Exemplo n.º 1
0
         /* skip this layer if the srs is empty */
     }
     if ($srsLayerWkt == null) {
         $srsLayerWkt = $srsDefMap;
     }
     /* create a coordinate system from the layer's SRS wkt */
     $srsLayer = $srsFactory->Create($srsLayerWkt);
     $verMajor = subStr(GetSiteVersion(), 0, 1);
     if ($verMajor == '1') {
         $srsXform = new MgCoordinateSystemTransform($srsMap, $srsLayer);
     } else {
         $srsXform = $srsFactory->GetTransform($srsMap, $srsLayer);
     }
     $wktRW = new MgWktReaderWriter();
     $geom = $wktRW->Read($spatialFilter, $srsXform);
     $queryOptions->SetSpatialFilter($featureGeometryName, $geom, $variant);
 }
 /* select the features */
 try {
     $featureReader = $featureService->SelectFeatures($featureResId, $class, $queryOptions);
 } catch (MgException $e) {
     echo "ERROR2: " . $e->GetExceptionMessage() . "\n";
     echo $e->GetDetails() . "\n";
     echo $e->GetStackTrace() . "\n";
 }
 $layerName = $layerObj->GetName();
 array_push($properties->layers, $layerName);
 if ($bExtendSelection) {
     /* possibly toggle features in the map */
     $newSelection = new MgSelection($map);
     $newSelection->AddFeatures($layerObj, $featureReader, $maxFeatures);
Exemplo n.º 2
0
 function Execute()
 {
     $result = array();
     $resourceService = $this->site->CreateService(MgServiceType::ResourceService);
     $map = new MgMap();
     $map->Open($resourceService, $this->args['MAPNAME']);
     $layer = $map->GetLayers()->GetItem($this->args['LAYERNAME']);
     $featureService = $this->site->CreateService(MgServiceType::FeatureService);
     $resId = new MgResourceIdentifier($layer->GetFeatureSourceId());
     $featureClass = $layer->GetFeatureClassName();
     $featureGeometry = $layer->GetFeatureGeometryName();
     // Initialize the coordinate system transform
     $schemaAndClass = explode(":", $featureClass);
     $classDef = $featureService->GetClassDefinition($resId, $schemaAndClass[0], $schemaAndClass[1]);
     $geomProp = $classDef->GetProperties()->GetItem($featureGeometry);
     $spatialContext = $geomProp->GetSpatialContextAssociation();
     $csTransform = null;
     $csInverseTransform = null;
     $coordSysFactory = new MgCoordinateSystemFactory();
     $scReader = $featureService->GetSpatialContexts($resId, false);
     while ($scReader->ReadNext() && $csTransform == null) {
         if ($scReader->GetName() == $spatialContext) {
             $source = $coordSysFactory->Create($scReader->GetCoordinateSystemWkt());
             $target = $coordSysFactory->Create($map->GetMapSRS());
             $csTransform = new MgCoordinateSystemTransform($source, $target);
             $csInverseTransform = new MgCoordinateSystemTransform($target, $source);
         }
     }
     $scReader->Close();
     // Execute the query
     $queryMax = (int) $this->args['QUERYMAX'];
     $queryOptions = new MgFeatureQueryOptions();
     if ($this->args['USEPROPERTYFILTER'] == 'true') {
         $propertyFilter = $this->args['PROPERTYNAME'];
         if ($this->args['ISSTRING'] == 'true') {
             $propertyFilter .= sprintf($this->strExpressions[$this->args['OPERATOR']], $this->args['VALUE']);
         } else {
             $propertyFilter .= sprintf($this->numExpressions[$this->args['OPERATOR']], $this->args['VALUE']);
         }
         $queryOptions->SetFilter($propertyFilter);
     }
     if ($this->args['USESPATIALFILTER'] == 'true') {
         $polygon = $this->CreatePolygonFromGeomText($this->args['GEOMTEXT']);
         $polygon = $polygon->Transform($csInverseTransform);
         $queryOptions->SetSpatialFilter($featureGeometry, $polygon, MgFeatureSpatialOperations::Intersects);
     }
     $count = 0;
     $geometryReaderWriter = new MgAgfReaderWriter();
     $featureReader = $featureService->SelectFeatures($resId, $layer->GetFeatureClassName(), $queryOptions);
     while ($featureReader->ReadNext() && ($queryMax <= 0 || $count < $queryMax)) {
         $displayValue = $this->GetFeaturePropertyValue($featureReader, $this->args['OUTPUTPROPERTY']);
         $byteReader = $featureReader->GetGeometry($featureGeometry);
         $geometry = $geometryReaderWriter->Read($byteReader);
         $centerPoint = $geometry->GetCentroid();
         $centerPoint = $centerPoint->Transform($csTransform);
         $idList = $this->GetFeatureIdList($map, $layer, $featureReader);
         array_push($result, new Feature($displayValue, $centerPoint, $idList));
         $count++;
     }
     return $result;
 }
 public function SelectFeatures($resId, $schemaName, $className, $format)
 {
     //Check for unsupported representations
     $fmt = $this->ValidateRepresentation($format, array("xml", "html", "geojson"));
     $mimeType = $this->GetMimeTypeForFormat($fmt);
     try {
         $sessionId = "";
         if ($resId->GetRepositoryType() == MgRepositoryType::Session) {
             $sessionId = $resId->GetRepositoryName();
         }
         $this->EnsureAuthenticationForSite($sessionId, true, $mimeType);
         $siteConn = new MgSiteConnection();
         $siteConn->Open($this->userInfo);
         $site = $siteConn->GetSite();
         $this->VerifyWhitelist($resId->ToString(), $mimeType, "SELECTFEATURES", $fmt, $site, $this->userName);
         $featSvc = $siteConn->CreateService(MgServiceType::FeatureService);
         $query = new MgFeatureQueryOptions();
         $filter = $this->GetRequestParameter("filter", "");
         $propList = $this->GetRequestParameter("properties", "");
         $orderby = $this->GetRequestParameter("orderby", "");
         $orderOptions = $this->GetRequestParameter("orderoption", "asc");
         $maxFeatures = $this->GetRequestParameter("maxfeatures", "");
         $transformto = $this->GetRequestParameter("transformto", "");
         $bbox = $this->GetRequestParameter("bbox", "");
         $pageSize = $this->GetRequestParameter("pagesize", -1);
         $pageNo = $this->GetRequestParameter("page", -1);
         //Internal debugging flag
         $chunk = $this->GetBooleanRequestParameter("chunk", true);
         if ($pageNo >= 0 && $pageSize === -1) {
             $this->BadRequest($this->app->localizer->getText("E_MISSING_REQUIRED_PARAMETER", "pagesize"), $mimeType);
         }
         if ($filter !== "") {
             $query->SetFilter($filter);
         }
         $limit = -1;
         if ($maxFeatures !== "") {
             $limit = intval($maxFeatures);
         }
         if ($propList !== "") {
             $propNames = explode(",", $propList);
             //If you have a comma in your property names, it's your own fault :)
             foreach ($propNames as $propName) {
                 $query->AddFeatureProperty($propName);
             }
         }
         if ($orderby !== "") {
             $orderPropNames = explode(",", $orderby);
             //If you have a comma in your property names, it's your own fault :)
             $orderProps = new MgStringCollection();
             foreach ($orderPropNames as $propName) {
                 $orderProps->Add($propName);
             }
             $orderOpt = MgOrderingOption::Ascending;
             if (strtolower($orderOptions) === "desc") {
                 $orderOpt = MgOrderingOption::Descending;
             }
             $query->SetOrderingFilter($orderProps, $orderOpt);
         }
         $transform = null;
         if ($transformto !== "") {
             $transform = MgUtils::GetTransform($featSvc, $resId, $schemaName, $className, $transformto);
         }
         if ($bbox !== "") {
             $parts = explode(",", $bbox);
             if (count($parts) == 4) {
                 $wktRw = new MgWktReaderWriter();
                 $geom = $wktRw->Read(MgUtils::MakeWktPolygon($parts[0], $parts[1], $parts[2], $parts[3]));
                 //Transform the bbox if we have the flag indicating so
                 $bboxIsTargetCs = $this->GetBooleanRequestParameter("bboxistargetcs", false);
                 if ($bboxIsTargetCs) {
                     //Because it has been declared the bbox is in target coordiantes, we have to transform that bbox back to the
                     //source, which means we need an inverse transform
                     $invTx = MgUtils::GetTransform($featSvc, $resId, $schemaName, $className, $transformto, true);
                     $geom = $geom->Transform($invTx);
                 }
                 $clsDef = $featSvc->GetClassDefinition($resId, $schemaName, $className);
                 $query->SetSpatialFilter($clsDef->GetDefaultGeometryPropertyName(), $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
             }
         }
         $reader = $featSvc->SelectFeatures($resId, "{$schemaName}:{$className}", $query);
         $owriter = null;
         if ($chunk === "0") {
             $owriter = new MgSlimChunkWriter($this->app);
         } else {
             $owriter = new MgHttpChunkWriter();
         }
         if ($pageSize > 0) {
             if ($pageNo < 1) {
                 $pageNo = 1;
             }
             $pageReader = new MgPaginatedFeatureReader($reader, $pageSize, $pageNo, $limit);
             $result = new MgReaderChunkedResult($featSvc, $pageReader, $limit, $owriter, $this->app->localizer);
         } else {
             $result = new MgReaderChunkedResult($featSvc, $reader, $limit, $owriter, $this->app->localizer);
         }
         $result->CheckAndSetDownloadHeaders($this->app, $format);
         if ($transform != null) {
             $result->SetTransform($transform);
         }
         if ($fmt === "html") {
             $result->SetHtmlParams($this->app);
         }
         $result->Output($format);
     } catch (MgException $ex) {
         $this->OnException($ex, $mimeType);
     }
 }
Exemplo n.º 4
0
 /**
  * Queries the configured feature source and returns a MgReader based on the current GET query parameters and adapter configuration
  */
 protected function CreateQueryOptions($single)
 {
     $query = new MgFeatureQueryOptions();
     $this->EnsureQualifiedClassName();
     $tokens = explode(":", $this->className);
     $clsDef = null;
     $clsDef = $this->featSvc->GetClassDefinition($this->featureSourceId, $tokens[0], $tokens[1]);
     if ($single === true) {
         if ($this->featureId == null) {
             throw new Exception($this->app->localizer->getText("E_NO_FEATURE_ID_SET"));
         }
         $idType = MgPropertyType::String;
         if ($this->featureIdProp == null) {
             $idProps = $clsDef->GetIdentityProperties();
             if ($idProps->GetCount() == 0) {
                 throw new Exception($this->app->localizer->getText("E_CANNOT_QUERY_NO_ID_PROPS", $this->className, $this->featureSourceId->ToString()));
             } else {
                 if ($idProps->GetCount() > 1) {
                     throw new Exception($this->app->localizer->getText("E_CANNOT_QUERY_MULTIPLE_ID_PROPS", $this->className, $this->featureSourceId->ToString()));
                 } else {
                     $idProp = $idProps->GetItem(0);
                     $this->featureIdProp = $idProp->GetName();
                     $idType = $idProp->GetDataType();
                 }
             }
         } else {
             $props = $clsDef->GetProperties();
             $iidx = $props->IndexOf($this->featureIdProp);
             if ($iidx >= 0) {
                 $propDef = $props->GetItem($iidx);
                 if ($propDef->GetPropertyType() != MgFeaturePropertyType::DataProperty) {
                     throw new Exception($this->app->localizer->getText("E_ID_PROP_NOT_DATA", $this->featureIdProp));
                 }
             } else {
                 throw new Exception($this->app->localizer->getText("E_ID_PROP_NOT_FOUND", $this->featureIdProp));
             }
         }
         if ($idType == MgPropertyType::String) {
             $query->SetFilter($this->featureIdProp . " = '" . $this->featureId . "'");
         } else {
             $query->SetFilter($this->featureIdProp . " = " . $this->featureId);
         }
     } else {
         $flt = $this->app->request->get("filter");
         if ($flt != null) {
             $query->SetFilter($flt);
         }
         $bbox = $this->app->request->get("bbox");
         if ($bbox != null) {
             $parts = explode(",", $bbox);
             if (count($parts) == 4) {
                 $wktRw = new MgWktReaderWriter();
                 $geom = $wktRw->Read(MgUtils::MakeWktPolygon($parts[0], $parts[1], $parts[2], $parts[3]));
                 $query->SetSpatialFilter($clsDef->GetDefaultGeometryPropertyName(), $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
             }
         }
     }
     if (isset($this->app->ComputedProperties)) {
         $compProps = $this->app->ComputedProperties;
         foreach ($compProps as $alias => $expression) {
             $this->computedPropertyList[$alias] = $expression;
         }
     }
     $bAppliedComputedProperties = false;
     if (count($this->computedPropertyList) > 0) {
         foreach ($this->computedPropertyList as $alias => $expression) {
             $query->AddComputedProperty($alias, $expression);
             $bAppliedComputedProperties = true;
         }
     }
     //If computed properties were applied, add all properties from the class definition if no
     //explicit property list supplied
     if ($bAppliedComputedProperties && count($this->propertyList) == 0) {
         $clsProps = $clsDef->GetProperties();
         for ($i = 0; $i < $clsProps->GetCount(); $i++) {
             $propDef = $clsProps->GetItem($i);
             $query->AddFeatureProperty($propDef->GetName());
         }
     } else {
         if (count($this->propertyList) > 0) {
             foreach ($this->propertyList as $propName) {
                 $query->AddFeatureProperty($propName);
             }
         }
     }
     $orderby = $this->app->request->get("orderby");
     $orderOptions = $this->app->request->get("orderoption");
     if ($orderby != null) {
         if ($orderOptions == null) {
             $orderOptions = "asc";
         }
         $orderPropNames = explode(",", $orderby);
         //If you have a comma in your property names, it's your own fault :)
         $orderProps = new MgStringCollection();
         foreach ($orderPropNames as $propName) {
             $orderProps->Add($propName);
         }
         $orderOpt = MgOrderingOption::Ascending;
         if (strtolower($orderOptions) === "desc") {
             $orderOpt = MgOrderingOption::Descending;
         }
         $query->SetOrderingFilter($orderProps, $orderOpt);
     }
     return $query;
 }
Exemplo n.º 5
0
    $map->Open($mapName);
    // Get the geometry for the boundaries of District 1
    $districtQuery = new MgFeatureQueryOptions();
    $districtQuery->SetFilter("Autogenerated_SDF_ID = 1");
    $layer = $map->GetLayers()->GetItem('Districts');
    $featureReader = $layer->SelectFeatures($districtQuery);
    $featureReader->ReadNext();
    $districtGeometryData = $featureReader->GetGeometry('Data');
    // Convert the AGF binary data to MgGeometry.
    $agfReaderWriter = new MgAgfReaderWriter();
    $districtGeometry = $agfReaderWriter->Read($districtGeometryData);
    // Create a filter to select the desired features. Combine
    // a basic filter and a spatial filter.
    $queryOptions = new MgFeatureQueryOptions();
    $queryOptions->SetFilter("RNAME LIKE 'SCHMITT%'");
    $queryOptions->SetSpatialFilter('SHPGEOM', $districtGeometry, MgFeatureSpatialOperations::Inside);
    // Get the features from the feature source,
    // turn it into a selection, then save the selection as XML.
    $layer = $map->GetLayers()->GetItem('Parcels');
    $featureReader = $layer->SelectFeatures($queryOptions);
    $layer = $map->GetLayers()->GetItem('Parcels');
    $selection = new MgSelection($map);
    $selection->AddFeatures($layer, $featureReader, 0);
    $selectionXml = $selection->ToXml();
    echo 'Selecting parcels owned by Schmitt in District&nbsp;1';
} catch (MgException $e) {
    echo $e->GetExceptionMessage();
    echo $e->GetDetails();
}
?>
 private function PutVectorTileXYZ($map, $groupName, $siteConn, $metersPerUnit, $csFactory, $path, $boundsMinx, $boundsMinY, $boundsMaxX, $boundsMaxY, $layerNames)
 {
     $wktRw = new MgWktReaderWriter();
     $agfRw = new MgAgfReaderWriter();
     $resSvc = $siteConn->CreateService(MgServiceType::ResourceService);
     $featSvc = $siteConn->CreateService(MgServiceType::FeatureService);
     $mapCsWkt = $map->GetMapSRS();
     $layers = $map->GetLayers();
     $groups = $map->GetLayerGroups();
     $baseGroup = $groups->GetItem($groupName);
     $layerCount = $layers->GetCount();
     $firstFeature = true;
     $scale = self::GetScaleFromBounds($map, self::XYZ_TILE_WIDTH, self::XYZ_TILE_HEIGHT, $metersPerUnit, $boundsMinx, $boundsMinY, $boundsMaxX, $boundsMaxY);
     $fp = fopen($path, "w");
     fwrite($fp, '{ "type": "FeatureCollection", "features": [');
     for ($i = 0; $i < $layerCount; $i++) {
         $layer = $layers->GetItem($i);
         $parentGroup = $layer->GetGroup();
         if ($parentGroup != null && $parentGroup->GetObjectId() == $baseGroup->GetObjectId()) {
             if (!self::IsLayerVisibleAtScale($layer, $resSvc, $scale)) {
                 continue;
             }
             //If list of layer names specified, skip if this layer is not in that list
             if ($layerNames != null) {
                 $bFound = false;
                 foreach ($layerNames as $layerName) {
                     if ($layer->GetName() == $layerName) {
                         $bFound = true;
                         break;
                     }
                 }
                 if (!$bFound) {
                     continue;
                 }
             }
             $wktPoly = MgUtils::MakeWktPolygon($boundsMinx, $boundsMinY, $boundsMaxX, $boundsMaxY);
             $geom = $wktRw->Read($wktPoly);
             $clsDef = $layer->GetClassDefinition();
             $clsProps = $clsDef->GetProperties();
             $idProps = $clsDef->GetIdentityProperties();
             $idName = NULL;
             if ($idProps->GetCount() == 1) {
                 $idp = $idProps->GetItem(0);
                 $idName = $idp->GetName();
             }
             $fsId = new MgResourceIdentifier($layer->GetFeatureSourceId());
             //Set up forward and inverse transforms. Inverse for transforming map bounding box
             //Forward for transforming source geometries to map space
             $xform = self::GetTransform($featSvc, $fsId, $clsDef, $mapCsWkt, $csFactory);
             $query = new MgFeatureQueryOptions();
             $geomName = $layer->GetFeatureGeometryName();
             if ($xform != null) {
                 $sourceCs = $xform->GetSource();
                 $targetCs = $xform->GetTarget();
                 $invXform = $csFactory->GetTransform($targetCs, $sourceCs);
                 $txgeom = $geom->Transform($invXform);
                 $query->SetSpatialFilter($geomName, $txgeom, MgFeatureSpatialOperations::EnvelopeIntersects);
             } else {
                 $query->SetSpatialFilter($geomName, $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
             }
             for ($p = 0; $p < $clsProps->GetCount(); $p++) {
                 $propDef = $clsProps->GetItem($p);
                 $query->AddFeatureProperty($propDef->GetName());
             }
             //If we're rendering a vector tile for a single layer, we don't need these special attributes
             if ($layerNames == NULL || count($layerNames) > 1) {
                 $query->AddComputedProperty("_displayIndex", $layerCount - $i);
                 $query->AddComputedProperty("_layer", "'" . $layer->GetName() . "'");
                 $query->AddComputedProperty("_selectable", $layer->GetSelectable() ? "true" : "false");
             }
             $reader = $layer->SelectFeatures($query);
             $read = 0;
             while ($reader->ReadNext()) {
                 $read++;
                 if (!$reader->IsNull($geomName)) {
                     if (!$firstFeature) {
                         fwrite($fp, ",");
                     }
                     try {
                         $output = MgGeoJsonWriter::FeatureToGeoJson($reader, $agfRw, $xform, $idName);
                         fwrite($fp, $output);
                         $firstFeature = false;
                     } catch (MgException $ex) {
                     }
                 }
             }
             $reader->Close();
         }
     }
     fwrite($fp, ']}');
     fclose($fp);
     return $path;
 }