[Gdal-dev] OGR: DXF driver

[Frank Warmerdam]

Andreas Neumann wrote:
> In your proposal you mention that arcs and other curves could be 
> supported if the client has interest in it. In Switzerland, Arcs are 
> widely used in survey data. Support for arcs would be important. Do you 
> plan to convert those arcs to vertices, similar to the Interlis driver? 
> For the long-term - are there plans for upcoming ogr versions to support 
> the transformation of arcs and curves? More and more formats support 
> them and it would be great if an upcoming ogr version could handle arcs.

Andreas,

If curves are supported they would be approximated using line
strings as is done in several other drivers.

There is a new (a couple years old now) simple features geometry
model from OGC that includes some kinds of curves.  I would like
to upgrade OGR to support this new geometry model at some point but
this is a substantial effort and demand for this upgrade has been
weak so far.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush    | Geospatial Programmer for Rent