private void RenderMap() { winformsMap1.MapUnit = GeographyUnit.DecimalDegree; winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromHtml("#e6e5d1")); winformsMap1.CurrentExtent = new RectangleShape(-96.905564, 32.926216, -96.651506, 32.744942); WorldStreetsAndImageryOverlay worldStreetsAndImageryOverlay = new WorldStreetsAndImageryOverlay(); winformsMap1.Overlays.Add(worldStreetsAndImageryOverlay); ShapeFileFeatureLayer streetsLayer = new ShapeFileFeatureLayer(Path.Combine(rootPath, "DallasCounty-4326.shp")); streetsLayer.Open(); InMemoryFeatureLayer routingLayer = new InMemoryFeatureLayer(); routingLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.CreateSimpleStarStyle(GeoColor.SimpleColors.Red, 30); routingLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.FillSolidBrush = new GeoSolidBrush(GeoColor.FromArgb(100, GeoColor.StandardColors.Blue)); routingLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen.Color = GeoColor.StandardColors.Red; routingLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20; 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(-97.080185, 33.013491, -96.465213, 32.490127))); routingOverlay.Layers.Add("RoutingExtentLayer", routingExtentLayer); streetsLayer.Open(); Feature startRoad = streetsLayer.FeatureSource.GetFeatureById(txtStartId.Text, ReturningColumnsType.NoColumns); Feature startPoint = new Feature(startRoad.GetShape().GetCenterPoint().GetWellKnownBinary(), txtStartId.Text); routingLayer.InternalFeatures.Add(txtStartId.Text, startPoint); streetsLayer.Close(); winformsMap1.Refresh(); }