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Driving Distance Calculation when Latitude longitude of two points are provided

#1

Hi,


Is it possible to calculate Driving distance between two points when Latitude longitude of two points are provided?


thanks in advance


Regards,


Govind M. Kotkundwar



#2

govind， 



Thank you using the Routing product, if you have installed routing How Do I Samples, you can find a sample named Get Shortest Path By Coordinates. 

How Do I Samples-->Get Shortest Path By Coordinates. 



If not, please have a look at the code below, I hope it can resolve your problem: 


using System;   
using System.Globalization;   
using System.Windows.Forms;   
using ThinkGeo.MapSuite.Core;   
using ThinkGeo.MapSuite.DesktopEdition;   
using ThinkGeo.MapSuite.Routing;   
  
namespace HowDoISamples   
{   
    public class GetShortestPathByCoordinates : UserControl   
    {   
        public GetShortestPathByCoordinates()   
        {   
            InitializeComponent();   
        }   
  
        private void UserControl_Load(object sender, EventArgs e)   
        {   
            RenderMap();   
        }   
  
        private void btnRoute_Click(object sender, EventArgs e)   
        {   
            RoutingSource routingSource = new RtgRoutingSource(@"..\..\..\SampleData\Austinstreets.rtg");   
            ShapeFileFeatureSource featureSource = new ShapeFileFeatureSource(@"..\..\..\SampleData\Austinstreets.shp");   
  
            RoutingEngine routingEngine = new RoutingEngine(routingSource, featureSource);   
            RoutingLayer routingLayer = (RoutingLayer)((LayerOverlay)winformsMap1.Overlays["RoutingOverlay"]).Layers["RoutingLayer"];   
            RoutingResult routingResult = routingEngine.GetRoute(routingLayer.StartPoint, routingLayer.EndPoint);   
            routingLayer.Routes.Clear();   
            routingLayer.Routes.Add(routingResult.Route);   
  
            winformsMap1.Refresh(winformsMap1.Overlays["RoutingOverlay"]);   
        }   
  
        private void RenderMap()   
        {   
            winformsMap1.MapUnit = GeographyUnit.DecimalDegree;   
            winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromHtml("#e6e5d1"));   
            winformsMap1.CurrentExtent = new RectangleShape(-97.7489551588135, 30.3043988996582, -97.6854404493408, 30.2590802961426);   
  
            WorldMapKitWmsDesktopOverlay worldMapKitsOverlay = new WorldMapKitWmsDesktopOverlay();   
            winformsMap1.Overlays.Add(worldMapKitsOverlay);   
  
            ShapeFileFeatureLayer austinstreetsLayer = new ShapeFileFeatureLayer(@"..\..\..\SampleData\Austinstreets.shp");   
            austinstreetsLayer.Open();   
  
            string[] startCoordinates = txtStartCoordinate.Text.Split(',');   
            PointShape startPoint = new PointShape(double.Parse(startCoordinates[0], CultureInfo.InvariantCulture), double.Parse(startCoordinates[1], CultureInfo.InvariantCulture));   
            string[] endCoordinates = txtEndCoordinate.Text.Split(',');   
            PointShape endPoint = new PointShape(double.Parse(endCoordinates[0], CultureInfo.InvariantCulture), double.Parse(endCoordinates[1], CultureInfo.InvariantCulture));   
  
            RoutingLayer routingLayer = new RoutingLayer();   
            routingLayer.StartPoint = startPoint;   
            routingLayer.EndPoint = endPoint;   
            LayerOverlay routingOverlay = new LayerOverlay();   
            routingOverlay.Layers.Add("RoutingLayer", routingLayer);   
            winformsMap1.Overlays.Add("RoutingOverlay", routingOverlay);   
  
            InMemoryFeatureLayer routingExtentLayer = new InMemoryFeatureLayer();   
            routingExtentLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = new AreaStyle(new GeoPen(GeoColor.SimpleColors.Green));   
            routingExtentLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;   
            routingExtentLayer.InternalFeatures.Add(new Feature(new RectangleShape(-97.815409, 30.369949, -97.657999, 30.217922)));   
            routingOverlay.Layers.Add("RoutingExtentLayer", routingExtentLayer);   
  
            winformsMap1.Refresh();   
        }   
    }   
}  



Any more questions please feel free to let me know. 



Regards, 



Gary



#3

Hi Gary, 
  
 where can i get the shape as well as rtg files for route throughout whole of America continent?  
 Because I have got a situation where the route have to be drawn in any part of The America and when ever the coordinate values exceeds i get an error saying out of bounds. 
  
 Regards, 
  
 Govind M. Koktundwar

#4

govind, 
  
 You can build the rtg file of American, please  see How Do I Samples–>Building Routing Data. 
  
 Regards, 
  
 Gary