Mercurial > gemma

annotate pkg/imports/wkb.go @ 4977:4bf6cde2d996

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Generalize WFS point import job to be able to import other geometry types, too.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 03 Mar 2020 18:05:33 +0100
parents 046a07a33b19
children 799e8248de8d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
1 // This is Free Software under GNU Affero General Public License v >= 3.0
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
2 // without warranty, see README.md and license for details.
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
3 //
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
4 // SPDX-License-Identifier: AGPL-3.0-or-later
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
5 // License-Filename: LICENSES/AGPL-3.0.txt
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
6 //
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
7 // Copyright (C) 2018 by via donau
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
8 // – Österreichische Wasserstraßen-Gesellschaft mbH
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
9 // Software engineering by Intevation GmbH
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
10 //
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
11 // Author(s):
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
13
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
14 package imports
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
15
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
16 import (
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
17 "bytes"
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
18 "encoding/binary"
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
19 "fmt"
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
20 "math"
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
21
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
22 shp "github.com/jonas-p/go-shp"
2471
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
23
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
24 "gemma.intevation.de/gemma/pkg/wkb"
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
25 )
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
26
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
27 type (
1860
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
28 pointSlice []float64
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
29 lineSlice [][]float64
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
30 polygonSlice [][][]float64
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
31 )
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
32
4977
4bf6cde2d996 Generalize WFS point import job to be able to import other geometry types, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4852
diff changeset
33 func newPointSlice(newProperties func() interface{}) func() (string, interface{}, interface{}) {
4bf6cde2d996 Generalize WFS point import job to be able to import other geometry types, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4852
diff changeset
34 return func() (string, interface{}, interface{}) {
4bf6cde2d996 Generalize WFS point import job to be able to import other geometry types, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4852
diff changeset
35 return "Point", new(pointSlice), newProperties()
4bf6cde2d996 Generalize WFS point import job to be able to import other geometry types, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4852
diff changeset
36 }
4bf6cde2d996 Generalize WFS point import job to be able to import other geometry types, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4852
diff changeset
37 }
4bf6cde2d996 Generalize WFS point import job to be able to import other geometry types, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4852
diff changeset
38
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
39 func (ls lineSlice) asWKB() []byte {
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
40
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
41 size := 1 + 4 + 4 + len(ls)*(2*8)
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
42
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
43 buf := bytes.NewBuffer(make([]byte, 0, size))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
44
2471
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
45 binary.Write(buf, binary.LittleEndian, wkb.NDR)
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
46 binary.Write(buf, binary.LittleEndian, wkb.LineString)
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
47 binary.Write(buf, binary.LittleEndian, uint32(len(ls)))
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
48
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
49 for _, c := range ls {
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
50 var lat, lon float64
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
51 if len(c) > 0 {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
52 lat = c[0]
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
53 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
54 if len(c) > 1 {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
55 lon = c[1]
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
56 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
57 binary.Write(buf, binary.LittleEndian, math.Float64bits(lat))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
58 binary.Write(buf, binary.LittleEndian, math.Float64bits(lon))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
59 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
60
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
61 return buf.Bytes()
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
62 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
63
4313
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
64 func (ls lineSlice) LinearRingGeom() wkb.LinearRingGeom {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
65 lr := make(wkb.LinearRingGeom, len(ls))
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
66 for i, v := range ls {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
67 lr[i].X = v[0]
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
68 lr[i].Y = v[1]
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
69 }
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
70 return lr
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
71 }
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
72
1860
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
73 func (p pointSlice) asWKB() []byte {
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
74
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
75 size := 1 + 4 + 2*8
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
76
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
77 buf := bytes.NewBuffer(make([]byte, 0, size))
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
78
2471
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
79 binary.Write(buf, binary.LittleEndian, wkb.NDR)
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
80 binary.Write(buf, binary.LittleEndian, wkb.Point)
1860
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
81
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
82 var lat, lon float64
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
83 if len(p) > 0 {
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
84 lat = p[0]
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
85 }
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
86 if len(p) > 1 {
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
87 lon = p[1]
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
88 }
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
89 binary.Write(buf, binary.LittleEndian, math.Float64bits(lat))
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
90 binary.Write(buf, binary.LittleEndian, math.Float64bits(lon))
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
91
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
92 return buf.Bytes()
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
93 }
f54ac71db1ac Importer: Added point geoemtry to wkb datatypes.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1786
diff changeset
94
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
95 func (ps polygonSlice) asWKB() []byte {
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
96 if ps == nil {
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
97 return nil
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
98 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
99 // pre-calculate size to avoid reallocations.
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
100 size := 1 + 4 + 4
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
101 for _, ring := range ps {
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
102 size += 4 + len(ring)*2*8
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
103 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
104
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
105 buf := bytes.NewBuffer(make([]byte, 0, size))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
106
2471
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
107 binary.Write(buf, binary.LittleEndian, wkb.NDR)
63475c8e710e Moved WKB constants to own package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1860
diff changeset
108 binary.Write(buf, binary.LittleEndian, wkb.Polygon)
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
109 binary.Write(buf, binary.LittleEndian, uint32(len(ps)))
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
110
4852
046a07a33b19 Fixed the golint issues of the imports package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4313
diff changeset
111 for _, ring := range ps {
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
112 binary.Write(buf, binary.LittleEndian, uint32(len(ring)))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
113 for _, v := range ring {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
114 var lat, lon float64
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
115 if len(v) > 0 {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
116 lat = v[0]
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
117 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
118 if len(v) > 1 {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
119 lon = v[1]
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
120 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
121 binary.Write(buf, binary.LittleEndian, math.Float64bits(lat))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
122 binary.Write(buf, binary.LittleEndian, math.Float64bits(lon))
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
123 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
124 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
125
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
126 return buf.Bytes()
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
127 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
128
1786
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
129 func shapeToPolygon(s shp.Shape) (polygonSlice, error) {
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
130 switch p := s.(type) {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
131 case *shp.Polygon:
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
132 return toPolygon(p.NumParts, p.Parts, p.Points), nil
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
133 case *shp.PolygonZ:
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
134 return toPolygon(p.NumParts, p.Parts, p.Points), nil
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
135 case *shp.PolygonM:
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
136 return toPolygon(p.NumParts, p.Parts, p.Points), nil
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
137 }
4177
8b75ac5e243e Made 'staticcheck' happy with pgxutils package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2471
diff changeset
138 return nil, fmt.Errorf("unsupported shape type %T", s)
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
139 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
140
1786
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
141 func toPolygon(numParts int32, parts []int32, points []shp.Point) polygonSlice {
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
142 out := make(polygonSlice, numParts)
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
143 var pos int32
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
144
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
145 for i := range out {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
146 var howMany int32
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
147 if i+1 >= len(parts) {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
148 howMany = int32(len(points)) - pos
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
149 } else {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
150 howMany = parts[i+1] - parts[i]
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
151 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
152
1786
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
153 line := make([][]float64, howMany)
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
154 vertices := make([]float64, 2*howMany)
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
155 for j := int32(0); j < howMany; j, pos = j+1, pos+1 {
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
156 p := &points[pos]
1786
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
157 vertex := vertices[j*2 : j*2+2]
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
158 vertex[0], vertex[1] = p.X, p.Y
09349ca27dd7 Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1785
diff changeset
159 line[j] = vertex
1785
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
160 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
161 out[i] = line
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
162 }
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
163 return out
614c6c766691 Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
164 }
4313
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
165
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
166 func (ps polygonSlice) MultiPolygonGeom() wkb.MultiPolygonGeom {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
167
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
168 var mp wkb.MultiPolygonGeom
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
169 var curr wkb.PolygonGeom
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
170
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
171 for _, r := range ps {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
172 lr := lineSlice(r).LinearRingGeom()
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
173 // A counter clockwise ring starts a new polygon.
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
174 if lr.CCW() {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
175 if len(curr) > 0 {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
176 mp = append(mp, curr)
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
177 curr = wkb.PolygonGeom{}
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
178 }
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
179 }
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
180 curr = append(curr, lr)
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
181 }
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
182
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
183 if len(curr) > 0 {
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
184 mp = append(mp, curr)
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
185 }
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
186
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
187 return mp
5da02dcc51f6 shape upload stretch import: Started to decode geometries and attributes from uploaded shape file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4177
diff changeset
188 }