private void coll_PointChanged(object sender, EventArgs e)
{
if (this.Parts.Contains(sender as Point2DCollection))
{
savedBounds = new Rectangle2D();
base.RaiseGeometryChanged();
}
}
/// <summary>${utility_JsonHelper_method_FromRectangle2D_D}</summary>
public static string FromRectangle2D(Rectangle2D rectangle2D)
{
if (Rectangle2D.IsNullOrEmpty(rectangle2D))
{
return "{}";
}
return string.Format(CultureInfo.InvariantCulture, "{{\"rightTop\":{{\"y\":{0},\"x\":{1}}},\"leftBottom\":{{\"y\":{2},\"x\":{3}}}}}", rectangle2D.Top, rectangle2D.Right, rectangle2D.Bottom, rectangle2D.Left);
}
internal GeoLineClip(Rectangle2D clipBox)
{
if (Rectangle2D.IsNullOrEmpty(clipBox))
{
boundary = Rectangle2D.Empty;
}
else
{
this.boundary = clipBox;
}
}
internal PolylineElementClip(Rectangle2D clipBox)
{
if (Rectangle2D.IsNullOrEmpty(clipBox))
{
boundary = Rectangle2D.Empty;
}
else
{
this.boundary = clipBox;
}
}
private void Parts_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
RemoveGeoPointCollectionEvents(e.OldItems);
}
if (e.NewItems != null)
{
AddGeoPointCollectionEvents(e.NewItems);
}
savedBounds = new Rectangle2D();
base.RaiseGeometryChanged();
}
private void ArrangeFeature(FeatureElement elm, Rectangle2D clipBox, Point2D origin, double resolution)
{
if (elm.Visibility != Visibility.Collapsed)
{
Rectangle2D b = GetBounds(elm);
if (!Rectangle2D.IsNullOrEmpty(b))
{
double x = (b.Left - origin.X) / resolution;
double y = (origin.Y - b.Top) / resolution;
if (((b.Width > 0.0) || (b.Height > 0.0)) && (elm.PathGeometry != null))
{
double ratio = elm.Resolution / resolution;
this.SetClip(elm, clipBox, resolution);
if (elm.ClippedGeometry != null)
{
b = elm.ClippedGeometry.Bounds;
if (Rectangle2D.IsNullOrEmpty(b))
{
return;
}
x = (b.Left - origin.X) / resolution;
y = (origin.Y - b.Top) / resolution;
}
if (elm.PathGeometry.Transform is ScaleTransform)
{
(elm.PathGeometry.Transform as ScaleTransform).ScaleX = (elm.PathGeometry.Transform as ScaleTransform).ScaleY = ratio;
}
else
{
elm.PathGeometry.Transform = new ScaleTransform { ScaleX = ratio, ScaleY = ratio };
}
double num4 = ((b.Width / elm.Resolution) * ratio) + 10.0;
double num5 = ((b.Height / elm.Resolution) * ratio) + 10.0;//这也已经加了10.0
num4 = Math.Min(32000.0, num4);
num5 = Math.Min(32000.0, num5);
elm.Arrange(new Rect(x, y, num4, num5));
}
else
{
elm.Arrange(new Rect(new Point(x, y), elm.DesiredSize));
}
}
}
}
protected override Size ArrangeOverride(Size finalSize)
{
Point2D origin = this.Origin;
double resolution = this.Resolution;
Rectangle2D clipBox = new Rectangle2D(
origin.X - (resolution * 4191.0),
origin.Y - (resolution * 4191.0),
origin.X + (resolution * 4191.0),
origin.Y + (resolution * 4191.0));
foreach (UIElement element in base.Children)
{
if (element.Visibility == Visibility.Collapsed)
{
continue;
}
this.ArrangeFeature(element as FeatureElement, clipBox, origin, resolution);
}
return base.ArrangeOverride(finalSize);
}
/// <summary>${ui_action_ZoomOut_event_OnPointerReleased_D}</summary>
public override void OnPointerReleased(Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
{
if (Rectangle == null)
{
return;
}
Rectangle2D zoomBounds = (Rectangle2D)Rectangle.GetValue(ElementsLayer.BBoxProperty);
if (Rectangle2D.IsNullOrEmpty(zoomBounds) || zoomBounds.Width == 0.0 || zoomBounds.Height == 0.0)
{
return;
}
Point2D center = zoomBounds.Center;
Rectangle2D currentBounds = Map.ViewBounds;
double whRatioCurrent = currentBounds.Width / currentBounds.Height;
double whRatioZoomBox = zoomBounds.Width / zoomBounds.Height;
Rectangle2D newBounds = Rectangle2D.Empty;
if (whRatioZoomBox > whRatioCurrent) // use width
{
double multiplier = currentBounds.Width / zoomBounds.Width;
double newWidth = currentBounds.Width * multiplier;
newBounds = new Rectangle2D(new Point2D(center.X - (newWidth / 2), center.Y - (newWidth / 2)),
new Point2D(center.X + (newWidth / 2), center.Y + (newWidth / 2)));
}
else// use height
{
double multiplier = currentBounds.Height / zoomBounds.Height;
double newHeight = currentBounds.Height * multiplier;
newBounds = new Rectangle2D(new Point2D(center.X - (newHeight / 2), center.Y - (newHeight / 2)),
new Point2D(center.X + (newHeight / 2), center.Y + (newHeight / 2)));
}
if (!Rectangle2D.IsNullOrEmpty(newBounds))
{
Map.ZoomTo(newBounds);
}
base.OnPointerReleased(e);
}
private static Rectangle2D StringToRectangle2D(string value)
{
if (string.IsNullOrEmpty(value))
{
return Rectangle2D.Empty;
}
string[] array = value.Split(new char[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (array.Length != 4)
{
return Rectangle2D.Empty;
}
bool success = true;
double[] valuesArray = new double[4];
for (int i = 0; i < 4; i++)
{
double convertValue = 0;
if (!double.TryParse(array[i], out convertValue))
{
success = false;
break;
}
else
{
valuesArray[i] = convertValue;
}
}
if (success)
{
Rectangle2D rectangle = new Rectangle2D(valuesArray[0], valuesArray[1], valuesArray[2], valuesArray[3]);
return rectangle;
}
else
{
return Rectangle2D.Empty;
}
}
/// <summary>${ui_action_DrawCircle_event_OnPointerMoved_D}</summary>
public override void OnPointerMoved(Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
{
if (isDrawing)
{
Point2D item = Map.ScreenToMap(e.GetCurrentPoint(Map).Position);
double width = Math.Abs(item.X - startPt.X);
double height = Math.Abs(startPt.Y - item.Y);
double r = Math.Sqrt(width * width + height * height);
this._radius = r;
Rectangle2D bounds = new Rectangle2D(startPt.X - r, startPt.Y - r, startPt.X + r, startPt.Y + r);//圆
ellipse.SetValue(ElementsLayer.BBoxProperty, bounds);
}
base.OnPointerMoved(e);
}
private void CalculateStartViewBounds(Size size)
{
if (!Rectangle2D.IsNullOrEmpty(cacheViewBounds) && Point2D.IsNullOrEmpty(origin))
{
Rectangle2D cacheBounds = cacheViewBounds;
double width = size.Width;
double height = size.Height;
double resWidth = cacheBounds.Width / width;
double resHeight = cacheBounds.Height / height;
mapResolution = (resHeight > resWidth) ? resHeight : resWidth;
double nearestLevelResolution = MathUtil.GetNearest(this.mapResolution, this.Resolutions, MinResolution, MaxResolution);
mapResolution = nearestLevelResolution;
targetResolution = this.mapResolution = MathUtil.MinMaxCheck(this.mapResolution, this.MinResolution, this.MaxResolution);
//origin = new Point2D(bounds.Left + bounds.Width * 0.5 - width * 0.5 * mapResolution, bounds.Top - bounds.Height * 0.5 + height * 0.5 * mapResolution);
origin = new Point2D(cacheBounds.Center.X - width * 0.5 * mapResolution, cacheBounds.Center.Y + height * 0.5 * mapResolution);
//地图的中心 加 减 ViewSize大小乘以分辨率 即 初始化Origin
cacheViewBounds = ViewBounds;//由origin和resolution重新算出来的VB赋给cacheVB，这是真正的VB
RaiseViewBoundsChanged();
}
}
private Rectangle2D GetFullViewBounds()
{
if (double.IsNaN(this.mapResolution))
{
return Rectangle2D.Empty;
}
Point2D point = ScreenToMap(new Point(0.0, 0.0));
Point2D point2 = ScreenToMap(new Point(0.0, currentSize.Height));
Point2D point3 = ScreenToMap(new Point(currentSize.Width, currentSize.Height));
Point2D point4 = ScreenToMap(new Point(currentSize.Width, 0.0));
if (Point2D.IsNullOrEmpty(point) || Point2D.IsNullOrEmpty(point2) || Point2D.IsNullOrEmpty(point3) || Point2D.IsNullOrEmpty(point4))
{
return Rectangle2D.Empty;
}
//TODO:直接union点
Rectangle2D pointBounds = new Rectangle2D(point, point);
Rectangle2D point2Bounds = new Rectangle2D(point2, point2);
Rectangle2D point3Bounds = new Rectangle2D(point3, point3);
Rectangle2D point4Bounds = new Rectangle2D(point4, point4);
Rectangle2D bounds = pointBounds;
bounds = bounds.Union(point2Bounds);
bounds = bounds.Union(point3Bounds);
bounds = bounds.Union(point4Bounds);
return bounds;
}
private void LoadLayerInView(bool useTransitions, Rectangle2D drawBounds, Layer layer)
{
if (!Rectangle2D.IsNullOrEmpty(drawBounds) && layer.IsInitialized && (layer.Error == null)
&& (layer.MinVisibleResolution <= targetResolution) && (layer.MaxVisibleResolution >= targetResolution)
&& layer.IsVisible && Layers.Contains(layer) && CoordinateReferenceSystem.Equals(layer.CRS, CRS, true))
{
layer.Update(new UpdateParameter()
{
UseTransitions = useTransitions,
Resolutions = Resolutions,
Resolution = mapResolution,
ViewBounds = drawBounds,
ViewSize = currentSize,
LayerOrigin = layer.Container.Origin
});
}
}
public static void SetBounds(DependencyObject o, Rectangle2D value)
{
o.SetValue(BoundsProperty, value);
}
private void children_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
if (!Rectangle2D.IsNullOrEmpty(this.fullBounds))
{
UpdateFullBounds(e.NewItems);
}
}
else
{
if (e.Action == NotifyCollectionChangedAction.Reset)
{
base.Container.Children.Clear();
}
else
{
base.Container.Children.Remove(e.OldItems[0] as UIElement);
}
this.fullBounds = Rectangle2D.Empty;
}
this.Invalidate();
}
private void RaiseTileLoad(Tile tile, Rectangle2D bounds)
{
if (TileLoaded != null)
{
TileLoadEventArgs loadTileArgs = new TileLoadEventArgs();
loadTileArgs.Column = tile.Column;
loadTileArgs.Level = tile.Level;
loadTileArgs.Row = tile.Row;
loadTileArgs.Bounds = bounds;
TileLoaded(this, loadTileArgs);
}
}
internal void SetClip(SuperMap.WinRT.Core.Geometry clippedGeometry, Rectangle2D clipbox)
{
this.ClippedGeometry = clippedGeometry;
this.ClipBox = clipbox;
this.InvalidatePath(this.Resolution, this.OriginX, this.OriginY);
}
private void RaiseViewBoundsChanged()
{
if (this.mapResizeThrottler != null)
{
this.mapResizeThrottler.Cancel();
}
EventHandler<ViewBoundsEventArgs> viewBoundsChanged = this.ViewBoundsChanged;
if (viewBoundsChanged != null)
{
Rectangle2D viewBounds = this.ViewBounds;
if (!Rectangle2D.IsNullOrEmpty(viewBounds) && this.previousViewBounds != viewBounds)
{
viewBoundsChanged(this, new ViewBoundsEventArgs(this.previousViewBounds, viewBounds));
this.raisePropertyChanged("ViewBounds");
}
this.previousViewBounds = viewBounds;
this.cacheViewBounds = viewBounds;
}
}
private void PanTo(Rectangle2D bounds, bool skipAnimation)
{
if ((this.panHelper != null) && (!Rectangle2D.IsNullOrEmpty(bounds)))
{
if (Popup.IsOpen)
{
Popup.IsOpen = false;
}
if (ZoomHelper != null)
{
ZoomHelper.Cancel();
}
Point2D center = bounds.Center;
Rectangle2D viewBounds = this.ViewBounds;
if (Rectangle2D.IsNullOrEmpty(previousViewBounds))
{
previousViewBounds = viewBounds;
}
if (!Rectangle2D.IsNullOrEmpty(viewBounds))
{
Point2D point2 = viewBounds.Center;
int offsetX = (int)Math.Round((double)((point2.X - center.X) / this.targetResolution));
int offsetY = (int)Math.Round((double)((center.Y - point2.Y) / this.targetResolution));
MapManipulator = MapManipulator.Program;
this.panHelper.DeltaPan(offsetX, offsetY, this.PanDuration);
}
}
}
private void panTo(Rectangle2D bounds)
{
PanTo(bounds, false);
}
private void LoadLayersInView(bool useTransitions, Rectangle2D drawBounds)
{
if ((this.Layers != null) && (!Rectangle2D.IsNullOrEmpty(drawBounds)))
{
foreach (Layer layer in this.Layers)
{
this.LoadLayerInView(useTransitions, drawBounds, layer);
}
}
}
/// <example>${mapping_ArbitraryLayer_method_setbbox_Example_D}<code inline="false" title="" description="" lang="CS"></code><code title="Example1" description="" lang="C#">Ellipse myellipse = new Ellipse();
/// Rectangle2D ellbounds = new Rectangle2D(left, bottom, right, top);
/// myellipse.SetValue(ElementsLayer.BBoxProperty, ellbounds);
/// this.ElementsLayer.AddChild(myellipse);</code><code title="Example2" description="" lang="CS"><ELLIPSE id=dxCrLf <SPAN x:Name="MyEllipse"></SPAN> namespace:ElementsLayer.BBox="left, bottom, right, top"&gt;
/// </ELLIPSE></code></example>
/// <summary>${mapping_ArbitraryLayer_method_setbbox_D}</summary>
/// <param name="obj">${mapping_ArbitraryLayer_method_setbbox_param_obj}</param>
/// <param name="value">${mapping_ArbitraryLayer_method_setbbox_param_value}</param>
public static void SetBBox(DependencyObject obj, Rectangle2D value)
{
obj.SetValue(BBoxProperty, value);
}
/// <summary>${mapping_ArbitraryLayer_method_addChild_UIElement_Rectangle2D_D}</summary>
/// <param name="element">${mapping_ArbitraryLayer_method_addChild_UIElement_pararm_element}</param>
/// <param name="bbox">${mapping_ArbitraryLayer_method_addChild_UIElement_Rectangle2D_param_bbox}</param>
public void AddChild(UIElement element, Rectangle2D bbox)
{
if (!(element is ShapeElement))
{
ElementsLayer.SetBBox(element, bbox);
}
Children.Add(element);
}
//当清空所有图层时,把Map的各项参数恢复默认值。
private void ResetMapStatus()
{
origin = Point2D.Empty;//保证了 ViewBounds = Rectangle2D.Empty;
mapResolution = targetResolution = double.NaN;
cacheViewBounds = Rectangle2D.Empty;//从world到长春
previousViewBounds = Rectangle2D.Empty;
if (layerCollectionContainer != null)
{
TranslateTransform renderTransform = layerCollectionContainer.RenderTransform as TranslateTransform;
renderTransform.X = 0;
renderTransform.Y = 0;
}
if (panHelper != null)
{
panHelper.Cancel();
}
CRS = null;
resolutions = null;
scales = null;
maxResolution = double.MaxValue;
minResolution = double.Epsilon;
maxScale = double.MaxValue;
minScale = double.Epsilon;
CloseToolTip();
fromLayers = false;
hasChanged = false;
RaiseViewBoundsChanged();
}
private void UpdateFullBounds(IEnumerable items)
{
foreach (object obj2 in items)
{
UIElement element = (UIElement)obj2;
Rectangle2D rect2D = GetBBox(element);
if (element is ShapeElement)
{
rect2D = ((ShapeElement)element).Bounds;
}
if (Rectangle2D.IsNullOrEmpty(fullBounds))
{
fullBounds = rect2D;
}
else
{
fullBounds = fullBounds.Union(rect2D);
}
}
}
//private void UpdateOvMap(object sender, ViewBoundsEventArgs e)
//{
// UpdateOvMap();
//}
#endregion
private void UpdateOvRect()
{
if (Map == null || ovMap == null || Rectangle2D.IsNullOrEmpty(ovMap.ViewBounds) || ovRect == null)
{
return;
}
Rectangle2D viewBounds = Map.ViewBounds;
if (Rectangle2D.IsNullOrEmpty(viewBounds))
{
ovRect.Visibility = Visibility.Collapsed;
return;
}
Point2D pt1 = new Point2D(viewBounds.Left, viewBounds.Top);
Point2D pt2 = new Point2D(viewBounds.Right, viewBounds.Bottom);
Point topLeft = ovMap.MapToScreen(pt1);
Point bottomRight = ovMap.MapToScreen(pt2);
if (!double.IsNaN(topLeft.X) || !double.IsNaN(topLeft.Y) || !double.IsNaN(bottomRight.X) || !double.IsNaN(bottomRight.Y))
{
ovRect.Margin = new Thickness(topLeft.X, topLeft.Y, 0, 0);
ovRect.Width = bottomRight.X - topLeft.X;
ovRect.Height = bottomRight.Y - topLeft.Y;
if (topLeft.X < 0 || topLeft.Y < 0)
{
ovRect.Visibility = Visibility.Collapsed;
}
else
{
ovRect.Visibility = Visibility.Visible;
}
}
else
{
ovRect.Visibility = Visibility.Collapsed;
}
lastMapViewBounds = viewBounds;
}
/// <summary>${ui_action_DrawRectangle_event_OnPointerMoved_D}</summary>
public override void OnPointerMoved(Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
{
if (isDrawing)
{
//Point oldPt = e.GetPosition(MapControl);
//Point newPt = oldPt;
//if (MapControl.Map.Angle != 0.0)
//{
// double radian = MapControl.Map.Angle / 180.0 * Math.PI;//变成弧度
// Point transOrigin = new Point(MapControl.ActualWidth / 2, MapControl.ActualHeight / 2);
// newPt = MathUtility.TransformPoint(oldPt, transOrigin, radian);
//}
Point2D item = Map.ScreenToMap(e.GetCurrentPoint(Map).Position);
double maxX = Math.Max(startPt.X , item.X);
double minX = Math.Min(startPt.X , item.X);
double maxY = Math.Max(startPt.Y , item.Y);
double minY = Math.Min(startPt.Y , item.Y);
Rectangle2D bounds = new Rectangle2D(minX , minY , maxX , maxY);
rectangle.SetValue(ElementsLayer.BBoxProperty , bounds);
}
base.OnPointerMoved(e);
}
private void Layers_LayersInitialized(object sender, EventArgs args)
{
if (this.panHelper != null)
{
hasChanged = true;
if (Point2D.IsNullOrEmpty(origin))
{
Rectangle2D bounds = this.Bounds;
if (Rectangle2D.IsNullOrEmpty(bounds))
{
return;//只有一个图层的时候，要求必需有bounds
}
if (!Rectangle2D.IsNullOrEmpty(ViewBounds))
{
bounds = ViewBounds;
}
cacheViewBounds = bounds;//赋给cacheVB
if ((currentSize.Width == 0.0) || (currentSize.Height == 0.0))
{
DispatchedHandler handler = new DispatchedHandler(delegate { this.Layers_LayersInitialized(sender, args); });
base.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, handler);
return;
}
}
//比如用TiledDynamicLayer 也没设置scalse，却只设置了MaxScale和MinScale,那么也设下最大最小吧
if (isMaxScaleSet && !isMinResolutionSet)
{
this.MinResolution = ScaleHelper.ScaleConversion(this.MaxScale, this.Dpi, this.CRS);
}
if (isMinScaleSet && !isMaxResolutionSet)
{
this.MaxResolution = ScaleHelper.ScaleConversion(this.MinScale, this.Dpi, this.CRS);
}
//放到scales的Set里? 在那里时，dpi基本为0，所以这里还得设置
if (this.Scales != null)//不是后设的时候,优先级高
{
fromLayers = false;//用了scales说明肯定不是从layer获取
if (this.Dpi != 0.0) //TieldWMS用SuperMap时无法知道dpi，所以即便设置了scales也没用
{
this.Resolutions = ScaleHelper.ConversionBetweenScalesAndResulotions(this.Scales, this.Dpi, this.CRS);
if (isMaxScaleSet)
{
this.MinResolution = ScaleHelper.ScaleConversion(this.MaxScale, this.Dpi, this.CRS); ;
}
if (isMinScaleSet)
{
this.MaxResolution = ScaleHelper.ScaleConversion(this.MinScale, this.Dpi, this.CRS); ;
}
}
}
if (this.Resolutions != null)
{
if (!this.isMinResolutionSet)
{
this.MinResolution = this.Resolutions[this.Resolutions.Length - 1];
}
if (!this.isMaxResolutionSet)
{
this.MaxResolution = this.Resolutions[0];
}
}
this.CalculateStartViewBounds(currentSize);
foreach (Layer layer in this.Layers)
{
this.AssignLayerContainer(layer);
}
if ((this.Resolutions != null) && (((this.Resolution < this.MinResolution) || (this.Resolution > this.MaxResolution))))
{
double res = MathUtil.GetNearest(this.mapResolution, this.Resolutions, MinResolution, MaxResolution);
if (res != this.mapResolution)
{
this.ZoomToResolution(res);
}
}
else
{
this.LoadLayersInView(false, this.GetFullViewBounds());
}
oldScales = this.Scales;
oldResolutions = this.Resolutions;
}
}
//由bounds获取tile的起始和结束行列号
//[startColumn,startRow,endColumn,endRow] //Returns [0,0,-1,-1] if fails
private int[] GetTileSpanWithin(Rectangle2D bounds, double resolution)
{
Rectangle2D temp = bounds.Intersect(this.Bounds);
if (!Rectangle2D.IsNullOrEmpty(temp))
{
double x = this.Origin.X;
double y = this.Origin.Y;
int startColumn = (int)Math.Floor((double)(((temp.Left - x) + (resolution * 0.5)) / (resolution * this.TileSize)));
int startRow = (int)Math.Floor((double)(((y - temp.Top) + (resolution * 0.5)) / (resolution * this.TileSize)));
int endColumn = (int)Math.Floor((double)(((temp.Right - x) - (resolution * 0.5)) / (resolution * this.TileSize)));
int endRow = (int)Math.Floor((double)(((y - temp.Bottom) - (resolution * 0.5)) / (resolution * this.TileSize)));
return new int[] { startColumn, startRow, endColumn, endRow };
}
return new int[4] { 0, 0, -1, -1 };
}
private void UpdateOvMap()
{
if (Map == null || ovMap == null || Rectangle2D.IsNullOrEmpty(Map.ViewBounds) || Rectangle2D.IsNullOrEmpty(ovMap.ViewBounds))
{
if (ovRect != null)
{
ovRect.Visibility = Visibility.Collapsed;
}
return;
}
double mapWidth = Map.ViewBounds.Width;
double mapHeight = Map.ViewBounds.Height;
double ovWidth = ovMap.ViewBounds.Width;
double ovHeight = ovMap.ViewBounds.Height;
double widthRatio = mapWidth / ovWidth;
double heightRatio = mapHeight / ovHeight;
double minRatio = 0.15;
double maxRatio = 0.8;
if (mapWidth >= Map.Bounds.Width)
{
ovMap.ZoomTo(Map.ViewBounds);
return;
}//主视图较小
bool pan = (Math.Abs(mapWidth - lastMapViewBounds.Width) < 1e-6 && Math.Abs(mapHeight - lastMapViewBounds.Height) < 1e-6);
if (pan)//只是平移
{
double halfWidth = ovWidth / 2;
double halfHeight = ovHeight / 2;
Point2D newCenter = Map.ViewBounds.Center;
ovMap.PanTo(newCenter);
}
else
{
if ((widthRatio <= minRatio || heightRatio <= minRatio || widthRatio >= maxRatio || heightRatio >= maxRatio) && DisableOverviewMapZoom)
{
if (ovRect != null)
{
ovRect.Visibility = Visibility.Collapsed;
}
if (Map.Bounds.Width > mapWidth * 3)
{
Rectangle2D viewBounds = new Rectangle2D(Map.ViewBounds.Left - mapWidth, Map.ViewBounds.Bottom - mapHeight, Map.ViewBounds.Right + mapWidth, Map.ViewBounds.Top + mapHeight);
ovMap.ZoomTo(viewBounds);
}
else
{
ovMap.ZoomTo(Map.ViewBounds);
}
}//根据主视图的大小，对鹰眼图进行一定的缩放
else
{
ovMap.PanTo(Map.ViewBounds.Center);
}//鹰眼图并不发生缩放
}//zoom
}