private void RenderMap()
{
winformsMap1.MapUnit = GeographyUnit.DecimalDegree;
winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromHtml("#e6e5d1"));
winformsMap1.CurrentExtent = new RectangleShape(-97.763384, 30.299707, -97.712382, 30.259309);
ShapeFileFeatureLayer austinstreetsLayer = new ShapeFileFeatureLayer(@"..\..\SampleData\Austinstreets.shp");
austinstreetsLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(GetRoadStyle());
austinstreetsLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
LayerOverlay austinstreetsOverlay = new LayerOverlay();
austinstreetsOverlay.Layers.Add("AustinstreetsLayer", austinstreetsLayer);
winformsMap1.Overlays.Add("AustinstreetsOverlay", austinstreetsOverlay);
// The layer for rendering routing result
InMemoryFeatureLayer routingLayer = new InMemoryFeatureLayer();
routingLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen = new GeoPen(GeoColor.FromArgb(100, GeoColor.StandardColors.Purple), 5);
routingLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
LayerOverlay routingOverlay = new LayerOverlay();
routingOverlay.Layers.Add("RoutingLayer", routingLayer);
winformsMap1.Overlays.Add("RoutingOverlay", routingOverlay);
// The layer for rendering start and end points
InMemoryFeatureLayer stopLayer = new InMemoryFeatureLayer();
stopLayer.Open();
stopLayer.Columns.Add(new FeatureSourceColumn("Order"));
stopLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = new PointStyle(PointSymbolType.Square, new GeoSolidBrush(GeoColor.SimpleColors.LightGreen), new GeoPen(GeoColor.SimpleColors.Black), 12);
stopLayer.ZoomLevelSet.ZoomLevel01.DefaultTextStyle = TextStyles.Urban1("Order");
stopLayer.ZoomLevelSet.ZoomLevel01.DefaultTextStyle.XOffsetInPixel = -4;
stopLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
LayerOverlay stopOverlay = new LayerOverlay();
stopOverlay.Layers.Add("StopLayer", stopLayer);
winformsMap1.Overlays.Add("StopOverlay", stopOverlay);
// Add start and end points to the layer
RoutingSource routingSource = new RtgRoutingSource(@"..\..\SampleData\Austinstreets.rtg");
routingSource.Open();
austinstreetsLayer.Open();
Feature startRoad = austinstreetsLayer.FeatureSource.GetFeatureById(txtStartId.Text, ReturningColumnsType.NoColumns);
Feature startPoint = new Feature(startRoad.GetShape().GetCenterPoint().GetWellKnownBinary());
startPoint.ColumnValues["Order"] = "1";
stopLayer.InternalFeatures.Add(startPoint);
Feature endRoad = austinstreetsLayer.FeatureSource.GetFeatureById(txtEndId.Text, ReturningColumnsType.NoColumns);
Feature endPoint = new Feature(endRoad.GetShape().GetCenterPoint().GetWellKnownBinary());
endPoint.ColumnValues["Order"] = "2";
stopLayer.InternalFeatures.Add(endPoint);
routingSource.Close();
austinstreetsLayer.Close();
winformsMap1.Refresh();
}
