func (this *Geos) AsEwkbHex(geom *Geom) []byte {
writer := C.GEOSWKBWriter_create_r(this.v)
if writer == nil {
return nil
}
defer C.GEOSWKBWriter_destroy_r(this.v, writer)
if this.srid != 0 {
C.GEOSWKBWriter_setIncludeSRID_r(this.v, writer, C.char(1))
C.GEOSSetSRID_r(this.v, geom.v, C.int(this.srid))
}
var size C.size_t
buf := C.GEOSWKBWriter_writeHEX_r(this.v, writer, geom.v, &size)
if buf == nil {
return nil
}
result := C.GoBytes(unsafe.Pointer(buf), C.int(size))
C.free(unsafe.Pointer(buf))
return result
}
func cGEOSWKBWriter_setIncludeSRID(writer *C.GEOSWKBWriter, writeSRID C.char) {
handlemu.Lock()
defer handlemu.Unlock()
C.GEOSWKBWriter_setIncludeSRID_r(handle, writer, writeSRID)
}