Re: solidworks2006 vs inventor11

Ken,

Kinda figured you did know, just a terminology thing.

I just know that I've never had a problem saving recent Solidworks files
into any older kernal file,,,yet.

Don't know about ACIS, but parasolid really only uses two types surfaces,
analytic, and algorithmic. Analytic covers several sub types, planar,
revolved, etc., and algorithmic covers the rest including most fillets. This
basic surface math hasn't changed much (if at all) over the years. What has
changed are the kernal level functions used to manipulate them.

Mark


"Ken" <k@xxxxxxxxxxxxxxxxxx> wrote in message
news:44fef783$1@xxxxxxxxxxxxxxxxx
Mark,
I know what SAT/Parasolid file formats are. I know the specific
modelers feature history is removed and that the result is a native rep of
the internally stored B-rep model. My point is, if an app using Parasolid
V18 saves a X_T file out to an earlier version, the risk is that some
geometry may have to be approximated or completely removed due to the
inability of an earlier Parasolid version to support it. The same is true
for ShapeManager as well as ACIS based products.

And "Neutral" was not what I wanted to use. I was looking for something
that meant translationless.

Being that they are geometry kernel models, there is no translation when
sending them to another app using the same kernel (unless it is a much
older
version). So it is more of a geometry "exchange". In fact, apps based on
the same kernel can often times directly open another apps files and get
to
it's geometry by directly reading the Parasolid stream from the file, and
it
is fast as there is no conversion.

Ken
"Mark Mossberg" <Poundsandspammers@xxxxxxxxxx> wrote in message
news:CKrLg.8286$yO7.6913@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Ken,

Neither .sat (ACIS) or .x_b/t (Parasolid) carry over feature
information.
They aren't neutral formats, they are kernal level geometry
descriptions.
All they contain is B-rep information, faces, vertices, boundary curves,
etc. You end up with a dumb solid.

Solidworks can read parasolid back to version 8, and acis back to
version
1.6. This seems to be the rule rather than the exception with CAD
software
these days. The only system that I know of that won't read older kernal
level files is U.G.. And they may have changed of late.

There will come a time when it may be an issue for I.V. though. I don't
think reading older versions comes for free. There must be at least a
minimal amount of coding necessary to maintain it.

Mark



"ken" <goaway@xxxxxxxxx> wrote in message
news:edl7u7$2uh$1@xxxxxxxxxxxxxxxxxx
The fact that Inventor reads/writes ACIS V7 files does no good when the
rest
of the industry is using ACIS V15. So if Autodesk developed
Shapemanager
beyond the capabilities that existed when they took the source code
(V7),
and Spatial developed ACIS beyond the capabilities of V7, then any app
using
a newer version of ACIS and the current version of Inventor must
perform
a
conversion to render the internally stored model back to a V7 format
model.
What do you think happens with any features that required the newer
version
to exist??? That is not a neutral geometry transfer!.

Ken
"MM" <markm@xxxxxxxxxx> wrote in message
news:aOnLg.6178$tU.1117@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Ken,

Actually, Inventor will read and write standard ACIS version 7 .sat
files.
We have a vendor in the U.K. that's using it.

We also have a new client that's currently using Solid Edge, they're
switching over to Solidworks. Not because of capability, but because
everyone they deal with uses Solidworks.

Mark


"ken" <goaway@xxxxxxxxx> wrote in message
news:edhcvu$qvb$1@xxxxxxxxxxxxxxxxxx
That's no choice! That's like saying "choose between the Cadillac
or
the
KIA". UGS Solid Edge V19 and SolidWorks 2006 is a choice. Both on
a
stable
and capable modeling kernel (Parasolid from UGS), both use a state
of
the
art 2D/3D constraint manager (D-cubed from UGS), and both backed by
companies/personnel who have been involved with 3D mechanical CAD
for
more
than 2 decades.

Inventor employs a modified version of the ACIS modeling kernel
which
is
not
used in any mid-high end CAD software. They are now responsible for
their
own development and do not have an open data model, so their is no
direct
model transfer format such as their is with Parasolid (X_T, X_B).
Inventor
is behind both Solid Edge and SolidWorks in maturity, and their
published
sales are a farce as they now bundle it with ACAD and most of the
seats
they
claim to have sold are still sitting on a customers shelf in an
unopened
box. Just ask if Inventor has PMI (Product Manufacturing
Information)
capability which allows annotation of a 3D model per ASME Y14.41
Product
Data Definition. Both Solid Edge V19 and SolidWorks 2006 do!

Ken
<jas.randhawa007@xxxxxxxxx> wrote in message
news:1157366734.802873.3690@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
hi,
i need to buy a 3d software for solid modelling. i have a
choice
between solidworks2006 & inventor11. so plz advise as to which
software
i should buy. also plz give some points to support your opinion.













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Relevant Pages

  • Re: OT: Because Synchronous Technology is boring
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  • Re: OT: Because Synchronous Technology is boring
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  • Re: Reading and writing older versions
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