OpenSpace. SupportService

Queries the API support service for items such as tile usage counts.

Example

The following example shows how to add the large map control to the map:

var osMap, screenOverlay, supportService;

function init()
{
  osMap = new OpenSpace.Map('map');

  // Add a screen Overlay
  screenOverlay = new OpenSpace.Layer.ScreenOverlay("tilecount");
  screenOverlay.setPosition(new OpenLayers.Pixel(10, 480));
  osMap.addLayer(screenOverlay);

  osMap.setCenter(new OpenSpace.MapPoint(438760,114760), 8);

  // Create a new service
  supportService = new OpenSpace.SupportService();

  // Register to query service when map is moved
  osMap.events.register("moveend", osMap, function(e) {
            supportService.getTileCount(results);
  });
}

function results(tilesUsed, maxTiles)
{
  // Draw results on screen in overlay
  screenOverlay.setHTML("<DIV style=\"width: 250px; height=75px; color: white; background-color: gray; font-size: 20px\">" +
                        "Tiles Used: " + tilesUsed + " of " + maxTiles + " </DIV>");
}