NAME¶
plscol0a - Set 8-bit RGB values and double alpha transparency value for
given cmap0 color index
SYNOPSIS¶
plscol0a(
icol0,
r,
g,
b,
alpha)
DESCRIPTION¶
Set 8-bit RGB value and double alpha transparency value for given cmap0 (see the
PLplot documentation) index. 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.
ARGUMENTS¶
- 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.
- alpha (PLFLT, input)
- double value (0.0-1.0) representing the alpha transparency value of the
color.
AUTHORS¶
Many developers (who are credited at
http://plplot.sourceforge.net/credits.php)
have contributed to PLplot over its long history.
SEE ALSO¶
PLplot documentation at
http://plplot.sourceforge.net/documentation.php.