[Qgis-user] csv point file to dxf

[Paul Lens]

Hi Paul,

To be complete:  the ogr2ogr, is the command used by QGIS.

I just tried saving a 3D point shapefile to dxf using the layer "Save 
As" command.
The resulting dxf is perfectly 3D.

So, 3D point shapefiles seem to be very well managed in QGIS, at least 
for the "save as" command.

Regards,

Paul

Le 19/04/2013 9:43, Paul Lens a écrit :
> Hi,
>
> I do'nt know about converting a 3D csv to a shapefile.
>
> About converting shp to dxf 3D, I see in my notes that ogr2ogr can 
> export  Z values to a dxf file.
> It works fine for points.
> For polylines, it just saves one Z value per polyline, thus for the 
> whole polyline not per vertex.
> gvSig is able to save polylines to dxf with Z values per vertex.
> I do not know how the grass command  "v.out.dxf" exports 3D shapefiles.
>
> Hope this helps,
>
> Paul
>
> Le 18/04/2013 10:49, Paul Haakma a écrit :
>> Hi All
>>
>> Can anyone advise on a way to import an 'x,y,z' csv point file and 
>> then export those points to a dxf retaining the elevation (z) data?
>>
>> I've seen several comments on the web saying that QGIS doesn't export 
>> vector elevation data, but then I discovered that the following 
>> *does* work: start with a 3d dxf (e.g. points that have x,y,z 
>> coordinates), import, save as a shapefile, re-import that shapefile 
>> and re-export as a new dxf. The resulting dxf still has the z data.
>>
>> This demonstrates that QGIS has the ability to create and read a 2.5D 
>> shapefile, and also read and create a 3d dxf, I just can't seem to 
>> achieve this when starting with a simple csv file.
>>
>> Any ideas?
>>
>> -- 
>> -Paul
>>
>>
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>
>    
>
>
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