1PLGCOL0A(3plplot)                 PLplot API                 PLGCOL0A(3plplot)
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NAME

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

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

13       Returns 8-bit RGB values (0-255) and double alpha value (0.0 - 1.0) for
14       given  color  from  color  map0 (see the PLplot documentation).  Values
15       are negative if an invalid color id is given.
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17       This function is used in example 30.
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ARGUMENTS

20       icol0 (PLINT, input)
21              Index of desired cmap0 color.
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23       r (PLINT *, output)
24              Pointer to 8-bit red value.
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26       g (PLINT *, output)
27              Pointer to 8-bit green value.
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29       b (PLINT *, output)
30              Pointer to 8-bit blue value.
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32       a (PLFLT *, output)
33              Pointer to PLFLT alpha value.
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AUTHORS

37       Geoffrey Furnish and Maurice LeBrun wrote and  maintain  PLplot.   This
38       man  page  was  automatically  generated from the DocBook source of the
39       PLplot  documentation,  maintained  by  Alan  W.   Irwin   and   Rafael
40       Laboissiere.
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SEE ALSO

43       PLplot documentation at http://plplot.sourceforge.net/resources.
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47                                  July, 2010                 PLGCOL0A(3plplot)