Mercurial > gemma

annotate pkg/mesh/loader.go @ 5591:0011f50cf216 surveysperbottleneckid

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Removed no longer used alternative api for surveys/ endpoint. As bottlenecks in the summary for SR imports are now identified by their id and no longer by the (not guarantied to be unique!) name, there is no longer the need to request survey data by the name+date tuple (which isn't reliable anyway). So the workaround was now reversed.
author Sascha Wilde <wilde@sha-bang.de>
date Wed, 06 Apr 2022 13:30:29 +0200
parents 5f47eeea988d
children 1222b777f51f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1017
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2018 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
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14 package mesh
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15
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16 import (
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17 "bufio"
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18 "bytes"
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19 "compress/gzip"
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20 "encoding/binary"
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21
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22 "gemma.intevation.de/gemma/pkg/log"
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23 )
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24
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25 func (s *STRTree) deserializeIndex(r *bufio.Reader) error {
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26 var numIndex int32
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27 if err := binary.Read(r, binary.LittleEndian, &numIndex); err != nil {
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28 return err
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29 }
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30 index := make([]int32, numIndex)
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31 s.index = index
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32
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33 var last int32
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34 for i := range index {
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35 v, err := binary.ReadVarint(r)
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36 if err != nil {
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37 return err
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38 }
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39 value := int32(v) + last
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40 index[i] = value
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41 last = value
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42 }
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43
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44 return nil
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45 }
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46
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47 func (s *STRTree) deserializeBBoxes(r *bufio.Reader) error {
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48
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49 var numBBoxes int32
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50 if err := binary.Read(r, binary.LittleEndian, &numBBoxes); err != nil {
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51 return err
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52 }
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53
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54 bboxes := make([]Box2D, numBBoxes)
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55 s.bboxes = bboxes
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56
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57 var err error
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58
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59 read := func(v *float64) {
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60 if err == nil {
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61 err = binary.Read(r, binary.LittleEndian, v)
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62 }
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63 }
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64
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65 for i := range bboxes {
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66 read(&bboxes[i].X1)
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67 read(&bboxes[i].Y1)
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68 read(&bboxes[i].X2)
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69 read(&bboxes[i].Y2)
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70 }
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71
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72 return err
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73 }
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74
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75 func (s *STRTree) deserialize(r *bufio.Reader) error {
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76 s.tin = new(Tin)
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77
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78 if err := s.tin.Deserialize(r); err != nil {
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79 return err
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80 }
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81 var numEntries uint8
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82 if err := binary.Read(r, binary.LittleEndian, &numEntries); err != nil {
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83 return err
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84 }
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85 s.Entries = int(numEntries)
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86
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87 if err := s.deserializeIndex(r); err != nil {
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88 return err
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89 }
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90
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91 return s.deserializeBBoxes(r)
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92 }
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93
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94 func (s *STRTree) FromBytes(data []byte) error {
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95 r, err := gzip.NewReader(bytes.NewReader(data))
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96 if err != nil {
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97 return err
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98 }
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99 return s.deserialize(bufio.NewReader(r))
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100 }
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101
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102 func (t *Tin) Deserialize(r *bufio.Reader) error {
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103
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104 if err := binary.Read(r, binary.LittleEndian, &t.EPSG); err != nil {
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105 return err
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106 }
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107
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108 log.Infof("EPSG: %d\n", t.EPSG)
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109
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110 if err := t.Min.Read(r); err != nil {
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111 return err
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112 }
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113
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114 if err := t.Max.Read(r); err != nil {
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115 return err
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116 }
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117
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118 log.Infof("BBOX: [[%f, %f, %f], [%f, %f, %f]]\n",
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119 t.Min.X, t.Min.Y, t.Min.Z,
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120 t.Max.X, t.Max.Y, t.Max.Z)
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121
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122 var numVertices uint32
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123 if err := binary.Read(r, binary.LittleEndian, &numVertices); err != nil {
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124 return err
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125 }
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126
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127 log.Infof("vertices: %d\n", numVertices)
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128
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129 vertices := make([]Vertex, numVertices)
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130 t.Vertices = vertices
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131
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132 for i := range vertices {
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133 if err := vertices[i].Read(r); err != nil {
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134 return err
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135 }
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136 }
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137
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138 var numTriangles uint32
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139 if err := binary.Read(r, binary.LittleEndian, &numTriangles); err != nil {
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140 return err
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141 }
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142
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143 log.Infof("triangles: %d\n", numTriangles)
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144
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145 indices := make([]int32, 3*numTriangles)
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146 triangles := make([][]int32, numTriangles)
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147 t.Triangles = triangles
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148
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149 var last int32
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150
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151 for i := range triangles {
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152 tri := indices[:3]
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153 indices = indices[3:]
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154 triangles[i] = tri
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155 for j := range tri {
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156 v, err := binary.ReadVarint(r)
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157 if err != nil {
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158 return err
674
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159 }
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160 value := int32(v) + last
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161 tri[j] = value
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parents:
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162 last = value
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parents:
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163 }
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parents:
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164 }
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parents:
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165
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166 return nil
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parents: 2465
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167 }