function CreateFeatureSource($map, $dataSourceId, $featureName, $featureService, $geomType, $schema = "")
{
//create feature source
$classDef = new MgClassDefinition();
$classDef->SetName($featureName);
$classDef->SetDescription($featureName . " feature layer");
$classDef->SetDefaultGeometryPropertyName("GEOM");
//Set KEY property
$prop = new MgDataPropertyDefinition("KEY");
$prop->SetDataType(MgPropertyType::Int32);
$prop->SetAutoGeneration(true);
$prop->SetReadOnly(true);
$classDef->GetIdentityProperties()->Add($prop);
$classDef->GetProperties()->Add($prop);
$prop = new MgGeometricPropertyDefinition("GEOM");
$prop->SetGeometryTypes($geomType);
$classDef->GetProperties()->Add($prop);
//Create the schema
if ($schema == "") {
$schema = "DrawToolSchema";
}
$schema = new MgFeatureSchema($schema, "Temporary draw layer schema");
$schema->GetClasses()->Add($classDef);
//finally, creation of the feature source
$params = new MgCreateSdfParams("LatLong", GetMapSRS($map), $schema);
$featureService->CreateFeatureSource($dataSourceId, $params);
}
/* if extending the current selection */
$bExtendSelection = isset($_REQUEST['extendselection']) && strcasecmp($_REQUEST['extendselection'], 'true') == 0;
if ($bExtendSelection) {
$aLayerSelections = array();
$selection->Open($resourceService, $mapName);
$aLayers = selectionToArray($selection, array());
}
$bComputedProperties = isset($_REQUEST['computed']) && strcasecmp($_REQUEST['computed'], 'true') == 0;
$bQueryHiddenLayers = isset($_REQUEST['queryHiddenLayers']) && strcasecmp($_REQUEST['queryHiddenLayers'], 'true') == 0;
/*holds selection array*/
$properties = NULL;
$properties->layers = array();
/* Get the map SRS - we use this to convert distances */
$srsFactory = new MgCoordinateSystemFactory();
//safely get an SRS ... (in Utilities)
$srsDefMap = GetMapSRS($map);
$srsMap = $srsFactory->Create($srsDefMap);
$mapLayers = $map->GetLayers();
$bAllLayers = false;
$nLayers = count($layers);
if ($nLayers == 0) {
$nLayers = $mapLayers->GetCount();
$bAllLayers = true;
}
for ($i = 0; $i < $nLayers; $i++) {
try {
if (!$bAllLayers) {
$layerObj = $mapLayers->GetItem($layers[$i]);
} else {
$layerObj = $mapLayers->GetItem($i);
}
*****************************************************************************/
include 'Common.php';
include 'Utilities.php';
try {
if (!isset($_REQUEST['session']) || !isset($_REQUEST['mapname']) || !isset($_REQUEST['x1']) || !isset($_REQUEST['y1']) || !isset($_REQUEST['x2']) || !isset($_REQUEST['y2'])) {
echo "<Error>Arguments missing </Error>";
exit;
}
$x1 = $_REQUEST['x1'];
$y1 = $_REQUEST['y1'];
$x2 = $_REQUEST['x2'];
$y2 = $_REQUEST['y2'];
$map = new MgMap();
$map->Open($resourceService, $mapName);
$srsFactory = new MgCoordinateSystemFactory();
$srs = GetMapSRS($map);
$srsMap = $srsFactory->Create($srs);
$srsType = $srsMap->GetType();
if ($srsType == MgCoordinateSystemType::Geographic) {
$distance = $srsMap->MeasureGreatCircleDistance($x1, $y1, $x2, $y2);
} else {
$distance = $srsMap->MeasureEuclideanDistance($x1, $y1, $x2, $y2);
}
$distance = $srsMap->ConvertCoordinateSystemUnitsToMeters($distance);
header('Content-type: text/x-json');
header('X-JSON: true');
echo "{distance:{$distance}}";
exit;
} catch (MgException $e) {
echo "last error";
echo "ERROR: " . $e->GetMessage() . "\n";