[每日一码] 如何封闭SPLINE

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1. void setClosed(AcDbSpline *pSpline)
2. {
3.     int          degree;
4.     Adesk::Boolean    rational;
5.     Adesk::Boolean    closed;
6.     Adesk::Boolean    periodic;
7.     AcGePoint3dArray  controlPoints;
8.     AcGeDoubleArray    knots;
9.     AcGeDoubleArray    weights;
10.     double        controlPtTol;
11.     double        knotTol;
13.   // get data from the spline
14.     pSpline->getNurbsData(degree, rational, closed, periodic,
15.                  controlPoints, knots, weights,
16.                  controlPtTol, knotTol);
18.   if(closed == Adesk::kTrue)
19.         return;
21.   // set as closed
22.   closed = Adesk::kTrue;
24.   // apply data back
25.     pSpline->setNurbsData(degree, rational, closed, periodic,
26.                  controlPoints, knots, weights,
27.                  controlPtTol, knotTol);
28. }

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