func (layer *Layer) Wkbs() chan []byte {
wkbs := make(chan []byte)
go func() {
defer close(wkbs)
C.OGR_L_ResetReading(layer.v)
for {
feature := C.OGR_L_GetNextFeature(layer.v)
if feature == nil {
break
}
geom := C.OGR_F_GetGeometryRef(feature)
size := C.OGR_G_WkbSize(geom)
buf := make([]byte, size)
C.OGR_G_ExportToWkb(geom, C.wkbNDR, (*C.uchar)(&buf[0]))
wkbs <- buf
C.OGR_F_Destroy(feature)
}
}()
return wkbs
}
// Returns size of related binary representation
func (geom Geometry) WKBSize() int {
size := C.OGR_G_WkbSize(geom.cval)
return int(size)
}