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:
$x = sequence 6;
$y = $x ** 2;
plscolbg (255,255,255); # Gives white bg
plvpor (0.15,0.85,0.1, 0.9);
plcol0 (0); # Does NOT give black, just gives nothing...
plline ($x, $y);