plscmap0a: Set cmap0 colors by 8-bit RGB values and PLFLT alpha transparency value
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plscmap0a: Set cmap0 colors by 8-bit RGB values and PLFLT alpha transparency value

plscmap0a ( r ,
  g ,
  b ,
  alpha ,
  ncol0 );
 

Set cmap0 colors using 8-bit RGB values (see the section called “Color Map0”) and PLFLT alpha transparency value. This sets the entire color map – only as many colors as specified will be allocated.

r (PLINT_VECTOR, input)

A vector containing unsigned 8-bit integers (0-255) representing the degree of red in the color.

g (PLINT_VECTOR, input)

A vector containing unsigned 8-bit integers (0-255) representing the degree of green in the color.

b (PLINT_VECTOR, input)

A vector containing unsigned 8-bit integers (0-255) representing the degree of blue in the color.

alpha (PLFLT_VECTOR, input)

A vector containing values (0.0-1.0) representing the alpha transparency of the color.

ncol0 (PLINT, input)

Number of items in the r , g , b , and alpha vectors.

Redacted form: plscmap0a(r, g, b, alpha)

This function is used in examples 30.

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plscmap0: Set cmap0 colors by 8-bit RGB values  Home  plscmap0n: Set number of colors in cmap0