NAME
plgcolbga - Returns the background color (cmap0[0]) by 8-bit RGB value and PLFLT alpha transparency value
SYNOPSIS
plgcolbga(r, g, b, alpha)
DESCRIPTION
Returns the background color (cmap0[0]) by 8-bit RGB value and PLFLT alpha transparency value.
This function is used in example 31.
ARGUMENTS
- r (PLINT_NC_SCALAR(3plplot), output)
-
Returned value of the red intensity in the range from 0 to 255.
- g (PLINT_NC_SCALAR(3plplot), output)
-
Returned value of the green intensity in the range from 0 to 255.
- b (PLINT_NC_SCALAR(3plplot), output)
-
Returned value of the blue intensity in the range from 0 to 255.
- alpha (PLFLT_NC_SCALAR(3plplot), output)
-
Returned value of the alpha transparency in the range (0.0-1.0).
AUTHORS
Many developers (who are credited at http://plplot.org/credits.php) have contributed to PLplot over its long history.
SEE ALSO
PLplot documentation at http://plplot.org/documentation.php.