet(OEColor &, double r, double g, double b, double a)
Sets a color with the specified color components that are mapped into the internal representation in the range [0, 255].
- r, g, b
- The red, green and blue components of the color. These numbers have to be in the range [0.0, 1.0]. Setting a color to be opaque black is equivalent to OEColorSet (0.0, 0.0, 0.0).
- The alpha value defines the transparency of a color and can be represented by a float value in the range [0.0, 1.0]. An alpha value of 1.0 means that the color is completely opaque and an alpha value of 0.0 means that the color is completely transparent. If the alpha value is not specified, then a completely opaque color is created.
The components of the color are always clamped into the range [0, 255] that is the internal representation of the color.