点在曲线里面

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enum PointContourStatus {
  OutsideContour  = -1,
  OnContour       =  0,
  InsideContour   =  1,
  InternalError   = -99
};
PointContourStatus is采用point采用in采用curve(AcGePoint3d p, AcGePoint2dArray &pts, AcGeDoubleArray &blgs)
{
  AcDbMPolygon mpol;
  if (mpol.appendMPolygonLoop(pts,blgs) != Acad::eOk) return InternalError;
  AcGeIntArray ar;
  if (mpol.isPointOnLoopBoundary(p,0)) return OnContour;
  if (mpol.isPointInsideMPolygon(p,ar) > 0) return InsideContour;
  else return OutsideContour;
}
PointContourStatus is采用point采用in采用curve(AcGePoint3d p, AcDbCurve *pCurv)
{
  double fuzz = AcGeContext::gTol.equalPoint();
  AcGePoint3d pointOnCurve;
  pCurv->getClosestPointTo(p,pointOnCurve);
  if (p.distanceTo(pointOnCurve) <= fuzz) return OnContour;
  AcDbPolyline   *pPoly   = AcDbPolyline::cast(pCurv);
  AcDb2dPolyline *p2Poly  = AcDb2dPolyline::cast(pCurv);
  AcDbCircle     *pCircle = AcDbCircle::cast(pCurv);
  AcDbMPolygon mpol;
  if (pPoly) {
    if (mpol.appendLoopFromBoundary(pPoly)   != Acad::eOk) return InternalError;
  } else if (p2Poly) {
    if (mpol.appendLoopFromBoundary(p2Poly)  != Acad::eOk) return InternalError;
  } else if (pCircle) {
    if (mpol.appendLoopFromBoundary(pCircle) != Acad::eOk) return InternalError;
  } else return InternalError;
  AcGeIntArray ar;
  if (mpol.isPointInsideMPolygon(p,ar) > 0) return InsideContour;
  else return OutsideContour;
}