Mercurial > gemma
annotate pkg/imports/sr.go @ 1225:4d7c44f7044e
Factored out som zip lookup code to be reusable in sounding result upload controller.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 19 Nov 2018 17:28:35 +0100 |
parents | bc4b642c8d04 |
children | d842d9d10872 |
rev | line source |
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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 |
959
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14 package imports |
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15 |
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16 import ( |
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17 "archive/zip" |
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18 "bufio" |
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19 "context" |
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20 "crypto/sha1" |
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21 "database/sql" |
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22 "encoding/hex" |
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23 "errors" |
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24 "fmt" |
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25 "io" |
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26 "math" |
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27 "os" |
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Load boundary polygon of sounding result from ZIP file.
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28 "path" |
978
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29 "path/filepath" |
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30 "strconv" |
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31 "strings" |
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32 "time" |
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33 |
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34 shp "github.com/jonas-p/go-shp" |
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35 |
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36 "gemma.intevation.de/gemma/pkg/common" |
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37 "gemma.intevation.de/gemma/pkg/models" |
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38 "gemma.intevation.de/gemma/pkg/octree" |
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39 ) |
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40 |
991
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41 type SoundingResult string |
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42 |
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43 const ( |
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44 contourStepWidth = 0.1 |
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45 contourTolerance = 0.1 |
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46 ) |
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47 |
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48 const SRJobKind JobKind = "sr" |
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49 |
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50 type srJobCreator struct{} |
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51 |
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52 func init() { |
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53 RegisterJobCreator(SRJobKind, srJobCreator{}) |
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54 } |
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55 |
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56 func (srJobCreator) Create(_ JobKind, data string) (Job, error) { |
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57 return SoundingResult(data), nil |
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58 } |
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59 |
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60 func (srJobCreator) Depends() []string { |
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61 return []string{ |
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62 "waterway.sounding_results", |
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63 "waterway.sounding_results_contour_lines", |
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64 "waterway.bottlenecks", |
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65 } |
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66 } |
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67 |
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68 func (srJobCreator) StageDone( |
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69 tx *sql.Tx, |
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70 ctx context.Context, |
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71 id int64, |
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72 ) error { |
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73 _, err := tx.ExecContext(ctx, srStageDoneSQL, id) |
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74 return err |
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75 } |
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76 |
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77 const ( |
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78 srStageDoneSQL = ` |
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79 UPDATE waterway.sounding_results SET staging_done = true |
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80 WHERE id = $1` |
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81 |
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82 insertPointsSQL = ` |
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83 INSERT INTO waterway.sounding_results ( |
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84 bottleneck_id, |
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85 date_info, |
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86 depth_reference, |
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87 point_cloud, |
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88 area |
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89 ) VALUES ( |
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90 (SELECT bottleneck_id from waterway.bottlenecks where objnam = $1), |
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91 $2::date, |
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92 $3, |
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93 ST_Transform(ST_GeomFromWKB($4, $6::integer), 4326)::geography, |
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94 (SELECT CASE WHEN $5::bytea IS NULL THEN |
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95 ST_Transform( |
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96 ST_ConcaveHull( |
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97 ST_Force2D(ST_GeomFromWKB($4, $6::integer)), 0.7), 4326)::geography |
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98 ELSE |
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99 ST_Transform(ST_GeomFromWKB($5, $6::integer), 4326)::geography |
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100 END) |
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101 ) |
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102 RETURNING |
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103 id, |
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104 CASE WHEN ST_Y(ST_Centroid(point_cloud::geometry)) > 0 THEN |
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105 32600 |
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106 ELSE |
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107 32700 |
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108 END + floor((ST_X(ST_Centroid(point_cloud::geometry))+180)/6)::int + 1` |
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109 |
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110 insertOctreeSQL = ` |
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111 UPDATE waterway.sounding_results SET |
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112 octree_checksum = $2, octree_index = $3 |
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113 WHERE id = $1` |
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114 |
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115 insertContourSQL = ` |
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116 INSERT INTO waterway.sounding_results_contour_lines ( |
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117 sounding_result_id, |
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118 height, |
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119 lines |
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120 ) |
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121 SELECT |
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122 $1, |
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123 $2, |
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124 ST_Transform( |
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125 ST_Multi( |
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126 ST_CollectionExtract( |
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127 ST_SimplifyPreserveTopology( |
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128 ST_GeomFromWKB($4, $3::integer), |
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129 $5 |
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130 ), |
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131 2 |
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132 ) |
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133 ), |
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134 4326 |
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135 ) |
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136 FROM waterway.sounding_results sr |
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137 WHERE id = $1 |
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138 ` |
961
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139 ) |
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140 |
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141 func (sr SoundingResult) Do( |
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142 importID int64, |
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143 ctx context.Context, |
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144 conn *sql.Conn, |
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145 feedback Feedback, |
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146 ) error { |
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147 |
991
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148 z, err := zip.OpenReader(filepath.Join(string(sr), "sr.zip")) |
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149 if err != nil { |
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150 return err |
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151 } |
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152 defer z.Close() |
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153 |
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154 feedback.Info("Looking for 'meta.json'") |
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155 mf := common.FindInZIP(z, "meta.json") |
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156 if mf == nil { |
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157 return errors.New("Cannot find 'meta.json'") |
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158 } |
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159 |
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160 m, err := loadMeta(mf) |
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161 if err != nil { |
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162 return err |
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163 } |
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164 |
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165 if err := m.Validate(conn, ctx); err != nil { |
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166 return common.ToError(err) |
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167 } |
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168 |
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169 feedback.Info("Looking for '*.xyz'") |
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170 xyzf := common.FindInZIP(z, ".xyz") |
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171 if xyzf == nil { |
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172 return errors.New("Cannot find any *.xyz file") |
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173 } |
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174 |
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175 xyz, err := loadXYZ(xyzf, feedback) |
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176 if err != nil { |
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177 return err |
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178 } |
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179 |
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180 if len(xyz) == 0 { |
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181 return errors.New("XYZ does not contain any vertices.") |
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182 } |
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183 |
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184 // Is there a boundary shapefile in the ZIP archive? |
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185 polygon, err := loadBoundary(z) |
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186 if err != nil { |
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187 return err |
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188 } |
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189 |
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190 tx, err := conn.BeginTx(ctx, nil) |
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191 if err != nil { |
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192 return err |
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193 } |
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194 defer tx.Rollback() |
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195 |
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196 var id int64 |
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197 var epsg uint32 |
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198 start := time.Now() |
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199 |
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200 err = tx.QueryRow(insertPointsSQL, |
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201 m.Bottleneck, |
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202 m.Date.Time, |
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203 m.DepthReference, |
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204 xyz.AsWKB(), |
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205 polygon.AsWBK(), |
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206 m.EPSG, |
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207 ).Scan(&id, &epsg) |
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208 xyz, polygon = nil, nil // not need from now on. |
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209 feedback.Info("storing points took %s", time.Since(start)) |
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210 if err != nil { |
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211 return err |
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212 } |
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213 |
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214 feedback.Info("Best suited UTM EPSG: %d", epsg) |
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215 |
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216 feedback.Info("Triangulate...") |
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217 start = time.Now() |
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218 tin, err := octree.GenerateTinByID(conn, ctx, id, epsg) |
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219 feedback.Info("triangulation took %s", time.Since(start)) |
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220 if err != nil { |
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221 return err |
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222 } |
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223 |
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224 if tin == nil { |
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225 return errors.New("cannot load TIN from database") |
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226 } |
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227 |
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228 feedback.Info("Building octree...") |
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229 builder := octree.NewBuilder(tin) |
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230 start = time.Now() |
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231 builder.Build() |
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232 octreeIndex, err := builder.Bytes() |
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233 tin = nil // not needed from now on |
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234 feedback.Info("building octree took %s", time.Since(start)) |
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235 if err != nil { |
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236 return err |
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237 } |
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238 |
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239 feedback.Info("Store octree...") |
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240 start = time.Now() |
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241 h := sha1.New() |
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242 h.Write(octreeIndex) |
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243 checksum := hex.EncodeToString(h.Sum(nil)) |
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244 _, err = tx.Exec(insertOctreeSQL, id, checksum, octreeIndex) |
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245 feedback.Info("storing octree index took %s", time.Since(start)) |
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246 if err != nil { |
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247 return err |
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248 } |
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249 |
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250 tree := builder.Tree() |
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251 builder = nil // not needed from now on |
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252 |
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253 feedback.Info("Generate contour lines...") |
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254 start = time.Now() |
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255 err = generateContours(tree, tx, id) |
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256 feedback.Info("generating and storing contour lines took %s", time.Since(start)) |
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257 if err != nil { |
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258 return err |
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259 } |
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260 |
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261 // Store for potential later removal. |
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262 if err = track(tx, ctx, importID, "waterway.sounding_results", id); err != nil { |
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263 return err |
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264 } |
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265 |
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266 if err = tx.Commit(); err == nil { |
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267 feedback.Info("Storing sounding result was successful.") |
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268 } |
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269 return err |
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270 } |
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271 |
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272 func (sr SoundingResult) CleanUp() error { |
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273 return os.RemoveAll(string(sr)) |
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274 } |
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275 |
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276 func loadMeta(f *zip.File) (*models.SoundingResultMeta, error) { |
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277 r, err := f.Open() |
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278 if err != nil { |
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279 return nil, err |
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280 } |
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281 defer r.Close() |
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282 var m models.SoundingResultMeta |
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283 return &m, m.Decode(r) |
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284 } |
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285 |
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286 func loadXYZReader(r io.Reader, feedback Feedback) (octree.MultiPointZ, error) { |
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287 mpz := make(octree.MultiPointZ, 0, 250000) |
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288 s := bufio.NewScanner(r) |
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289 |
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290 for line := 1; s.Scan(); line++ { |
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291 text := s.Text() |
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292 var p octree.Vertex |
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293 // fmt.Sscanf(text, "%f,%f,%f") is 4 times slower. |
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294 idx := strings.IndexByte(text, ',') |
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295 if idx == -1 { |
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296 feedback.Warn("format error in line %d", line) |
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297 continue |
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298 } |
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299 var err error |
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300 if p.X, err = strconv.ParseFloat(text[:idx], 64); err != nil { |
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301 feedback.Warn("format error in line %d: %v", line, err) |
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302 continue |
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303 } |
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304 text = text[idx+1:] |
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305 if idx = strings.IndexByte(text, ','); idx == -1 { |
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306 feedback.Warn("format error in line %d", line) |
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307 continue |
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308 } |
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309 if p.Y, err = strconv.ParseFloat(text[:idx], 64); err != nil { |
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310 feedback.Warn("format error in line %d: %v", line, err) |
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311 continue |
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312 } |
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313 text = text[idx+1:] |
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314 if p.Z, err = strconv.ParseFloat(text, 64); err != nil { |
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315 feedback.Warn("format error in line %d: %v", line, err) |
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316 continue |
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317 } |
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318 mpz = append(mpz, p) |
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319 } |
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320 |
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321 if err := s.Err(); err != nil { |
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Started with writing an importer job for sounding results.
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322 return nil, err |
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Started with writing an importer job for sounding results.
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323 } |
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324 |
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325 return mpz, nil |
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326 } |
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327 |
988
7dfd3db94e6d
In preparation of persisting import jobs logging is done through an interface.
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328 func loadXYZ(f *zip.File, feedback Feedback) (octree.MultiPointZ, error) { |
959
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329 r, err := f.Open() |
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330 if err != nil { |
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331 return nil, err |
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Started with writing an importer job for sounding results.
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332 } |
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333 defer r.Close() |
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334 return loadXYZReader(r, feedback) |
959
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335 } |
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Started with writing an importer job for sounding results.
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336 |
960
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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337 func loadBoundary(z *zip.ReadCloser) (Polygon, error) { |
1225
4d7c44f7044e
Factored out som zip lookup code to be reusable in sounding result upload controller.
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338 shpF := common.FindInZIP(z, ".shp") |
960
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339 if shpF == nil { |
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340 return nil, nil |
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341 } |
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342 prefix := strings.TrimSuffix(shpF.Name, path.Ext(shpF.Name)) |
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343 dbfF := common.FindInZIP(z, prefix+".dbf") |
960
e23ae2c83427
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344 if dbfF == nil { |
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345 return nil, fmt.Errorf("No DBF file found for %s", shpF.Name) |
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346 } |
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347 |
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348 shpR, err := shpF.Open() |
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Load boundary polygon of sounding result from ZIP file.
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349 if err != nil { |
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Load boundary polygon of sounding result from ZIP file.
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350 return nil, err |
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Load boundary polygon of sounding result from ZIP file.
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351 } |
e23ae2c83427
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352 |
e23ae2c83427
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353 dbfR, err := dbfF.Open() |
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Load boundary polygon of sounding result from ZIP file.
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diff
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354 if err != nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
355 shpR.Close() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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356 return nil, err |
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Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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357 } |
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Load boundary polygon of sounding result from ZIP file.
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358 sr := shp.SequentialReaderFromExt(shpR, dbfR) |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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diff
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|
359 defer sr.Close() |
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Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
360 |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
361 if !sr.Next() { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
362 return nil, sr.Err() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
363 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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|
364 |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
365 _, s := sr.Shape() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
366 if s == nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
367 return nil, sr.Err() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
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|
368 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
369 |
972
17a03a84b0e8
Split out polygon code out of sounding result importer source file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
971
diff
changeset
|
370 return shapeToPolygon(s) |
960
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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|
371 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
372 |
977
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
373 func generateContours(tree *octree.Tree, tx *sql.Tx, id int64) error { |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
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|
374 stmt, err := tx.Prepare(insertContourSQL) |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
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|
375 if err != nil { |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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|
376 return err |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
377 } |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
378 defer stmt.Close() |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
379 |
1184
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
380 // Adjust contour lines heights to multiples of contourStepWidth |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
381 heights := make([]float64, 0) |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
382 h := contourStepWidth * math.Ceil(tree.Min.Z/contourStepWidth) |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
383 for ; h <= tree.Max.Z; h += contourStepWidth { |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
384 heights = append(heights, h) |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
385 } |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
386 |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
387 octree.DoContours(tree, heights, func(res *octree.ContourResult) { |
977
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
388 if err == nil { |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
389 _, err = stmt.Exec( |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
390 id, res.Height, tree.EPSG, |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
391 res.Lines.AsWKB2D(), |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
392 contourTolerance) |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
393 } |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
394 }) |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
395 |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
396 return err |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
397 } |