本文整理汇总了C#中MapView.UpdateLayout方法的典型用法代码示例。如果您正苦于以下问题：C# MapView.UpdateLayout方法的具体用法？C# MapView.UpdateLayout怎么用？C# MapView.UpdateLayout使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MapView的用法示例。
在下文中一共展示了MapView.UpdateLayout方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: PrintMap
/// <summary>
// Default print method of the map control,
/// Exports a map to a byte array
/// </summary>
/// <param name="mapView">the mapview containing the content</param>
/// <param name="useScaling">true, if the contend should be scaled to fit the image size:
/// false, if the map scale shouldn't be changed.</param>
/// <param name="description"></param>
public void PrintMap(MapView mapView, bool useScaling, string description)
{
// Open the print dialog.
PrintDialog print = new PrintDialog();
if (print.ShowDialog() == false)
return;
// Initialize variables.
PrintCapabilities capabilities = print.PrintQueue.GetPrintCapabilities(print.PrintTicket);
System.Windows.Media.Transform oldTransform = null;
if (useScaling)
{
// Set the transform object for scaling.
double scale = System.Math.Min(capabilities.PageImageableArea.ExtentWidth / mapView.ActualWidth,
capabilities.PageImageableArea.ExtentHeight / mapView.ActualHeight);
oldTransform = mapView.LayoutTransform;
mapView.LayoutTransform = new ScaleTransform(scale, scale);
}
// Set the size.
Size oldSize = new Size(mapView.ActualWidth, mapView.ActualHeight);
Size sz = new Size(capabilities.PageImageableArea.ExtentWidth, capabilities.PageImageableArea.ExtentHeight);
mapView.Measure(sz);
((UIElement)mapView).Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight), sz));
// Print.
mapView.Printing = true;
mapView.UpdateLayout();
print.PrintVisual(mapView, description);
mapView.Printing = false;
// Reset the old values.
if (useScaling)
mapView.LayoutTransform = oldTransform;
mapView.Measure(oldSize);
((UIElement)mapView).Arrange(new Rect(new Point(0, 0), oldSize));
}示例2: ExportMap
/// <summary>
/// Exports a map to a byte array
/// </summary>
/// <param name="mapView">the mapview containing the content</param>
/// <param name="sz">the size of the output image</param>
/// <param name="useScaling">true, if the contend should be scaled to fit the image size:
/// false, if the map scale shouldn't be changed.</param>
/// <returns>The (jpg) image as byte array</returns>
public byte[] ExportMap(MapView mapView, Size sz, bool useScaling)
{
System.Windows.Media.Transform oldTransform = null;
if (useScaling)
{
// Set the transform object for scaling.
double scale = System.Math.Min(sz.Width / mapView.ActualWidth,
sz.Height / mapView.ActualHeight);
oldTransform = mapView.LayoutTransform;
mapView.LayoutTransform = new ScaleTransform(scale, scale);
}
// Set the size.
Size oldSize = new Size(mapView.ActualWidth, mapView.ActualHeight);
mapView.Measure(sz);
((UIElement)mapView).Arrange(new Rect(new Point(0, 0), sz));
// Print.
mapView.Printing = true;
mapView.UpdateLayout();
RenderTargetBitmap rtb = new RenderTargetBitmap((int)sz.Width, (int)sz.Height, 96d, 96d, PixelFormats.Default);
rtb.Render(mapView);
mapView.Printing = false;
// Reset the old values.
if (useScaling)
mapView.LayoutTransform = oldTransform;
mapView.Measure(oldSize);
((UIElement)mapView).Arrange(new Rect(new Point(0, 0), oldSize));
// encode image
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(rtb));
var ms = new MemoryStream();
encoder.Save(ms);
ms.Close();
return ms.ToArray();
}