On Mon, Nov 10, 2008 at 12:29 AM, Felipe Castro <fef...@gmail.com
2008/11/9 martin_gnu <openg...@gmail.com
> dgnlib is only for the dgn1 format and imcomplete. Now
> use dgn2 format which is more complete.
Yes, it's time to update... Maybe someone could try to get a
specification from Bentley.
I had the DGN1 C header fo the entities but i can not send you because
it´s of the company i work. This header file give us bentley 10 years
Maybe, a little bit new, but also incomplete. I have few time to
on it, so it's not usable. I intend to do some kind of "anti-dwg"
tool, that is:
dwg (2000) --> dxf
dwg --> dgn (maybe...)
dwg --> pdf (maybe...)
But that's a long term project, I have other ones to accomplish
I'm using the specification from ODA, this one here:
Yes it would be great use that specification to create a reader/
writer. In C like you work we can create bindings for all kind of
languages (.NET, JAVA, ruby, D, VALA, python, etc).
Microstation v8 use that especification and manage DWG format very
well for the 2000 version. Last microstation have good support for
For me the most interesting is investigate a new format using SQlite
(working with the b-tree directly) or using the EBML format.
It's a little bit "cryptic"... But with some patience (and a bit
reverse engineering) I could decypher it enough to read the
I started a project like 8 months ago to export from autocad and
microstation to one "free" format. The problem we don´t have consense
in that. Using .NET (c#) we can have real support for privative
software like Microstation, Autocad, Arc gis, etc for all versions.
In my opinion we need a free format (not DWG, not DGN, not DXF). With
the c# library we could add support to that format in a easy way to
all versions and kind of privative formats.