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PLGCOL0A

NAME

plgcol0a - Returns 8-bit RGB values and double alpha value for given color from color map0.

SYNOPSIS

plgcol0a(icol0, r, g, b, a)

DESCRIPTION

Returns 8-bit RGB values (0-255) and double alpha value (0.0 - 1.0) for given color from color map0 (see the PLplot documentation). Values are negative if an invalid color id is given.

This function is used in example 30.

ARGUMENTS

icol0 (PLINT, input)

Index of desired cmap0 color.

r (PLINT *, output)

Pointer to 8-bit red value.

g (PLINT *, output)

Pointer to 8-bit green value.

b (PLINT *, output)

Pointer to 8-bit blue value.

a (PLFLT *, output)

Pointer to PLFLT alpha value.

AUTHORS

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.

SEE ALSO

PLplot documentation at http://plplot.sourceforge.net/resources.

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