Filltype's drawpen impact on dot function about asymptote

[ivankokan]

Hi! Here is the example for which I pointed some rendering (or general) issues:

unitsize(5mm, 0);
dotfactor = 10;

pen pens[] = {invisible, nullpen, black, red, green + opacity(0.7)};
filltype filltypes[] = {
  Fill, Fill(pink),
  FillDraw, FillDraw(pink), FillDraw(pink, yellow),
  Draw, Draw(yellow),
  NoFill,
  UnFill
};

for (int i = 0; i < pens.length; ++i) {
  label(format("%i", i), (-2, i), E, black);
  currentpen = pens[i];
  for (int j = 0; j < filltypes.length; ++j)
    dot((j, i), filltypes[j]);
}

shipout(bbox(0, FillDraw(blue, blue)));

test_dots.pdf

[ivankokan]

Very thin lines visible in cases when both currentpen and filltype's drawpen are valid were just a rendering issue. (One can get rid of such disabling "Smooth line art" option in Adobe Reader.)

I continue with the following code and the corresponding output:

unitsize(5mm, 0);
dotfactor = 10;

pen pens[] = {invisible, white + linewidth(0), black, red, green + opacity(0.7)};
filltype filltypes[] = {
  Fill, Fill(pink),
  FillDraw, FillDraw(pink), FillDraw(pink, yellow),
  Draw, Draw(yellow),
  NoFill,
  UnFill
};

for (int i = 0; i < pens.length; ++i) {
  label(format("%i", i), (-2, i), E, black);
  currentpen = pens[i];
  for (int j = 0; j < filltypes.length; ++j)
    dot((j, i), filltypes[j]);
}

shipout(bbox(0, FillDraw(blue, blue)));

test_dots.pdf

[ivankokan]

Pull request #55. Still WIP.

[ivankokan]

Hi, considering the mix of up-to three possible pens, I abandoned my old doubts for proper rendering (mentioned in opening comment).

However, the issue of rendering for non-positive radius is still valid, and #55 resolves that one.

Before:

After:

[ivankokan]

Resolved.