/// <summary>
/// Returns a polygon with a centroid at the given x and y exactly 1 acre in size
/// </summary>
/// <param name="X"></param>
/// <param name="Y"></param>
/// <returns></returns>
private IPolygon CreateHomesitePolygon(int X, int Y)
{
try
{
ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = (_application.Document as IMxDocument).ActiveView.ScreenDisplay;
ESRI.ArcGIS.Geometry.IPoint point = screenDisplay.DisplayTransformation.ToMapPoint(X, Y);
ITopologicalOperator topologicalOperator = point as ITopologicalOperator;
IGeometry geometry = topologicalOperator.Buffer(104.3551628); // radius of circle --> envelope is 1 square acre :)
IPolygon polygon = geometry as IPolygon;
// Might be able to skip this
ISegmentCollection segmentcollection = polygon as ISegmentCollection;
segmentcollection.SetRectangle(polygon.Envelope);
return(segmentcollection as IPolygon);
} catch (Exception ex)
{
RS_Tools.Utilities.Utilities_MessageBox.ErrorBox(ex.Message, MB_TITLE);
}
return(null);
}
protected override void OnMouseDown(ESRI.ArcGIS.Desktop.AddIns.Tool.MouseEventArgs arg)
{
int intx = arg.X;
int inty = arg.Y;
IPoint pPoints = new PointClass();
pPoints.PutCoords(intx, inty);
IActiveView activeView = ArcMap.Document.ActiveView;
pPoints = activeView.ScreenDisplay.DisplayTransformation.ToMapPoint(-100, 40);//x,y为屏幕坐标
ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = activeView.ScreenDisplay;
ESRI.ArcGIS.Display.IDisplayTransformation displayTransformation = screenDisplay.DisplayTransformation;
pPoints = displayTransformation.ToMapPoint(-120, 40);
IMxDocument doc = ArcMap.Document;
IMap map = doc.FocusMap;
pPoints = doc.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(-100, 40);
AlterForm frm = null;
if (frm == null || frm.IsDisposed)
{
frm = new AlterForm(intx, inty);
}
frm.Show();
frm.TopMost = true;
frm.Width = 400;
frm.Height = 300;
frm.Left = 500;
}
/// <summary>
/// Flashes the given feature on the hook's active view
/// </summary>
/// <param name="msPause">Pause between flashes</param>
/// <param name="times">Number of times to flash</param>
/// <param name="feature">Feature to flash</param>
public void FlashFeature(ESRI.ArcGIS.Geodatabase.IFeature feature, int times, int msPause)
{
if (null == feature)
{
throw new ArgumentNullException("feature");
}
if (null != this.ActiveView)
{
ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = this.ActiveView.ScreenDisplay;
if (null != screenDisplay)
{
ESRI.ArcGIS.Carto.IIdentifyObj obj = new FeatureIdentifyObjectClass();
((ESRI.ArcGIS.Carto.IFeatureIdentifyObj)obj).Feature = feature;
for (int i = 0; i < times; i++)
{
obj.Flash(screenDisplay);
System.Threading.Thread.Sleep(msPause);
}
}
}
}
