Mercurial > gemma
diff pkg/octree/vertex.go @ 2472:db0e4ab57977 octree-diff
Turn new point cloud into WKB form of MultiPointZ.
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Tue, 26 Feb 2019 12:22:04 +0100 |
| parents | 63475c8e710e |
| children | 620038ade708 |
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--- a/pkg/octree/vertex.go Tue Feb 26 11:34:15 2019 +0100 +++ b/pkg/octree/vertex.go Tue Feb 26 12:22:04 2019 +0100 @@ -924,9 +924,13 @@ binary.Write(buf, binary.LittleEndian, wkb.MultiPointZ) binary.Write(buf, binary.LittleEndian, uint32(len(mpz))) + perPoint := bytes.NewBuffer(make([]byte, 0, 1+4)) + binary.Write(perPoint, binary.LittleEndian, wkb.NDR) + binary.Write(perPoint, binary.LittleEndian, wkb.PointZ) + hdr := perPoint.Bytes() + for _, p := range mpz { - binary.Write(buf, binary.LittleEndian, wkb.NDR) - binary.Write(buf, binary.LittleEndian, wkb.PointZ) + buf.Write(hdr) binary.Write(buf, binary.LittleEndian, math.Float64bits(p.X)) binary.Write(buf, binary.LittleEndian, math.Float64bits(p.Y)) binary.Write(buf, binary.LittleEndian, math.Float64bits(p.Z))