public override void OnMouseDown(int button, int shift, int x, int y, double mapX, double mapY)
{
// TODO: 添加 DrawTraceLine.OnMouseDown 实现
base.OnMouseDown(button, shift, x, y, mapX, mapY);
m_pStatusBarService.SetStateMessage("1.选择要素;2.右键/ENTER/SPACEBAR,结束选择;3.左键,确定跟踪的起点;4.左键,结束跟踪。(ESC: 取消/DEL:删除)");
m_CurrentLayer = ((IDFApplication)this.Hook).CurrentEditLayer;
m_bIsSelect = true;
if (button != 2 && bBegineMove && button1 == 2) //结束跟踪，复位
{
object a = esriConstructOffsetEnum.esriConstructOffsetSimple;
object b = System.Reflection.Missing.Value;
m_pTraceLine = m_pCursor.CurrentTrace;
m_pOffsetTraceLine.ConstructOffset(m_pTraceLine, m_dOffsetDistance, ref a, ref b);
IGeometry pGeometry = (IGeometry)m_pOffsetTraceLine;
if (((IFeatureLayer)m_App.CurrentEditLayer).FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline)
{
pGeometry = (IGeometry)CommonFunction.GetPolygonBoundary((IPolygon)pGeometry);
}
CommonFunction.CreateFeature(m_App.Workbench, pGeometry, m_FocusMap, m_CurrentLayer);
Reset(); //复位
return;
}
if (button != 2 && bBegineMove && button1 == 1) //开始跟踪
{
//'Start a trace if one doesn't exist
m_pCursor = m_pGraph.GetCursor(m_pPoint);
m_pTraceLine = m_pCursor.CurrentTrace;
object a = esriConstructOffsetEnum.esriConstructOffsetSimple;
object b = System.Reflection.Missing.Value;
m_pOffsetTraceLine.ConstructOffset(m_pTraceLine, m_dOffsetDistance, ref a, ref b);
RefreshTraceline();
m_lMoveCounter = 0;
button1 = 2;
return;
}
if (button == 2 && !bBegineMove) //右键单击,停止选择
{
if (m_OriginFeatureArray.Count == 0)
{
return;
}
CreateGraph();
bBegineMove = true;
return;
}
}
private ICurve ConstructOffset(IPolyline inPolyline, double distanceFromCurve, bool isRightSide, double elevation)
{
if (inPolyline == null || inPolyline.IsEmpty)
{
return(null);
}
object Missing = Type.Missing;
IPolyline pPoly = new ESRI.ArcGIS.Geometry.Polyline() as IPolyline;
IConstructCurve constructCurve = (IConstructCurve)pPoly;
if (!isRightSide)
{
distanceFromCurve = -distanceFromCurve;
}
constructCurve.ConstructOffset(inPolyline, distanceFromCurve, ref Missing, ref Missing);
IRgbColor rgbColor = GetColor(0, 0, 0);
AddTempolralPathToMap(m_MapMapControl, constructCurve as IGeometry, rgbColor);
AddTempolralPathToGlobe(constructCurve as IGeometry, elevation);
return(constructCurve as ICurve);
}
