Subject:
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Re: Tools that output SVG?
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Newsgroups:
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lugnet.cad
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Date:
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Fri, 25 Sep 2009 15:52:04 GMT
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Viewed:
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9388 times
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In lugnet.cad, Michael Horvath wrote:
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Are there any LDraw tools that will output in SVG format?
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LDView has experimental SVG/PS/EPS snapshot support, but you have to set a
registry key for it to be enabled. Create the following DWORD registry key and
set it to 1:
HKEY_CURRENT_USER\Software\Travis Cobbs\LDView\GL2PSAllowed
Once you have done that, SVG, EPS, and PS show up as file types in the Save
Snapshot dialog. There are some serious problems, though:
- LDView takes a long time to generate the files, and there is no feedback while this is going on. It just appears that LDView is locked up.
- The files often render incorrectly if antialiasing is enabled. This is due to problems with the renderers, not the files, but it doesn’t change the fact that they end up looking bad.
- The files produced are monstrously big. For example, CAR.dat produces a 9.9MB SVG file (11MB with edges enabled).
- Related to above item, the files take a very long time to render. The CAR.svg file I generated (without edges) took 9 seconds to render in Firefox on a 2.66GHz Core i7 computer. GIMP 2.6 took 7 seconds and produced essentially useless results due to its antialiasing.
(I just noticed a bug when this feature is enabled. If you save an SVG
snapshot, then do it again, it lists <model>.svg as the filename, but has PNG
selected as the file type. You have to manually switch the file type back to
SVG each time you do a snapshot save. Sometimes it also switches the filename
to <model>.png.)
At least one LDView user is using this to produce high-quality part images. The
file size problem isn’t as bad when rendering parts, but even 3001.dat (brick
2x4) generates a 605KB file with edges enabled and fairly standard other
settings.
--Travis
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