Digitizing and Redlining ...sample code.

[Maciej Skorczewski]

hi all!


I get x,y coorinates from user who cliked on map (he can add new point 
to map like Hotels, Pubs etc.)

then i send it into php script (code below)


It works but not to end:


PROBLEMS:

1. New marker-symbol point is not in cliked point (it is upper-right 
above my x,y coorinates)

2. when i want add another marker-symbol , the old disappears (so it is 
still one marker)

So what is wrong whit this.


Can anybody help me?


Maciek


<?

// coordiantes of cliked point of map (user can add new point to map)
// it comes form javascript ,

$x=$_GET['x'];
$y=$_GET['y'];


require_once 'utilityfunctions.php';

//this file come form sample aplication Sheboygan
//so look there what is inside

require_once 'findparcelfunctions.php';

require_once('../common.php');
require_once($webExtensionsDirectory . 
'www/mapviewerphp/layerdefinitionfactory.php');

try
{
//---------------------------------------------------//
     // Initialize
     MgInitializeWebTier($webconfigFilePath);
     $mgSessionId = ($_SERVER['REQUEST_METHOD'] == 
"POST")?$_POST['SESSION']: $_GET['SESSION'];
     $userInfo = new MgUserInformation($mgSessionId);
     $siteConnection = new MgSiteConnection();
     $siteConnection->Open($userInfo);



     $parcelMarkerFeatureSourceId = new 
MgResourceIdentifier("Session:".$mgSessionId."//PropertyMarker.FeatureSource");
     $parcelMarkerCommands = new MgFeatureCommandCollection();
     $resourceService = 
$siteConnection->CreateService(MgServiceType::ResourceService);
     $featureService = 
$siteConnection->CreateService(MgServiceType::FeatureService);

     //---------------------------------------------------//
     // Open the map
     $map = new MgMap();
     $map->Open($resourceService, 'town');

     $parcelMarkerLayer = GetLayerByName($map,'ParcelMarker');
          if ($parcelMarkerLayer == null)
         {
             CreateParcelMarkerFeatureSource($featureService, 
$parcelMarkerFeatureSourceId);
             $parcelMarkerLayer = 
CreateParcelMarkerLayer($resourceService, $parcelMarkerFeatureSourceId, 
$mgSessionId);
             $map->GetLayers()->Insert(0, $parcelMarkerLayer);
         }
         else
         {
             $parcelMarkerCommands->Add(new 
MgDeleteFeatures('ParcelMarker', "ID like '%'"));
         }


   //Creating the point
      $geometryFactory = new MgGeometryFactory();
      $coordinate = $geometryFactory->CreateCoordinateXY($x, $y);
      $point = $geometryFactory->CreatePoint($coordinate);


   //Define a property collection
   $geometryReaderWriter = new MgAgfReaderWriter();
     $properties = new MgPropertyCollection();
   $properties->Add(new MgStringProperty('Owner','Hotel'));
   $properties->Add(new MgGeometryProperty('Location', 
$geometryReaderWriter->Write($point)));

   //Create an insert command for this property.
   $parcelMarkerCommands->Add(new MgInsertFeatures('ParcelMarker', 
$properties));

     // If the parcel command set is non empty, then call the
   // UpdateFeatures method to apply the commands to the
   // temporary feature source. Then ensure the Parcel Marker
   // Layer is visible and force a refresh.

   if ($parcelMarkerCommands->GetCount() > 0)
        {
          $featureService->UpdateFeatures($parcelMarkerFeatureSourceId, 
$parcelMarkerCommands, false);
          $parcelMarkerLayer->SetVisible(true);




          //$parcelMarkerLayer->ForceRefresh();
          $sessionIdName = "Session:$mgSessionId//town.Map";
          $sessionResourceID = new MgResourceIdentifier($sessionIdName);
          $sessionResourceID->Validate();
          $map->Save($resourceService, $sessionResourceID);
          $mapUpdated = false;


        }
        else
        {
         echo '';
        }

}
catch (MgException $e)
{
     echo "<script language=\"javascript\" type=\"text/javascript\"> \n";
     echo "    alert(\" " . $e->GetMessage() . " \"); \n";
     echo "</script> \n";
}




?>
-- 
Maciej Skorczewski