plscol0a - Set a given color from color map0 by 8 bit RGB value and double alpha value.
plscol0a(icol0, r, g, b, a)
Set a given color by 8-bit RGB value and double alpha value for color map0 (see the PLplot documentation). Overwrites the previous color value for the given index and, thus, does not result in any additional allocation of space for colors.
This function is used in example 30.
icol0 (PLINT, input)
Color index. Must be less than the maximum number of colors (which is set by default, by plscmap0n(3plplot), or even by plscmap0(3plplot)).
r (PLINT, input)
Unsigned 8-bit integer (0-255) representing the degree of red in the color.
g (PLINT, input)
Unsigned 8-bit integer (0-255) representing the degree of green in the color.
b (PLINT, input)
Unsigned 8-bit integer (0-255) representing the degree of blue in the color.
a (PLFLT, input)
double value (0.0-1.0) representing the alpha value of the color.
Geoffrey Furnish and Maurice LeBrun wrote and maintain PLplot. This man page was automatically generated from the DocBook source of the PLplot documentation, maintained by Alan W. Irwin and Rafael Laboissiere.
PLplot documentation at http://plplot.sourceforge.net/resources.