1PLGCOLBGA(3plplot)                PLplot API                PLGCOLBGA(3plplot)
2
3
4

NAME

6       plgcolbga  - Returns the background color (cmap0[0]) by 8-bit RGB value
7       and PLFLT alpha transparency value
8

SYNOPSIS

10       plgcolbga(r, g, b, alpha)
11

DESCRIPTION

13       Returns the background color (cmap0[0]) by 8-bit RGB  value  and  PLFLT
14       alpha transparency value.
15
16       This function is used in example 31.
17

ARGUMENTS

19       r (PLINT_NC_SCALAR(3plplot), output)
20              Returned value of the red intensity in the range from 0 to 255.
21
22       g (PLINT_NC_SCALAR(3plplot), output)
23              Returned  value  of  the  green intensity in the range from 0 to
24              255.
25
26       b (PLINT_NC_SCALAR(3plplot), output)
27              Returned value of the blue intensity in the range from 0 to 255.
28
29       alpha (PLFLT_NC_SCALAR(3plplot), output)
30              Returned value of the alpha transparency in the range (0.0-1.0).
31
32

AUTHORS

34       Many developers (who  are  credited  at  http://plplot.org/credits.php)
35       have contributed to PLplot over its long history.
36

SEE ALSO

38       PLplot documentation at http://plplot.org/documentation.php.
39
40
41
42                                November, 2019              PLGCOLBGA(3plplot)
Impressum