How do I get a black plot on a white background. I can get about any
color on a with background, except black. 'plcol0 (0)' does not work.
Why???
I'm using plplot (5.6.1) and perlDL. Here's my sampl code:
use PDL;
use PDL::Graphics::PLplot;
$x = sequence 6;
$y = $x ** 2;
plsdev ("xwin");
plscolbg (255,255,255); # Gives white bg
plinit ();
pladv (0);
plvpor (0.15,0.85,0.1, 0.9);
plwind (0.0,5.0,0.0,26.0);
plbox (0,0,0,0,"bcnst","bcnst");
plcol0 (0); # Does NOT give black, just gives nothing...
plline ($x, $y);
plend ();
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