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In lugnet.cad, Andy Lynch wrote:
> Well, in the interests of sharing, as this community does so well, here's the
> basics of a simple LDraw viewer that I wrote in the Processing language about a
> year and a half ago. It is by no means complete, but it will display small
> models (if you edit the source to load the model, right near the beginning of
> the main code... no way to pick from a listing) Processing is so friendly that
> I was able to build this basic viewer in just a week or two, then life jumped in
> and took over all my time again, as usual.
>
> There's a good chance that I tapped some people on here or on the Processing.org
> forums to help with the math ack when I was working on it, so, sorry if I forget
> to mention, but it's been a long time since I worked on this...
>
> Here's the link to a little blurb about what I had written so long ago, with 2
> sample images:
> http://www.randommeme.com/mblog/post.cfm/ldraw-viewer-in-processing
>
> And here's the link to the post with the download file:
> http://www.randommeme.com/mblog/post.cfm/simple-ldraw-viewer-code-in-processing
>
> About the Processing Language:
> Processing runs in Java, and uses the same syntax, but (for me) it makes working
> with graphics a breeze!
> http://processing.org/
> From the website:
> Processing is an open source programming language and environment for people who
> want to program images, animation, and interactions. It is used by students,
> artists, designers, researchers, and hobbyists for learning, prototyping, and
> production. It is created to teach fundamentals of computer programming within a
> visual context and to serve as a software sketchbook and professional production
> tool.
>
> Enjoy.
> -Andy Lynch
That looks very good.
I have also made an attempt to build a viewer, but it is also very limited in
what it can do (very little files if you do not wait an hour, no optional lines,
but it could read subfiles).
As I discovered that it is quite easy to write a viewer for some lines, but
much, much for effort to have a quick working LDraw viewer I left that project
and asked for a DLL from the current working LDraw viewer that I can use in my
apps.
So at present I am still searching for such a .NET DLL for a viewer that can be
used on all OS without to be recompiled.
cu
mikeheide
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In lugnet.cad, Michael Heidemann wrote:
> I have also made an attempt to build a viewer, but it is also very limited in
> what it can do (very little files if you do not wait an hour, no optional lines,
> but it could read subfiles).
> As I discovered that it is quite easy to write a viewer for some lines, but
> much, much for effort to have a quick working LDraw viewer I left that project
> and asked for a DLL from the current working LDraw viewer that I can use in my
> apps.
>
> So at present I am still searching for such a .NET DLL for a viewer that can be
> used on all OS without to be recompiled.
>
> cu
> mikeheide
I tried to write a viewer once too (as a series of experimentation of maybe
having done a CAD program for parts authors!) using Tcl and OpenGL, but it
turned out to be *REALLY* slow, most probably due to bad subfile handling. While
the Animal Frog piece was not *so* bad, 3002.dat was incredibly slow and the PF
M-Motor threw an overflow error. So much for that. :)
Akin to Mike's hopes, an LDraw viewer library for tcl3d (=OpenGL bindings for
Tcl) would indeed work for me...
-Santeri
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In lugnet.cad, Santeri Piippo wrote:
> In lugnet.cad, Michael Heidemann wrote:
> > I have also made an attempt to build a viewer, but it is also very limited in
> > what it can do (very little files if you do not wait an hour, no optional lines,
> > but it could read subfiles).
> > As I discovered that it is quite easy to write a viewer for some lines, but
> > much, much for effort to have a quick working LDraw viewer I left that project
> > and asked for a DLL from the current working LDraw viewer that I can use in my
> > apps.
> >
> > So at present I am still searching for such a .NET DLL for a viewer that can be
> > used on all OS without to be recompiled.
> >
> > cu
> > mikeheide
> I tried to write a viewer once too (as a series of experimentation of maybe
> having done a CAD program for parts authors!) using Tcl and OpenGL, but it
> turned out to be *REALLY* slow, most probably due to bad subfile handling. While
> the Animal Frog piece was not *so* bad, 3002.dat was incredibly slow and the PF
> M-Motor threw an overflow error. So much for that. :)
>
> Akin to Mike's hopes, an LDraw viewer library for tcl3d (=OpenGL bindings for
> Tcl) would indeed work for me...
Incidentally, Processing does have an OpenGL renderer (JOGL), although I haven't
done any sort of testing to see how significant the performance benefit is. I
used the software renderer for the web viewer I posted just because the support
files for OpenGL increased the applet site to a few MB and I did not want to
wait for it to upload.
But, I am a fan of Tcl, too, so a tcl3d library would please me as well.
Jim
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