在一定的精度范围内查找一个点处的实体
static bool findEntAtPoint(IN McGePoint3d pt, IN struct resbuf* pFilter, OUT McDbObjectIdArray& aryId, IN double dTol = -1.0, IN MxSSGetSubEntity* pSubEntitys = NULL);
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参数 |
说明 |
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IN McGePoint3d pt |
搜索点,WCS坐标系统 |
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IN struct resbuf* pFilter |
过滤条件 |
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OUT McDbObjectIdArray& aryId |
返回找到实体id数组 |
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IN double dTol = -1.0 |
搜索范围 |
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IN MxSSGetSubEntity* pSubEntitys = NULL |
查到的块里面的实体 |
找到实体后，返回true
例如:该函数源码为:
bool MrxDbgUtils::findEntAtPoint(IN McGePoint3d pt,IN struct resbuf* pFilter, OUT McDbObjectIdArray& aryId,IN double dTol) { aryId.setLogicalLength(0); pt = MrxDbgUtils::wcsToUcs(pt); McGePoint3d pt1 = pt + dTol * (McGeVector3d::kXAxis + McGeVector3d::kYAxis); McGePoint3d pt2 = pt - dTol * (McGeVector3d::kXAxis + McGeVector3d::kYAxis); mds_name ss; int result = Mx::mcedSSGet(_T("_C"), asDblArray(pt1), asDblArray(pt2), pFilter, ss); if(result != RTNORM) { return false; } long sslen; if (Mx::mcedSSLength(ss, &sslen) != RTNORM) { Mx::mcedSSFree(ss); return false; } for(int i = 0; i < sslen;i++) { mds_name ent; Mx::mcedSSName(ss, i, ent); McDbObjectId id; Mx::mcdbGetObjectId(id,ent); aryId.append(id); } Mx::mcedSSFree(ss); return !aryId.isEmpty(); }
