| Author |
Message |
Teece
Guest
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 Posted:
Thu Jan 06, 2005 9:09 pm Post subject:
Please Help:I want to write files in a format that Solidwork |
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Hi,
I thought that this would be much easier than this has turned out to be.
Solidworks will import graphics files in many formats, such as ASIC (SAT) ,
STEP (AP203, AP214), Parasolid, to name a few. I have been searching for the
specifications for these standards so that I may write files for a parser
that I am building. However, I have found it very difficult to find the
specifications for the above standards.
For example, STEP is a family of standards under ISO 10303 with many parts.
Now the standard has been taken over by TC184/SC4. Just trying to find out
which part of STEP relates to is a nightmare and then one has to purchase
the correct spec, etc. Is AP 203 a spec by itself or is it covered under
10303-11 (part 11)? Who knows. Many of the links on the TC184/SC4 page are
either empty or dead.
Then there is ACIS and the SAT file format. I found that it is derived from
another standard called HOOPS, and where that comes from, I can't seem to
find out.
Why is it so difficult to find information concerning the above mentioned
file formats?
Thank You
Tom
tom_cip_11551@hotmail.com
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P.
Guest
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| Posted:
Thu Jan 06, 2005 9:26 pm Post subject:
Re: Please Help:I want to write files in a format that Solid |
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It is hard to find because you are not an insider and neither am I. You
almost have to be on the committees that make the standards.
HOOPS I think comes from ADesk.
It isn't enough to know how the standard works either. You then have to
figure out how your target software utilizes the standard. IGES is a
good example. |
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MM
Guest
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| Posted:
Thu Jan 06, 2005 11:03 pm Post subject:
Re: Please Help:I want to write files in a format that Solid |
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Teece,
Hoops is an OpenGL toolkit, from Tech Soft America, used to program graphics
displays. It's used (not owned) by Autodesk, Solidworks, PTC, and most other
3D CAD systems. It doesn't have anything to do with any geometry engine,
(ACIS, parasolid, Granite) other than the tesselation for shading.
As far as the other standards, good luck. You'll probably find it easier to
get ACIS and Parasolid info than STEP, (too many cooks in the kitchen).
Regards
Mark
" <tom_cip_11551@hotmail_NOSPAM_.com> wrote in message
news:-cOdna8GV6ZZ_0DcRVn-vg@giganews.com...
| Quote: | Hi,
I thought that this would be much easier than this has turned out to be.
Solidworks will import graphics files in many formats, such as ASIC (SAT)
,
STEP (AP203, AP214), Parasolid, to name a few. I have been searching for
the
specifications for these standards so that I may write files for a parser
that I am building. However, I have found it very difficult to find the
specifications for the above standards.
For example, STEP is a family of standards under ISO 10303 with many
parts.
Now the standard has been taken over by TC184/SC4. Just trying to find out
which part of STEP relates to is a nightmare and then one has to purchase
the correct spec, etc. Is AP 203 a spec by itself or is it covered under
10303-11 (part 11)? Who knows. Many of the links on the TC184/SC4 page are
either empty or dead.
Then there is ACIS and the SAT file format. I found that it is derived
from
another standard called HOOPS, and where that comes from, I can't seem to
find out.
Why is it so difficult to find information concerning the above mentioned
file formats?
Thank You
Tom
tom_cip_11551@hotmail.com
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Guest
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| Posted:
Fri Jan 07, 2005 2:27 am Post subject:
Re: Please Help:I want to write files in a format that Solid |
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IMHO, if SolidWorks is the only application you're trying to target,
then it may make sense to implement your translation bridge such that
it works if SolidWorks is installed alongside. Then you can use the
SolidWorks APIs to build up a model right inside SolidWorks rather than
going via an intermediate file format.
However, if files you must create, my first choices would be :
- For 3D BREP:
SAT / PS (it may be worthwhile to license the file i/o portions of
the kernels from ACIS or UGS rather than writing a parser from
scratch).
STEP : check out steptools.com or prostep.com - they have STEP SDKs
which will take the pain out of having to understand the ISO-10303
schemas and application protocols (APs) - trust me.
- For 3D visualization data :
STL/VRML
- For 2D vector data
DXF/DWG
HTH,
Vajrang. |
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