debian man page for plscmap1la

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)