[Gdal-dev] OGR: DXF driver

[Frank Warmerdam]

Fodder wrote:
> Hi Frank,
> 
> Thanks, this would be great, although I can't fund it in completion (Euro
>>>>> Aussie dollar :) .Would you be prepared to develop just the READ side
> of the driver, and what do you think that would cost (without styling)?

Fodder,

I would be willing to implement only read support, though it would not
reduce the pricing all that much.

> Alternatively, are other users/organisations interested in jointly
> contributing?
> 
> On your proposal, you say that it would not support REGION, is it normal for
> polygons to be recorded as special polylines in DXF (such as from AutoCAD
> for example)? 

I'm afraid I'm not entirely sure what is normal.  I reviewed DXF docs,
a couple example files, and the GRASS DXF import program in preparing the
proposal, but DXF is still a bit of a mystery to me.  The proposal was
deliberately simplistic to match my current level of understanding.

> Would it support attributes, such as a DXF of contour lines with elevation
> attributes?

Generally no, though there is some opportunity improve the driver a bit
for easily recognizable attributes.  I have avoided doing a DXF driver for
many years because while the format is not so complicated, there are a
wide variety of ways for applications to encode complete geometries and
attach attributes.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent