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Re: polyfill on postscript: hairy with hairlines [message #76708 is a reply to message #76609]

Tue, 21 June 2011 14:22

Kenneth P. Bowman
Messages: 585
Registered: May 2000

Senior Member

In article
<f3d8e3f8-3fff-49f3-b1cf-63d04a7a24d5@28g2000pry.googlegroups.com>,
Ed Hyer <ejhyer@gmail.com> wrote:

> So, for a precision application, I resorted to the nuclear option of
> plotting each point with a POLYFILL, rather than leaving that up to
> CONTOUR, IMAGEMAP, etc.
>
> Got what I wanted in terms of precision, but the polygons in the
> PostScript file have hairlines around them. When the image is shrunk,
> the hairlines result in ugly aliasing.
>
> What bothers me most is that these lines are a particular shade of
> gray, that I didn't think was available when POLYFILL is called-- that
> is, it's not in the color table.
>
> Has anyone found a solution/workaround for this?
>
> --Edward H.

Are you using PS or PDF? On a Mac by any chance?

There seem to be some rendering issues with screen display
of PDFs on Macs (and possibly other systems).

The best solution I know of is to use an image instead of
line graphics. You can control the resolution of the image
and make it chunky or smooth, as you prefer.

Ken Bowman

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[Message index]

		polyfill on postscript: hairy with hairlines By: MarioIncandenza on Tue, 21 June 2011 14:08
		Re: polyfill on postscript: hairy with hairlines By: David Fanning on Wed, 22 June 2011 11:40
		Re: polyfill on postscript: hairy with hairlines By: MarioIncandenza on Wed, 22 June 2011 11:34
		Re: polyfill on postscript: hairy with hairlines By: Andy Heaps on Wed, 22 June 2011 07:10
		Re: polyfill on postscript: hairy with hairlines By: MarioIncandenza on Tue, 21 June 2011 15:34
		Re: polyfill on postscript: hairy with hairlines By: Kenneth P. Bowman on Tue, 21 June 2011 14:22

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