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
- 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
1.0means that the color is completely opaque and an alpha value of
0.0means 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.