private InMemoryGridFeatureLayer GetGridFeatureLayer()
{
//Get the line breaks
Collection <double> isoLineBreaks = GridIsoLineLayer.GetIsoLineLevels(wellDepthPointData, Convert.ToInt32(txtGridIsoLineLevelCount.Text));
//Load a new GridFeatureLayer based on the current grid file
InMemoryGridFeatureLayer gridFeatureLayer = new InMemoryGridFeatureLayer(gridCellMatrix);
//Create a series of colors from blue to red that we will use for the breaks
Collection <GeoColor> colors = GeoColor.GetColorsInQualityFamily(GeoColor.StandardColors.Blue, GeoColor.StandardColors.Red, isoLineBreaks.Count, ColorWheelDirection.CounterClockwise);
//Create a class break style
ClassBreakStyle classBreakLineStyle = new ClassBreakStyle(gridFeatureLayer.DataValueColumnName);
//Setup a class break style based on the isoline levels and the colors
AreaStyle firstStyle = new AreaStyle(new GeoPen(GeoColor.FromArgb(50, colors[0]), 1), new GeoSolidBrush(GeoColor.FromArgb(50, colors[0])));
classBreakLineStyle.ClassBreaks.Add(new ClassBreak(double.MinValue, firstStyle));
for (int i = 1; i < colors.Count - 1; i++)
{
AreaStyle style = new AreaStyle(new GeoPen(GeoColor.FromArgb(50, colors[i]), 1), new GeoSolidBrush(GeoColor.FromArgb(50, colors[i])));
classBreakLineStyle.ClassBreaks.Add(new ClassBreak(isoLineBreaks[i], style));
}
gridFeatureLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(classBreakLineStyle);
gridFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
return(gridFeatureLayer);
}
private void mapView_Loaded(object sender, RoutedEventArgs e)
{
//Load the well depth points and depth data from a text file into the dictionary
//We cache this at the class level to prevent form loading it multiple times
string wellDepthPointDataFilePath = SampleHelper.Get("GrayCountyIrrigationWellDepths.csv");
Dictionary <PointShape, double> wellDepthPointData = GetWellDepthPointDataFromCSV(wellDepthPointDataFilePath);
//Get the current extent since we use that to gerenate the grid. Of course this is just for
//the demo and in the real world you can use any extent you like
RectangleShape currentDrawingExtent = MapUtil.GetDrawingExtent(mapView.CurrentExtent, (float)mapView.ActualWidth, (float)mapView.ActualHeight);
//Calculate the cell size based on how many rows and columns you specified
double cellSize = Math.Min(currentDrawingExtent.Width / 4, currentDrawingExtent.Height / 4);
//Greate the grid definition based on the extent, cell size etc.
GridDefinition gridDefinition = new GridDefinition(currentDrawingExtent, cellSize, -9999, wellDepthPointData);
//Generate the grid based on Inverse Distance Weighted interpolation model. You can define your own model if needed.
GridCell[,] gridCellMatrix = GridFeatureSource.GenerateGridMatrix(gridDefinition, new InverseDistanceWeightedGridInterpolationModel(2, double.MaxValue));
//Load a new GridFeatureLayer based on the current grid file
InMemoryGridFeatureLayer gridFeatureLayer = new InMemoryGridFeatureLayer(gridCellMatrix);
gridFeatureLayer.Open();
var currentExtent = gridFeatureLayer.GetBoundingBox();
gridFeatureLayer.Close();
gridFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyle.CreateSimpleAreaStyle(GeoColors.Transparent, GeoColors.Black);
gridFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
//Add the grid layer, the grid cells, and the well points to the map
LayerOverlay layerOverlay = new LayerOverlay();
layerOverlay.Layers.Add(gridFeatureLayer);
mapView.ZoomLevelSet = new ThinkGeoCloudMapsZoomLevelSet();
mapView.CurrentExtent = currentExtent;
mapView.MapUnit = GeographyUnit.Meter;
mapView.Overlays.Add(layerOverlay);
mapView.Refresh();
}
