DXF Exporting problems
Les
curves into little lines. Is there any way that i can change the
settings on the export filter? Or anyway to get a new export filter?
Does Corel make differnet ones? I only have the option of exporting, no
options for curves or resolution. I can not use any other format unless
it is a autocad format. HPGL wont work for the program i'm using. Any
help would be much appreciated.
Chris Allen
Jerry Sanderson [C_Tech]
>I am having problems with Corel exporting my drawings and turning the
>curves into little lines. Is there any way that i can change the
>settings on the export filter? Or anyway to get a new export filter?
Unfortunately, no. As long as you're running version 8.433, that's as
good as it gets (and I don't think the DXF filter is any different in
that respect from the initial release).
Jerry
C_Tech Volunteer
Neil Warnock
>I am having problems with Corel exporting my drawings and turning the
>curves into little lines. Is there any way that i can change the
>settings on the export filter? Or anyway to get a new export filter?
>options for curves or resolution. I can not use any other format unless
>it is a autocad format. HPGL wont work for the program i'm using. Any
>help would be much appreciated.
>Chris Allen
>
I don't think DXF format allows for curves. They are called "polylines" and
are made up from a series of straight lines which give the appearance of a
curve.
I don't think there's any way to alter the settings for how many lines it
uses to reproduce the curve.
Neil
Dan Taylor
used to ask a couple of questions about accuracy and such. Maybe Corel
didn't want to put in the resources in upkeeping it.
I'm doing some site plan stuff that I considered sending back to CAD but the
export was too rough on the curves.
Dan
Tom Klos
gets in a draw program. The one they had before had a lot more options, but
was very inaccurate and unpredictable. I've been searching for years for a
way to get vector curves and arcs from Draw into Cad accurately and so far
have not turned up with much. The best thing I have found is a program
called "cadmover" from http://www.kandusoftware.com/ This is a very good
file converter for about $500.00 It can convert .DXF, .DWG, .EPS, .IGS, .DS2
and other common Cad formats. I have personally not been able to convince
my Boss that this is a worth $500 and so I continue to produce sloppy work.
The only work around I have is to select all the points in the arc or curve
segments with the shape tool and hit the + key a bunch of times before
exporting. In the meantime I'm continuing to look for a "graphics friendly
Cad program" or "Cad friendly Graphics program". If you find a solution,
please let us know.
Tom
Keith Graves
.DXF format does not support bezier curves.
All of the curves in .DXF format from any source
are rendered as straight lines.
Tom Klos
Cad program can open a .DXF without losing the live arcs and splines (even
turbocad) I don't know why none of the draw programs can. Deneba's Canvas
looks like it will when you see the options in export box, but like so many
things in Canvas it doesn't really work.
Keith Graves wrote in message <3729d703.0@cnews>...
thecanv...@my-dejanews.com
"Tom Klos" <tom...@llbco.com> wrote:
> .DXF format does support curves (polylines, splines, and arcs) almost any
> Cad program can open a .DXF without losing the live arcs and splines (even
> turbocad) I don't know why none of the draw programs can. Deneba's Canvas
> looks like it will when you see the options in export box, but like so many
> things in Canvas it doesn't really work.
>
Tom, It's unfortunate that blanket statements like this get posted without
the benefit of the background knowledge needed to make it credible.
Both ASCII and binary DXF files contain a complete description of AutoCAD
drawings. Because much of the data in an AutoCAD drawing does not have an
equivalent object type in other programs, the Drawing Interchange Binary
(DXB) file format is provided, which creates a simpler geometric description
of the drawing. This means that the splines (curves) in AutoCAD get converted
to polygons (short line segments) when saved as DXF whether it's DXF in
AutoCAD or DXF in Canvas or any other program. The AutoCAD file format is
proprietary to Autodesk just as the Canvas file format is proprietary to
Deneba. They can exchange files through DXF but only through the limits of
DXF's geometric description.
If you can be a bit more specific about the so many things in Canvas that
don't really work I will be able to help you or at least give it a shot. It's
not too easy to answer blanket statements like the one you made.
Dave Rumfelt
Canvas Knowledge Specialist
The Canvas Expert Consulting
www.TheCanvasExpert.com
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thecanv...@my-dejanews.com
"Tom Klos" <tom...@llbco.com> wrote:
> .DXF format does support curves (polylines, splines, and arcs) almost any
> Cad program can open a .DXF without losing the live arcs and splines (even
> turbocad) I don't know why none of the draw programs can. Deneba's Canvas
> looks like it will when you see the options in export box, but like so many
> things in Canvas it doesn't really work.
Hi Tom,
It's really unfortunate that blanket statements like this get posted without
the benefit of understanding why things work the way that they do to back it
up.
The DXF format is a "catch all" format like TIFF without an industry
standard. Every program that saves as DXF has it's own "flavor" of DXF and
since it continually evolves, programs that import DXF have to continually
revamp for each little change. Canvas does not change the information in DXF
that is written by the program that creates it. What you see in Canvas is
what the other guy spits out.
Both ASCII and binary DXF files contain a complete description of an AutoCAD
drawing. Because much of the data in an AutoCAD drawing does not have an
equivalent object type in other programs, the Drawing Interchange Binary
(DXB) file format is provided, which creates a simpler geometric description
of the drawing. This part of the description is nonproprietary and is where
the curves change from "splines" to "polygons."
Not having access to proprietary format information means that bezier and
draw based programs must save in the binary (DXB) flavor of DXF in order to
put their objects into AutoCAD.
Please feel free to describe to me at length all of those many other things in
Canvas that don't really work. I will be more than happy to help you make more
informed blanket statements in the future.
If you truly aren't as narrow minded as you appear to be, you will download
the fully functional try-before-you-buy version of Canvas 6 from Deneba's web
site at www.deneba.com and give it a spin for 30 days. This could help clear
up some of the misconceptions that you appear to be holding about Canvas.
Please let me know if I can help you with any questions or concerns that you
may have once you give Canvas 6 a test drive. I am always more than happy to
help.
Sincerely,
p...@fliuk.com
> I am having problems with Corel exporting my drawings and turning the
> curves into little lines. Is there any way that i can change the
> settings on the export filter? Or anyway to get a new export filter?
> Does Corel make differnet ones? I only have the option of exporting, no
> options for curves or resolution. I can not use any other format unless
> it is a autocad format. HPGL wont work for the program i'm using. Any
> help would be much appreciated.
> Chris Allen
Paul