private void Activate(Point2D item)
{
if (Map == null || Map.Layers == null)
{
return;
}
DrawLayer = new ElementsLayer();
Map.Layers.Add(DrawLayer);
rectangle = new Rectangle();
rectangle.Stroke = this.Stroke;
rectangle.StrokeThickness = this.StrokeThickness;
rectangle.StrokeMiterLimit = this.StrokeMiterLimit;
rectangle.StrokeDashOffset = this.StrokeDashOffset;
rectangle.StrokeDashArray = this.StrokeDashArray;
rectangle.StrokeDashCap = this.StrokeDashCap;
rectangle.StrokeEndLineCap = this.StrokeEndLineCap;
rectangle.StrokeLineJoin = this.StrokeLineJoin;
rectangle.StrokeStartLineCap = this.StrokeStartLineCap;
rectangle.Opacity = this.Opacity;
rectangle.Fill = this.Fill;
rectangle.SetValue(ElementsLayer.BBoxProperty , new Rectangle2D(item , item));
DrawLayer.Children.Add(rectangle);
isActivated = true;
isDrawing = true;
}
private void Activate(Point2D firstPoint)
{
DrawLayer = new ElementsLayer();
if (Map.Layers == null)
{
return;
}
Map.Layers.Add(DrawLayer);
_polyline = new PolylineElement();
#region 所有风格的控制
_polyline.Stroke = Stroke;
_polyline.StrokeThickness = StrokeThickness;
_polyline.StrokeMiterLimit = StrokeMiterLimit;
_polyline.StrokeDashOffset = StrokeDashOffset;
_polyline.StrokeDashArray = StrokeDashArray;
_polyline.StrokeDashCap = StrokeDashCap;
_polyline.StrokeEndLineCap = StrokeEndLineCap;
_polyline.StrokeLineJoin = StrokeLineJoin;
_polyline.StrokeStartLineCap = StrokeStartLineCap;
_polyline.Opacity = Opacity;
_polyline.Fill = Fill;
_polyline.FillRule = FillRule;
#endregion
_points = new Point2DCollection();
_polyline.Point2Ds = _points;
_points.Add(firstPoint);
_pointsCount++;
DrawLayer.Children.Add(_polyline);
_isActivated = true;
}
/// <summary>${core_Rectangle2D_constructor_Point2D_Point2D_D}</summary>
/// <param name="point1">${core_Rectangle2D_constructor_Point2D_Point2D_param_bottomLeft}</param>
/// <param name="point2">${core_Rectangle2D_constructor_Point2D_Point2D_param_topRight}</param>
/// <example>
/// <code>
/// Rectangle2D rt=new Rectangle(new Point2D(10,20),new Point2D(58,69));
/// </code>
/// </example>
public Rectangle2D(Point2D point1, Point2D point2)
{
this._x = Math.Min(point1.X, point2.X);
this._y = Math.Min(point1.Y, point2.Y);
this._width = Math.Max((double)(Math.Max(point1.X, point2.X) - this._x), (double)0.0);
this._height = Math.Max((double)(Math.Max(point1.Y, point2.Y) - this._y), (double)0.0);
}
private void Activate(Point2D firstPoint)
{
if (Map == null || Map.Layers == null)
{
return;
}
polyline = new PolylineElement();
polyline.Stroke = Stroke;
polyline.StrokeThickness = StrokeThickness;
polyline.Opacity = Opacity;
polyline.StrokeMiterLimit = StrokeMiterLimit;
polyline.StrokeDashOffset = StrokeDashOffset;
polyline.StrokeDashArray = StrokeDashArray;
polyline.StrokeDashCap = StrokeDashCap;
polyline.StrokeEndLineCap = StrokeEndLineCap;
polyline.StrokeLineJoin = StrokeLineJoin;
polyline.StrokeStartLineCap = StrokeStartLineCap;
polyline.Fill = Fill;
polyline.FillRule = FillRule;
points = new Point2DCollection();
polyline.Point2Ds = points;
points.Add(firstPoint);
DrawLayer = new ElementsLayer();
Map.Layers.Add(DrawLayer);
DrawLayer.Children.Add(polyline);
isActivated = true;
isDrawing = true;
}
private void Activate(Point2D item)
{
if (Map == null || Map.Layers == null)
{
return;
}
ellipse = new Ellipse();
#region 所有风格的控制
ellipse.Stroke = Stroke;
ellipse.StrokeThickness = StrokeThickness;
ellipse.Fill = Fill;
ellipse.StrokeMiterLimit = StrokeMiterLimit;
ellipse.StrokeDashOffset = StrokeDashOffset;
ellipse.StrokeDashArray = StrokeDashArray;
ellipse.StrokeDashCap = StrokeDashCap;
ellipse.StrokeEndLineCap = StrokeEndLineCap;
ellipse.StrokeLineJoin = StrokeLineJoin;
ellipse.StrokeStartLineCap = StrokeStartLineCap;
ellipse.Opacity = Opacity;
#endregion
DrawLayer = new ElementsLayer();
Map.Layers.Add(DrawLayer);
ellipse.SetValue(ElementsLayer.BBoxProperty, new Rectangle2D(item, item));
DrawLayer.Children.Add(ellipse);
isActivated = true;
isDrawing = true;
}
public static Point MapToScreen(Point2D pt2D, Point2D origin, double resolution)
{
if ((!Point2D.IsNullOrEmpty(origin)) && !double.IsNaN(resolution))
{
return new Point((pt2D.X - origin.X) / resolution, (origin.Y - pt2D.Y) / resolution);
}
return new Point(double.NaN, double.NaN);
}
/// <summary>${utility_JsonHelper_method_FromPoint2D_D}</summary>
public static string FromPoint2D(Point2D point)
{
if (Point2D.IsNullOrEmpty(point))
{
return "{}"; //string.Empty? null?
}
return string.Format(CultureInfo.InvariantCulture, "{{\"x\":{0},\"y\":{1}}}", point.X, point.Y);
}
/// <summary>${core_GeoCircle_constructor_Point2D_double_D}</summary>
/// <param>${core_GeoCircle_constructor_Point2D_double_param__center}</param>
/// <param>${core_GeoCircle_constructor_Point2D_double_param__radius}</param>
/// <example>
/// <code>
/// Geometry geometry = new GeoCircle(new Point2D(35, 56), 23);
/// </code>
/// </example>
public GeoCircle(Point2D _center, double _radius)
{
this.Parts = new ObservableCollection<Point2DCollection>();
if (_center != null)
{
this.center = _center;
this.radius = _radius;
caculateParts();
}
}
internal string GetCoorStr(Point2D p1, Point2D p2)
{
string str = string.Empty;
if (!Point2D.IsNullOrEmpty(p1) && !Point2D.IsNullOrEmpty(p2))
{
str = p1.ToString(CultureInfo.InvariantCulture) + " " + p2.ToString(CultureInfo.InvariantCulture);
}
return str;
}
//计算parts
private void caculateParts()
{
double unitsAngle = 360 / 72;
double startAngle = 0;
double unitsPI = Math.PI / 180;
this.parts.Clear();
Point2DCollection item = new Point2DCollection();
for (int i = 0; i < 72; i++)
{
Point2D p = new Point2D(Math.Cos(startAngle * unitsPI) * this.radius + center.X, Math.Sin(startAngle * unitsPI) * this.radius + center.Y);
item.Add(p);
startAngle += unitsAngle;
}
this.parts.Add(item);
}
private void CreateRectangle(Point2D p1, Point2D p2)
{
double xmin = Math.Min(p1.X, p2.X);
double xmax = Math.Max(p1.X, p2.X);
double ymin = Math.Min(p1.Y, p2.Y);
double ymax = Math.Max(p1.Y, p2.Y);
Point2DCollection ps = new Point2DCollection();
ps.Add(new Point2D(xmin, ymin));
ps.Add(new Point2D(xmin, ymax));
ps.Add(new Point2D(xmax, ymax));
ps.Add(new Point2D(xmax, ymin));
ps.Add(new Point2D(xmin, ymin));
this.Parts.Add(ps);
}
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));
}
}
}
}
/// <summary>${ui_action_DrawRect_constructor_Map_D}</summary>
/// <example>
/// <code lang="CS">
/// DrawRectangle draw = new DrawRectangle(MyMap)
/// </code>
/// </example>
/// <param name="map">${ui_action_DrawRect_constructor_Map_param_map}</param>
/// <param name="cursor">${ui_action_MapAction_constructor_Map_param_cursor}</param>
public DrawRectangle(Map map)
: base(map , "DrawRectangle")
{
startPt = Point2D.Empty;
if (map.Theme == null)
{
Stroke = new SolidColorBrush(Colors.Green);
StrokeThickness = MagicNumber.ACTION_STYLE_DEFAULT_STROKETHICKNESS;
Fill = new SolidColorBrush(Colors.Black);
Opacity = MagicNumber.ACTION_STYLE_DEFAULT_OPACITY;
}
else
{
this.Stroke = map.Theme.Stroke;
this.StrokeThickness = map.Theme.StrokeThickness;
this.Fill = map.Theme.Fill;
this.Opacity = map.Theme.Opacity;
}
}
public void DeltaZoom(double targetResolution, Point2D targetCenter, TimeSpan zoomDuration)
{
_targetResolution = targetResolution;
_targetCenter = targetCenter;
_startTime = DateTime.Now;
_startCenter = _map.Center;
_startResolution = _map.Resolution;
if (Point2D.IsNullOrEmpty(_startCenter))
{
_zoomDuration = new TimeSpan(0);
}
else
{
_zoomDuration = zoomDuration;
}
if (!_isZooming)
{
_isZooming = true;
CompositionTarget.Rendering += CompositionTarget_Rendering;
OnZoomStarted();
}
}
private void Activate(Point2D firstPoint)
{
if (Map == null || Map.Layers == null)
{
return;
}
DrawLayer = new ElementsLayer();
Map.Layers.Add(DrawLayer);
_startPoint = firstPoint;
_polygon = new PolygonElement();
#region 所有风格的控制
_polygon.Stroke = this.Stroke;
_polygon.StrokeThickness = this.StrokeThickness;
_polygon.StrokeMiterLimit = this.StrokeMiterLimit;
_polygon.StrokeDashOffset = this.StrokeDashOffset;
_polygon.StrokeDashArray = this.StrokeDashArray;
_polygon.StrokeDashCap = this.StrokeDashCap;
_polygon.StrokeEndLineCap = this.StrokeEndLineCap;
_polygon.StrokeLineJoin = this.StrokeLineJoin;
_polygon.StrokeStartLineCap = this.StrokeStartLineCap;
_polygon.Opacity = this.Opacity;
_polygon.Fill = this.Fill;
_polygon.FillRule = this.FillRule;
#endregion
_points = new Point2DCollection();
_polygon.Point2Ds = _points;
_points.Add(firstPoint);
_pointsCount++;
_points.Add(firstPoint.Clone());
_pointsCount++;
DrawLayer.Children.Add(_polygon);
_isActivated = true;
}
private void Activate(Point2D firstPoint)
{
_polygon = new PolygonElement();
_textBlockContainer = new List<TextBlock>();
#region 所有风格的控制
_polygon.Stroke = Stroke;
_polygon.StrokeThickness = StrokeThickness;
_polygon.StrokeMiterLimit = StrokeMiterLimit;
_polygon.StrokeDashOffset = StrokeDashOffset;
_polygon.StrokeDashArray = StrokeDashArray;
_polygon.StrokeDashCap = StrokeDashCap;
_polygon.StrokeEndLineCap = StrokeEndLineCap;
_polygon.StrokeLineJoin = StrokeLineJoin;
_polygon.StrokeStartLineCap = StrokeStartLineCap;
_polygon.Opacity = Opacity;
_polygon.Fill = Fill;
_polygon.FillRule = FillRule;
#endregion
_points = new Point2DCollection();
_polygon.Point2Ds = _points;
_points.Add(firstPoint);
_pointsCount++;
_points.Add(firstPoint.Clone());
_pointsCount++;
DrawLayer.Children.Add(_polygon);
TextBlock textBlock = new TextBlock();
textBlock.FontWeight = FontWeights.ExtraBlack;
textBlock.Foreground = new SolidColorBrush(Colors.White);
textBlock.Text = "起点";
_textBlockContainer.Add(textBlock);
DrawLayer.AddChild(textBlock, firstPoint);
_isActivated = true;
}
private static Point2D StringToPoint2D(string value)
{
if (string.IsNullOrEmpty(value))
{
return Point2D.Empty;
}
string[] array = value.Split(new char[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (array.Length != 2)
{
return Point2D.Empty;
}
bool success = true;
double[] valuesArray = new double[2];
for (int i = 0; i < 2; i++)
{
double convertValue = 0;
if (!double.TryParse(array[i], out convertValue))
{
success = false;
break;
}
else
{
valuesArray[i] = convertValue;
}
}
if (success)
{
Point2D point = new Point2D(valuesArray[0], valuesArray[1]);
return point;
}
else
{
return Point2D.Empty;
}
}
/// <summary>${core_GeoPoint_constructor_Point2D_D}</summary>
/// <param name="location">${core_GeoPoint_constructor_Point2D_param_point}</param>
public GeoPoint(Point2D location)
: this(location.X, location.Y)
{
}
private void DrawPoint(Point2D point, bool isTemp)
{
bool needRemovePoints = _points.Count > _pointsCount;
while (_points.Count > _pointsCount)
{
_points.RemoveAt(_points.Count - 1);
}
_points.Add(point);
if (!isTemp)
{
_pointsCount++;
}
Point2D lastPoint = _points[_points.Count - 2];
double distance = Math.Sqrt(Math.Pow(point.X - lastPoint.X, 2) + Math.Pow(point.Y - lastPoint.Y, 2));
if (needRemovePoints)
{
_distances.Remove(_distances.Count - 1);
distance = _distances[_distances.Count - 1] + distance;
_distances.Add(distance);
_textBlockContainer[_textBlockContainer.Count - 1].Text = string.Format("{0:0.0000}千米", distance / 1000);
DrawLayer.Children.Remove(_textBlockContainer[_textBlockContainer.Count - 1]);
DrawLayer.AddChild(_textBlockContainer[_textBlockContainer.Count - 1], point);
}
else
{
distance = _distances[_distances.Count - 1] + distance;
_distances.Add(distance);
TextBlock textBlock = new TextBlock();
textBlock.FontWeight = FontWeights.ExtraBlack;
textBlock.Foreground = new SolidColorBrush(Colors.White);
textBlock.Text = string.Format("{0:0.0000}千米", distance / 1000);
_textBlockContainer.Add(textBlock);
DrawLayer.AddChild(textBlock, point);
}
}
private void DrawPoint(Point2D point, bool isTemp)
{
bool needRemovePoints = _points.Count > _pointsCount;
while (_points.Count > _pointsCount)
{
_points.RemoveAt(_points.Count - 2);
}
_points.Insert(_points.Count - 1, point);
if (!isTemp)
{
_pointsCount++;
}
string areaString = string.Format("{0:0.0000}平方千米", GetArea(_points));
if (needRemovePoints)
{
_textBlockContainer[_textBlockContainer.Count - 1].Text = areaString;
DrawLayer.Children.Remove(_textBlockContainer[_textBlockContainer.Count - 1]);
DrawLayer.AddChild(_textBlockContainer[_textBlockContainer.Count - 1], point);
}
else
{
TextBlock textBlock = new TextBlock();
textBlock.FontWeight = FontWeights.ExtraBlack;
textBlock.Foreground = new SolidColorBrush(Colors.White);
textBlock.Text = areaString;
_textBlockContainer.Add(textBlock);
DrawLayer.AddChild(textBlock, point);
}
}
/// <summary>${utility_Extensions_method_Contains_GeoRegion_Point2D_D}</summary>
/// <param name="region">${utility_Extensions_method_Contains_GeoRegion_Point2D_param_region}</param>
/// <param name="point">${utility_Extensions_method_Contains_GeoRegion_Point2D_param_point}</param>
/// <returns>${utility_Extensions_method_Contains_GeoRegion_Point2D_returns_D}</returns>
public static bool Contains(this GeoRegion region, Point2D point)
{
return CheckInRegion(region, point.X, point.Y);
}
/// <summary>${mapping_ArbitraryLayer_method_addChild_UIElement_Point2D_D}</summary>
/// <param name="element">${mapping_ArbitraryLayer_method_addChild_UIElement_pararm_element}</param>
/// <param name="location">${mapping_ArbitraryLayer_method_addChild_UIElement_Point2D_param_location}</param>
public void AddChild(UIElement element, Point2D location)
{
AddChild(element, new Rectangle2D(location, location));
}
private static Point2D FindPointOnLineClosestToPoint(Point2D p0 , Point2D p1 , Point2D p)
{
Point2D p0p = new Point2D(p.X - p0.X , p.Y - p0.Y);
Point2D p1p = new Point2D(p1.X - p0.X , p1.Y - p0.Y);
double p0p1sq = p1p.X * p1p.X + p1p.Y * p1p.Y;
double p0p_p0p1 = p0p.X * p1p.X + p0p.Y * p1p.Y;
double t = p0p_p0p1 / p0p1sq;
if (t < 0.0)
{
t = 0.0;
}
else if (t > 1.0)
{
t = 1.0;
}
return new Point2D(p0.X + p1p.X * t , p0.Y + p1p.Y * t);
}
/// <summary>${ui_action_DrawCircle_event_OnPointerPressed_D}</summary>
public override void OnPointerPressed(Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
{
PointerPoint pointer = e.GetCurrentPoint(Map);
Point2D item = Map.ScreenToMap(pointer.Position);
startPt = item;
if (!isActivated)
{
this.Activate(item);
}
e.Handled = true;
base.OnPointerPressed(e);
}
private bool IntersectLineSect(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4, out Point2D result)
{
result = Point2D.Empty;
bool flag = false;
double de = (y4 - y3) * (x2 - x1) - (x4 - x3) * (y2 - y1);
if (Math.Abs(de) > SMALL_VALUE)
{
double ub = ((x2 - x1) * (y1 - y3) - (y2 - y1) * (x1 - x3)) / de;
if ((ub > (-SMALL_VALUE)) && ub < (1 + SMALL_VALUE))
{
flag = true;
}
else
{
flag = false;
}
}
else
{
flag = false;
}
if (flag)
{
if (Math.Abs(x1 - x2) < SMALL_VALUE)
{
result.X = x1;
result.Y = ((y3 - y4) * x1 + x3 * y4 - x4 * y3) / (x3 - x4);
}
else if (Math.Abs(x3 - x4) < SMALL_VALUE)
{
result.X = x3;
result.Y = ((x1 - y2) * x3 + x1 * y2 - x2 * y1) / (x1 - x2);
}
else if (Math.Abs(y1 - y2) < SMALL_VALUE)
{
result.Y = y1;
result.X = ((x3 - x4) * y1 + y3 * x4 - y4 * x3) / (y3 - y4);
}
else if (Math.Abs(y3 - y4) < SMALL_VALUE)
{
result.Y = y3;
result.X = ((x1 - x2) * y3 + y1 * x2 - y2 * x1) / (y1 - y2);
}
else
{
double k1 = (y1 - y2) / (x1 - x2);
double k2 = (y3 - y4) / (x3 - x4);
double b1 = (x2 * y1 - y2 * x1) / (x2 - x1);
double b2 = (x4 * y3 - y4 * x3) / (x4 - x3);
result.X = (b2 - b1) / (k1 - k2);
result.Y = (b1 * k2 - b2 * k1) / (k2 - k1);
}
}
return flag;
}
/// <summary>
/// ${core_Point2D_method_IsNullOrEmpty_D}
/// </summary>
/// <param name="point">${core_Point2D_method_IsNullOrEmpty_param_point}</param>
/// <returns>${core_Point2D_method_IsNullOrEmpty_return}</returns>
public static bool IsNullOrEmpty(Point2D point)
{
if (point == null)
{
return true;
}
if (point.X == double.NegativeInfinity || point.Y == double.NegativeInfinity)
{
return true;
}
else
{
return false;
}
}
public GeoRectangle(Point2D point1, Point2D point2)
{
CreateRectangle(point1, point2);
}
/// <summary>${mapping_ArbitraryLayer_method_addChild_UIElement_Point2D_double_D}</summary>
/// <param name="element">${mapping_ArbitraryLayer_method_addChild_UIElement_pararm_element}</param>
/// <param name="location">${mapping_ArbitraryLayer_method_addChild_UIElement_Point2D_param_location}</param>
/// <param name="referenceLength">${mapping_ArbitraryLayer_method_addChild_UIElement_Point2D_double_param_referenceLength}</param>
public void AddChild(UIElement element, Point2D location, double referenceLength)
{
element.SetValue(ReferLengthProperty, referenceLength);
AddChild(element, new Rectangle2D(location, location));
}
/// <returns>${core_Point2D_method_equals_Point2D_return}</returns>
/// <summary>${core_Point2D_method_equals_Point2D_D}<br/></summary>
/// <overloads>${core_Point2D_method_equals_overloads}</overloads>
/// <param name="point">${core_Point2D_method_equals_Point2D_param_point}<br/></param>
public bool Equals(Point2D point)
{
return (this == point);
}
private void startEdit(Feature feature , bool suppressEvent , Point2D start)
{
if (activeFeature != feature)
{
StopEdit();
activeFeature = feature;
buildHoverLayer(activeFeature);
if (!suppressEvent)
{
OnGeometryEdit(activeFeature , GeometryEditAction.EditStarted);
}
}
else if (activeFeature.Geometry is GeoRegion && !start.IsEmpty)
{
prepareMoveLineOrRegionFeature(start);
}//表明移动整个要素
}
