Generate GML from MySQL the_geom field

SE/superedit-OPEN_LAYERS_WPS.php

@@ -222,10 +222,10 @@ getCapabilities();
 // create the UI
 var layer = new OpenLayers.Layer.Vector("Scratchpad", {
 		strategies: [new OpenLayers.Strategy.BBOX()],
-	 	projection: new OpenLayers.Projection("EPSG:4326"),
+	 	projection: new OpenLayers.Projection("EPSG:900913"),
      	protocol: new OpenLayers.Protocol.WFS({
          		version: "1.1.0",
-         		srsName: "EPSG:4326",
+         		srsName: "EPSG:900913",
         		url: wfsUrl,//"http://demo.opengeo.org/geoserver/wfs"
          		featureNS :  "http://opengeo.org",
          		featureType: "restricted",
@@ -680,6 +680,48 @@ class WpsActionPrzypiszDoRekordu extends WpsActionBase {
 }
 
 class WfsAction {
+
+	/**
+	 * example: MULTIPOLYGON(((2072016.74395199 7234076.79293037,2072016.74395199 7234115.01144451,2072131.3994944 7234115.01144451,2072131.3994944 7234076.79293037,2072016.74395199 7234076.79293037)))
+	 */
+	public function generateGmlFromWKT($wkt) {
+		$gml = '';
+
+		$wktParts = explode('(', $wkt, 2);
+		ob_start();
+		if ('MULTIPOLYGON' == $wktParts[0]) {
+			$points = trim($wktParts[1], '() ');
+			$points = str_replace(',', "\n", $points);
+			?>
+				<gml:boundedBy>
+					<gml:Envelope srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
+						<gml:lowerCorner>-180 -90</gml:lowerCorner>
+						<gml:upperCorner>180 90</gml:upperCorner>
+					</gml:Envelope>
+				</gml:boundedBy>
+				<og:the_geom>
+					<gml:MultiSurface srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#900913">
+						<gml:surfaceMember>
+							<gml:Polygon srsDimension="2">
+								<gml:exterior>
+									<gml:LinearRing srsDimension="2">
+										<gml:posList>
+											<?php echo $points; ?>
+										</gml:posList>
+									</gml:LinearRing>
+								</gml:exterior>
+							</gml:Polygon>
+						</gml:surfaceMember>
+					</gml:MultiSurface>
+				</og:the_geom>
+			<?php
+		}
+		$gml = ob_get_contents();
+		ob_clean();
+
+		return $gml;
+	}
+
 	public function execute($args) {
 /*
  * Mapa odczytywanie punktów: http://www.maptiler.org/google-maps-coordinates-tile-bounds-projection/
@@ -690,7 +732,7 @@ class WfsAction {
 			18.614273071289062 54.33634445792519
 			18.614273071289062 54.33614429135817
  */
-		$buildings = array();
+		$buildingsGml = array();
 		$db = DB::getDB();
 		$sql = "select b.`ID`, AsWKT(b.`the_geom`) as the_geom
 			from `BUILDINGS` as b
@@ -698,14 +740,14 @@ class WfsAction {
 		";
 		$res = $db->query($sql);
 		while ($r = $db->fetch($res)) {
-			$buildings[$r->ID] = $r->the_geom;
+			$buildingsGml[$r->ID] = $this->generateGmlFromWKT($r->the_geom);
 		}
 
 		echo '<?xml version="1.0" encoding="UTF-8"?>';
 		?>
 <wfs:FeatureCollection xmlns:nasa="http://nasa.gov" xmlns:topp="http://www.openplans.org/topp" xmlns:usgs="http://www.usgs.gov/" xmlns:ogc="http://www.opengis.net/ogc" xmlns:wfs="http://www.opengis.net/wfs" xmlns:ows="http://www.opengis.net/ows" xmlns:ne="http://naturalearthdata.com" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml" xmlns:osm="http://openstreemap.org" xmlns:nurc="http://www.nurc.nato.int" xmlns:og="http://opengeo.org" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" numberOfFeatures="4" timeStamp="2014-07-16T13:22:43.307Z" xsi:schemaLocation="http://opengeo.org http://demo.opengeo.org:80/geoserver/wfs?service=WFS&amp;version=1.1.0&amp;request=DescribeFeatureType&amp;typeName=og%3Arestricted http://www.opengis.net/wfs http://demo.opengeo.org:80/geoserver/schemas/wfs/1.1.0/wfs.xsd">
 <!--
-<?php echo'<pre style="max-height:200px;overflow:auto;border:1px solid red;text-align:left;"> (' . __CLASS__ . '::' . __FUNCTION__ . ':' . __LINE__ . '): ';print_r($buildings);echo'</pre>'; ?>
+<?php echo'<pre style="max-height:200px;overflow:auto;border:1px solid red;text-align:left;"> (' . __CLASS__ . '::' . __FUNCTION__ . ':' . __LINE__ . '): ';print_r($buildingsGml);echo'</pre>'; ?>
 -->
   <gml:boundedBy>
     <gml:Envelope srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
@@ -714,80 +756,12 @@ class WfsAction {
     </gml:Envelope>
   </gml:boundedBy>
   <gml:featureMembers>
-    <og:restricted gml:id="restricted.1">
-      <gml:boundedBy>
-        <gml:Envelope srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
-          <gml:lowerCorner>-180 -90</gml:lowerCorner>
-          <gml:upperCorner>180 90</gml:upperCorner>
-        </gml:Envelope>
-      </gml:boundedBy>
-      <og:the_geom>
-        <gml:MultiSurface srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
-          <gml:surfaceMember>
-            <gml:Polygon srsDimension="2">
-              <gml:exterior>
-                <gml:LinearRing srsDimension="2">
-                  <gml:posList>18.45703125 54.36775852406841
-																18.6328125 54.36775852406841
-																18.6328125 54.470037612805754
-																18.45703125 54.470037612805754</gml:posList>
-                </gml:LinearRing>
-              </gml:exterior>
-            </gml:Polygon>
-          </gml:surfaceMember>
-        </gml:MultiSurface>
-      </og:the_geom>
-      <og:cat>1</og:cat>
-    </og:restricted>
-    <og:restricted gml:id="restricted.2">
-      <gml:boundedBy>
-        <gml:Envelope srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
-          <gml:lowerCorner>-180 -90</gml:lowerCorner>
-          <gml:upperCorner>180 90</gml:upperCorner>
-        </gml:Envelope>
-      </gml:boundedBy>
-      <og:the_geom>
-        <gml:MultiSurface srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
-          <gml:surfaceMember>
-            <gml:Polygon srsDimension="2">
-              <gml:exterior>
-                <gml:LinearRing srsDimension="2">
-                  <gml:posList>
-18.613243103027344 54.33614429135817
-18.613243103027344 54.33634445792519
-18.614273071289062 54.33634445792519
-18.614273071289062 54.33614429135817
-                  </gml:posList>
-                </gml:LinearRing>
-              </gml:exterior>
-            </gml:Polygon>
-          </gml:surfaceMember>
-        </gml:MultiSurface>
-      </og:the_geom>
-      <og:cat>2</og:cat>
-    </og:restricted>
-    <og:restricted gml:id="restricted.3">
-      <gml:boundedBy>
-        <gml:Envelope srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
-          <gml:lowerCorner>-180 -90</gml:lowerCorner>
-          <gml:upperCorner>180 90</gml:upperCorner>
-        </gml:Envelope>
-      </gml:boundedBy>
-      <og:the_geom>
-        <gml:MultiSurface srsDimension="2" srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
-          <gml:surfaceMember>
-            <gml:Polygon srsDimension="2">
-              <gml:exterior>
-                <gml:LinearRing srsDimension="2">
-                  <gml:posList>-103.76667007954185 44.40446480019764 -103.74902136903249 44.40436551670597 -103.74907639625017 44.39448281245848 -103.7666862908511 44.394471734835 -103.76667007954185 44.40446480019764</gml:posList>
-                </gml:LinearRing>
-              </gml:exterior>
-            </gml:Polygon>
-          </gml:surfaceMember>
-        </gml:MultiSurface>
-      </og:the_geom>
-      <og:cat>4</og:cat>
-    </og:restricted>
+		<?php foreach ($buildingsGml as $kId => $vGml) : ?>
+			<og:restricted gml:id="restricted.<?php echo $kId; ?>">
+				<?php echo $vGml; ?>
+				<og:cat><?php echo $kId; ?></og:cat>
+			</og:restricted>
+		<?php endforeach; ?>
   </gml:featureMembers>
 </wfs:FeatureCollection>
 		<?php