115 lines
1.9 KiB
C++
115 lines
1.9 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TAcDbBlockTable 类
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// = Version : ver2.0
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// = Author : wlw
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// = CreateDate : 2002-09-09
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// = Description: TAcDbBlockTable 定义
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#include "StdAfx.h"
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#include "TAcDbBlockTable.h"
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TAcDbBlockTable::TAcDbBlockTable(const TCHAR *blkName)
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: TAcDbSymbolTable(_T("BLOCK"), blkName)
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{
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if (TAcDbSymbolTable::operator !())
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{
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return;
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}
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GetData(10, base);
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GetData(-2, ent);
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}
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TAcDbBlockTable::~TAcDbBlockTable()
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{
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}
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int TAcDbBlockTable::EntNext()
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{
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ads_name e;
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ent>e;
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ent.FreeGroups();
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if (ads_entnext(e, ent) != RTNORM)
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{
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ent.name[0] = ent.name[1] = 0L;
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return RTERROR;
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}
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return RTNORM;
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}
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int TAcDbBlockTable::GetExtend(ads_point low, ads_point up, ads_matrix tranMat)
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{
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if (!(*this))
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{
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return RTERROR;
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}
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TADSGePoint3d lowPt, upPt;
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int rc = ent.GetExtend(lowPt, upPt, tranMat);
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if (rc == RTERROR)
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{
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return RTERROR;
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}
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int findExtend = rc == RTNORM ? 1 : 0;
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TEntitySet subEnt = ent;
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while(1)
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{
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ads_name entNext;
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if (ads_entnext(subEnt, entNext) != RTNORM)
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{
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break;
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}
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subEnt = entNext;
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subEnt.FreeGroups();
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TCString eType;
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subEnt.GetData(0, eType);
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if (subEnt.Is(_T("ENDBLK")))
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{
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break;
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}
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TADSGePoint3d pt1, pt2;
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rc = subEnt.GetExtend(pt1, pt2, tranMat);
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if (rc == RTERROR)
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{
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return RTERROR;
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}
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else if (rc == RTNONE)
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{
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continue;
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}
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if (!findExtend)
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{
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lowPt = pt1;
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upPt = pt2;
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findExtend = 1;
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}
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else
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{
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lowPt = Min(lowPt, pt1);
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upPt = Max(upPt, pt2);
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}
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}
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if (findExtend)
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{
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lowPt > low;
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upPt > up;
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return RTNORM;
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}
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return RTNONE;
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}
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