Hi all,
just a little problem about the PNG export :
the SVG src : http://florentgabriel.ouvaton.org/temporaire/Verre.svg
and the smally generated PNG : http://florentgabriel.ouvaton.org/temporaire/Verre.svg.png
There is a problem with the stroke of the glass: at this small size, it seems to be less black than the parasol's stroke...
Does anyone know a way to solve this problem ?
Florent
There is a problem with the stroke of the glass: at this small size, it seems to be less black than the parasol's stroke...
This is because in the parasol, each stroke is done twice. You have the black outline of the entire parasol and then you have each segment with its own outline which overlays the first outline. Even though the strokes have the same width and are exactly on top of one another, the fact that each stroke has its own antialiasing fringe and these fringes add together results in the stroke appearing thicker than it should at small sizes. This is a common problem for most vector editors with antialiased display, not only Inkscape; for example Adobe SVG plugin also shows your file with the parasol outline darker than the glass if you zoom out far enough.
So, to fix it, you can either remove the double stroke (so that overlaying segments have only fill and no stroke) or export it at a larger size and then resize the bitmap.
On Thu, 8 Jul 2004, bulia byak wrote:
Date: Thu, 8 Jul 2004 20:20:18 -0300 From: bulia byak <buliabyak@...155...> Reply-To: inkscape-user@lists.sourceforge.net To: inkscape-user@lists.sourceforge.net Subject: Re: [Inkscape-user] A problem about the PNG export
There is a problem with the stroke of the glass: at this small size, it seems to be less black than the parasol's stroke...
This is because in the parasol, each stroke is done twice. You have the black outline of the entire parasol and then you have each segment with its own outline which overlays the first outline. Even though the strokes have the same width and are exactly on top of one another, the fact that each stroke has its own antialiasing fringe and these fringes add together results in the stroke appearing thicker than it should at small sizes. This is a common problem for most vector editors with antialiased display, not only Inkscape; for example Adobe SVG plugin also shows your file with the parasol outline darker than the glass if you zoom out far enough.
So, to fix it, you can either remove the double stroke (so that overlaying segments have only fill and no stroke) or export it at a larger size and then resize the bitmap.
Rather than working around it as suggested, would it be worth allowing users to disable antialiasing? (Should I file a Request for Enhancement?) I imagine the option to disable antialiasing could be quite useful when exporting to raster formats.
- Alan
Rather than working around it as suggested, would it be worth allowing users to disable antialiasing? (Should I file a Request for Enhancement?) I imagine the option to disable antialiasing could be quite useful when exporting to raster formats.
It won't help in this particular case, because this image will be ugly as hell without AA. But in general, yes, it may be useful. I think we have an RFE for wireframe and non-AA modes for screen rendering; once we have them, adding the same capabilities to export will be trivial.
On Fri, 2004-07-09 at 13:19, bulia byak wrote:
It won't help in this particular case, because this image will be ugly as hell without AA. But in general, yes, it may be useful. I think we have an RFE for wireframe and non-AA modes for screen rendering; once we have them, adding the same capabilities to export will be trivial.
FWIW, non-antialiased rendering is also good for high-resolution output (e.g. for print); if the resolution is sufficiently high, the artifacts from antialiasing can sometimes make the output look slightly worse.
-mental
There is a problem with the stroke of the glass: at this small size, it seems to be less black than the parasol's stroke...
So, to fix it, you can either remove the double stroke (so that overlaying segments have only fill and no stroke) or export it at a larger size and then resize the bitmap.
Thank you.
I've just removed the seconds strokes. But there's an other problem: the superposing adjacents sides of "triangles" of the parasol ...
All in all, i've just doing what bulia said; export it at a larger size and then, resize the bitmap to the needed size, and now it's ok.
Florent
bulia byak wrote:
I've just removed the seconds strokes. But there's an other problem: the superposing adjacents sides of "triangles" of the parasol ...
Why can't you move the triangles _under_ the black outline?
The triangles under this black outline has been remove ! You can see this at http://florentgabriel.ouvaton.org/temporaire/Verre.svg
But, on the small bitmap http://florentgabriel.ouvaton.org/temporaire/Verre.png you can see that the outline of the totaly parasol is clean. But not the adjacents sides of each triangles, certainly because each one is superpose on an other one.
Is there a way to "remove" (maybe "hide" is a better word) only one line of a shape ?
Florent
But, on the small bitmap http://florentgabriel.ouvaton.org/temporaire/Verre.png you can see that the outline of the totaly parasol is clean. But not the adjacents sides of each triangles, certainly because each one is superpose on an other one.
Why can't you have separate stroke-less triangles and separate stroke-only black spokes overlaying them?
Is there a way to "remove" (maybe "hide" is a better word) only one line of a shape ?
Oups, sorry, I've just find the option "Split path between two non-endpoint nodes", it's just what I need to remove one of the twice lines... Inkscape is really great !
Now my bitmap is right.
Florent
participants (4)
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Alan Horkan -
bulia byak -
Florent -
MenTaLguY