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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;
|
|
|
|
|
|
if (endPointForElement.X != endPointForLine.X || endPointForElement.Y != endPointForLine.Y)
|
|
|
|
|
|
{
|
|
|
|
|
|
IElement e = PointElements[pPointIndex];
|
|
|
|
|
|
ActiveView.GraphicsContainer.DeleteElement(e);
|
|
|
|
|
|
PointElements.Remove(e);
|
|
|
|
|
|
e = null;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else if (PointElements.Count < this.Line.PointCount)
|
|
|
|
|
|
{
|
|
|
|
|
|
IPoint endPointForLine = (this.Line as IPolyline).ToPoint;
|
|
|
|
|
|
IMarkerElement e = new MarkerElementClass();
|
|
|
|
|
|
// 获取IRGBColor接口
|
|
|
|
|
|
IRgbColor color = new RgbColor();
|
|
|
|
|
|
// 设置颜色属性
|
|
|
|
|
|
color.Red = 255;
|
|
|
|
|
|
color.Green = 255;
|
|
|
|
|
|
color.Blue = 0;
|
|
|
|
|
|
IMarkerSymbol symbol = new SimpleMarkerSymbolClass();
|
|
|
|
|
|
symbol.Color = color;
|
|
|
|
|
|
symbol.Size = 5;
|
|
|
|
|
|
e.Symbol = symbol;
|
|
|
|
|
|
(e as IElement).Geometry = endPointForLine;
|
|
|
|
|
|
ActiveView.GraphicsContainer.AddElement(e as IElement, 0);
|
|
|
|
|
|
PointElements.Insert(pPointIndex, e as IElement);
|
|
|
|
|
|
}
|
|
|
|
|
|
else if (pPointIndex > -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
IPoint endPointForLine = this.Line.get_Point(pPointIndex);
|
|
|
|
|
|
IElement e = PointElements[pPointIndex];
|
|
|
|
|
|
e.Geometry = endPointForLine;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
IPointCollection newGeo = new Polyline();
|
|
|
|
|
|
int i = pPointIndex - 1;
|
|
|
|
|
|
if (i >= 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
newGeo.AddPoint(this.Line.get_Point(i));
|
|
|
|
|
|
}
|
|
|
|
|
|
i = pPointIndex;
|
|
|
|
|
|
if (i >= 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
newGeo.AddPoint(this.Line.get_Point(i));
|
|
|
|
|
|
}
|
|
|
|
|
|
i = pPointIndex + 1;
|
|
|
|
|
|
if (i < this.Line.PointCount)
|
|
|
|
|
|
{
|
|
|
|
|
|
newGeo.AddPoint(this.Line.get_Point(i));
|
|
|
|
|
|
}
|
|
|
|
|
|
if (newGeo.PointCount > 1)
|
|
|
|
|
|
{
|
|
|
|
|
|
ITopologicalOperator topo = newGeo as ITopologicalOperator;
|
|
|
|
|
|
if (topo != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
IGeometry geo = topo.Buffer(10);
|
|
|
|
|
|
ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, geo.Envelope);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
public void Dissvoe()
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.Line != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
Marshal.FinalReleaseComObject(this.Line);
|
|
|
|
|
|
this.Line = null;
|
|
|
|
|
|
}
|
|
|
|
|
|
if (this.FollowLine != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
Marshal.FinalReleaseComObject(this.FollowLine);
|
|
|
|
|
|
this.FollowLine = null;
|
|
|
|
|
|
}
|
|
|
|
|
|
//this.Line = new Polyline();
|
|
|
|
|
|
//this.FollowLine = new Polyline();
|
|
|
|
|
|
this.DrawLine();
|
|
|
|
|
|
//if (LineElement != null)
|
|
|
|
|
|
//{
|
|
|
|
|
|
// ActiveView.GraphicsContainer.DeleteElement(this.LineElement);
|
|
|
|
|
|
// LineElement = null;
|
|
|
|
|
|
//}
|
|
|
|
|
|
//if (FollowLineElement != null)
|
|
|
|
|
|
//{
|
|
|
|
|
|
// ActiveView.GraphicsContainer.DeleteElement(this.FollowLineElement);
|
|
|
|
|
|
// FollowLineElement = null;
|
|
|
|
|
|
//}
|
|
|
|
|
|
ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, ActiveView.Extent);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
public void Reset()
|
|
|
|
|
|
{
|
|
|
|
|
|
this.Dissvoe();
|
|
|
|
|
|
this.Init();
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
}
|
