Hi all,
I'm planning to switch from using a standard file format of Shapefiles to
Spatialite for internal storage of spatial data.
When importing from other formats, the app attempts to convert these to SQLite
(Spatialite) using 'OGR_DS_CopyLayer' to copy each layer from the source data
set to a new layer in the new SQLite dataset.
However, when converting Shapefiles to SQLite, it only copies across about a
third of the features for many of the layers and therefore the new data set is
of no use.
The relevant code and output is below.
I'm at a loss to figure out what is going wrong here and I'd be grateful is
somebody could assist in getting this to work as expected (or am I doing the
wrong thing completely?).
NB: This is using Spatialite on iOS (simulator).
When I use ogr2ogr on Mac OS X with SQLite (without Spatialite) it works fine
and doesn't miss any features.
Cheers,
Nik.
CODE:
OGRLayerH sourceLayer = OGR_DS_GetLayer(ds, i);
int sourceFeatureCount = OGR_L_GetFeatureCount(sourceLayer, YES);
OGR_DS_CopyLayer(destDS, sourceLayer, OGR_L_GetName(sourceLayer), NULL);
OGRLayerH destLayer = OGR_DS_GetLayerByName(destDS,
OGR_L_GetName(sourceLayer));
printf("sourceFeatureCount: %d\n", sourceFeatureCount);
printf(" destFeatureCount: %d\n", OGR_L_GetFeatureCount(destLayer,
YES));
OUTPUT:
sourceFeatureCount: 3882
destFeatureCount: 1200
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