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Why isn't there a possibility to import 3d-cad-data (surfaces and(or
solids) into povray with typical cad-formats like step, iges, vda, sat,
parasolids ?
chris
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chris wrote:
>
> Why isn't there a possibility to import 3d-cad-data (surfaces and(or
> solids) into povray with typical cad-formats like step, iges, vda, sat,
> parasolids ?
>
> chris
It is possible if you are willing to write a conversion program :)
About the only conversion program that I know of that might do this
is polytrans but it ain't cheap http://www.okino.com/conv/conv.htm
--
Ken Tyler - 1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
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> It is possible if you are willing to write a conversion program :)
I see the problem but it is an important feature. A lot of things you
fight hours or days with (in povray or moray) are done in seconds with
good cad-systems. No question: the very good ones are too expensive, but
there are also cheaper ones that work pretty good and often you have
parttime-access to cad-systems, sometimes you have an old one at home.
Beside this: there are a lot of companies who put their products in
iges, step format... in the web.
It is a pity, that it is so complicated to render geometry that was
generated with cad: you first have to model, then mesh the part in a
different program , export the mesh, convert the format to a
3DWin-format, import with the correct feature-angles to 3DWIN to create
UDO's, and then the files are about 20MB.....and on the other side you
have the complete and correct geometry-descrption in your cad-system :-)
chris
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There are lots of features that would be nice in povray, but not everything
can be achieved with a reasonable amount of efforts, and the resources
available are quite limited. Not everything can be done, so it's more
important to concentrate in the essential parts.
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
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Warp wrote:
>
> There are lots of features that would be nice in povray, but not everything
> can be achieved with a reasonable amount of efforts, and the resources
> available are quite limited. Not everything can be done, so it's more
> important to concentrate in the essential parts.
Just adding support for IGES would cost someone a lot of money. The
latest release of the spec for the IGES standard will run you a few
thousand dollars and you still have to go through the efforts of
making it compatible with POV-Ray.
--
Ken Tyler - 1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
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Not all the good ones are real expensive!
I was looking around last night on the web and found the following
company:
http://www.cadopia.com/
They offer an AutoCAD14-like CAD package for free download. It's also
apparently open source and uses .dwg as its native file format.
Tim Glover
tgl### [at] nettally com
On Sun, 09 Apr 2000 17:16:04 +0200, chris <chr### [at] yahoocom>
wrote:
>> It is possible if you are willing to write a conversion program :)
>
>
>I see the problem but it is an important feature. A lot of things you
>fight hours or days with (in povray or moray) are done in seconds with
>good cad-systems. No question: the very good ones are too expensive, but
>there are also cheaper ones that work pretty good and often you have
>parttime-access to cad-systems, sometimes you have an old one at home.
>Beside this: there are a lot of companies who put their products in
>iges, step format... in the web.
>It is a pity, that it is so complicated to render geometry that was
>generated with cad: you first have to model, then mesh the part in a
>different program , export the mesh, convert the format to a
>3DWin-format, import with the correct feature-angles to 3DWIN to create
>UDO's, and then the files are about 20MB.....and on the other side you
>have the complete and correct geometry-descrption in your cad-system :-)
>
>chris
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from the first view: looks not bad. do you use it ?
chris
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chris wrote:
>
> Hy
> from the first view: looks not bad. Do you use it ?
> chris
A lot of people are using it and it is becoming somewhat respected
in the CAD industry. It has no where near the full power of programs
like AutoCad but for the price it gives a lot of bang for the buck.
Many claim it is easier to use and understand than AutoCad which
is good for those new to using CAD programs.
I would recommend it if you can't afford to buy a full featured
professional CAD program.
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
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