-
Notifications
You must be signed in to change notification settings - Fork 14
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
* Clean code to avoid nasty exception with incorrect geometries
- Loading branch information
Showing
11 changed files
with
793 additions
and
263 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,225 @@ | ||
| #!/usr/bin/env php | ||
| <?php | ||
|
|
||
| /* | ||
| * Copyright 2013 Jérôme Gasperi | ||
| * | ||
| * Licensed under the Apache License, version 2.0 (the "License"); | ||
| * You may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at: | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
| * License for the specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
|
|
||
| /* | ||
| * iTag - prepare landcover database from GlobCover2009 TIF image | ||
| */ | ||
|
|
||
| $help = "## iTag GlobCover 2009 compute and installation\n\n Usage computeLandCover.php [options] -f <path to GlobCover TIF file>\n\n"; | ||
| $help .= "OPTIONS:\n"; | ||
| $help .= " -H : postgres server hostname (default localhost)\n"; | ||
| $help .= " -d : iTag database name (default itag)\n"; | ||
| $help .= " -s : postgresql superuser (default postgres)\n"; | ||
| $help .= " -p : postgresql superuser password\n"; | ||
| $help .= "\n"; | ||
| $hostname = 'localhost'; | ||
| $superuser = 'postgres'; | ||
| $password = 'postgres'; | ||
| $dbname = 'itag'; | ||
| $options = getopt("f:hp:d:s:"); | ||
| foreach ($options as $option => $value) { | ||
| if ($option === "h") { | ||
| echo $help; | ||
| exit; | ||
| } | ||
| if ($option === "f") { | ||
| $globcover = $value; | ||
| } | ||
| if ($option === "H") { | ||
| $hostname = $value; | ||
| } | ||
| if ($option === "p") { | ||
| $password = $value; | ||
| } | ||
| if ($option === "s") { | ||
| $superuser = $value; | ||
| } | ||
| if ($option === "d") { | ||
| $dbname = $value; | ||
| } | ||
| } | ||
|
|
||
| $gdaltranslate = exec('which gdal_translate'); | ||
| $gdalpolygonize = exec('which gdal_polygonize.py'); | ||
| if (!isset($globcover)) { | ||
| echo $help; | ||
| exit; | ||
| } | ||
|
|
||
| // Get db connection | ||
| try { | ||
| $dbh = pg_connect("host=" . $hostname . " dbname=" . $dbname . " user=" . $superuser . " password=" . $password . " port=5432"); | ||
| } catch (Exception $e) { | ||
| echo ' ERROR : no connection to database'; | ||
| exit; | ||
| } | ||
| pg_set_client_encoding($dbh, "UTF8"); | ||
|
|
||
| $config = array( | ||
| 'translate' => $gdaltranslate, | ||
| 'polygonize' => $gdalpolygonize, | ||
| 'image' => $globcover, | ||
| 'dbname' => $dbname, | ||
| 'host' => $hostname, | ||
| 'user' => $superuser, | ||
| 'password' => $password | ||
| ); | ||
|
|
||
| // Produce the grid | ||
| $gridSize = 2; | ||
| // Longitude from -180 to 180 | ||
| for ($lon = -180; $lon <= 180; $lon = $lon + $gridSize) { | ||
| // Latitude from -60 to 90 | ||
| for ($lat = -60; $lat <= 90; $lat = $lat + $gridSize) { | ||
| $lat2 = $lat + $gridSize; | ||
| $lon2 = $lon + $gridSize; | ||
| $str = $lon . " " . $lat . "," . $lon . " " . $lat2 . "," . $lon2 . " " . $lat2 . "," . $lon2 . " " . $lat . "," . $lon . " " . $lat; | ||
| polygonize("POLYGON((" . $str . "))", $dbh, $config, $config); | ||
| } | ||
| } | ||
| echo ' --> done !'; | ||
|
|
||
| /** | ||
| * Return crop origin from Bounding Box for GLC2000 raster | ||
| * | ||
| * @param <Array> $bbox : ['ulx', 'uly', 'lrx', 'lry'] | ||
| * @return <Array> ['x','y','xsize','ysize'] | ||
| */ | ||
| function cropOriginGLC2000($bbox) { | ||
|
|
||
| // GLC2000 full raster info | ||
| $dx = 0.0089285714; | ||
| $dy = -0.0089285714; | ||
| $lon0 = -180.0; | ||
| $lat0 = 89.99107138060005; | ||
|
|
||
| return cropOrigin($bbox, $lon0, $lat0, $dx, $dy); | ||
| } | ||
|
|
||
| /** | ||
| * Return crop origin from Bounding Box for GlobCover raster | ||
| * | ||
| * @param <Array> $bbox : ['ulx', 'uly', 'lrx', 'lry'] | ||
| * @return <Array> ['x','y','xsize','ysize'] | ||
| */ | ||
| function cropOriginGlobCover($bbox) { | ||
|
|
||
| // GlobCover full raster info | ||
| $dx = 0.002777777777778; | ||
| $dy = -0.002777777777778; | ||
| $lon0 = -180.001388888888897; | ||
| $lat0 = 90.001388888888883; | ||
|
|
||
| return cropOrigin($bbox, $lon0, $lat0, $dx, $dy); | ||
| } | ||
|
|
||
| /** | ||
| * Return crop origin from Bounding Box | ||
| * | ||
| * @param <Array> $bbox : ['ulx', 'uly', 'lrx', 'lry'] | ||
| * @param <Float> $lon0 | ||
| * @param <Float> $lat0 | ||
| * @param <Float> $dx | ||
| * @param <Float> $dy | ||
| * @return <Array> ['x','y','xsize','ysize'] | ||
| */ | ||
| function cropOrigin($bbox, $lon0, $lat0, $dx, $dy) { | ||
| $x = floor(($bbox['ulx'] - $lon0) / $dx); | ||
| $y = floor(($bbox['uly'] - $lat0) / $dy); | ||
| $xsize = ceil(($bbox['lrx'] - $bbox['ulx']) / $dx); | ||
| $ysize = ceil(($bbox['lry'] - $bbox['uly']) / $dy); | ||
| return array('x' => $x, 'y' => $y, 'xsize' => $xsize, 'ysize' => $ysize); | ||
| } | ||
|
|
||
| function polygonize($footprint, $dbh, $config) { | ||
|
|
||
| echo ' --> Polygonize ' . $footprint . "\n"; | ||
|
|
||
| $tifName = '/tmp/' . md5(microtime()) . '.tif'; | ||
| $tmpTable = 'tmptable'; | ||
|
|
||
| // Crop GlobCover raster | ||
| $cropOrigin = cropOriginGlobCover(bbox($footprint)); | ||
| $srcWin = $cropOrigin['x'] . ' ' . $cropOrigin['y'] . ' ' . $cropOrigin['xsize'] . ' ' . $cropOrigin['ysize']; | ||
|
|
||
| // Crop GlobCover raster to $srcWin | ||
| exec($config['translate'] . " -of GTiff -srcwin " . $srcWin . " -a_srs EPSG:4326 " . $config['image'] . ' ' . $tifName); | ||
|
|
||
| // In case of crashing crop - polygon is outside bounds for example | ||
| if (!file_exists($tifName)) { | ||
| echo " --> WARNING : globcover crop error\n"; | ||
| return; | ||
| } | ||
|
|
||
| // Polygonize extracted raster within temporary table $tmpTable | ||
| exec($config['polygonize'] . ' ' . $tifName . ' -f "PostgreSQL" PG:"host=' . $config['host'] . ' user=' . $config['user'] . ' password=' . $config['password'] . ' dbname=' . $config['dbname'] . '" ' . $tmpTable . ' 2>&1'); | ||
|
|
||
| pg_query($dbh, 'INSERT INTO datasources.landcover2009(wkb_geometry,dn) SELECT wkb_geometry,dn FROM ' . $tmpTable); | ||
| unlink($tifName); | ||
|
|
||
| // Drop tmpTable - bug in gdla_polygonize.py ? | ||
| pg_query($dbh, 'DROP TABLE ' . $tmpTable); | ||
|
|
||
| } | ||
|
|
||
| /** | ||
| * | ||
| * Returns bounding box [ulx, uly, lrx, lry] from a WKT | ||
| * | ||
| * ULx,ULy | ||
| * +------------------+ | ||
| * | | | ||
| * | | | ||
| * | | | ||
| * | | | ||
| * +------------------+ | ||
| * LRx,LRy | ||
| * | ||
| * Example of WKT POLYGON : | ||
| * POLYGON((-180.0044642857 89.9955356663,-180.0044642857 87.9955356727,-178.0044642921 87.9955356727,-178.0044642921 89.9955356663,-180.0044642857 89.9955356663)) | ||
| * | ||
| * @param <string> $wkt : WKT | ||
| * @return string : random table name | ||
| * | ||
| */ | ||
| function bbox($wkt) { | ||
| $ulx = 180.0; | ||
| $uly = -90.0; | ||
| $lrx = -180.0; | ||
| $lry = 90.0; | ||
| $rep = array("(", ")", "multi", "polygon", "point", "linestring"); | ||
| $pairs = preg_split('/,/', str_replace($rep, "", strtolower($wkt))); | ||
| for ($i = 0; $i < count($pairs); $i++) { | ||
| $coords = preg_split('/ /', trim($pairs[$i])); | ||
| $x = floatval($coords[0]); | ||
| $y = floatval($coords[1]); | ||
| if ($x < $ulx) { | ||
| $ulx = $x; | ||
| } else if ($x > $lrx) { | ||
| $lrx = $x; | ||
| } | ||
| if ($y > $uly) { | ||
| $uly = $y; | ||
| } else if ($y < $lry) { | ||
| $lry = $y; | ||
| } | ||
| } | ||
|
|
||
| return array('ulx' => $ulx, 'uly' => $uly, 'lrx' => $lrx, 'lry' => $lry); | ||
| } |
Oops, something went wrong.