Golang GEOSWKBWriter_create_rの例

コード例 #1

ファイル: serialize.go プロジェクト: Rachine/imposm3

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

}

コード例 #2

ファイル: cwrappers.go プロジェクト: helmi03/gogeos

func cGEOSWKBWriter_create() *C.GEOSWKBWriter {
	handlemu.Lock()
	defer handlemu.Unlock()
	return C.GEOSWKBWriter_create_r(handle)
}