private function OutputGeoJson($schemas) { $read = 0; $agfRw = new MgAgfReaderWriter(); $this->writer->SetHeader("Content-Type", MgMimeType::Json); $this->writer->StartChunking(); $output = '{ "type": "FeatureCollection", "features": [' . "\n"; $clsDef = $this->reader->GetClassDefinition(); $clsIdProps = $clsDef->GetIdentityProperties(); $idProp = NULL; if ($clsIdProps->GetCount() == 1) { $idProp = $clsIdProps->GetItem(0); } $propCount = $this->reader->GetPropertyCount(); $firstFeature = true; while ($this->reader->ReadNext()) { $read++; if ($this->limit > 0 && $read > $this->limit) { break; } if (!$firstFeature) { $output .= ","; } $output .= MgGeoJsonWriter::FeatureToGeoJson($this->reader, $agfRw, $this->transform, $idProp != NULL ? $idProp->GetName() : NULL); $this->writer->WriteChunk($output); $output = ""; $firstFeature = false; } $output .= "]}"; $this->writer->WriteChunk($output); $this->writer->EndChunking(); $this->reader->Close(); }
private function PutVectorTileXYZ($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; }