VECollection of Polygons

VECollection of Polygons

• Sianspheric

  At this point, VECollections are only editible from within the Live Local site; we don't have programmatic access to the individual members of a collection.

  Although I don't know for sure what the reason is, one logical guess is: you have to be signed in to create and edit a collection (otherwise, you would be able to alter someone else's collections!). So, you'd have to implement Passport (sorry, Live ID) integration in your site first. I suppose if you are really interested in doing this, you can wait for the LiveID APIs to be released (http://dev.live.com/liveid/landing.aspx app=liveid) later this year.

  
  

• MatthewRay

  Yep, you are right in that case a login would be necessary!
  But I actually did not meen to edit the VECollection itself... just want to save the single points of a polygon in my database for reuse.
  But finally I found it much easier to implement a kind of "polygon drawing" function on my own, so i don't have to go through the VECollection story ;-)
  see JS code below for drawing a polyline step by step. but at the point having all my VELatLong points saved in the JS array I'm not sure how to pass the data back to the server.
  does someone know another solution than AJAX, as i'm not yet that familiar with it :-(
  
  thanks...
  I'm done for today - gonna have a beer ;-)
  
  cheers hafi
  
  ------- Javascript part for drawing a polyline step by step
  

  // CALLBACK FOR ONCLICK EVENT
    function onMouseClick(e) {
      if((pinID > 0) && (polID > 0)) {
        map.DeletePushpin(pinID-1);
        map.DeletePolyline(polID-1);
      }
      array[pinID] = e.view.LatLong;
      drawPoly(polID, array, 2, new VEColor(255,0,0,1));
      map.AddPushpin(new VEPushpin(pinID, e.view.LatLong, null, "Last Point of Polygon", "<a href=\endPolyline()\">End Polyline here</a><br/><a href=\closePolygon(" + new VELatLong(e.view.LatLong) + ")\">Close Polygon here</a>"));
      pinID++;
    }
    
    // SET THE END OF THE POLYLINE
    function endPolyline() {
      map.DetachEvent("onclick", onMouseClick);
      map.DeleteAllPushpins();
    }
    
    // FINISHES UP THE POLYGON BY DRAWING THE LINE BACK TO THE STARTING POINT
    function closePolygon(latlong) {
      map.DetachEvent("onclick", onMouseClick);
      map.DeleteAllPushpins();
      array[pinID] = array[0];
      drawPoly(polID, array, 3, new VEColor(0,255,0,1));
    }
    
    // DRAWS A POLYLINE ON THE MAP
    function drawPoly(id,points,width,color) {
      var poly = new VEPolyline(id,points);
      poly.SetWidth(width);
      poly.SetColor(color);
      map.AddPolyline(poly);
      polID++;
    }

  ------- Javascript part for drawing a polyline step by step
  
  
  
  
• VECollection of Polygons