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以下是一段求交点的代码：
int ret;
AcDbObjectId entId; //
//AcDbObjectIdArray curveIds_h; // 混凝土边界曲线ID 定义为类变量
AcDbCurve *pCurve=NULL; //混凝土边界曲线指针
AcDbLine *pLine =NULL; //零应力切割线指针
AcDbEntity *pEnt1=NULL;
AcGePoint3dArray pointarray; //交点数组
lineId_0=CreateLine();
acdbOpenObject(pLine, lineId_0, AcDb::kForRead ); //零应力线ID
//acutPrintf(_T("\nx=%f"),length);
acutPrintf("\n选择集对象个数为%d",curveIds_h.length());
for (int i = 0; i isKindOf(AcDbCurve::desc())) {
pCurve = AcDbCurve::cast(pEnt1);
pLine->intersectWith(pCurve,AcDb::kExtendThis,pointarray,0,0);
ret= pointarray.length();
acutPrintf(_T("\nx=%d"),ret);
pCurve->close();
pEnt1->close();
pLine->close();
}
运行总是出问题推出，不知道怎么回事，哪位知道请指点一下!
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置顶卡
