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392 lines
15 KiB
392 lines
15 KiB
using ESRI.ArcGIS.Carto; |
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using ESRI.ArcGIS.Display; |
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using ESRI.ArcGIS.Geometry; |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Runtime.InteropServices; |
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using System.Text; |
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using System.Threading.Tasks; |
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namespace Kingo.Plugin.MapView.Model |
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{ |
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/// <summary> |
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/// 线模型 |
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/// </summary> |
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public class LineModel |
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{ |
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//ILineMovePointFeedback s = new LineMovePointFeedbackClass(); |
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//IMoveLineFeedback s1 = new MoveLineFeedbackClass(); |
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/// <summary> |
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/// 线对象 |
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/// </summary> |
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public IPointCollection Line { get; set; } |
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public List<IElement> PointElements = new List<IElement>(); |
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/// <summary> |
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/// 显示线元素 |
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/// </summary> |
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public IElement LineElement { get; set; } |
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/// <summary> |
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/// 跟随线对象 |
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/// </summary> |
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public ILineMovePointFeedback FollowLine { get; set; } |
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/// <summary> |
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/// 显示跟随线元素 |
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/// </summary> |
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public IElement FollowLineElement { get; set; } |
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/// <summary> |
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/// 计算线上点的坐标所用到的宽度比例 |
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/// </summary> |
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public double Scale { get; set; } |
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/// <summary> |
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/// 线样式 |
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/// </summary> |
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public ILineSymbol LineSymbol { get; private set; } |
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public bool IsAutoTrackPoint { get; set; } |
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/// <summary> |
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/// 跟随线样式 |
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/// </summary> |
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public ILineSymbol FollowLineSymbol { get; private set; } |
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private IActiveView ActiveView { get; set; } |
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public LineModel(IActiveView pActiveView, esriSimpleLineStyle pLineStyle, double pScale = 1) |
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{ |
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this.ActiveView = pActiveView; |
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//this.Line = new Polyline(); |
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//this.FollowLine = new Polyline(); |
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this.Scale = pScale; |
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// 获取IRGBColor接口 |
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IRgbColor color = new RgbColor(); |
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// 设置颜色属性 |
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color.Red = 0; |
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color.Green = 255; |
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color.Blue = 255; |
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// 获取ILine符号接口 |
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ILineSymbol outline = new SimpleLineSymbol(); |
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// 设置线符号属 |
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outline.Width = 1.5; |
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outline.Color = color; |
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(outline as SimpleLineSymbol).Style = pLineStyle; |
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this.LineSymbol = outline; |
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this.FollowLineSymbol = outline; |
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} |
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public LineModel(IActiveView pActiveView, esriSimpleLineStyle pLineStyle, esriSimpleLineStyle pFollowLineStyle, double pScale = 1) |
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{ |
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this.ActiveView = pActiveView; |
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//this.Line = new Polyline(); |
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//this.FollowLine = new Polyline(); |
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this.Scale = pScale; |
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// 获取IRGBColor接口 |
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IRgbColor color = new RgbColor(); |
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// 设置颜色属性 |
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color.Red = 0; |
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color.Green = 255; |
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color.Blue = 255; |
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// 获取ILine符号接口 |
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ILineSymbol outline = new SimpleLineSymbol(); |
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// 设置线符号属 |
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outline.Width = 1.5; |
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outline.Color = color; |
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(outline as SimpleLineSymbol).Style = pLineStyle; |
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this.LineSymbol = outline; |
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this.FollowLineSymbol = outline; |
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(this.FollowLineSymbol as SimpleLineSymbol).Style = pFollowLineStyle; |
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} |
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public void Init() |
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{ |
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this.Line = new Polyline(); |
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//this.FollowLine = new LineMovePointFeedbackClass(); |
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ActiveView.ScreenDisplay.SetSymbol(FollowLineSymbol as ISymbol); |
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this.FollowLine = new LineMovePointFeedbackClass() { Symbol = FollowLineSymbol as ESRI.ArcGIS.Display.ISymbol, Display = ActiveView.ScreenDisplay }; |
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this.FollowLine.Symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen; |
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} |
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/// <summary> |
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/// 设置线的样式 |
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/// </summary> |
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/// <param name="pSymbol"></param> |
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public void SetLineSymbol(ILineSymbol pSymbol) |
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{ |
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this.LineSymbol = pSymbol; |
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} |
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/// <summary> |
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/// 设置跟随线的样式 |
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/// </summary> |
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/// <param name="pSymbol"></param> |
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public void SetFollowLineSymbol(ILineSymbol pSymbol) |
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{ |
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this.FollowLineSymbol = pSymbol; |
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} |
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/// <summary> |
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/// 绘制线对象 |
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/// </summary> |
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public void DrawLine(int pIndex = -1) |
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{ |
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if (this.Line == null || this.Line.PointCount == 0) |
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{ |
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ActiveView.GraphicsContainer.DeleteAllElements(); |
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ActiveView.Refresh(); |
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this.PointElements.Clear(); |
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this.LineElement = null; |
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this.FollowLineElement = null; |
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} |
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else |
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{ |
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if (PointElements.Count > this.Line.PointCount) |
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{ |
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if (pIndex == -1) |
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{ |
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pIndex = PointElements.Count - 1; |
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} |
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IPoint endPointForElement = (IPoint)PointElements[pIndex].Geometry; |
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IPoint endPointForLine = (this.Line as IPolyline).ToPoint; |
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if (endPointForElement.X != endPointForLine.X || endPointForElement.Y != endPointForLine.Y) |
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{ |
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IElement e = PointElements[pIndex]; |
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ActiveView.GraphicsContainer.DeleteElement(e); |
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PointElements.Remove(e); |
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e = null; |
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} |
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} |
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else if (PointElements.Count < this.Line.PointCount) |
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{ |
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if (pIndex == -1) |
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{ |
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pIndex = PointElements.Count; |
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} |
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IPoint endPointForLine = (this.Line as IPolyline).ToPoint; |
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IMarkerElement e = new MarkerElementClass(); |
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// 获取IRGBColor接口 |
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IRgbColor color = new RgbColor(); |
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if (IsAutoTrackPoint) |
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{ |
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// 设置颜色属性 |
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color.Red = 100; |
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color.Green = 0; |
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color.Blue = 255; |
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} |
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else |
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{ |
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// 设置颜色属性 |
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color.Red = 255; |
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color.Green = 255; |
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color.Blue = 0; |
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} |
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IMarkerSymbol symbol = new SimpleMarkerSymbolClass(); |
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symbol.Color = color; |
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symbol.Size = 5; |
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e.Symbol = symbol; |
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(e as IElement).Geometry = endPointForLine; |
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ActiveView.GraphicsContainer.AddElement(e as IElement, 0); |
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PointElements.Insert(pIndex, e as IElement); |
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} |
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else |
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{ |
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if (pIndex == -1) |
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{ |
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pIndex = PointElements.Count - 1; |
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} |
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IPoint endPointForLine = (this.Line as IPolyline).ToPoint; |
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IElement e = PointElements[pIndex]; |
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e.Geometry = endPointForLine; |
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} |
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if (this.LineElement == null) |
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{ |
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if (this.Line.PointCount >= 2) |
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{ |
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#region 构造新的元素 |
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ILineElement pFillShapeElement = new LineElementClass(); |
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pFillShapeElement.Symbol = this.LineSymbol; |
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this.LineElement = pFillShapeElement as IElement; |
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this.LineElement.Geometry = this.Line as IGeometry; |
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ActiveView.GraphicsContainer.AddElement(this.LineElement, 0); |
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#endregion |
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} |
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} |
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else |
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{ |
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if (this.Line.PointCount < 2) |
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{ |
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#region 当点集合小于2的时候，删除对应的元素 |
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ActiveView.GraphicsContainer.DeleteElement(this.LineElement); |
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this.LineElement = null; |
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#endregion |
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} |
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else |
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{ |
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#region 更新现有元素 |
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this.LineElement.Geometry = this.Line as IGeometry; |
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#endregion |
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} |
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} |
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DrawFollowLine(); |
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IPointCollection newGeo = new Polyline(); |
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if (this.Line.PointCount > 1) |
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{ |
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newGeo.AddPoint(this.Line.get_Point(this.Line.PointCount - 2)); |
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} |
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newGeo.AddPoint(this.Line.get_Point(this.Line.PointCount - 1)); |
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//if (this.FollowLine != null && this.FollowLine.PointCount > 0) |
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//{ |
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// newGeo.AddPoint(this.FollowLine.get_Point(this.FollowLine.PointCount - 1)); |
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//} |
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if (newGeo.PointCount > 1) |
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{ |
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if ((newGeo as IGeometry).IsEmpty) |
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return; |
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ITopologicalOperator topo = newGeo as ITopologicalOperator; |
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if (topo != null) |
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{ |
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topo.Simplify(); |
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//注释注释缓冲代码，解决在GIS10.2环境中绘制线物面卡顿问题 |
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//IGeometry geo = topo.Buffer(10); |
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ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, (newGeo as IGeometry).Envelope); |
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} |
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} |
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} |
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} |
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/// <summary> |
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/// 绘制鼠标跟随线 |
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/// </summary> |
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public void DrawFollowLine() |
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{ |
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//if (this.FollowLine != null && this.FollowLine.PointCount != 0) |
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//{ |
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// if (this.FollowLineElement == null) |
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// { |
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// #region 构造新的元素 |
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// ILineElement pFillShapeElement = new LineElementClass(); |
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// pFillShapeElement.Symbol = this.FollowLineSymbol; |
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// this.FollowLineElement = pFillShapeElement as IElement; |
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// this.FollowLineElement.Geometry = this.FollowLine as IGeometry; |
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// ActiveView.GraphicsContainer.AddElement(this.FollowLineElement, 0); |
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// #endregion |
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// } |
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// else |
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// { |
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// #region 更新现有元素 |
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// this.FollowLineElement.Geometry = this.FollowLine as IGeometry; |
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// #endregion |
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// if (this.Line.PointCount == 0) |
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// { |
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// ActiveView.GraphicsContainer.DeleteElement(this.FollowLineElement); |
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// this.FollowLineElement = null; |
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// } |
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// } |
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//} |
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//else |
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//{ |
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//} |
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} |
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/// <summary> |
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/// 刷新线上的指定索引处的点 |
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/// </summary> |
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public void RefreshPoint(int pPointIndex) |
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{ |
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if (this.Line.PointCount > pPointIndex) |
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{ |
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this.DrawLine(pPointIndex); |
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if (PointElements.Count > this.Line.PointCount) |
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{ |
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IPoint endPointForElement = (IPoint)PointElements[PointElements.Count - 1].Geometry; |
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IPoint endPointForLine = (this.Line as IPolyline).ToPoint; |
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if (endPointForElement.X != endPointForLine.X || endPointForElement.Y != endPointForLine.Y) |
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{ |
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IElement e = PointElements[pPointIndex]; |
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ActiveView.GraphicsContainer.DeleteElement(e); |
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PointElements.Remove(e); |
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e = null; |
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} |
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} |
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else if (PointElements.Count < this.Line.PointCount) |
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{ |
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IPoint endPointForLine = (this.Line as IPolyline).ToPoint; |
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IMarkerElement e = new MarkerElementClass(); |
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// 获取IRGBColor接口 |
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IRgbColor color = new RgbColor(); |
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// 设置颜色属性 |
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color.Red = 255; |
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color.Green = 255; |
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color.Blue = 0; |
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IMarkerSymbol symbol = new SimpleMarkerSymbolClass(); |
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symbol.Color = color; |
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symbol.Size = 5; |
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e.Symbol = symbol; |
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(e as IElement).Geometry = endPointForLine; |
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ActiveView.GraphicsContainer.AddElement(e as IElement, 0); |
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PointElements.Insert(pPointIndex, e as IElement); |
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} |
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else if (pPointIndex > -1) |
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{ |
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IPoint endPointForLine = this.Line.get_Point(pPointIndex); |
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IElement e = PointElements[pPointIndex]; |
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e.Geometry = endPointForLine; |
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} |
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IPointCollection newGeo = new Polyline(); |
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int i = pPointIndex - 1; |
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if (i >= 0) |
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{ |
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newGeo.AddPoint(this.Line.get_Point(i)); |
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} |
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i = pPointIndex; |
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if (i >= 0) |
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{ |
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newGeo.AddPoint(this.Line.get_Point(i)); |
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} |
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i = pPointIndex + 1; |
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if (i < this.Line.PointCount) |
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{ |
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newGeo.AddPoint(this.Line.get_Point(i)); |
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} |
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if (newGeo.PointCount > 1) |
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{ |
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ITopologicalOperator topo = newGeo as ITopologicalOperator; |
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if (topo != null) |
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{ |
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IGeometry geo = topo.Buffer(10); |
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ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, geo.Envelope); |
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} |
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} |
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} |
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} |
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public void Dissvoe() |
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{ |
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if (this.Line != null) |
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{ |
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Marshal.FinalReleaseComObject(this.Line); |
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this.Line = null; |
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} |
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if (this.FollowLine != null) |
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{ |
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Marshal.FinalReleaseComObject(this.FollowLine); |
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this.FollowLine = null; |
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} |
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//this.Line = new Polyline(); |
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//this.FollowLine = new Polyline(); |
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this.DrawLine(); |
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//if (LineElement != null) |
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//{ |
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// ActiveView.GraphicsContainer.DeleteElement(this.LineElement); |
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// LineElement = null; |
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//} |
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//if (FollowLineElement != null) |
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//{ |
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// ActiveView.GraphicsContainer.DeleteElement(this.FollowLineElement); |
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// FollowLineElement = null; |
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//} |
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ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, ActiveView.Extent); |
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} |
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public void Reset() |
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{ |
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this.Dissvoe(); |
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this.Init(); |
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} |
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} |
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}
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