Mercurial > gemma
annotate pkg/imports/sr.go @ 3422:34e846f89936
Merged.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Thu, 23 May 2019 15:33:23 +0200 |
parents | 4acbee65275d |
children | 83b58f6356e7 |
rev | line source |
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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 // * Tom Gottfried <tom@intevation.de> |
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14 |
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15 package imports |
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16 |
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17 import ( |
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18 "archive/zip" |
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19 "bufio" |
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20 "context" |
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21 "crypto/sha1" |
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22 "database/sql" |
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23 "encoding/hex" |
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24 "errors" |
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25 "fmt" |
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26 "io" |
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27 "math" |
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28 "os" |
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29 "path" |
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30 "path/filepath" |
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31 "strconv" |
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32 "strings" |
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33 "time" |
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34 |
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35 shp "github.com/jonas-p/go-shp" |
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36 |
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37 "gemma.intevation.de/gemma/pkg/common" |
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38 "gemma.intevation.de/gemma/pkg/models" |
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39 "gemma.intevation.de/gemma/pkg/octree" |
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40 ) |
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41 |
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42 // SoundingResult is a Job to import sounding reults |
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43 // from a ZIP file into the database. |
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44 type SoundingResult struct { |
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45 // Dir is the folder in the file system where the |
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46 // 'sr.zip' is expect to be. |
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47 Dir string `json:"dir"` |
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48 |
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49 // Override data |
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50 // Date if given overrides the date value from the meta.json. |
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51 Date *models.Date `json:"date,omitempty"` |
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52 // Date if given overrides the name of the bottleneck from the meta.json. |
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53 Bottleneck *string `json:"bottleneck,omitempty"` |
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54 // EPSG if given overrides the EPSG code from the meta.json. |
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55 // Defaults to WGS84. |
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56 EPSG *uint `json:"epsg,omitempty"` |
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57 // DepthReference if given overides the DepthReference value |
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58 // from the meta.json. |
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59 DepthReference *string `json:"depth-reference,omitempty"` |
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60 } |
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61 |
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62 const ( |
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63 contourStepWidth = 0.1 |
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64 contourTolerance = 0.1 |
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65 ) |
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66 |
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67 // SRJobKind is the unique name of a SoundingResult import job. |
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68 const SRJobKind JobKind = "sr" |
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69 |
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70 type srJobCreator struct{} |
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71 |
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72 func init() { |
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73 RegisterJobCreator(SRJobKind, srJobCreator{}) |
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74 } |
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75 |
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76 func (srJobCreator) Description() string { return "sounding results" } |
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77 |
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78 func (srJobCreator) AutoAccept() bool { return false } |
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79 |
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80 func (srJobCreator) Create() Job { return new(SoundingResult) } |
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81 |
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82 func (srJobCreator) Depends() [2][]string { |
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83 return [2][]string{ |
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84 {"sounding_results", "sounding_results_contour_lines"}, |
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85 {"bottlenecks"}, |
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86 } |
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87 } |
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88 |
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89 func (srJobCreator) StageDone( |
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90 ctx context.Context, |
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91 tx *sql.Tx, |
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92 id int64, |
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93 ) error { |
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94 _, err := tx.ExecContext(ctx, srStageDoneSQL, id) |
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95 return err |
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96 } |
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97 |
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98 const ( |
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99 srStageDoneSQL = ` |
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100 UPDATE waterway.sounding_results SET staging_done = true |
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101 WHERE id = ( |
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102 SELECT key from import.track_imports |
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103 WHERE import_id = $1 AND |
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104 relation = 'waterway.sounding_results'::regclass)` |
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105 |
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106 insertHullSQL = ` |
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107 INSERT INTO waterway.sounding_results ( |
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108 bottleneck_id, |
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109 date_info, |
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110 depth_reference, |
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111 area |
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112 ) SELECT |
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113 (SELECT id from waterway.bottlenecks where objnam = $1), |
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114 $2::date, |
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115 $3, |
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116 (SELECT |
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117 CASE WHEN $5::bytea IS NULL THEN |
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118 ST_Transform(ST_ConcaveHull(ST_Force2D(ST_GeomFromWKB($4, $6::integer)), 0.7), 4326)::geography |
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119 ELSE |
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120 ST_Transform(ST_GeomFromWKB($5, $6::integer), 4326)::geography |
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121 END) |
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122 RETURNING |
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123 id, |
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124 ST_X(ST_Centroid(area::geometry)), |
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125 ST_Y(ST_Centroid(area::geometry)), |
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126 best_utm(area), |
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127 ST_AsBinary(ST_Transform(area::geometry, best_utm(area))) |
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128 ` |
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129 |
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130 reprojectPointsSQL = ` |
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131 SELECT ST_AsBinary(ST_Transform(ST_GeomFromWKB($1, $2::integer), $3::integer)) |
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132 ` |
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133 insertOctreeSQL = ` |
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134 UPDATE waterway.sounding_results SET |
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135 octree_checksum = $2, octree_index = $3 |
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136 WHERE id = $1` |
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137 |
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138 insertContourSQL = ` |
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139 INSERT INTO waterway.sounding_results_contour_lines ( |
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140 sounding_result_id, |
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141 height, |
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142 lines |
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143 ) |
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144 SELECT |
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145 $1, |
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146 $2, |
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147 ST_Transform( |
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148 ST_Multi( |
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149 ST_CollectionExtract( |
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150 ST_SimplifyPreserveTopology( |
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151 ST_Multi(ST_Collectionextract( |
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152 ST_MakeValid(ST_GeomFromWKB($4, $3::integer)), 2)), |
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153 $5 |
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154 ), |
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155 2 |
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156 ) |
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157 ), |
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158 4326 |
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159 ) |
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160 FROM waterway.sounding_results sr |
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161 WHERE id = $1 |
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162 ` |
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163 ) |
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164 |
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165 // Do executes the actual sounding result import. |
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166 func (sr *SoundingResult) Do( |
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167 ctx context.Context, |
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168 importID int64, |
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169 conn *sql.Conn, |
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170 feedback Feedback, |
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171 ) (interface{}, error) { |
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172 |
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173 begin := time.Now() |
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174 |
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175 z, err := zip.OpenReader(filepath.Join(sr.Dir, "sr.zip")) |
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176 if err != nil { |
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177 return nil, err |
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178 } |
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179 defer z.Close() |
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180 |
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181 feedback.Info("Looking for 'meta.json'") |
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182 mf := common.FindInZIP(z, "meta.json") |
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183 if mf == nil && !sr.completeOverride() { |
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184 return nil, errors.New("Cannot find 'meta.json'") |
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185 } |
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186 |
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187 m, err := sr.loadMeta(mf) |
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188 if err != nil { |
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189 return nil, err |
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190 } |
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191 |
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192 feedback.Info("Bottleneck: %s", m.Bottleneck) |
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193 feedback.Info("Survey date: %s", m.Date.Format(common.DateFormat)) |
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194 |
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195 if err := m.Validate(ctx, conn); err != nil { |
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196 return nil, common.ToError(err) |
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197 } |
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198 |
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199 var xyzf *zip.File |
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200 for _, ext := range []string{".xyz", ".txt"} { |
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201 feedback.Info("Looking for '*%s'", ext) |
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202 if xyzf = common.FindInZIP(z, ext); xyzf != nil { |
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203 break |
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204 } |
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205 } |
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206 if xyzf == nil { |
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207 return nil, errors.New("Cannot find any *.xyz or *.txt file") |
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208 } |
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209 |
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210 xyz, err := loadXYZ(xyzf, feedback) |
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211 if err != nil { |
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212 return nil, err |
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213 } |
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214 |
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215 if len(xyz) == 0 { |
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216 return nil, errors.New("XYZ does not contain any vertices") |
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217 } |
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218 |
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219 // Is there a boundary shapefile in the ZIP archive? |
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220 polygon, err := loadBoundary(z) |
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221 if err != nil { |
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222 return nil, err |
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223 } |
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224 |
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225 tx, err := conn.BeginTx(ctx, nil) |
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226 if err != nil { |
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227 return nil, err |
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228 } |
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229 defer tx.Rollback() |
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230 |
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231 var ( |
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232 id int64 |
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233 epsg uint32 |
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234 lat, lon float64 |
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235 ) |
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236 start := time.Now() |
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237 |
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238 var hull []byte |
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239 |
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240 xyzWKB := xyz.AsWKB() |
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241 |
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242 err = tx.QueryRow(insertHullSQL, |
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243 m.Bottleneck, |
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244 m.Date.Time, |
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245 m.DepthReference, |
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246 xyzWKB, |
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247 polygon.asWKB(), |
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248 m.EPSG, |
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249 ).Scan( |
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250 &id, |
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251 &lat, |
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252 &lon, |
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253 &epsg, |
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254 &hull, |
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255 ) |
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256 xyz, polygon = nil, nil // not need from now on. |
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257 feedback.Info("Calculating hull took %s.", time.Since(start)) |
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258 if err != nil { |
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259 return nil, err |
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260 } |
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261 feedback.Info("Best suited UTM EPSG: %d", epsg) |
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262 |
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263 start = time.Now() |
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264 |
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265 var clippingPolygon octree.Polygon |
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266 if err := clippingPolygon.FromWKB(hull); err != nil { |
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267 return nil, err |
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268 } |
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269 clippingPolygon.Indexify() |
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270 feedback.Info("Building clipping polygon took %v.", time.Since(start)) |
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271 |
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272 start = time.Now() |
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273 |
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274 var reproj []byte |
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275 |
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276 if err = tx.QueryRow(reprojectPointsSQL, |
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277 xyzWKB, |
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278 m.EPSG, |
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279 epsg, |
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280 ).Scan(&reproj); err != nil { |
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281 return nil, err |
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282 } |
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283 |
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284 if err := xyz.FromWKB(reproj); err != nil { |
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285 return nil, err |
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286 } |
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287 |
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288 feedback.Info("Reprojecting points took %v.", time.Since(start)) |
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289 feedback.Info("Number of reprojected points: %d", len(xyz)) |
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290 |
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291 start = time.Now() |
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292 |
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293 tri, err := octree.Triangulate(xyz) |
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294 if err != nil { |
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295 return nil, err |
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296 } |
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297 feedback.Info("Triangulation took %v.", time.Since(start)) |
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298 |
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299 start = time.Now() |
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300 |
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301 tin := tri.Tin() |
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302 |
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303 var str octree.STRTree |
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304 str.Build(tin) |
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305 feedback.Info("Building STR tree took %v", time.Since(start)) |
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306 |
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307 start = time.Now() |
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308 |
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309 removed := str.Clip(&clippingPolygon) |
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310 feedback.Info("Clipping STR tree took %v.", time.Since(start)) |
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311 feedback.Info("Number of triangles to clip %d.", len(removed)) |
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312 |
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313 start = time.Now() |
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314 |
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315 tin.EPSG = epsg |
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316 |
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317 builder := octree.NewBuilder(tin) |
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318 builder.Build(removed) |
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319 octreeIndex, err := builder.Bytes() |
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320 if err != nil { |
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321 return nil, err |
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322 } |
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323 feedback.Info("Building octree took %v.", time.Since(start)) |
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324 |
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325 start = time.Now() |
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326 h := sha1.New() |
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327 h.Write(octreeIndex) |
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328 checksum := hex.EncodeToString(h.Sum(nil)) |
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329 _, err = tx.Exec(insertOctreeSQL, id, checksum, octreeIndex) |
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330 if err != nil { |
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331 return nil, err |
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332 } |
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333 feedback.Info("Storing octree index took %s.", time.Since(start)) |
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334 |
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335 tree := builder.Tree() |
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336 |
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337 start = time.Now() |
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338 err = generateContours(tree, tx, id) |
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339 if err != nil { |
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340 return nil, err |
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341 } |
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342 feedback.Info("Generating and storing contour lines took %s.", |
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343 time.Since(start)) |
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344 |
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345 // Store for potential later removal. |
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346 if err = track(ctx, tx, importID, "waterway.sounding_results", id); err != nil { |
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347 return nil, err |
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348 } |
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349 |
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350 if err = tx.Commit(); err != nil { |
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351 feedback.Error( |
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352 "Storing sounding result failed after %v.", time.Since(begin)) |
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353 return nil, err |
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354 } |
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355 |
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356 feedback.Info( |
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357 "Storing sounding result was successful after %v.", time.Since(begin)) |
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358 |
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359 summary := struct { |
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360 Bottleneck string `json:"bottleneck"` |
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361 Date models.Date `json:"date"` |
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362 Lat float64 `json:"lat"` |
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363 Lon float64 `json:"lon"` |
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364 }{ |
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365 Bottleneck: m.Bottleneck, |
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366 Date: m.Date, |
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367 Lat: lat, |
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368 Lon: lon, |
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369 } |
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370 |
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371 return &summary, nil |
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372 } |
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373 |
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374 // CleanUp removes the folder containing the ZIP file with the |
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375 // the sounding result import. |
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376 func (sr *SoundingResult) CleanUp() error { |
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377 return os.RemoveAll(sr.Dir) |
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378 } |
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379 |
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380 func (sr *SoundingResult) completeOverride() bool { |
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381 // sr.EPSG == nil -> WGS84 |
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382 return sr.Bottleneck != nil && sr.Date != nil && sr.DepthReference != nil |
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383 } |
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384 |
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385 func (sr *SoundingResult) loadMeta(f *zip.File) (*models.SoundingResultMeta, error) { |
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386 if f == nil { |
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387 var epsg uint |
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388 if sr.EPSG != nil { |
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389 epsg = *sr.EPSG |
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390 } else { |
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391 epsg = models.WGS84 |
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392 } |
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393 return &models.SoundingResultMeta{ |
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394 Date: *sr.Date, |
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395 Bottleneck: *sr.Bottleneck, |
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396 EPSG: epsg, |
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397 DepthReference: *sr.DepthReference, |
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398 }, nil |
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399 } |
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400 r, err := f.Open() |
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401 if err != nil { |
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402 return nil, err |
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403 } |
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404 defer r.Close() |
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405 var m models.SoundingResultMeta |
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406 if err := m.Decode(r); err != nil { |
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407 return nil, err |
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408 } |
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409 |
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410 // Apply overrides |
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411 if sr.Date != nil { |
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412 m.Date = *sr.Date |
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413 } |
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414 if sr.Bottleneck != nil { |
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415 m.Bottleneck = *sr.Bottleneck |
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416 } |
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Sounding result import: Added the feature to override bottleneck, EPSG, depth reference and date in meta.json by POST arguments.
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417 if sr.EPSG != nil { |
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418 m.EPSG = *sr.EPSG |
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419 } |
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420 if sr.DepthReference != nil { |
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421 m.DepthReference = *sr.DepthReference |
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422 } |
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423 |
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424 return &m, nil |
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425 } |
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426 |
988
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In preparation of persisting import jobs logging is done through an interface.
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427 func loadXYZReader(r io.Reader, feedback Feedback) (octree.MultiPointZ, error) { |
959
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428 mpz := make(octree.MultiPointZ, 0, 250000) |
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429 s := bufio.NewScanner(r) |
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430 |
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431 var hasNegZ bool |
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432 |
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433 const maxWarnings = 100 |
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434 var warnings int |
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435 |
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436 warn := func(format string, args ...interface{}) { |
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437 if warnings++; warnings <= maxWarnings { |
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438 feedback.Warn(format, args...) |
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439 } |
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440 } |
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441 defer func() { |
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442 if warnings > maxWarnings { |
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443 feedback.Warn("Too many warnings. %d ignored.", warnings-maxWarnings) |
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444 } |
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445 }() |
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446 |
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447 for line := 1; s.Scan(); line++ { |
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Started with writing an importer job for sounding results.
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448 text := s.Text() |
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Started with writing an importer job for sounding results.
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449 var p octree.Vertex |
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450 // fmt.Sscanf(text, "%f,%f,%f") is 4 times slower. |
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451 idx := strings.IndexByte(text, ',') |
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Started with writing an importer job for sounding results.
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452 if idx == -1 { |
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453 warn("format error in line %d", line) |
959
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454 continue |
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Started with writing an importer job for sounding results.
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455 } |
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Started with writing an importer job for sounding results.
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456 var err error |
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457 if p.X, err = strconv.ParseFloat(text[:idx], 64); err != nil { |
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458 warn("format error in line %d: %v", line, err) |
959
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|
459 continue |
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|
460 } |
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Started with writing an importer job for sounding results.
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461 text = text[idx+1:] |
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|
462 if idx = strings.IndexByte(text, ','); idx == -1 { |
1138
443fc80a315f
Don't issue new lines at end of log messages when importing.
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1137
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|
463 feedback.Warn("format error in line %d", line) |
959
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|
464 continue |
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Started with writing an importer job for sounding results.
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|
465 } |
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Started with writing an importer job for sounding results.
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|
466 if p.Y, err = strconv.ParseFloat(text[:idx], 64); err != nil { |
2963
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SR import: Limit number of warnings in parsing XYZ files to 100.
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|
467 warn("format error in line %d: %v", line, err) |
959
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Started with writing an importer job for sounding results.
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|
468 continue |
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Started with writing an importer job for sounding results.
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|
469 } |
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Started with writing an importer job for sounding results.
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|
470 text = text[idx+1:] |
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Started with writing an importer job for sounding results.
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|
471 if p.Z, err = strconv.ParseFloat(text, 64); err != nil { |
2963
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SR import: Limit number of warnings in parsing XYZ files to 100.
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|
472 warn("format error in line %d: %v", line, err) |
959
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Started with writing an importer job for sounding results.
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|
473 continue |
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Started with writing an importer job for sounding results.
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|
474 } |
2612
c7ce8b011bcb
SR import: Negate negative Z values and issue a warning if a negative Z value is found.
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2530
diff
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|
475 if p.Z < 0 { |
c7ce8b011bcb
SR import: Negate negative Z values and issue a warning if a negative Z value is found.
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|
476 p.Z = -p.Z |
c7ce8b011bcb
SR import: Negate negative Z values and issue a warning if a negative Z value is found.
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|
477 if !hasNegZ { |
c7ce8b011bcb
SR import: Negate negative Z values and issue a warning if a negative Z value is found.
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|
478 hasNegZ = true |
2963
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|
479 warn("Negative Z value found: Using -Z") |
2612
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SR import: Negate negative Z values and issue a warning if a negative Z value is found.
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diff
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|
480 } |
c7ce8b011bcb
SR import: Negate negative Z values and issue a warning if a negative Z value is found.
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|
481 } |
959
6ab012d0f0c2
Started with writing an importer job for sounding results.
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|
482 mpz = append(mpz, p) |
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Started with writing an importer job for sounding results.
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diff
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|
483 } |
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Started with writing an importer job for sounding results.
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parents:
diff
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|
484 |
6ab012d0f0c2
Started with writing an importer job for sounding results.
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|
485 if err := s.Err(); err != nil { |
6ab012d0f0c2
Started with writing an importer job for sounding results.
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|
486 return nil, err |
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Started with writing an importer job for sounding results.
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|
487 } |
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Started with writing an importer job for sounding results.
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diff
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|
488 |
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Started with writing an importer job for sounding results.
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|
489 return mpz, nil |
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Started with writing an importer job for sounding results.
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parents:
diff
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|
490 } |
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Started with writing an importer job for sounding results.
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parents:
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|
491 |
988
7dfd3db94e6d
In preparation of persisting import jobs logging is done through an interface.
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|
492 func loadXYZ(f *zip.File, feedback Feedback) (octree.MultiPointZ, error) { |
959
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Started with writing an importer job for sounding results.
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|
493 r, err := f.Open() |
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Started with writing an importer job for sounding results.
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|
494 if err != nil { |
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Started with writing an importer job for sounding results.
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|
495 return nil, err |
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Started with writing an importer job for sounding results.
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|
496 } |
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Started with writing an importer job for sounding results.
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|
497 defer r.Close() |
988
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498 return loadXYZReader(r, feedback) |
959
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|
499 } |
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Started with writing an importer job for sounding results.
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parents:
diff
changeset
|
500 |
1786
09349ca27dd7
Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1754
diff
changeset
|
501 func loadBoundary(z *zip.ReadCloser) (polygonSlice, error) { |
1225
4d7c44f7044e
Factored out som zip lookup code to be reusable in sounding result upload controller.
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parents:
1224
diff
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|
502 shpF := common.FindInZIP(z, ".shp") |
960
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
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diff
changeset
|
503 if shpF == nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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diff
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|
504 return nil, nil |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
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parents:
959
diff
changeset
|
505 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
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506 prefix := strings.TrimSuffix(shpF.Name, path.Ext(shpF.Name)) |
1225
4d7c44f7044e
Factored out som zip lookup code to be reusable in sounding result upload controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1224
diff
changeset
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507 dbfF := common.FindInZIP(z, prefix+".dbf") |
960
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
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508 if dbfF == nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
509 return nil, fmt.Errorf("No DBF file found for %s", shpF.Name) |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
510 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
511 |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
512 shpR, err := shpF.Open() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
513 if err != nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
514 return nil, err |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
515 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
516 |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
517 dbfR, err := dbfF.Open() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
518 if err != nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
519 shpR.Close() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
520 return nil, err |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
521 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
522 sr := shp.SequentialReaderFromExt(shpR, dbfR) |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
523 defer sr.Close() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
524 |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
525 if !sr.Next() { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
526 return nil, sr.Err() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
527 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
528 |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
529 _, s := sr.Shape() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
530 if s == nil { |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
531 return nil, sr.Err() |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
532 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
533 |
972
17a03a84b0e8
Split out polygon code out of sounding result importer source file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
971
diff
changeset
|
534 return shapeToPolygon(s) |
960
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
535 } |
e23ae2c83427
Load boundary polygon of sounding result from ZIP file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
959
diff
changeset
|
536 |
977
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
537 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
changeset
|
538 stmt, err := tx.Prepare(insertContourSQL) |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
539 if err != nil { |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
540 return err |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
541 } |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
542 defer stmt.Close() |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
543 |
1184
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
544 // Adjust contour lines heights to multiples of contourStepWidth |
2530
3f61b84ae7a6
SR import: Set missing EPSG code to TIN.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2529
diff
changeset
|
545 var heights []float64 |
1184
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
546 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
|
547 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
|
548 heights = append(heights, h) |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
549 } |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
550 |
064d44ccc6f2
Adjust contour lines heights to multiples of step width
Tom Gottfried <tom@intevation.de>
parents:
1168
diff
changeset
|
551 octree.DoContours(tree, heights, func(res *octree.ContourResult) { |
2529
45d51a49f191
SR import: Use own triangulation and clipping when importing sounding results.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2516
diff
changeset
|
552 if err == nil && len(res.Lines) > 0 { |
977
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
553 _, err = stmt.Exec( |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
554 id, res.Height, tree.EPSG, |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
555 res.Lines.AsWKB2D(), |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
556 contourTolerance) |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
557 } |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
558 }) |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
559 |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
560 return err |
4a2ca0e20006
Fixed build error.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
976
diff
changeset
|
561 } |