[gdal-dev] Esri JSON Curves

[Even Rouault]

> 
> In the first two cases (without OLCCurveGeometries set) I see
> curveToLineString is being called when there are curves in the data, but
> not on every result page (again curves are relatively rare in the dataset).

ok, then replace the call to OGRMemLayer::SetFeature() with 
OGRMemLayer::ISetFeature() in ogrgeojsonlayer.cpp to shortcut the 
linearization that is done by the generic OGRLayer::SetFeature()

And you can then remove OLCCurveGeometries


> In the last two cases (with OLCCurveGeometries set) I see
> curveToLineString is being called with a different back trace (related
> to OGRGeometryFactory::organizePolygons):

That one is fine. It is an implementation detail of organizePolygons()

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