Latest Contributions by HuyHo

We are trying to determine whether two polyline intersects on our map, and if they do intersects, where do they cross each other.  When we use GeometryEngine.Intersects(line1, line2), it returns true.  However, when we use GeometryEngine.Intersection(line1, line2), it returns an empty geometry.  Are we using the correct method?  If not, please point us to the correct method to use.  Thanks. ... View more

We are seeing a display issue with one of the tile package that was built by our customer.  The tile package contains street and labels drawn on a transparent background so that this package can be used to overlay an aerial photo.  What we are seeing is that sometimes when you zoom in/out, the application would display the current LOD, but it also show the LOD above or below it (see screenshots).  When this happens, if we pan the map by moving side to side, then move back to the original area, it would correct itself.  Any idea on what could be causing this? This is seen in 10.2.7 SDK, we haven't seen it in the 100.x release. ... View more

In 10.2.x, you can activate the zoombox by holding down the SHIFT key while dragging your mouse.  This requires a two hand operation so it's a bit tricky when you try to operate a device (without multi-touch) inside a vehicle.  Is there a way to programmatically enable/disable this dragging zoom box mode? ... View more

What is the road map for the 10.2.x SDK for .NET?  Is Esri planning to release a fix/patch update for this version of the SDK in the near future?  We know that Esri is busy with development work to get the Quartz release out of the door.  But our products have been released to our customers and there are many bugs we are waiting on for fixes in this version of the SDK.  With Esri being so busy with the "new stuff", we feel like Esri has forgotten all about the users that are currently using the .NET SDK. Any insight on this would be very helpful for us to plan around. Thanks. ... View more

When the ArcGIS online MapViewer, I can add the World Traffic Service to my base map.  Is there a way I can incorporate this service layer into my .NET app? ... View more

When I try to convert a Lat/Long coordinate to a MapPoint (in NAD_1927_UTM_Zone_17N), I am getting two different results.  If I use GeometryEngine.Project() from a mapPoint in Wgs84 using lat/long values, I get the location in red.  When I use ConvertCoordinate.FromDecimalDegrees(), I get the blue point.  Why is there this difference?  I tried using ArcMap to locate lat/long, it gives the same location as the ConvertCoordinate class.  Funny thing is when I tried it with Google, it matches the red point.  So which is correct? double latitude = double.Parse(LatText.Text); double longitude = double.Parse(LongText.Text); SpatialReference spref = new SpatialReference(2617); // NAD_1927_UTM_Zone_17N MapPoint baseMapPoint = new MapPoint(longitude, latitude, SpatialReferences.Wgs84); MapPoint mapPoint1 = GeometryEngine.Project(baseMapPoint, spref) as MapPoint; _graphic1.Geometry = mapPoint1; MapPoint mapPoint2 = ConvertCoordinate.FromDecimalDegrees(string.Format("{0},{1}", latitude, longitude), spref); _graphic2.Geometry = mapPoint2;‍‍‍‍‍‍‍‍ ... View more