esriControlsMousePointer

本文介绍了esriControlsMousePointer常量中定义的各种鼠标指针样式及其用途,这些样式包括标准箭头、十字线、放大镜等,适用于ESRI ArcGIS Controls的应用开发。

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esriControlsMousePointer常量
控制鼠标指针选项。
esriControlsMousePointer需要添加ESRI.ArcGIS.Controls的引用

属性介绍

esriPointerParentWindow -1  指针指定的父窗口或窗体。
esriPointerDefault  0   默认指针,箭头一样。
esriPointerArrow    1   标准的箭头。
esriPointerCrosshair    2   十字线。
esriPointerIBeam    3   我束。
esriPointerIcon 4   图标。
esriPointerSize 5   大小,四向箭头指向北,南,东部和西部。
esriPointerSizeNESW 6   尺寸NE-SW,双箭头指向东北和西南。
esriPointerSizeNS   7   尺寸NS,双箭头指向北方和南方。
esriPointerSizeNWSE 8   尺寸NW-SE,双箭头指向西北和东南。
esriPointerSizeWE   9   大小,我们的双箭头指向东和西。
esriPointerUpArrow  10  垂直向上的箭头。
esriPointerHourglass    11  沙漏,等待光标。
esriPointerNoDrop   12  通过它与斜线的圆或没有进入标志。
esriPointerArrowHourglass   13  标准箭头和小沙漏。
esriPointerArrowQuestion    14  箭头和问号。
esriPointerSizeAll  15  所有尺寸,箭头指向北,南,东,西四。
esriPointerZoom 50  放大,放大镜。
esriPointerZoomIn   51  放大,有一个加号的放大镜。
esriPointerZoomOut  52  缩小,减号的放大镜。
esriPointerPan  53  潘,一只手。
esriPointerPanning  54  摇摄,一个紧握的手。
esriPointerIdentify 55  识别,信息符号的箭头。
esriPointerLabel    56  标签,箭头与字母A。
esriPointerHotLink  57  热链接,雷击。
esriPointerPencil   58  铅笔。
esriPointerHand 59  手,收手用食指指着垂直。
esriPointerPageZoomIn   60  页面缩放,放大镜,加号和一个小页面。
esriPointerPageZoomOut  61  页面缩小,有减号的放大镜和一个小页面。
esriPointerPagePan  62  页锅,张开手页符号。
esriPointerPagePanning  63  页锅,收手与页面象征。
esriPointerCustom   99  MouseIcon属性所指定的自定义图标
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.esriSystem; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Geodatabase; using ESRI.ArcGIS.Display; namespace WaterPipelineGIS2 { public partial class Form1 : Form { private IFeatureLayer _selectedFeatureLayer; private System.Drawing.Point _lastRightClickPosition; private enum SelectionMode { None, Rectangle, Circle, Polygon, Polyline } private SelectionMode currentMode = SelectionMode.None; private enum MeasureMode { None, Area, Length, Point } private MeasureMode currentMeasureMode = MeasureMode.None; private IGeometry tempGeometry; private IPointCollection pointCollection; private ToolStripStatusLabel lblMeasureResult; // 修改为ToolStripStatusLabel private IGraphicsContainer _spatialSelectionGraphics; private IGraphicsContainer _attributeHighlightGraphics; private void InitializeGraphicsContainers() { try { if (axMapControl1.ActiveView != null) { _spatialSelectionGraphics = axMapControl1.ActiveView.GraphicsContainer; _attributeHighlightGraphics = axMapControl1.ActiveView.GraphicsContainer; } } catch (Exception ex) { MessageBox.Show("初始化图形容器失败: " + ex.Message); } } private void Form1_Load(object sender, EventArgs e) { InitializeGraphicsContainers(); // 初始化量测结果标签 lblMeasureResult = new ToolStripStatusLabel(); statusStrip1.Items.Add(lblMeasureResult); } public Form1() { InitializeComponent(); // 确保设计器初始化完成 if (statusStrip1 != null) { lblMeasureResult = new ToolStripStatusLabel(); statusStrip1.Items.Add(lblMeasureResult); } InitializeGraphicsContainers(); axMapControl1.OnMouseMove += new IMapControlEvents2_Ax_OnMouseMoveEventHandler(axMapControl1_OnMouseMove); axMapControl1.OnMouseDown += new IMapControlEvents2_Ax_OnMouseDownEventHandler(axMapControl1_OnMouseDown); axMapControl1.OnDoubleClick += new IMapControlEvents2_Ax_OnDoubleClickEventHandler(axMapControl1_OnDoubleClick); } private void axMapControl1_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e) { double mapX = e.mapX; double mapY = e.mapY; lblCoordinate.Text = "X: " + mapX.ToString("F3") + " Y: " + mapY.ToString("F3"); statusStrip1.Refresh(); } private void toolStripMenuItem2_Click(object sender, EventArgs e) { using (var rotateForm = new RotateForm()) { if (rotateForm.ShowDialog() == DialogResult.OK) { try { axMapControl1.Rotation = rotateForm.RotationAngle; axMapControl1.ActiveView.Refresh(); lblCoordinate.Text += " 旋转角度:" + rotateForm.RotationAngle + "°"; } catch (Exception ex) { MessageBox.Show("旋转失败:" + ex.Message); } } } } private void axTOCControl1_OnMouseDown(object sender, ITOCControlEvents_OnMouseDownEvent e) { if (e.button == 2) // 右键 { _lastRightClickPosition = new System.Drawing.Point(e.x, e.y); ITOCControl2 tocControl = (ITOCControl2)axTOCControl1.Object; IBasicMap basicMap = null; ILayer layer = null; object other = Type.Missing; object index = Type.Missing; esriTOCControlItem itemType = esriTOCControlItem.esriTOCControlItemNone; tocControl.HitTest(e.x, e.y, ref itemType, ref basicMap, ref layer, ref other, ref index); if (itemType == esriTOCControlItem.esriTOCControlItemLayer && layer != null) { contextMenuStripTOC.Show(axTOCControl1, e.x, e.y); } } } private void openAttributeTableToolStripMenuItem_Click(object sender, EventArgs e) { ITOCControl2 tocControl = (ITOCControl2)axTOCControl1.Object; IBasicMap basicMap = null; ILayer layer = null; object other = Type.Missing; object index = Type.Missing; esriTOCControlItem itemType = esriTOCControlItem.esriTOCControlItemNone; System.Drawing.Point screenPos = contextMenuStripTOC.PointToClient(Control.MousePosition); System.Drawing.Point controlPos = axTOCControl1.PointToClient(Control.MousePosition); tocControl.HitTest( controlPos.X, controlPos.Y, ref itemType, ref basicMap, ref layer, ref other, ref index ); IFeatureLayer featureLayer = layer as IFeatureLayer; if (featureLayer != null) { _selectedFeatureLayer = featureLayer; AttributeTableForm attrForm = new AttributeTableForm( _selectedFeatureLayer, this ); attrForm.Show(); } } private void SetSelectionSymbol() { ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Color = GetRgbColor(255, 0, 0); fillSymbol.Style = esriSimpleFillStyle.esriSFSSolid; ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(255, 255, 0); lineSymbol.Width = 2; fillSymbol.Outline = lineSymbol; if (_selectedFeatureLayer != null) { IGeoFeatureLayer geoLayer = (IGeoFeatureLayer)_selectedFeatureLayer; ISimpleRenderer renderer = new SimpleRendererClass(); renderer.Symbol = (ISymbol)fillSymbol; geoLayer.Renderer = (IFeatureRenderer)renderer; axMapControl1.ActiveView.Refresh(); } } private IRgbColor GetRgbColor(int r, int g, int b) { IRgbColor color = new RgbColorClass(); color.Red = r; color.Green = g; color.Blue = b; return color; } private IRgbColor GetRgbColor(int r, int g, int b, int alpha) { IRgbColor color = new RgbColorClass(); color.Red = r; color.Green = g; color.Blue = b; color.Transparency = (byte)(255 - alpha); return color; } public void ActivateFeatureLayer(IFeatureLayer featureLayer) { if (featureLayer == null) return; _selectedFeatureLayer = featureLayer; axMapControl1.ActiveView.Refresh(); axTOCControl1.Update(); } public void HighlightAndZoomToFeature(IFeatureLayer featureLayer, int oid) { try { if (featureLayer == null || featureLayer.FeatureClass == null) { MessageBox.Show("图层或要素类无效!"); return; } IFeature feature = featureLayer.FeatureClass.GetFeature(oid); if (feature == null || feature.Shape == null) { MessageBox.Show("要素 OID " + oid + " 不存在或无几何!"); return; } IGeometry geometry = feature.Shape; IEnvelope envelope = geometry.Envelope; if (envelope.IsEmpty || envelope.Width == 0 || envelope.Height == 0) { envelope.Expand(10, 10, true); } else { envelope.Expand(1.5, 1.5, true); } axMapControl1.Extent = envelope; axMapControl1.ActiveView.ScreenDisplay.UpdateWindow(); HighlightGeometry(geometry); } catch (Exception ex) { MessageBox.Show("高亮要素失败: " + ex.Message); } } private void btnRectSelect_Click(object sender, EventArgs e) { currentMode = SelectionMode.Rectangle; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; } private void btnCircleSelect_Click(object sender, EventArgs e) { currentMode = SelectionMode.Circle; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; } private void btnPolygonSelect_Click(object sender, EventArgs e) { currentMode = SelectionMode.Polygon; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; } private void btnLineSelect_Click(object sender, EventArgs e) { currentMode = SelectionMode.Polyline; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; } private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e) { try { if (currentMode != SelectionMode.None) { HandleSpatialSelection(e); return; } if (currentMeasureMode != MeasureMode.None) { HandleMeasurement(e); } } catch (Exception ex) { MessageBox.Show("操作错误:" + ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } private void PerformSpatialSelection(IGeometry geometry) { try { IMap map = axMapControl1.Map; if (map == null) return; map.ClearSelection(); for (int i = 0; i < map.LayerCount; i++) { IFeatureLayer featureLayer = map.get_Layer(i) as IFeatureLayer; if (featureLayer == null || !featureLayer.Valid || featureLayer.FeatureClass == null) continue; ISpatialFilter filter = new SpatialFilterClass(); filter.Geometry = geometry; filter.GeometryField = featureLayer.FeatureClass.ShapeFieldName; filter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; IFeatureSelection selection = (IFeatureSelection)featureLayer; selection.SelectFeatures(filter, esriSelectionResultEnum.esriSelectionResultNew, false); } axMapControl1.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null); axMapControl1.ActiveView.Refresh(); } catch (Exception ex) { MessageBox.Show("空间查询失败: " + ex.Message); } } private void HighlightGeometry(IGeometry geometry) { try { if (_spatialSelectionGraphics != null) { _spatialSelectionGraphics.DeleteAllElements(); } IElement element = null; switch (geometry.GeometryType) { case esriGeometryType.esriGeometryPolygon: { ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Color = GetRgbColor(255, 0, 0, 80); ISimpleLineSymbol outline = new SimpleLineSymbolClass(); outline.Color = GetRgbColor(255, 0, 0); outline.Width = 2; fillSymbol.Outline = outline; element = new PolygonElementClass(); element.Geometry = geometry; ((IFillShapeElement)element).Symbol = fillSymbol; } break; case esriGeometryType.esriGeometryPolyline: { ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(255, 0, 0); lineSymbol.Width = 3; element = new LineElementClass(); element.Geometry = geometry; ((ILineElement)element).Symbol = lineSymbol; } break; case esriGeometryType.esriGeometryPoint: { ISimpleMarkerSymbol markerSymbol = new SimpleMarkerSymbolClass(); markerSymbol.Color = GetRgbColor(255, 0, 0); markerSymbol.Size = 12; element = new MarkerElementClass(); element.Geometry = geometry; ((IMarkerElement)element).Symbol = markerSymbol; } break; } if (element != null && _spatialSelectionGraphics != null) { _spatialSelectionGraphics.AddElement(element, 0); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } catch (Exception ex) { MessageBox.Show("高亮显示失败: " + ex.Message); } } private void btnClearSelection_Click(object sender, EventArgs e) { try { if (axMapControl1.Map != null) { axMapControl1.Map.ClearSelection(); } if (_spatialSelectionGraphics != null) { _spatialSelectionGraphics.DeleteAllElements(); } ClearTempGraphics(); axMapControl1.ActiveView.PartialRefresh( esriViewDrawPhase.esriViewGeoSelection | esriViewDrawPhase.esriViewGraphics, null, null ); axMapControl1.ActiveView.Refresh(); currentMode = SelectionMode.None; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault; currentMeasureMode = MeasureMode.None; } catch (Exception ex) { MessageBox.Show("清除选择失败: " + ex.Message); } } private void axMapControl1_OnDoubleClick(object sender, IMapControlEvents2_OnDoubleClickEvent e) { if (currentMode != SelectionMode.None) { currentMode = SelectionMode.None; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault; } if (currentMeasureMode == MeasureMode.Area || currentMeasureMode == MeasureMode.Length) { if (pointCollection != null && pointCollection.PointCount > 1) { ShowMeasureResult(); pointCollection = null; currentMeasureMode = MeasureMode.None; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault; } } } private void btnMeasureArea_Click(object sender, EventArgs e) { ResetMeasureMode(MeasureMode.Area); if (lblMeasureResult != null) lblMeasureResult.Text = "状态:绘制多边形(双击结束)"; } private void btnMeasureLength_Click(object sender, EventArgs e) { ResetMeasureMode(MeasureMode.Length); if (lblMeasureResult != null) lblMeasureResult.Text = "状态:绘制折线(双击结束)"; } private void btnMeasurePoint_Click(object sender, EventArgs e) { ResetMeasureMode(MeasureMode.Point); if (lblMeasureResult != null) lblMeasureResult.Text = "状态:移动鼠标查看坐标"; } private void ResetMeasureMode(MeasureMode mode) { currentMeasureMode = mode; ClearTempGraphics(); axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; } private void ClearTempGraphics() { try { if (_spatialSelectionGraphics != null) { _spatialSelectionGraphics.DeleteAllElements(); axMapControl1.ActiveView.PartialRefresh( esriViewDrawPhase.esriViewGraphics, null, null ); } pointCollection = null; } catch (Exception ex) { MessageBox.Show("清除临时图形失败: " + ex.Message); } } private void HandleSpatialSelection(IMapControlEvents2_OnMouseDownEvent e) { IGeometry geometry = null; switch (currentMode) { case SelectionMode.Rectangle: IEnvelope rectEnv = axMapControl1.TrackRectangle(); if (rectEnv != null) { IPolygon polygon = new PolygonClass(); polygon.SpatialReference = axMapControl1.SpatialReference; ISegmentCollection segColl = (ISegmentCollection)polygon; segColl.SetRectangle(rectEnv); geometry = (IGeometry)polygon; } break; case SelectionMode.Circle: IEnvelope envelope = axMapControl1.TrackRectangle(); if (envelope.Width <= 0 || envelope.Height <= 0) { MessageBox.Show("请拖拽有效的矩形范围以创建圆形!"); return; } IPoint center = new PointClass(); center.PutCoords( (envelope.XMin + envelope.XMax) / 2, (envelope.YMin + envelope.YMax) / 2 ); double radius = Math.Max(envelope.Width, envelope.Height) / 2; ICircularArc circularArc = new CircularArcClass(); IConstructCircularArc constructArc = (IConstructCircularArc)circularArc; constructArc.ConstructCircle(center, radius, true); ISegmentCollection circleSegColl = new PolygonClass(); circleSegColl.AddSegment((ISegment)circularArc); geometry = (IGeometry)circleSegColl; geometry.SpatialReference = axMapControl1.SpatialReference; break; case SelectionMode.Polygon: geometry = axMapControl1.TrackPolygon(); break; case SelectionMode.Polyline: geometry = axMapControl1.TrackLine(); break; } if (geometry != null) { PerformSpatialSelection(geometry); HighlightGeometry(geometry); } } private void HandleMeasurement(IMapControlEvents2_OnMouseDownEvent e) { if (currentMeasureMode == MeasureMode.None) return; IPoint currentPoint = axMapControl1.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(e.x, e.y); switch (currentMeasureMode) { case MeasureMode.Area: case MeasureMode.Length: if (pointCollection == null) { pointCollection = currentMeasureMode == MeasureMode.Area ? (IPointCollection)new PolygonClass() : (IPointCollection)new PolylineClass(); pointCollection.AddPoint(currentPoint); } pointCollection.AddPoint(currentPoint); DrawTempGeometry(); break; } } private void DrawTempGeometry() { if (pointCollection == null) return; ClearTempGraphics(); IElement element = null; if (pointCollection is IPolygon) { ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Color = GetRgbColor(0, 255, 0, 50); ISimpleLineSymbol outline = new SimpleLineSymbolClass(); outline.Color = GetRgbColor(0, 255, 0); outline.Width = 2; fillSymbol.Outline = outline; element = new PolygonElementClass(); element.Geometry = (IGeometry)pointCollection; ((IFillShapeElement)element).Symbol = fillSymbol; } else if (pointCollection is IPolyline) { ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(0, 255, 0); lineSymbol.Width = 2; element = new LineElementClass(); element.Geometry = (IGeometry)pointCollection; ((ILineElement)element).Symbol = lineSymbol; } if (element != null && _spatialSelectionGraphics != null) { _spatialSelectionGraphics.AddElement(element, 0); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } private void ShowMeasureResult() { try { if (pointCollection == null) return; double result = 0; string unit = ""; ISpatialReference spatialRef = axMapControl1.SpatialReference; if (pointCollection is IPolygon) { IPolygon polygon = pointCollection as IPolygon; ITopologicalOperator topoOp = polygon as ITopologicalOperator; topoOp.Simplify(); IArea area = polygon as IArea; result = area.Area; unit = "平方米"; } else if (pointCollection is IPolyline) { IPolyline polyline = pointCollection as IPolyline; ICurve curve = polyline as ICurve; result = curve.Length; unit = "米"; } else { return; } if (lblMeasureResult != null) lblMeasureResult.Text = "测量结果: " + result.ToString("F2") + " " + unit; } catch (Exception ex) { MessageBox.Show("计算量测结果失败: " + ex.Message); } } } }点击空间量测后怎么进行量测,我怎么右击mapcontrol控件(axMapControl1)不进行绘制量测呢,给出修改后的完整代码,不要省略任何部分,注意vs版本为2010
07-13
namespace WaterPipelineGIS2 { partial class main { /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// 清理所有正在使用的资源。 /// </summary> /// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows 窗体设计器生成的代码 /// <summary> /// 设计器支持所需的方法 - 不要 /// 使用代码编辑器修改此方法的内容。 /// </summary> private void InitializeComponent() { this.components = new System.ComponentModel.Container(); System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(main)); this.menuStrip1 = new System.Windows.Forms.MenuStrip(); this.toolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem2 = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem3 = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem4 = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem5 = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem6 = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem7 = new System.Windows.Forms.ToolStripMenuItem(); this.清除选择ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.空间量测ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.面积量测ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.周长量测ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.点坐标量测ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.清除已绘制图形ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.panel1 = new System.Windows.Forms.Panel(); this.splitContainer1 = new System.Windows.Forms.SplitContainer(); this.groupBoxEagleEye = new System.Windows.Forms.GroupBox(); this.statusStrip1 = new System.Windows.Forms.StatusStrip(); this.lblCoordinate = new System.Windows.Forms.ToolStripStatusLabel(); this.lblResult = new System.Windows.Forms.ToolStripStatusLabel(); this.axLicenseControl1 = new ESRI.ArcGIS.Controls.AxLicenseControl(); this.txtRotateAngle = new System.Windows.Forms.ToolStripTextBox(); this.contextMenuStripTOC = new System.Windows.Forms.ContextMenuStrip(this.components); this.openAttributeTableToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.axMapControl2 = new ESRI.ArcGIS.Controls.AxMapControl(); this.axTOCControl1 = new ESRI.ArcGIS.Controls.AxTOCControl(); this.axMapControl1 = new ESRI.ArcGIS.Controls.AxMapControl(); this.axToolbarControl1 = new ESRI.ArcGIS.Controls.AxToolbarControl(); this.折线周长量测ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripStatusLabel1 = new System.Windows.Forms.ToolStripStatusLabel(); this.menuStrip1.SuspendLayout(); this.panel1.SuspendLayout(); ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit(); this.splitContainer1.Panel1.SuspendLayout(); this.splitContainer1.Panel2.SuspendLayout(); this.splitContainer1.SuspendLayout(); this.groupBoxEagleEye.SuspendLayout(); this.statusStrip1.SuspendLayout(); ((System.ComponentModel.ISupportInitialize)(this.axLicenseControl1)).BeginInit(); this.contextMenuStripTOC.SuspendLayout(); ((System.ComponentModel.ISupportInitialize)(this.axMapControl2)).BeginInit(); ((System.ComponentModel.ISupportInitialize)(this.axTOCControl1)).BeginInit(); ((System.ComponentModel.ISupportInitialize)(this.axMapControl1)).BeginInit(); ((System.ComponentModel.ISupportInitialize)(this.axToolbarControl1)).BeginInit(); this.SuspendLayout(); // // menuStrip1 // this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.toolStripMenuItem1}); this.menuStrip1.Location = new System.Drawing.Point(0, 0); this.menuStrip1.Name = "menuStrip1"; this.menuStrip1.Size = new System.Drawing.Size(1042, 32); this.menuStrip1.TabIndex = 0; this.menuStrip1.Text = "menuStrip1"; // // toolStripMenuItem1 // this.toolStripMenuItem1.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.toolStripMenuItem2, this.toolStripMenuItem3, this.空间量测ToolStripMenuItem}); this.toolStripMenuItem1.Name = "toolStripMenuItem1"; this.toolStripMenuItem1.Size = new System.Drawing.Size(58, 28); this.toolStripMenuItem1.Text = "功能"; // // toolStripMenuItem2 // this.toolStripMenuItem2.Name = "toolStripMenuItem2"; this.toolStripMenuItem2.Size = new System.Drawing.Size(152, 28); this.toolStripMenuItem2.Text = "地图旋转"; this.toolStripMenuItem2.Click += new System.EventHandler(this.toolStripMenuItem2_Click); // // toolStripMenuItem3 // this.toolStripMenuItem3.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.toolStripMenuItem4, this.toolStripMenuItem5, this.toolStripMenuItem6, this.toolStripMenuItem7, this.清除选择ToolStripMenuItem}); this.toolStripMenuItem3.Name = "toolStripMenuItem3"; this.toolStripMenuItem3.Size = new System.Drawing.Size(152, 28); this.toolStripMenuItem3.Text = "空间选择"; // // toolStripMenuItem4 // this.toolStripMenuItem4.Name = "toolStripMenuItem4"; this.toolStripMenuItem4.Size = new System.Drawing.Size(206, 28); this.toolStripMenuItem4.Text = "绘制矩形选择"; this.toolStripMenuItem4.Click += new System.EventHandler(this.btnRectSelect_Click); // // toolStripMenuItem5 // this.toolStripMenuItem5.Name = "toolStripMenuItem5"; this.toolStripMenuItem5.Size = new System.Drawing.Size(206, 28); this.toolStripMenuItem5.Text = "绘制圆形选择"; this.toolStripMenuItem5.Click += new System.EventHandler(this.btnCircleSelect_Click); // // toolStripMenuItem6 // this.toolStripMenuItem6.Name = "toolStripMenuItem6"; this.toolStripMenuItem6.Size = new System.Drawing.Size(206, 28); this.toolStripMenuItem6.Text = "绘制多边形选择"; this.toolStripMenuItem6.Click += new System.EventHandler(this.btnPolygonSelect_Click); // // toolStripMenuItem7 // this.toolStripMenuItem7.Name = "toolStripMenuItem7"; this.toolStripMenuItem7.Size = new System.Drawing.Size(206, 28); this.toolStripMenuItem7.Text = "绘制折线选择"; this.toolStripMenuItem7.Click += new System.EventHandler(this.btnLineSelect_Click); // // 清除选择ToolStripMenuItem // this.清除选择ToolStripMenuItem.Name = "清除选择ToolStripMenuItem"; this.清除选择ToolStripMenuItem.Size = new System.Drawing.Size(206, 28); this.清除选择ToolStripMenuItem.Text = "清除选择"; this.清除选择ToolStripMenuItem.Click += new System.EventHandler(this.btnClearSelection_Click); // // 空间量测ToolStripMenuItem // this.空间量测ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.面积量测ToolStripMenuItem, this.周长量测ToolStripMenuItem, this.折线周长量测ToolStripMenuItem, this.点坐标量测ToolStripMenuItem, this.清除已绘制图形ToolStripMenuItem}); this.空间量测ToolStripMenuItem.Name = "空间量测ToolStripMenuItem"; this.空间量测ToolStripMenuItem.Size = new System.Drawing.Size(152, 28); this.空间量测ToolStripMenuItem.Text = "空间量测"; // // 面积量测ToolStripMenuItem // this.面积量测ToolStripMenuItem.Name = "面积量测ToolStripMenuItem"; this.面积量测ToolStripMenuItem.Size = new System.Drawing.Size(206, 28); this.面积量测ToolStripMenuItem.Text = "面积量测"; this.面积量测ToolStripMenuItem.Click += new System.EventHandler(this.面积量测ToolStripMenuItem_Click); // // 周长量测ToolStripMenuItem // this.周长量测ToolStripMenuItem.Name = "周长量测ToolStripMenuItem"; this.周长量测ToolStripMenuItem.Size = new System.Drawing.Size(206, 28); this.周长量测ToolStripMenuItem.Text = "周长量测"; this.周长量测ToolStripMenuItem.Click += new System.EventHandler(this.周长量测ToolStripMenuItem_Click); // // 点坐标量测ToolStripMenuItem // this.点坐标量测ToolStripMenuItem.Name = "点坐标量测ToolStripMenuItem"; this.点坐标量测ToolStripMenuItem.Size = new System.Drawing.Size(206, 28); this.点坐标量测ToolStripMenuItem.Text = "点坐标量测"; this.点坐标量测ToolStripMenuItem.Click += new System.EventHandler(this.点坐标量测ToolStripMenuItem_Click); // // 清除已绘制图形ToolStripMenuItem // this.清除已绘制图形ToolStripMenuItem.Name = "清除已绘制图形ToolStripMenuItem"; this.清除已绘制图形ToolStripMenuItem.Size = new System.Drawing.Size(206, 28); this.清除已绘制图形ToolStripMenuItem.Text = "清除已绘制图形"; this.清除已绘制图形ToolStripMenuItem.Click += new System.EventHandler(this.清除已绘制图形ToolStripMenuItem_Click); // // panel1 // this.panel1.Controls.Add(this.splitContainer1); this.panel1.Dock = System.Windows.Forms.DockStyle.Fill; this.panel1.Location = new System.Drawing.Point(0, 60); this.panel1.Name = "panel1"; this.panel1.Size = new System.Drawing.Size(1042, 585); this.panel1.TabIndex = 2; // // splitContainer1 // this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill; this.splitContainer1.Location = new System.Drawing.Point(0, 0); this.splitContainer1.Name = "splitContainer1"; // // splitContainer1.Panel1 // this.splitContainer1.Panel1.Controls.Add(this.groupBoxEagleEye); this.splitContainer1.Panel1.Controls.Add(this.axTOCControl1); // // splitContainer1.Panel2 // this.splitContainer1.Panel2.Controls.Add(this.statusStrip1); this.splitContainer1.Panel2.Controls.Add(this.axLicenseControl1); this.splitContainer1.Panel2.Controls.Add(this.axMapControl1); this.splitContainer1.Size = new System.Drawing.Size(1042, 585); this.splitContainer1.SplitterDistance = 247; this.splitContainer1.TabIndex = 0; // // groupBoxEagleEye // this.groupBoxEagleEye.Controls.Add(this.axMapControl2); this.groupBoxEagleEye.Dock = System.Windows.Forms.DockStyle.Bottom; this.groupBoxEagleEye.Location = new System.Drawing.Point(0, 261); this.groupBoxEagleEye.Name = "groupBoxEagleEye"; this.groupBoxEagleEye.Size = new System.Drawing.Size(247, 324); this.groupBoxEagleEye.TabIndex = 2; this.groupBoxEagleEye.TabStop = false; this.groupBoxEagleEye.Text = "鹰眼导航"; // // statusStrip1 // this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.lblCoordinate, this.lblResult, this.toolStripStatusLabel1}); this.statusStrip1.Location = new System.Drawing.Point(0, 556); this.statusStrip1.Name = "statusStrip1"; this.statusStrip1.Padding = new System.Windows.Forms.Padding(2, 0, 14, 0); this.statusStrip1.Size = new System.Drawing.Size(791, 29); this.statusStrip1.TabIndex = 0; this.statusStrip1.Text = "statusStrip1"; // // lblCoordinate // this.lblCoordinate.Name = "lblCoordinate"; this.lblCoordinate.Size = new System.Drawing.Size(644, 24); this.lblCoordinate.Spring = true; this.lblCoordinate.Text = "lblCoordinate"; this.lblCoordinate.TextAlign = System.Drawing.ContentAlignment.MiddleRight; // // lblResult // this.lblResult.Name = "lblResult"; this.lblResult.Size = new System.Drawing.Size(85, 24); this.lblResult.Text = "lblResult"; // // axLicenseControl1 // this.axLicenseControl1.Enabled = true; this.axLicenseControl1.Location = new System.Drawing.Point(757, 528); this.axLicenseControl1.Name = "axLicenseControl1"; this.axLicenseControl1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axLicenseControl1.OcxState"))); this.axLicenseControl1.Size = new System.Drawing.Size(32, 32); this.axLicenseControl1.TabIndex = 1; // // txtRotateAngle // this.txtRotateAngle.Name = "txtRotateAngle"; this.txtRotateAngle.Size = new System.Drawing.Size(100, 23); // // contextMenuStripTOC // this.contextMenuStripTOC.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.openAttributeTableToolStripMenuItem}); this.contextMenuStripTOC.Name = "contextMenuStripTOC"; this.contextMenuStripTOC.Size = new System.Drawing.Size(171, 32); // // openAttributeTableToolStripMenuItem // this.openAttributeTableToolStripMenuItem.Name = "openAttributeTableToolStripMenuItem"; this.openAttributeTableToolStripMenuItem.Size = new System.Drawing.Size(170, 28); this.openAttributeTableToolStripMenuItem.Text = "打开属性表"; this.openAttributeTableToolStripMenuItem.Click += new System.EventHandler(this.openAttributeTableToolStripMenuItem_Click); // // axMapControl2 // this.axMapControl2.Dock = System.Windows.Forms.DockStyle.Fill; this.axMapControl2.Location = new System.Drawing.Point(3, 24); this.axMapControl2.Name = "axMapControl2"; this.axMapControl2.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axMapControl2.OcxState"))); this.axMapControl2.Size = new System.Drawing.Size(241, 297); this.axMapControl2.TabIndex = 0; // // axTOCControl1 // this.axTOCControl1.Dock = System.Windows.Forms.DockStyle.Fill; this.axTOCControl1.Location = new System.Drawing.Point(0, 0); this.axTOCControl1.Name = "axTOCControl1"; this.axTOCControl1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axTOCControl1.OcxState"))); this.axTOCControl1.Size = new System.Drawing.Size(247, 585); this.axTOCControl1.TabIndex = 0; this.axTOCControl1.OnMouseDown += new ESRI.ArcGIS.Controls.ITOCControlEvents_Ax_OnMouseDownEventHandler(this.axTOCControl1_OnMouseDown); // // axMapControl1 // this.axMapControl1.Dock = System.Windows.Forms.DockStyle.Fill; this.axMapControl1.Location = new System.Drawing.Point(0, 0); this.axMapControl1.Name = "axMapControl1"; this.axMapControl1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axMapControl1.OcxState"))); this.axMapControl1.Size = new System.Drawing.Size(791, 585); this.axMapControl1.TabIndex = 0; this.axMapControl1.OnMouseDown += new ESRI.ArcGIS.Controls.IMapControlEvents2_Ax_OnMouseDownEventHandler(this.axMapControl1_OnMouseDown); this.axMapControl1.OnMouseMove += new ESRI.ArcGIS.Controls.IMapControlEvents2_Ax_OnMouseMoveEventHandler(this.axMapControl1_OnMouseMove); this.axMapControl1.OnDoubleClick += new ESRI.ArcGIS.Controls.IMapControlEvents2_Ax_OnDoubleClickEventHandler(this.axMapControl1_OnDoubleClick); // // axToolbarControl1 // this.axToolbarControl1.Dock = System.Windows.Forms.DockStyle.Top; this.axToolbarControl1.Location = new System.Drawing.Point(0, 32); this.axToolbarControl1.Name = "axToolbarControl1"; this.axToolbarControl1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axToolbarControl1.OcxState"))); this.axToolbarControl1.Size = new System.Drawing.Size(1042, 28); this.axToolbarControl1.TabIndex = 1; // // 折线周长量测ToolStripMenuItem // this.折线周长量测ToolStripMenuItem.Name = "折线周长量测ToolStripMenuItem"; this.折线周长量测ToolStripMenuItem.Size = new System.Drawing.Size(206, 28); this.折线周长量测ToolStripMenuItem.Text = "折线周长量测"; this.折线周长量测ToolStripMenuItem.Click += new System.EventHandler(this.折线周长量测ToolStripMenuItem_Click); // // toolStripStatusLabel1 // this.toolStripStatusLabel1.Name = "toolStripStatusLabel1"; this.toolStripStatusLabel1.Size = new System.Drawing.Size(46, 24); this.toolStripStatusLabel1.Text = "就绪"; // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(1042, 645); this.Controls.Add(this.panel1); this.Controls.Add(this.axToolbarControl1); this.Controls.Add(this.menuStrip1); this.MainMenuStrip = this.menuStrip1; this.Name = "Form1"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "供水管网地理信息系统"; this.WindowState = System.Windows.Forms.FormWindowState.Maximized; this.Load += new System.EventHandler(this.Form1_Load); this.menuStrip1.ResumeLayout(false); this.menuStrip1.PerformLayout(); this.panel1.ResumeLayout(false); this.splitContainer1.Panel1.ResumeLayout(false); this.splitContainer1.Panel2.ResumeLayout(false); this.splitContainer1.Panel2.PerformLayout(); ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit(); this.splitContainer1.ResumeLayout(false); this.groupBoxEagleEye.ResumeLayout(false); this.statusStrip1.ResumeLayout(false); this.statusStrip1.PerformLayout(); ((System.ComponentModel.ISupportInitialize)(this.axLicenseControl1)).EndInit(); this.contextMenuStripTOC.ResumeLayout(false); ((System.ComponentModel.ISupportInitialize)(this.axMapControl2)).EndInit(); ((System.ComponentModel.ISupportInitialize)(this.axTOCControl1)).EndInit(); ((System.ComponentModel.ISupportInitialize)(this.axMapControl1)).EndInit(); ((System.ComponentModel.ISupportInitialize)(this.axToolbarControl1)).EndInit(); this.ResumeLayout(false); this.PerformLayout(); } #endregion private System.Windows.Forms.MenuStrip menuStrip1; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem1; private ESRI.ArcGIS.Controls.AxToolbarControl axToolbarControl1; private System.Windows.Forms.Panel panel1; private System.Windows.Forms.SplitContainer splitContainer1; private ESRI.ArcGIS.Controls.AxMapControl axMapControl1; private System.Windows.Forms.StatusStrip statusStrip1; private ESRI.ArcGIS.Controls.AxLicenseControl axLicenseControl1; private ESRI.ArcGIS.Controls.AxTOCControl axTOCControl1; private System.Windows.Forms.ToolStripStatusLabel lblCoordinate; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem2; private System.Windows.Forms.ToolStripTextBox txtRotateAngle; private System.Windows.Forms.GroupBox groupBoxEagleEye; private ESRI.ArcGIS.Controls.AxMapControl axMapControl2; private System.Windows.Forms.ContextMenuStrip contextMenuStripTOC; private System.Windows.Forms.ToolStripMenuItem openAttributeTableToolStripMenuItem; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem3; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem4; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem5; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem6; private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem7; private System.Windows.Forms.ToolStripMenuItem 清除选择ToolStripMenuItem; private System.Windows.Forms.ToolStripMenuItem 空间量测ToolStripMenuItem; private System.Windows.Forms.ToolStripMenuItem 面积量测ToolStripMenuItem; private System.Windows.Forms.ToolStripMenuItem 周长量测ToolStripMenuItem; private System.Windows.Forms.ToolStripMenuItem 点坐标量测ToolStripMenuItem; private System.Windows.Forms.ToolStripMenuItem 清除已绘制图形ToolStripMenuItem; private System.Windows.Forms.ToolStripStatusLabel lblResult; private System.Windows.Forms.ToolStripMenuItem 折线周长量测ToolStripMenuItem; private System.Windows.Forms.ToolStripStatusLabel toolStripStatusLabel1; } } using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.esriSystem; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Geodatabase; using ESRI.ArcGIS.Display; namespace WaterPipelineGIS2 { public partial class main : Form { private IFeatureLayer _selectedFeatureLayer; private System.Drawing.Point _lastRightClickPosition; private SelectionMode currentMode = SelectionMode.None; private IGraphicsContainer _spatialSelectionGraphics; private IGraphicsContainer _attributeHighlightGraphics; private ToolStripStatusLabel lblStatus; // 添加量测模式枚举 public enum MeasureMode { None, PolygonArea, PolygonPerimeter, PolylineLength, PointCoordinate } // 添加量测相关变量 private MeasureMode currentMeasureMode = MeasureMode.None; private List<IPoint> measurePoints = new List<IPoint>(); private IElement tempMeasureElement; private List<IElement> measurementElements = new List<IElement>(); private bool isMeasuring = false; // 修改后的SelectionMode枚举 public enum SelectionMode { None, Rectangle, Circle, Polygon, Polyline } private void InitializeGraphicsContainers() { try { // 确保地图控件已初始化 if (axMapControl1 == null) return; // 确保ActiveView已初始化 if (axMapControl1.ActiveView == null) { // 尝试刷新视图 axMapControl1.ActiveView.Refresh(); } if (axMapControl1.ActiveView != null) { _spatialSelectionGraphics = axMapControl1.ActiveView.GraphicsContainer; _attributeHighlightGraphics = axMapControl1.ActiveView.GraphicsContainer; } } catch (Exception ex) { MessageBox.Show("初始化图形容器失败: " + ex.Message); } } private void Form1_Load(object sender, EventArgs e) { // 强制创建地图控件 if (!axMapControl1.Created) axMapControl1.CreateControl(); // 延迟初始化图形容器 axMapControl1.ActiveView.Refresh(); InitializeGraphicsContainers(); } public main() { InitializeComponent(); // 确保设计器初始化完成 if (statusStrip1 != null) { lblStatus = new ToolStripStatusLabel(); statusStrip1.Items.Add(lblStatus); lblStatus.Text = "就绪"; } // 添加窗体加载事件处理程序 this.Load += Form1_LoadHandler; // === 修改结束 === // 事件绑定保持不变 axMapControl1.OnMouseMove += axMapControl1_OnMouseMove; axMapControl1.OnMouseDown += axMapControl1_OnMouseDown; axMapControl1.OnDoubleClick += new IMapControlEvents2_Ax_OnDoubleClickEventHandler(axMapControl1_OnDoubleClick); } // === 新增方法 === private void Form1_LoadHandler(object sender, EventArgs e) { // 确保地图控件已创建 if (axMapControl1 != null && !axMapControl1.Created) { axMapControl1.CreateControl(); } // 初始化图形容器 InitializeGraphicsContainers(); // 确保 ActiveView 有效 if (axMapControl1.ActiveView != null) { // 刷新视图以确保图形容器可用 axMapControl1.ActiveView.Refresh(); } } private void axMapControl1_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e) { try { // 公共坐标显示 double mapX = e.mapX; double mapY = e.mapY; lblCoordinate.Text = "X: {mapX:F3} Y: {mapY:F3}"; // 量测模式预览 if (isMeasuring && measurePoints.Count > 0) { switch (currentMeasureMode) { case MeasureMode.PolygonArea: case MeasureMode.PolygonPerimeter: DrawTempPolygonMeasure(e.x, e.y); break; case MeasureMode.PolylineLength: DrawTempPolylineMeasure(e.x, e.y); break; } } } catch (Exception ex) { Console.WriteLine("鼠标移动错误: " + ex.Message); } } private void toolStripMenuItem2_Click(object sender, EventArgs e) { using (var rotateForm = new RotateForm()) { if (rotateForm.ShowDialog() == DialogResult.OK) { try { axMapControl1.Rotation = rotateForm.RotationAngle; axMapControl1.ActiveView.Refresh(); lblCoordinate.Text += " 旋转角度:" + rotateForm.RotationAngle + "°"; } catch (Exception ex) { MessageBox.Show("旋转失败:" + ex.Message); } } } } private void axTOCControl1_OnMouseDown(object sender, ITOCControlEvents_OnMouseDownEvent e) { if (e.button == 2) // 右键 { _lastRightClickPosition = new System.Drawing.Point(e.x, e.y); ITOCControl2 tocControl = (ITOCControl2)axTOCControl1.Object; IBasicMap basicMap = null; ILayer layer = null; object other = Type.Missing; object index = Type.Missing; esriTOCControlItem itemType = esriTOCControlItem.esriTOCControlItemNone; tocControl.HitTest(e.x, e.y, ref itemType, ref basicMap, ref layer, ref other, ref index); if (itemType == esriTOCControlItem.esriTOCControlItemLayer && layer != null) { contextMenuStripTOC.Show(axTOCControl1, e.x, e.y); } } } private void openAttributeTableToolStripMenuItem_Click(object sender, EventArgs e) { ITOCControl2 tocControl = (ITOCControl2)axTOCControl1.Object; IBasicMap basicMap = null; ILayer layer = null; object other = Type.Missing; object index = Type.Missing; esriTOCControlItem itemType = esriTOCControlItem.esriTOCControlItemNone; System.Drawing.Point screenPos = contextMenuStripTOC.PointToClient(Control.MousePosition); System.Drawing.Point controlPos = axTOCControl1.PointToClient(Control.MousePosition); tocControl.HitTest( controlPos.X, controlPos.Y, ref itemType, ref basicMap, ref layer, ref other, ref index ); IFeatureLayer featureLayer = layer as IFeatureLayer; if (featureLayer != null) { _selectedFeatureLayer = featureLayer; AttributeTableForm attrForm = new AttributeTableForm( _selectedFeatureLayer, this ); attrForm.Show(); } } private void SetSelectionSymbol() { ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Color = GetRgbColor(255, 0, 0); fillSymbol.Style = esriSimpleFillStyle.esriSFSSolid; ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(255, 255, 0); lineSymbol.Width = 2; fillSymbol.Outline = lineSymbol; if (_selectedFeatureLayer != null) { IGeoFeatureLayer geoLayer = (IGeoFeatureLayer)_selectedFeatureLayer; ISimpleRenderer renderer = new SimpleRendererClass(); renderer.Symbol = (ISymbol)fillSymbol; geoLayer.Renderer = (IFeatureRenderer)renderer; axMapControl1.ActiveView.Refresh(); } } private IRgbColor GetRgbColor(int r, int g, int b) { IRgbColor color = new RgbColorClass(); color.Red = r; color.Green = g; color.Blue = b; return color; } private IRgbColor GetRgbColor(int r, int g, int b, int alpha) { IRgbColor color = new RgbColorClass(); color.Red = r; color.Green = g; color.Blue = b; color.Transparency = (byte)(255 - alpha); return color; } public void ActivateFeatureLayer(IFeatureLayer featureLayer) { if (featureLayer == null) return; _selectedFeatureLayer = featureLayer; axMapControl1.ActiveView.Refresh(); axTOCControl1.Update(); } public void HighlightAndZoomToFeature(IFeatureLayer featureLayer, int oid) { try { if (featureLayer == null || featureLayer.FeatureClass == null) { MessageBox.Show("图层或要素类无效!"); return; } IFeature feature = featureLayer.FeatureClass.GetFeature(oid); if (feature == null || feature.Shape == null) { MessageBox.Show("要素 OID " + oid + " 不存在或无几何!"); return; } IGeometry geometry = feature.Shape; IEnvelope envelope = geometry.Envelope; if (envelope.IsEmpty || envelope.Width == 0 || envelope.Height == 0) { envelope.Expand(10, 10, true); } else { envelope.Expand(1.5, 1.5, true); } axMapControl1.Extent = envelope; axMapControl1.ActiveView.ScreenDisplay.UpdateWindow(); HighlightGeometry(geometry); } catch (Exception ex) { MessageBox.Show("高亮要素失败: " + ex.Message); } } private void btnRectSelect_Click(object sender, EventArgs e) { currentMeasureMode = MeasureMode.None; // 互斥 currentMode = SelectionMode.Rectangle; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; lblStatus.Text = "矩形选择模式"; } private void btnCircleSelect_Click(object sender, EventArgs e) { currentMeasureMode = MeasureMode.None; // 互斥 currentMode = SelectionMode.Circle; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; lblStatus.Text = "圆形选择模式"; } private void btnPolygonSelect_Click(object sender, EventArgs e) { currentMeasureMode = MeasureMode.None; // 互斥 currentMode = SelectionMode.Polygon; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; lblStatus.Text = "多边形选择模式"; } private void btnLineSelect_Click(object sender, EventArgs e) { currentMeasureMode = MeasureMode.None; // 互斥 currentMode = SelectionMode.Polyline; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; lblStatus.Text = "折线选择模式"; } private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e) { try { // 量测模式处理 if (isMeasuring) { HandleMeasureMode(e); return; } // 左键点击 if (e.button == 1) { if (currentMode != SelectionMode.None) { HandleSpatialSelection(e); } } } catch (Exception ex) { MessageBox.Show("操作错误: " + ex.Message); } } private void PerformSpatialSelection(IGeometry geometry) { try { IMap map = axMapControl1.Map; if (map == null) return; map.ClearSelection(); for (int i = 0; i < map.LayerCount; i++) { IFeatureLayer featureLayer = map.get_Layer(i) as IFeatureLayer; if (featureLayer == null || !featureLayer.Valid || featureLayer.FeatureClass == null) continue; ISpatialFilter filter = new SpatialFilterClass(); filter.Geometry = geometry; filter.GeometryField = featureLayer.FeatureClass.ShapeFieldName; filter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; IFeatureSelection selection = (IFeatureSelection)featureLayer; selection.SelectFeatures(filter, esriSelectionResultEnum.esriSelectionResultNew, false); } axMapControl1.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null); axMapControl1.ActiveView.Refresh(); } catch (Exception ex) { MessageBox.Show("空间查询失败: " + ex.Message); } } private void HighlightGeometry(IGeometry geometry) { try { if (_spatialSelectionGraphics != null) { _spatialSelectionGraphics.DeleteAllElements(); } IElement element = null; switch (geometry.GeometryType) { case esriGeometryType.esriGeometryPolygon: { ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Color = GetRgbColor(255, 0, 0, 80); ISimpleLineSymbol outline = new SimpleLineSymbolClass(); outline.Color = GetRgbColor(255, 0, 0); outline.Width = 2; fillSymbol.Outline = outline; element = new PolygonElementClass(); element.Geometry = geometry; ((IFillShapeElement)element).Symbol = fillSymbol; } break; case esriGeometryType.esriGeometryPolyline: { ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(255, 0, 0); lineSymbol.Width = 3; element = new LineElementClass(); element.Geometry = geometry; ((ILineElement)element).Symbol = lineSymbol; } break; case esriGeometryType.esriGeometryPoint: { ISimpleMarkerSymbol markerSymbol = new SimpleMarkerSymbolClass(); markerSymbol.Color = GetRgbColor(255, 0, 0); markerSymbol.Size = 12; element = new MarkerElementClass(); element.Geometry = geometry; ((IMarkerElement)element).Symbol = markerSymbol; } break; } if (element != null && _spatialSelectionGraphics != null) { _spatialSelectionGraphics.AddElement(element, 0); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } catch (Exception ex) { MessageBox.Show("高亮显示失败: " + ex.Message); } } private void btnClearSelection_Click(object sender, EventArgs e) { try { if (axMapControl1.Map != null) { axMapControl1.Map.ClearSelection(); } if (_spatialSelectionGraphics != null) { _spatialSelectionGraphics.DeleteAllElements(); } axMapControl1.ActiveView.PartialRefresh( esriViewDrawPhase.esriViewGeoSelection | esriViewDrawPhase.esriViewGraphics, null, null ); axMapControl1.ActiveView.Refresh(); currentMode = SelectionMode.None; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault; lblStatus.Text = "就绪"; } catch (Exception ex) { MessageBox.Show("清除选择失败: " + ex.Message); } } private void axMapControl1_OnDoubleClick(object sender, IMapControlEvents2_OnDoubleClickEvent e) { if (currentMode != SelectionMode.None) { currentMode = SelectionMode.None; axMapControl1.CurrentTool = null; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault; lblStatus.Text = "就绪"; } } private void HandleSpatialSelection(IMapControlEvents2_OnMouseDownEvent e) { IGeometry geometry = null; switch (currentMode) { case SelectionMode.Rectangle: IEnvelope rectEnv = axMapControl1.TrackRectangle(); if (rectEnv != null) { IPolygon polygon = new PolygonClass(); polygon.SpatialReference = axMapControl1.SpatialReference; ISegmentCollection segColl = (ISegmentCollection)polygon; segColl.SetRectangle(rectEnv); geometry = (IGeometry)polygon; } break; case SelectionMode.Circle: IEnvelope envelope = axMapControl1.TrackRectangle(); if (envelope.Width <= 0 || envelope.Height <= 0) { MessageBox.Show("请拖拽有效的矩形范围以创建圆形!"); return; } IPoint center = new PointClass(); center.PutCoords( (envelope.XMin + envelope.XMax) / 2, (envelope.YMin + envelope.YMax) / 2 ); double radius = Math.Max(envelope.Width, envelope.Height) / 2; ICircularArc circularArc = new CircularArcClass(); IConstructCircularArc constructArc = (IConstructCircularArc)circularArc; constructArc.ConstructCircle(center, radius, true); ISegmentCollection circleSegColl = new PolygonClass(); circleSegColl.AddSegment((ISegment)circularArc); geometry = (IGeometry)circleSegColl; geometry.SpatialReference = axMapControl1.SpatialReference; break; case SelectionMode.Polygon: geometry = axMapControl1.TrackPolygon(); break; case SelectionMode.Polyline: geometry = axMapControl1.TrackLine(); break; } if (geometry != null) { PerformSpatialSelection(geometry); HighlightGeometry(geometry); } } // 创建折线几何 private IPolyline CreatePolyline(List<IPoint> points, IPoint currentPoint = null) { try { // 创建点集合 IPointCollection pointCollection = new PolylineClass(); // 添加所有点 foreach (IPoint point in points) { if (point != null) { pointCollection.AddPoint(point); } } // 添加当前鼠标位置 if (currentPoint != null) { pointCollection.AddPoint(currentPoint); } // 转换为折线 IPolyline polyline = pointCollection as IPolyline; if (polyline == null) return null; // 设置空间参考(关键!) if (axMapControl1.SpatialReference != null) { polyline.SpatialReference = axMapControl1.SpatialReference; } // 简化几何 ITopologicalOperator topoOp = polyline as ITopologicalOperator; if (topoOp != null) { topoOp.Simplify(); } return polyline; } catch (Exception ex) { MessageBox.Show("创建折线时出错: " + ex.Message); return null; } } // 创建多边形几何 private IPolygon CreatePolygon(List<IPoint> points, IPoint currentPoint = null) { try { // 创建点集合 IPointCollection pointCollection = new PolygonClass(); // 添加所有点 foreach (IPoint point in points) { if (point != null) { pointCollection.AddPoint(point); } } // 添加当前鼠标位置 if (currentPoint != null) { pointCollection.AddPoint(currentPoint); } // 转换为多边形 IPolygon polygon = pointCollection as IPolygon; if (polygon == null) return null; // 设置空间参考(关键!) if (axMapControl1.SpatialReference != null) { polygon.SpatialReference = axMapControl1.SpatialReference; } // 简化几何 ITopologicalOperator topoOp = polygon as ITopologicalOperator; if (topoOp != null) { topoOp.Simplify(); } return polygon; } catch (Exception ex) { MessageBox.Show("创建多边形时出错: " + ex.Message); return null; } } // 量测菜单项点击事件处理 private void 面积量测ToolStripMenuItem_Click(object sender, EventArgs e) { StartMeasureMode(MeasureMode.PolygonArea); } private void 周长量测ToolStripMenuItem_Click(object sender, EventArgs e) { StartMeasureMode(MeasureMode.PolygonPerimeter); } private void 折线周长量测ToolStripMenuItem_Click(object sender, EventArgs e) { StartMeasureMode(MeasureMode.PolylineLength); } private void 点坐标量测ToolStripMenuItem_Click(object sender, EventArgs e) { StartMeasureMode(MeasureMode.PointCoordinate); } // 开始量测模式 private void StartMeasureMode(MeasureMode mode) { currentMode = SelectionMode.None; // 互斥 // 清除之前的状态 EndMeasureMode(); currentMeasureMode = mode; isMeasuring = true; measurePoints.Clear(); // 设置鼠标指针 axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair; // 设置状态栏提示 switch (mode) { case MeasureMode.PolygonArea: lblStatus.Text = "面积量测: 左键添加顶点,右键完成"; break; case MeasureMode.PolygonPerimeter: lblStatus.Text = "周长量测: 左键添加顶点,右键完成"; break; case MeasureMode.PolylineLength: lblStatus.Text = "长度量测: 左键添加顶点,右键完成"; break; case MeasureMode.PointCoordinate: lblStatus.Text = "点坐标量测: 左键点击地图获取坐标"; break; } } // 结束量测模式 private void EndMeasureMode() { ClearTempMeasureElement(); measurePoints.Clear(); isMeasuring = false; currentMeasureMode = MeasureMode.None; axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault; lblStatus.Text = "就绪"; } // 绘制临时多边形量测图形 private void DrawTempPolygonMeasure(int x, int y) { if (measurePoints.Count == 0) return; try { // 清除之前的临时图形 ClearTempMeasureElement(); // 获取当前鼠标位置 IPoint currentPoint = axMapControl1.ToMapPoint(x, y); // 创建临时多边形(包括当前鼠标位置) IPolygon polygon = CreatePolygon(measurePoints, currentPoint); // 创建符号(蓝色边框,半透明填充) ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(0, 0, 255); // 蓝色 lineSymbol.Width = 2; ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Outline = lineSymbol; fillSymbol.Color = GetRgbColor(0, 255, 255, 100); // 青色半透明 // 创建元素 tempMeasureElement = new PolygonElementClass(); tempMeasureElement.Geometry = polygon; ((IFillShapeElement)tempMeasureElement).Symbol = fillSymbol; // 添加到地图 IGraphicsContainer graphics = axMapControl1.Map as IGraphicsContainer; if (graphics != null) { graphics.AddElement(tempMeasureElement, 0); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } catch (Exception ex) { Console.WriteLine("量测预览错误: " + ex.Message); } } // 绘制临时折线量测图形 private void DrawTempPolylineMeasure(int x, int y) { if (measurePoints.Count == 0) return; try { // 清除之前的临时图形 ClearTempMeasureElement(); // 获取当前鼠标位置 IPoint currentPoint = axMapControl1.ToMapPoint(x, y); // 创建临时折线(包括当前鼠标位置) IPolyline polyline = CreatePolyline(measurePoints, currentPoint); // 创建符号(红色粗线) ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(255, 0, 0); // 红色 lineSymbol.Width = 3; // 创建元素 tempMeasureElement = new LineElementClass(); tempMeasureElement.Geometry = polyline; ((ILineElement)tempMeasureElement).Symbol = lineSymbol; // 添加到地图 IGraphicsContainer graphics = axMapControl1.Map as IGraphicsContainer; if (graphics != null) { graphics.AddElement(tempMeasureElement, 0); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } catch (Exception ex) { Console.WriteLine("量测预览错误: " + ex.Message); } } // 清除临时量测图形 private void ClearTempMeasureElement() { if (tempMeasureElement != null) { IGraphicsContainer graphics = axMapControl1.Map as IGraphicsContainer; if (graphics != null) { graphics.DeleteElement(tempMeasureElement); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } tempMeasureElement = null; } } // 处理量测模式 private void HandleMeasureMode(IMapControlEvents2_OnMouseDownEvent e) { try { // 获取当前鼠标位置 IPoint point = axMapControl1.ToMapPoint(e.x, e.y); // 左键添加点 if (e.button == 1) { switch (currentMeasureMode) { case MeasureMode.PolygonArea: case MeasureMode.PolygonPerimeter: case MeasureMode.PolylineLength: measurePoints.Add(point); break; case MeasureMode.PointCoordinate: CompletePointMeasure(point); break; } } // 右键完成量测 else if (e.button == 2) { switch (currentMeasureMode) { case MeasureMode.PolygonArea: CompletePolygonMeasure(true); break; case MeasureMode.PolygonPerimeter: CompletePolygonMeasure(false); break; case MeasureMode.PolylineLength: CompletePolylineMeasure(); break; } } } catch (Exception ex) { MessageBox.Show("量测错误: " + ex.Message); } } // 完成多边形量测 private void CompletePolygonMeasure(bool isArea) { if (measurePoints.Count < 3) { MessageBox.Show("多边形至少需要3个顶点"); return; } try { // 创建最终多边形 IPolygon polygon = CreatePolygon(measurePoints); if (polygon == null || polygon.IsEmpty) { MessageBox.Show("无法创建有效多边形"); return; } // 计算量测结果 IArea area = polygon as IArea; double result = 0; string unit = ""; string title = ""; if (isArea) { // 面积量测 result = area.Area; // 平方米 unit = "平方米"; title = "面积量测结果"; } else { // 周长量测 ICurve curve = polygon as ICurve; result = curve.Length; // 米 unit = "米"; title = "周长量测结果"; } // 构建结果消息 string message = string.Format("{0:0.##} {1}", result, unit); if (isArea) { double hectareArea = result / 10000; // 公顷 message += string.Format("\n{0:0.##} 公顷", hectareArea); } else { double kilometer = result / 1000; // 千米 message += string.Format("\n{0:0.##} 千米", kilometer); } // 使用自定义窗体显示结果 ShowMeasureResult(title, message); // 绘制最终量测图形 DrawFinalMeasureElement(polygon, isArea); } catch (Exception ex) { MessageBox.Show("量测出错: " + ex.Message); } finally { // 结束量测模式 EndMeasureMode(); } } // 完成折线量测 private void CompletePolylineMeasure() { if (measurePoints.Count < 2) { MessageBox.Show("折线至少需要2个顶点"); return; } try { // 创建最终折线 IPolyline polyline = CreatePolyline(measurePoints); if (polyline == null || polyline.IsEmpty) { MessageBox.Show("无法创建有效折线"); return; } // 计算长度 ICurve curve = polyline as ICurve; double length = curve.Length; // 米 double kilometer = length / 1000; // 千米 // 构建结果消息 string message = string.Format("{0:0.##} 米\n{1:0.##} 千米", length, kilometer); // 使用自定义窗体显示结果 ShowMeasureResult("长度量测结果", message); // 绘制最终量测图形 DrawFinalMeasureElement(polyline); } catch (Exception ex) { MessageBox.Show("量测出错: " + ex.Message); } finally { // 结束量测模式 EndMeasureMode(); } } // 完成点坐标量测 private void CompletePointMeasure(IPoint point) { try { // 获取坐标系信息 string coordSystem = "未知坐标系"; if (axMapControl1.SpatialReference != null) { coordSystem = axMapControl1.SpatialReference.Name; } // 构建结果消息 string message = string.Format("X: {0:0.###}\nY: {1:0.###}\n\n坐标系: {2}", point.X, point.Y, coordSystem); // 使用自定义窗体显示结果 ShowMeasureResult("坐标量测结果", message); // 绘制点标记 DrawPointMarker(point); } catch (Exception ex) { MessageBox.Show("量测出错: " + ex.Message); } finally { // 结束量测模式 EndMeasureMode(); } } // 绘制最终量测图形 private void DrawFinalMeasureElement(IGeometry geometry, bool isArea = true) { IGraphicsContainer graphics = axMapControl1.Map as IGraphicsContainer; if (graphics == null) return; IElement element = null; if (geometry is IPolygon) { // 创建符号(蓝色边框,半透明填充) ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(0, 0, 255); // 蓝色 lineSymbol.Width = 2; ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass(); fillSymbol.Outline = lineSymbol; fillSymbol.Color = GetRgbColor(0, 255, 255, 100); // 青色半透明 // 创建元素 element = new PolygonElementClass(); element.Geometry = geometry; ((IFillShapeElement)element).Symbol = fillSymbol; } else if (geometry is IPolyline) { // 创建符号(红色粗线) ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass(); lineSymbol.Color = GetRgbColor(255, 0, 0); // 红色 lineSymbol.Width = 3; // 创建元素 element = new LineElementClass(); element.Geometry = geometry; ((ILineElement)element).Symbol = lineSymbol; } if (element != null) { // 添加到地图 graphics.AddElement(element, 0); measurementElements.Add(element); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } // 绘制点标记 private void DrawPointMarker(IPoint point) { IGraphicsContainer graphics = axMapControl1.Map as IGraphicsContainer; if (graphics == null) return; // 创建符号(绿色十字) ISimpleMarkerSymbol markerSymbol = new SimpleMarkerSymbolClass(); markerSymbol.Style = esriSimpleMarkerStyle.esriSMSCross; markerSymbol.Color = GetRgbColor(0, 255, 0); // 绿色 markerSymbol.Size = 12; markerSymbol.Outline = true; markerSymbol.OutlineColor = GetRgbColor(0, 0, 0); // 黑色边框 markerSymbol.OutlineSize = 1; // 创建元素 IMarkerElement markerElement = new MarkerElementClass(); markerElement.Symbol = markerSymbol; ((IElement)markerElement).Geometry = point; // 添加到地图 graphics.AddElement((IElement)markerElement, 0); measurementElements.Add((IElement)markerElement); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } // 清除已绘制图形 private void 清除已绘制图形ToolStripMenuItem_Click(object sender, EventArgs e) { ClearMeasurementGraphics(); } // 清除量测图形 private void ClearMeasurementGraphics() { try { IActiveView activeView = axMapControl1.ActiveView; IGraphicsContainer graphics = activeView.GraphicsContainer; if (graphics == null) return; // 删除所有量测图形元素 foreach (IElement element in measurementElements) { graphics.DeleteElement(element); } // 清空列表 measurementElements.Clear(); // 强制刷新地图视图 activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); activeView.Refresh(); lblStatus.Text = "已清除所有量测图形"; } catch (Exception ex) { MessageBox.Show("清除图形时出错: " + ex.Message); } } // 在 Form1 类中添加新方法 private void ShowMeasureResult(string title, string message) { using (MeasureResultForm resultForm = new MeasureResultForm(title, message)) { resultForm.ShowDialog(this); } } } }此代码我想实现鹰眼导航(即在此代码中,mapcontrol控件(axMapControl1)中显示的是主地图,而左下角的mapcontrol控件(axMapControl2)进行鹰眼导航,axMapControl1中的视野范围在axMapControl2中用深蓝色边框进行框起来。无论是主视图大小缩放还是通过鼠标移动视角,在axMapControl2都要跟着框起来,他固定不动但是蓝色边框跟着移动)注意我的vs版本为2010,给出完整的修改代码(包括designer.cs),要细致的修改操作教程
最新发布
07-14
修改代码,使绘制矩形的起点为在axMC上点击第一个点 using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.Geodatabase; using ESRI.ArcGIS.Geometry; using System; using System.Collections.Generic; using System.Windows.Forms; namespace DEMO { public partial class SpatialQueryForm : Form { private FormMain _mainForm; private AxMapControl _mapControl; private IGeometry _queryGeometry; // 空间关系字典 private readonly Dictionary<string, esriSpatialRelEnum> spatialRelations = new Dictionary<string, esriSpatialRelEnum> { { "相交", esriSpatialRelEnum.esriSpatialRelIntersects }, { "包含", esriSpatialRelEnum.esriSpatialRelContains }, { "被包含", esriSpatialRelEnum.esriSpatialRelWithin }, { "相接", esriSpatialRelEnum.esriSpatialRelTouches } }; public SpatialQueryForm(FormMain mainForm) { InitializeComponent(); _mainForm = mainForm; _mapControl = _mainForm.MapControl; lblStatus.Text = "未绘制"; } private void SpatialQueryForm_Load(object sender, EventArgs e) { // 加载图层 LoadLayers(); // 加载空间关系 comBSpatialRel.Items.Clear(); foreach (var rel in spatialRelations.Keys) { comBSpatialRel.Items.Add(rel); } comBSpatialRel.SelectedIndex = 0; // 默认选择"相交" } private void LoadLayers() { comBLayer.Items.Clear(); for (int i = 0; i < _mapControl.LayerCount; i++) { ILayer layer = _mapControl.get_Layer(i); if (layer is IFeatureLayer) comBLayer.Items.Add(layer.Name); } if (comBLayer.Items.Count > 0) comBLayer.SelectedIndex = 0; } public void ReceiveDrawnGeometry(IGeometry geometry) { _queryGeometry = geometry; lblStatus.Text = "已接收绘制图形,点击查询按钮执行"; } private void btnDraw_Click(object sender, EventArgs e) { if (_mapControl == null) return; // 重置状态 lblStatus.Text = "未绘制"; try { _mapControl.MousePointer = esriControlsMousePointer.esriPointerCrosshair; lblStatus.Text = "请在地图上绘制矩形..."; // 绘制矩形(起点为点击的第一个点) _queryGeometry = _mapControl.TrackRectangle(); if (_queryGeometry != null && !_queryGeometry.IsEmpty) { lblStatus.Text = "矩形绘制完成,点击查询按钮执行"; } else { lblStatus.Text = "未绘制矩形"; } } catch (Exception ex) { MessageBox.Show($"绘制错误: {ex.Message}"); lblStatus.Text = "绘制失败"; } finally { _mapControl.MousePointer = esriControlsMousePointer.esriPointerDefault; } } private void btnQuery_Click(object sender, EventArgs e) { if (comBLayer.SelectedIndex == -1) { MessageBox.Show("请选择图层"); return; } if (_queryGeometry == null || _queryGeometry.IsEmpty) { MessageBox.Show("请先绘制查询矩形"); return; } string layerName = comBLayer.SelectedItem.ToString(); IFeatureLayer featureLayer = null; for (int i = 0; i < _mapControl.LayerCount; i++) { if (_mapControl.get_Layer(i).Name == layerName) { featureLayer = _mapControl.get_Layer(i) as IFeatureLayer; break; } } if (featureLayer == null) { MessageBox.Show("未找到指定图层"); return; } // 获取选择的空间关系 string selectedRel = comBSpatialRel.SelectedItem.ToString(); esriSpatialRelEnum spatialRel = spatialRelations[selectedRel]; try { ISpatialFilter spatialFilter = new SpatialFilterClass { Geometry = _queryGeometry, SpatialRel = spatialRel, GeometryField = featureLayer.FeatureClass.ShapeFieldName }; IFeatureSelection featureSelection = (IFeatureSelection)featureLayer; featureSelection.Clear(); // 执行选择 featureSelection.SelectFeatures(spatialFilter, esriSelectionResultEnum.esriSelectionResultNew, false); // 刷新视图 _mapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null); _mapControl.ActiveView.Refresh(); // 显示结果 int count = featureSelection.SelectionSet.Count; lblStatus.Text = $"查询完成,选中 {count} 个要素"; MessageBox.Show($"空间查询完成,共选中 {count} 个要素", "查询结果", MessageBoxButtons.OK, MessageBoxIcon.Information); } catch (Exception ex) { MessageBox.Show($"查询失败: {ex.Message}"); lblStatus.Text = "查询失败"; } } private void btnCancel_Click(object sender, EventArgs e) { this.Close(); } // 图层选择变更时清除查询结果 private void comBLayer_SelectedIndexChanged(object sender, EventArgs e) { ClearSelection(); } // 清除所有选择 private void ClearSelection() { try { for (int i = 0; i < _mapControl.LayerCount; i++) { IFeatureLayer featureLayer = _mapControl.get_Layer(i) as IFeatureLayer; if (featureLayer != null) { IFeatureSelection featureSelection = featureLayer as IFeatureSelection; featureSelection.Clear(); } } // 刷新地图 _mapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null); _mapControl.ActiveView.Refresh(); // 重置状态 lblStatus.Text = "未绘制"; _queryGeometry = null; } catch (Exception ex) { MessageBox.Show($"清除选择失败: {ex.Message}"); } } private void comBSpatialRel_SelectedIndexChanged(object sender, EventArgs e) { ClearSelection(); } } }
06-06
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