private void SetupMapWithBlankPage()
{
// Setup the map unit, you want to always use feet or meters for the printer layout map.
mapView.MapUnit = GeographyUnit.Meter;
// Here we create the default zoom levels for the sample. We have pre-created a PrinterZoomLevelSet
// That pre-defines commonly used zoom levels based on percentages of zoom
mapView.ZoomLevelSet = new PrinterZoomLevelSet(mapView.MapUnit, PrinterHelper.GetPointsPerGeographyUnit(mapView.MapUnit));
// Here we set the background color to gray so there is contrast with the white page
mapView.Background = System.Windows.Media.Brushes.White;
// Create the PrinterInteractiveOverlay to contain all of the PrinterLayers.
// The interactive overlay allows the layers to be interacted with
PrinterInteractiveOverlay printerOverlay = new PrinterInteractiveOverlay();
mapView.InteractiveOverlays.Add("PrintPreviewOverlay", printerOverlay);
mapView.InteractiveOverlays.MoveToBottom("PrintPreviewOverlay");
// Create the PagePrinterLayer which shows the page boundary and is the area the user will
// arrange all of the other layer on top of.
PagePrinterLayer pagePrinterLayer = new PagePrinterLayer(PrinterPageSize.AnsiA, PrinterOrientation.Portrait);
pagePrinterLayer.Open();
pagePrinterLayer.BackgroundMask = new AreaStyle(new GeoPen(GeoColors.LightGray, 1), GeoBrushes.White);
printerOverlay.PrinterLayers.Add("PageLayer", pagePrinterLayer);
// Get the pages extent, slightly scale it up, and then set that as the default current extent
mapView.CurrentExtent = pagePrinterLayer.GetPosition().GetBoundingBox();
// Set the minimum sscale of the map to the last zoom level
mapView.MinimumScale = mapView.ZoomLevelSet.ZoomLevel20.Scale;
}
private RectangleShape GetPageBoundingBox(PrintingUnit unit)
{
// This helper method gets the pages bounding box in the unit requested
PrinterInteractiveOverlay printerInteractiveOverlay = (PrinterInteractiveOverlay)mapView.InteractiveOverlays["PrintPreviewOverlay"];
PagePrinterLayer pagePrinterLayer = (PagePrinterLayer)printerInteractiveOverlay.PrinterLayers["PageLayer"];
return(pagePrinterLayer.GetPosition(unit));;
}
protected override void DrawTileCore(GeoCanvas geoCanvas)
{
base.DrawTileCore(geoCanvas);
if (gridLayer != null)
{
PagePrinterLayer pagePrinterLayer = PrinterLayers.OfType <PagePrinterLayer>().FirstOrDefault();
if (pagePrinterLayer != null)
{
if (!gridLayer.IsOpen)
{
gridLayer.Open();
}
gridLayer.SetPosition(pagePrinterLayer.GetPosition());
gridLayer.Draw(geoCanvas, new Collection <SimpleCandidate>());
}
}
}
