[FWTools] Interlis driver, arcs interpolation

[Frank Warmerdam]

Andreas Neumann wrote:
> The support of arcs (and potentially also other curve types) is 
> definitely on the rise. Currently there aren't many tools that properly 
> support them. In Switzerland all survey data usually contains arcs.
> 
> I think it is important that future tools improve their support of arcs 
> and potentially also quadratic and cubic spline curves. These are very 
> important and quite important in desktop mapping/cartography. Maybe not 
> in the US and North-America, but definitely in Middle-Europe and 
> Switzerland. I am aware that while it is possible to store arc curves 
> now in Postgis, not all of the algorithms already properly support them. 
> But given that more and more data formats now storage of arcs and other 
> curves I think it would be very useful if a future version of OGR would 
> support them. At the german Fossgis in April in Freiburg I talked to 
> Markus Neteler from the GRASS team about curves in GRASS. He told me 
> that they will look into curve support for GRASS 7. No guarantees of 
> course, but the demand for curve support is definitely rising.

Andreas,

I'll note I'm hesitant to add support for non-linear curves in OGR until
it is part of the OGC simple features data model.  I do; however, see an
increasingly compelling need.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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