[cad-linux] Re: TomCAD
- From: "Thomas Schmidt" <thomas.schmidt@xxxxxxxxxx>
- To: <cad-linux@xxxxxxxxxxxxx>
- Date: Mon, 20 Jan 2003 23:08:11 +0100
Hi,
No problem, I appreciate every feedback, no matter what kind of. I would
have answered your questions earlier,
but I have been abroad, without access to my email.
My plans for TomCAD are quite simple. I strive for the best. :-) Ok,
seriously. My interest in CAD goes
back all the way to college time. The TomCAD you now see on
www.tomcad.org is not my first attempt to build such a program, so the
current version is the result of some
experience I made befor. Using powerful toolkits (Python, Qt, Hoops,
OpenCascade) I really hope to build
something usable, even for professional use. Detailed plans for future
functionality do not exists. This is user driven.
Send me your suggestions, and they have chances to get implemented. One sure
thing is 3D. It will be
inspired by the way Pro/Desktop works. This includes 2D scetches as 3D
profile definitions and feature based modelling.
I have looked at various CAD systems. This includes ME10, AutoCAD13,
AutoCAD2002, QCad, Varicon, and Pro/Desktop.
I'm trying to integrate what I like about a particular system, and try to
avoid what I dislike.
Although I had talks to a engineer working for many years with a CAD system
(ME10), it would be most helpfull
to get more input from a broader user range. So if you have any ideas or
suggestions, do not hesitate to post them.
Of course it would be most helpful if other developers could help. TomCAD is
highly modular, so everyone is invited
to contribute extension modules ( once I can provide a working version ).
Help is also needed in the documentation area.
The Hoops library is responsible for the rendering process. This means to
bring the internal data to the screen.
The Hoops library is a commercial product, but the vendor has released a
free-of-change version for Linux.
The vendor wants to have money if somebody makes money by using Hoops. That
was the reason for my
additional statement to the GPL. If the current TomCAD licencing is somehow
not appropriate, I'll change
the licencing, not the library. TomCAD will continue using Hoops. Please
note that TomCAD will stay
free in accordance to the GPL, even if its licence will change.
----- Original Message -----
From: "Kim Lux" <lux@xxxxxxxxxxxxxxxxxxx>
To: <cad-linux@xxxxxxxxxxxxx>
Sent: Monday, January 20, 2003 10:14 PM
Subject: [cad-linux] Re: TomCAD
>
> Hi Tom.
>
> I have a couple things to say...
>
> a) My apologies for insinuating that you might have been attempting to
> circumvent the GPL. I wrote that and I should have waited until I
> discussed it with you. I interpreted silence as avoidance. I recently
> did find a company circumventing the GPL, so I was presupposed to think
> it was happening again. FWIW, this was the only place I said it. My
> apologies.
>
> b) Thank you for replying to the group and spending some time with us
> !!!
>
> c) I like what I am hearing about TomCAD. What are your detailed plans
> for it ? How much research did you do into the other available CAD
> packages before starting TomCAD ? ie Varkon, Cascade, etc. Would you
> be interested in having other developers assist you with various duties
> in its development ?
>
> d) Below you are discussing the hoops library and the possibility of
> using another library if there are licensing issues. What other
> libraries were you thinking of ? What sort of functionality is the
> hoops library providing ? Could another package like Varkon replace it
> ?
>
> Thanks and my apologies again.
>
> Kim Lux
>
>
>
> On Mon, 2003-01-20 at 13:42, Thomas Schmidt wrote:
> > Yes, Hoops is a really good toolkit (no, I do not get money for
advertising
> > :-) ), but it is not
> > often used in the OpenSource world, maybe because of its commercial
> > background.
> > I have frequently checked out TSA's website since they released the
> > Hoops3dAF free version for Linux.
> > They have not changed their licencing since then. And they still do not
> > mention the GPL.
> > So I have just sent a mail to them about their toolkit and the GPL. Once
I
> > get their answer, I'll let you know.
> > If it turns out that I can not use the GPL, I'll switch to another
licence.
> > But whatever kind of licence
> > this might be, TomCAD will stay free software.
> >
> > ----- Original Message -----
> > From: "phrostie" <pfrostie@xxxxxxxxx>
> > To: <cad-linux@xxxxxxxxxxxxx>
> > Sent: Monday, January 20, 2003 9:17 PM
> > Subject: [cad-linux] Re: TomCAD
> >
> >
> > >
> > >
> > > --- Thomas Schmidt <thomas.schmidt@> wrote:
> > > > But I added
> > > > the statement about commercial usage, because the used Hoops library
> > does not
> > > > permit the development of commercial apps.
> > >
> > > i was wondering when we'd start seeing stuff using hoops.
> > > it was released a long time ago, but never made much news.
> > >
> > > > I decided to add the mentioned statement until I talked to
> > > > TSA, the vendor of the Hoops library,
> > > > if the GPL is compatible with their licence.
> > >
> > > did the hoops licence change somewhere along the line?
> > > i could not remember if it was gpl compatable or not.
> > > last time i was at their site i did not see anything about GPL.
> > >
> > >
> > > =====
> > > phrostie
> > > Oh I have slipped the surly bonds of DOS
> > > and danced the skies on Linux silvered wings.
> > > http://pfrostie.freeservers.com/cad-tastrafy/
> > > //www.freelists.org/webpage/cad-linux
> > >
> > > __________________________________________________
> > > Do you Yahoo!?
> > > Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> > > http://mailplus.yahoo.com
> > >
> > >
> --
> Kim Lux <lux@xxxxxxxxxxxxxxxxxxx>
>
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