CAD file format specifications?

[Anthra Norell]

Andres Acosta wrote:
> HI there Anthara have you checked out www.Blender.org, It is open 
> source and accepts a lot of your formats. for import and export.
> Anrdres
> Anthra Norell wrote:
>> Hi,
>>   Anyone working with CAD who knows about numeric data entry? I have 
>> 3d coordinates of a construction site on a slope (borders, setbacks 
>> and isometric elevation lines). Someone made me aware of Google's 
>> Sketch Up. It looks very attractive for the purpose of architectural 
>> planning, especially suited to create visual impressions. Doodling 
>> seems easy. But I have to start with modeling the terrain and the 
>> envelope and the only way to do that seems to be in one of several 
>> CAD file formats (skp, dwg, dxf, 3ds, ddf and dem). So I need to cast 
>> my numbers into one of these formats. Any suggestions?
>>
>> Thanks
>>
>> Frederic
>>
>
>
Andres,

  Thanks for the tip. I wasn't aware of Blender. The web page looks 
promising. I downloaded it and am going to have a look at it.

Frederic