public void LineSelect(AxMapControl mapControl)
{
this.init();
IGeometry pGeometryL;
pGeometryL = mapControl.TrackLine();
//新建选择集对象
ISelectionEnvironment pSelectionEnvL;
pSelectionEnvL = new SelectionEnvironmentClass();
//改变选择集的默认颜色
pSelectionEnvL.DefaultColor = pColor;
//选择要素,并将其放入选择集
mapControl.Map.SelectByShape(pGeometryL, pSelectionEnvL, false);
mapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection,
null, null);
}
public void AddLineByWrite(AxMapControl axMapControl1, IFeatureLayer l, double x, double y)
{
ESRI.ArcGIS.Geometry.esriGeometryType featype = l.FeatureClass.ShapeType;
if (featype == esriGeometryType.esriGeometryPolyline)//判断层是否为线层
{
//IFeatureLayer l = MapCtr.Map.get_Layer(0) as IFeatureLayer;
IFeatureClass fc = l.FeatureClass;
IFeatureClassWrite fr = fc as IFeatureClassWrite;
IWorkspaceEdit w = (fc as IDataset).Workspace as IWorkspaceEdit;
IFeature f;
//可选参数的设置
object Missing = Type.Missing;
IPoint p = new PointClass();
w.StartEditing(true);
w.StartEditOperation();
f = fc.CreateFeature();
//定义一个多义线对象
IRgbColor color = new RgbColor();
// 设置颜色属性
color.Red = 255;
color.Transparency = 255;
//ISimpleLineSymbol PlyLine = new SimpleLineSymbolClass();
//PlyLine.Color = color;
//PlyLine.Style = esriSimpleLineStyle.esriSLSInsideFrame;
//PlyLine.Width = 1;
IGeometry iGeom = axMapControl1.TrackLine();
AddLine(axMapControl1, iGeom);
f.Shape = iGeom;
fr.WriteFeature(f);
w.StopEditOperation();
w.StopEditing(true);
}
}
/// <summary>
/// 测量线
/// </summary>
/// <param name="axMapControl"></param>
public static void CreatLine(AxMapControl axMapControl)
{
try
{
IActiveView pActiveView = axMapControl.ActiveView;
IScreenDisplay screenDisplay = pActiveView.ScreenDisplay;
ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass();
IRgbColor rgbClolor = new RgbColorClass();
lineSymbol.Width = 2;
rgbClolor.Red = 255;
lineSymbol.Color = rgbClolor;
IPolyline pLine = axMapControl.TrackLine() as IPolyline;
screenDisplay.StartDrawing(screenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
screenDisplay.SetSymbol((ISymbol)lineSymbol);
screenDisplay.DrawPolyline(pLine);
screenDisplay.FinishDrawing();
double l = Math.Abs(pLine.Length*100);
//axMapControl.Map.MapUnits = esriUnits.esriKilometers;
//DialogResult r =MessageBox.Show("长度为：" + l.ToString() + "公里（km）","长度测量结果");
MessageBox.Show("长度为：" + Convert.ToDouble(l).ToString("0.000") + "千米（km）", "长度测量结果");
IGraphicsContainer pDeletElement = axMapControl.ActiveView.FocusMap as IGraphicsContainer;
pDeletElement.DeleteAllElements();
axMapControl.ActiveView.Refresh();
//screenDisplay.RemoveAllCaches();
// typeof(AxMapControl).GetEvent("OnMouseDown").RemoveEventHandler(axMapControl,);
}
catch
{ }
}
public void AddLineByWrite(AxMapControl axMapControl1, IFeatureLayer l, double x, double y)
{
ESRI.ArcGIS.Geometry.esriGeometryType featype = l.FeatureClass.ShapeType;
if (featype == esriGeometryType.esriGeometryPolyline)//�жϲ��Ƿ�Ϊ�߲�
{
//IFeatureLayer l = MapCtr.Map.get_Layer(0) as IFeatureLayer;
IFeatureClass fc = l.FeatureClass;
IFeatureClassWrite fr = fc as IFeatureClassWrite;
IWorkspaceEdit w = (fc as IDataset).Workspace as IWorkspaceEdit;
IFeature f;
//��ѡ����������
object Missing = Type.Missing;
IPoint p = new PointClass();
w.StartEditing(true);
w.StartEditOperation();
f = fc.CreateFeature();
//����һ�������߶���
IRgbColor color = new RgbColor();
// ������ɫ����
color.Red = 255;
color.Transparency = 255;
//ISimpleLineSymbol PlyLine = new SimpleLineSymbolClass();
//PlyLine.Color = color;
//PlyLine.Style = esriSimpleLineStyle.esriSLSInsideFrame;
//PlyLine.Width = 1;
IGeometry iGeom = axMapControl1.TrackLine();
AddLine(axMapControl1, iGeom);
f.Shape = iGeom;
fr.WriteFeature(f);
w.StopEditOperation();
w.StopEditing(true);
}
}
private void axMapControlMainMap_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
int statusFlag = CommonLib.MapMouseFlag;
if (statusFlag <= 1)
{
return;
}
AxMapControlMainMap.MousePointer = esriControlsMousePointer.esriPointerCrosshair;//鼠标指针:十字状
IPoint pPoint = AxMapControlMainMap.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(e.x, e.y);
#region 11-19：空间查询(画点、线、面)
if (statusFlag >= 11 && statusFlag <= 19)
{
object symbol = null;
switch (statusFlag)
{
case 11:
IPoint point = new ESRI.ArcGIS.Geometry.Point();
point.X = e.mapX;
point.Y = e.mapY;
CommonLib.MapGeometry = point;
symbol = RenderOpt.GetSimpleMarkerSymbol("ff0000");
break;
case 12:
CommonLib.MapGeometry = AxMapControlMainMap.TrackLine();
symbol = RenderOpt.GetSimpleLineSymbol("ff0000");
break;
case 13:
CommonLib.MapGeometry = AxMapControlMainMap.TrackPolygon();
symbol = RenderOpt.GetSimpleFillSymbol("99ccff", "ff0000");
break;
case 14:
CommonLib.MapGeometry = AxMapControlMainMap.TrackRectangle();
symbol = RenderOpt.GetSimpleFillSymbol("99ccff", "ff0000");
break;
default:
CommonLib.MapGeometry = null;
break;
}
if (CommonLib.MapGeometry != null)
{
//axMapControlMainMap.Map.SelectByShape(CommonLib.MapGeometry, null, false);
//axMapControlMainMap.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
AxMapControlMainMap.DrawShape(CommonLib.MapGeometry, ref symbol);
}
}
#endregion
#region
//#region 绘制图形
//if (CommonLib.MapMouseFlag >= 1 && CommonLib.MapMouseFlag <= 4)
//{
// //初始化Color
// IRgbColor rgbColor1 = new RgbColor();
// rgbColor1.Red = 255;
// rgbColor1.Green = 255;
// rgbColor1.Blue = 0;
// //初始化Symbol
// object symbol = null;
// if (geometry.GeometryType == esriGeometryType.esriGeometryPolyline) //线
// {
// ISimpleLineSymbol simpleLineSymbol = new SimpleLineSymbol();
// simpleLineSymbol.Color = rgbColor1;
// simpleLineSymbol.Width = 5;
// symbol = simpleLineSymbol;
// }
// else
// {
// ISimpleFillSymbol simpleFillSymbol = new SimpleFillSymbol();
// simpleFillSymbol.Color = rgbColor1;
// symbol = simpleFillSymbol;
// }
// axMapControlMainMap.DrawShape(geometry, ref symbol);
//}
//else if (CommonLib.MapMouseFlag == 5)
//{
// //初始化Color
// IRgbColor rgbColor2 = new RgbColor();
// rgbColor2.Red = 255;
// rgbColor2.Green = 0;
// rgbColor2.Blue = 0;
// //初始化Symbol
// object symbol = null;
// ITextSymbol textSymbol = new TextSymbol();
// textSymbol.Color = rgbColor2;
// symbol = textSymbol;
// axMapControlMainMap.DrawText(geometry, "顶你个肺", ref symbol);
//}
//#endregion
//#region 空间选择
//if (CommonLib.MapMouseFlag >= 11 && CommonLib.MapMouseFlag <= 15)
//{
// axMapControlMainMap.Map.SelectByShape(geometry, null, false);
//}
//axMapControlMainMap.Refresh();
//#endregion
#endregion
}
