Mercurial > gemma

comparison cmd/tin2octree/tin.go @ 664:a3d722e1f593 octree

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octree: Load point cloud data projected in a suited UTM zone.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 18 Sep 2018 13:41:04 +0200
parents af1d4d44a88a
children b0bd242ff821
comparison
equal deleted inserted replaced
662:d856e458dd64 664:a3d722e1f593
20 wkbNDR byte = 1 20 wkbNDR byte = 1
21 wkbTinZ uint32 = 1000 + 16 21 wkbTinZ uint32 = 1000 + 16
22 wkbTriangleZ uint32 = 1000 + 17 22 wkbTriangleZ uint32 = 1000 + 17
23 ) 23 )
24 24
25 const wgs84 = 4326
26
25 type tin struct { 27 type tin struct {
28 epsg uint32
26 vertices []vertex 29 vertices []vertex
27 triangles [][]int32 30 triangles [][]int32
28 31
29 min vertex 32 min vertex
30 max vertex 33 max vertex
153 } 156 }
154 } 157 }
155 triangles = append(triangles, triangle) 158 triangles = append(triangles, triangle)
156 } 159 }
157 160
161 log.Printf("bbox: [[%f, %f], [%f, %f]]\n",
162 min.x, min.y, max.x, max.y)
163
158 *t = tin{ 164 *t = tin{
165 epsg: wgs84,
159 vertices: vertices, 166 vertices: vertices,
160 triangles: triangles, 167 triangles: triangles,
161 min: min, 168 min: min,
162 max: max, 169 max: max,
163 } 170 }
183 } 190 }
184 return nil 191 return nil
185 } 192 }
186 193
187 func (t *tin) Serialize(w io.Writer) error { 194 func (t *tin) Serialize(w io.Writer) error {
195
196 if err := binary.Write(w, binary.LittleEndian, t.epsg); err != nil {
197 return err
198 }
188 199
189 if err := t.min.write(w); err != nil { 200 if err := t.min.write(w); err != nil {
190 return err 201 return err
191 } 202 }
192 if err := t.max.write(w); err != nil { 203 if err := t.max.write(w); err != nil {