[Gvsig_english] help - Which CRS - Import of AutoCad Maps from excavations

[Marcus C. England]

We receive CAD data frequently and -- at least in residential 
development planning -- the data is ALWAYS without exception either in 
State Plane (NAD 83) or a coordinate system specific to the project 
based on a control point. I would think that implies that State Plane in 
the U.S. is a standard, which makes me wonder if they do something 
similar in Europe.

-Marcus

Sergio Clark wrote:
> Hallo,
>
> If you don't need to georeference your geometries I think you can use 
> any plane CRS (in meters: UTM for example), and load your layer with 
> the same CRS. This way, you should see your layer correctly, and 
> measure distances, etc..
>
> On the other hand, if you wish to "move" your geometries in order to 
> see them georeferenced, with real coordinates (maybe for loading over 
> them another layer with real coordinates) you should do a Translation 
> (X and Y) and Rotation. There's a Geoprocessing tool and a Editing 
> tool for doing this.
>
> I hope this helps you.
> Regards,
>
> Sergio.
>
>
>
> Rassmann at em.uni-frankfurt.de escribió:
>> Dear list,
>>
>> which CRS should I use for the import of DXF or DWG-Files (maps from 
>> archaeological excavation in Non World coordinates, without any 
>> projection, only x and y coordinates in meter)?
>>
>> Thank you
>>
>> Knut Rassmann
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>>
>>
>
>