Figure Asymptote opacity -- 013

Posted on 2011-01-01 Edited on 2025-04-20 In Tech , Programming , Asymptote , Examples 2D , Opacity

An Asymptote code and the generated picture opacity--013.

🔗This picture comes from the Asymptote gallery of topic opacity

Figure opacity 013 Generated with Asymptote

Show opacity/fig0130.asy on Github.
Generated with Asymptote 3.00-0.
Categories : Examples 2D | Opacity
Tags : #Opacity

import edvenn_pi;

// Exclusion: Produces an effect similar to that of the Difference mode but lower
// in contrast. Painting with white inverts the backdrop color; painting
// with black produces no change.
string blend="Exclusion";

size(10cm,0);

path [] edvenn= EdVenn(4);
pen [] fillp= new pen[]{black, red, green, blue};
pen p=linewidth(1mm);

for (int i=0; i<4; ++i) {
  fillp[i]=fillp[i]+opacity(.5,blend=blend);
  filldraw(edvenn[i], fillpen=fillp[i], drawpen=linewidth((i+1)*mm/2));
 }

shipout(bbox(2mm,invisible),"pdf");