//几何图形坐标转换
private void GeometryCoordConvert(ref IGeometry pConvertGeometry, double A1, double B1, double C1, double A2, double B2, double C2, double A3, double C3)
{
object a = System.Reflection.Missing.Value;
object b = System.Reflection.Missing.Value;
bool isRing = false;
if (pConvertGeometry.GeometryType != esriGeometryType.esriGeometryPoint)//如果为线要素或面要素
{
IArray pArrayPoint = new ArrayClass();
IArray pGeometryArray = new ArrayClass();
IGeometryCollection pGeometryCollection = pConvertGeometry as IGeometryCollection;
for (int i = 0; i < pGeometryCollection.GeometryCount; i++)
{
IGeometry pGeometry = pGeometryCollection.get_Geometry(i);
if (pGeometry.GeometryType != esriGeometryType.esriGeometryPoint)//
{
#region
if (pGeometry.GeometryType == esriGeometryType.esriGeometryRing)
{
isRing = true;
}
if (pGeometry.GeometryType == esriGeometryType.esriGeometryPolygon)
{
pGeometry = CommonFunction.GetPolygonBoundary((IPolygon)pGeometry);
}
ISegmentCollection pSegmentCol = (ISegmentCollection)pGeometry;
ISegmentCollection pNewSegmentCol = new PolylineClass();
for (int k = 0; k < pSegmentCol.SegmentCount; k++)//遍历几何形体的每个节（片断）
{
//该节为直线段
if (pSegmentCol.get_Segment(k).GeometryType == esriGeometryType.esriGeometryLine)
{
IPointCollection pPointCol1 = new MultipointClass();
ILine pLine = (ILine)pSegmentCol.get_Segment(k);
IPoint pFromPoint = pLine.FromPoint;
pPointCol1.AddPoint((IPoint)pFromPoint, ref a, ref b);
IPoint pToPoint = pLine.ToPoint;
pPointCol1.AddPoint((IPoint)pToPoint, ref a, ref b);
PointCollCoordConvert(A1, B1, C1, A2, B2, C2, A3, C3, ref pPointCol1);//对点集做镜像
//修改线段的端点坐标
pLine.FromPoint = pPointCol1.get_Point(0);
pLine.ToPoint = pPointCol1.get_Point(1);
pNewSegmentCol.AddSegment((ISegment)pLine, ref a, ref b);
}
//该节为圆弧
else if (pSegmentCol.get_Segment(k).GeometryType == esriGeometryType.esriGeometryCircularArc)
{
IPointCollection pPointCol2 = new MultipointClass();
ICircularArc pCircularArc = (ICircularArc)pSegmentCol.get_Segment(k);
try
{
IPoint pCenterPoint = pCircularArc.CenterPoint;
pPointCol2.AddPoint((IPoint)pCenterPoint, ref a, ref b);
IPoint pFromPoint = pCircularArc.FromPoint;
pPointCol2.AddPoint((IPoint)pFromPoint, ref a, ref b);
IPoint pToPoint = pCircularArc.ToPoint;
pPointCol2.AddPoint((IPoint)pToPoint, ref a, ref b);
PointCollCoordConvert(A1, B1, C1, A2, B2, C2, A3, C3, ref pPointCol2);//对点集做镜像
//构造新的圆弧
ICircularArc pArc = new CircularArcClass();
pArc.PutCoords(pPointCol2.get_Point(0), pPointCol2.get_Point(1), pPointCol2.get_Point(2),
(pCircularArc.IsCounterClockwise ? esriArcOrientation.esriArcCounterClockwise : esriArcOrientation.esriArcClockwise));
pNewSegmentCol.AddSegment((ISegment)pArc, ref a, ref b);
}
catch { }
}
//该节为贝塞尔曲线
else if (pSegmentCol.get_Segment(k).GeometryType == esriGeometryType.esriGeometryBezier3Curve)
{
IPointCollection pPointCol3 = new MultipointClass();
IBezierCurve pBezierCurve = (IBezierCurve)pSegmentCol.get_Segment(k);
//记录该节贝塞尔曲线的４个控制点
IPoint pFromPoint = new PointClass();
pBezierCurve.QueryCoord(0, pFromPoint);
pPointCol3.AddPoint(pFromPoint, ref a, ref b);
IPoint pFromTangentPoint = new PointClass();
pBezierCurve.QueryCoord(1, pFromTangentPoint);
pPointCol3.AddPoint(pFromTangentPoint, ref a, ref b);
IPoint pToTangentPoint = new PointClass();
pBezierCurve.QueryCoord(2, pToTangentPoint);
pPointCol3.AddPoint(pToTangentPoint, ref a, ref b);
IPoint pToPoint = new PointClass();
pBezierCurve.QueryCoord(3, pToPoint);
pPointCol3.AddPoint(pToPoint, ref a, ref b);
PointCollCoordConvert(A1, B1, C1, A2, B2, C2, A3, C3, ref pPointCol3);//对点集做镜像
//修改该节贝塞尔曲线的４个控制点
pBezierCurve.PutCoord(0, pPointCol3.get_Point(0));
pBezierCurve.PutCoord(1, pPointCol3.get_Point(1));
pBezierCurve.PutCoord(2, pPointCol3.get_Point(2));
pBezierCurve.PutCoord(3, pPointCol3.get_Point(3));
pNewSegmentCol.AddSegment((ISegment)pBezierCurve, ref a, ref b);
}
}//end for 遍历几何形体的每个节（片断）
CommonFunction.GeometryToArray(pNewSegmentCol as IGeometry, pArrayPoint);
IPolycurve2 pPolycurve2 = CommonFunction.BuildPolyLineFromSegmentCollection(pNewSegmentCol);
pGeometry = (IGeometry)pPolycurve2;
#endregion
}
if (pConvertGeometry.GeometryType == esriGeometryType.esriGeometryPolygon)//由线构成面
{
pGeometry = CommonFunction.PolylineToPolygon(pGeometry as IPolyline);
}
pGeometryArray.Add(pGeometry);
}
if (pGeometryArray.Count > 1)
{
pConvertGeometry = pGeometryArray.get_Element(0) as IGeometry;
if (isRing == true)
{
for (int i = 1; i < pGeometryArray.Count; i++)
{
pConvertGeometry = CommonFunction.DiffenceGeometry(pConvertGeometry, pGeometryArray.get_Element(i) as IGeometry);
}
}
else
{
for (int i = 1; i < pGeometryArray.Count; i++)
{
pConvertGeometry = CommonFunction.UnionGeometry(pConvertGeometry, pGeometryArray.get_Element(i) as IGeometry);
}
}
}
else
{
pConvertGeometry = pGeometryArray.get_Element(0) as IGeometry;
}
CommonFunction.AddZMValueForGeometry(ref pConvertGeometry, pArrayPoint);
}
else
{
PointCoordConvert(ref pConvertGeometry, A1, B1, C1, A2, B2, C2, A3, C3);
}
}