// Create a new layer on the data source
func (ds DataSource) CreateLayer(
name string,
sr SpatialReference,
geomType GeometryType,
options []string,
) Layer {
cName := C.CString(name)
defer C.free(unsafe.Pointer(cName))
length := len(options)
opts := make([]*C.char, length+1)
for i := 0; i < length; i++ {
opts[i] = C.CString(options[i])
defer C.free(unsafe.Pointer(opts[i]))
}
opts[length] = (*C.char)(unsafe.Pointer(nil))
layer := C.OGR_DS_CreateLayer(
ds.cval,
cName,
sr.cval,
C.OGRwkbGeometryType(geomType),
(**C.char)(unsafe.Pointer(&opts[0])),
)
return Layer{layer}
}
// Set the geometry base type for this feature definition
func (fd FeatureDefinition) SetGeometryType(geomType GeometryType) {
C.OGR_FD_SetGeomType(fd.cval, C.OGRwkbGeometryType(geomType))
}
// Create an empty geometry of the desired type
func Create(geomType GeometryType) Geometry {
geom := C.OGR_G_CreateGeometry(C.OGRwkbGeometryType(geomType))
return Geometry{geom}
}