[gdal-dev] Call for discussion on RFC 66: OGR random layer read/write capabilities

Howard Butler howard at hobu.co
Mon Oct 3 08:49:34 PDT 2016


I briefly looked at it the other day. My only nit was it seems a little confusing to have a GetNextFeature on both the Dataset and the Layer. Is one always better than the other? Which one should I use when? Should I always use Dataset::GetNextFeature() and let it forward down to OGRLayer::GetNextFeature()? The RFC is clear about those questions, but people don't read the docs :)  Is it possible and more clear to rename it?

Its need also suggest this is adding some messiness in the relationship of Dataset <-> Layer.  I suppose there's not much we can do about that.


> On Oct 3, 2016, at 2:49 AM, Even Rouault <even.rouault at spatialys.com> wrote:
> If nobody has remarks on it, I'll call for a vote on this on Wednesday.
> Even
>> Hi,
>> This is a call for discussion on "RFC 66: OGR random layer read/write
>> capabilities" :
>> https://trac.osgeo.org/gdal/wiki/rfc66_randomlayerreadwrite
>> This RFC introduces a new API to be able to iterate over vector features at
>> dataset level, in addition to the existing capability of doing it at the
>> layer level. The existing capability of writing features in layers in
>> random order, that is supported by most drivers with output capabilities,
>> is formalized with a new dataset capability flag.
>> Best regards,
>> Even
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