public Form1()
{
InitializeComponent();
axTOCControl1.SetBuddyControl(axMapControl1);
tool = Tools.Pointer;
toolbtn = new ToolBtn(axMapControl1);
}
private void axMapControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e)
{
switch (tool)
{
case Tools.DrawPolygon:
//缓冲区代码
this.createDrawPolygon();
break;
case Tools.PointBuffer:
//缓冲区代码
this.createPointBuffer();
break;
case Tools.ZoomIn:
toolbtn.zoomIn();
break;
case Tools.ZoomOut:
toolbtn.zoomOut();
break;
case Tools.Pan:
toolbtn.pan();
break;
case Tools.Distance:
IGeometry pline = axMapControl1.TrackLine();
IPointCollection pc = pline as IPointCollection;
if (pc != null)
{
double totalLen = 0.0;
int iCount = pc.PointCount;
for (int j = 0; j < iCount - 1; j++)
{
IPoint pt1 = pc.get_Point(j);
IPoint pt2 = pc.get_Point(j + 1);
totalLen += ToolBtn.Distance(pt1.X, pt1.Y, pt2.X, pt2.Y);
}
MessageBox.Show(String.Format("{0}米", totalLen));
}
break;
case Tools.Area:
IGeometry pPoly = axMapControl1.TrackPolygon();
ITopologicalOperator pTopo = pPoly as ITopologicalOperator;
pTopo.Simplify();
ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironment();
ISpatialReference earthref = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
pPoly.SpatialReference = earthref;
IPointCollection pPc = pPoly as IPointCollection;
IPoint pt = pPc.get_Point(0);
int dh = (int)((pt.X + 6.0) / 6);
int wikiid = 21413 + (dh - 13);
pPoly.Project(spatialReferenceFactory.CreateProjectedCoordinateSystem(wikiid));
IArea pArea = pPoly as IArea;
MessageBox.Show(string.Format("{0}平方米", pArea.Area));
break;
case Tools.Overlap:
break;
case Tools.DrawPoint:
IElement pEle;
IPoint p = new ESRI.ArcGIS.Geometry.Point();
p.X = e.mapX;
p.Y = e.mapY;
IGraphicsContainer pGra = axMapControl1.Map as IGraphicsContainer;
IMarkerElement pMakEle = new MarkerElement() as IMarkerElement;
pEle = pMakEle as IElement;
IMarkerSymbol pMakSym = new SimpleMarkerSymbol();
RgbColor pRgbColor = new RgbColor();
pRgbColor.Red = 0;
pRgbColor.Green = 0;
pRgbColor.Blue = 255;
pMakSym.Color = pRgbColor;
pMakEle.Symbol = pMakSym;
pEle.Geometry = p;
pGra.AddElement(pEle, 0);
axMapControl1.Refresh(esriViewDrawPhase.esriViewGraphics, null, null);
break;
default:
break;
}
}
