Hello,
Thanks for the responses, After a long afternoon of tests : I try to access a WRECKS object, compose by an only point, with a QUAPOS specific value of 5, and an POSACC of 500.0 (find it using CARIS Easy View) 1- In ogrinfo -oo "RETURN_PRIMITIVES=ON" -oo "RETURN_LINKAGES=ON" -oo "LNAM_REFS=ON" file.000 WRECKS, I found the object, but no QUAPOS or POSACC (logical because the 2 attributes are not directly linked to the object, but to the geometry). 2- In ogrinfo -oo "RETURN_PRIMITIVES=ON" -oo "RETURN_LINKAGES=ON" -oo "LNAM_REFS=ON" file.000 IsolatedNode, I found the node representing the object but also no QUAPOS or POSACC. 3- In ogrinfo -oo "RETURN_PRIMITIVES=ON" -oo "RETURN_LINKAGES=ON" -oo "LNAM_REFS=ON" file.000 M_QUAL, I found an only object, spatially containing my wreck object, but POSACC is null. 4- In ogrinfo -oo "RETURN_PRIMITIVES=ON" -oo "RETURN_LINKAGES=ON" -oo "LNAM_REFS=ON" file.000 M_QUAL, I found 20 objects, but QUAPOS is null for all of them. 5- No M_ACCY table is present in my dataset. According to me, the good way to get these attributes, is the second one (2-), but even if I try a lot of things, I didn’t manage to : - Trying all the S57 option with –oo - Trying to change the CSV types and attributes catalog used by GDAL - Etc… Does someone know if it is possible to get these attribute through GDAL/OGR ? If not, is there another way to get this attributes (python GDAL scripts ? another command line software ?) Thanks again for your help ! Regards David 2016-07-29 11:31 GMT+02:00 teddy guerin <[email protected]>: > Hi, > Up for my previous answer. > I was wrong for lines and area values POSACC, QUAPOS are on edges and not > on "real object". > > Regards > Ted > > > ------------------------------ > *De :* David Ferdoille <[email protected]> > *À :* [email protected] > *Envoyé le :* Mercredi 27 juillet 2016 15h12 > *Objet :* [gdal-dev] OGR - S57 - geometry extraction issue > > Hello all, > > We are trying to render S57 files as ENC through Geoserver. > > We convert S57 to shapefiles thanks to ogr2ogr : 1 shapefile for 1 class > (ex : COALNE) and 1 geometry type (LINE) : > ogrinfo -oo "RETURN_PRIMITIVES=ON" -oo "RETURN_LINKAGES=ON" -oo > "LNAM_REFS=ON" CELLLL.000 COALNE > ogr2ogr -skipfailures -where "OGR_GEOMETRY='POINT' or > OGR_GEOMETRY='MULTIPOINT'" SOUNDG_points.shp CELLLL.000 SOUNDG > > We use gdal-2.1.0 with the S57_CSV environnement variable > (S57_CSV=/usr/local/share/gdal/ with s57*.csv files). > > > We noticed that objects (of COALNE class for example) have multiple > geometries and each sub-geometry have attributes like POSACC and QUAPOS > which are important for S52 representation. > We've succeeded to extract primitives (Edge, isolated points, connected > points, ...), but it looks very complex to operate. > > > We have some problems to extract geometries from s57 objects : > - we noticed that, for an object, all sub-geometries are aggregated to one > geometry > - we didn't succeed to extract geometry attributes like POSACC and QUAPOS > > > 1) Is there a way to not aggregate sub-geometries of an object and get > this list of sub-geometries ? > 2) Is there a way to extract geometry attributes like POSACC and QUAPOS ? > 3) If not, are these features planned ? > > > Thanks for your help ! > > > David > > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev > >
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