plscmap0a(3plplot) [debian man page]

PLSCMAP0A(3plplot)						    PLplot API							PLSCMAP0A(3plplot)

NAME

       plscmap0a - Set color map0 colors by 8-bit RGB values and  double alpha value.

SYNOPSIS

       plscmap0a(r, g, b, a, ncol0)

DESCRIPTION

       Set  color  map0  colors using 8-bit RGB values (see the PLplot documentation)  and floating point alpha value.	This sets the entire color
       map -- only as many colors as specified will be allocated.

       This function is used in examples 30.

ARGUMENTS

       r (PLINT *, input)
	      Pointer to array with set of unsigned 8-bit integers (0-255) representing the degree of red in the color.

       g (PLINT *, input)
	      Pointer to array with set of unsigned 8-bit integers (0-255) representing the degree of green in the color.

       b (PLINT *, input)
	      Pointer to array with set of unsigned 8-bit integers (0-255) representing the degree of blue in the color.

       a (PLFLT *, input)
	      Pointer to array with set of PLFLT values (0.0 - 1.0) representing the transparency of the color.

       ncol0 (PLINT, input)
	      Number of items in the r, g, b, and a arrays.

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.

								   August, 2012 						PLSCMAP0A(3plplot)

PLSCMAP1LA(3plplot)						    PLplot API						       PLSCMAP1LA(3plplot)

NAME

       plscmap1la - Set color map1 colors using a piece-wise linear relationship

SYNOPSIS

       plscmap1la(itype, npts, pos, coord1, coord2, coord3, coord4, rev)

DESCRIPTION

       This  is a version of plscmap1l(3plplot) that supports alpha transparency. It sets color map1 colors using a piece-wise linear relationship
       between position in the color map (from 0 to 1) and position in HLS or RGB color space (see the PLplot documentation) with alpha value (0.0
       - 1.0). It may be called at any time.

       This function is used in example 30.

ARGUMENTS

       itype (PLBOOL, input)
	      true: RGB, false: HLS.

       npts (PLINT, input)
	      number of control points

       pos (PLFLT *, input)
	      position for each control point (between 0.0 and 1.0, in ascending order)

       coord1 (PLFLT *, input)
	      first coordinate (H or R) for each control point

       coord2 (PLFLT *, input)
	      second coordinate (L or G) for each control point

       coord3 (PLFLT *, input)
	      third coordinate (S or B) for each control point

       coord4 (PLFLT *, input)
	      fourth coordinate, the alpha value for each control point

       rev (PLBOOL: *, input)
	      reverse flag for each control point. (rev[i] refers to the interpolation interval between the i and i + 1 control points).

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.

								   August, 2012 					       PLSCMAP1LA(3plplot)