170 lines
4.4 KiB
C++
170 lines
4.4 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, SH Software Co. Ltd.
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// = FileName : XBlockGeomInfo.cpp
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// = Version : ver2.0
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// = Author : zjq
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// = CreateDate : 2002-09-09
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// = Description: 图块几何信息类的定义
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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 "XBlockGeomInfo.h"
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#include "XGlobalFunc.h"
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using namespace XExport;
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XBlockGeomInfo::XBlockGeomInfo()
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:m_nRotation(0.0), m_nSizeX(0.0), m_nSizeY(0.0), m_nSizeZ(0.0)
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{
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}
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XBlockGeomInfo::~XBlockGeomInfo()
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{
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}
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double XBlockGeomInfo::GetRotation() const
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{
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return m_nRotation;
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}
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XPoint XBlockGeomInfo::GetCenter() const
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{
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return m_ptCen;
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}
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double XBlockGeomInfo::GetSizeX() const
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{
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return m_nSizeX;
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}
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double XBlockGeomInfo::GetSizeY() const
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{
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return m_nSizeY;
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}
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double XBlockGeomInfo::GetSizeZ() const
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{
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return m_nSizeZ;
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}
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void XBlockGeomInfo::SetFromInsert(const AcDbBlockReference *pBlk)
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{
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if(pBlk)
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{
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XPoint xp;
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GetBlockRefSizeInfo(pBlk, xp, &m_nRotation, m_ptCen, &m_nSizeX, &m_nSizeY, &m_nSizeZ);
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m_ptCen.z -= m_nSizeZ / 2.0;
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}
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}
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void XBlockGeomInfo::UpdateInsert(AcDbBlockReference *pInsert) const
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{
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XPoint ptNewBase;
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double nNewRot;
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AcGeScale3d scale;
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if(CalInsertParameters(pInsert, ptNewBase, &nNewRot, &scale[0], &scale[1], &scale[2]) != Acad::eOk)
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{
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return;
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}
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pInsert->setPosition(ptNewBase);
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pInsert->setRotation(nNewRot);
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pInsert->setScaleFactors(scale);
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}
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// 用包络参数换算图块的插入参数
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// ptNewBase--新的插入点; nRotation--新的转角; nSx,nSy,nSZ--新的比例
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Acad::ErrorStatus
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XBlockGeomInfo::CalInsertParameters(const AcDbBlockReference *pBlkSrc, XPoint &ptNewBase, double *nRotation,
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double *nSx, double *nSy, double *nSz) const
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{
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ads_matrix matRotOld, matMove, matScale, matRotNew, matTransform;
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double nSizeX, nSizeY, nSizeZ, nRot;
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XPoint ptBase, ptCen, ptNewCen;
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VERIFY(GetBlockRefSizeInfo(pBlkSrc, ptBase, &nRot, ptCen, &nSizeX, &nSizeY, &nSizeZ) == RTNORM);
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ptNewCen = m_ptCen;
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ptNewCen.z += m_nSizeZ / 2.0;
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// 绕旧中心旋转-nRotOld -> 绕旧中心Scale -> 平移到新中心 -> 旋转 RotNew
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// or
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// 绕旧中心旋转-nRotOld -> 绕旧中心Scale -> 旋转 RotNew -> 平移到新中心 (Current Method)
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AcGeScale3d bScale = pBlkSrc->scaleFactors();
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double sx = 1.0, sy = 1.0, sz = 1.0;
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if(fabs(nSizeX) > 1.0E-6)
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{
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bScale[0] *= sx = m_nSizeX / nSizeX;
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}
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if(fabs(nSizeY) > 1.0E-6)
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{
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bScale[1] *= sy = m_nSizeY / nSizeY;
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}
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if(fabs(nSizeZ) > 1.0E-6)
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{
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bScale[2] *= sz = m_nSizeZ / nSizeZ;
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}
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ptCen.GetRotationMatrix(-nRot, matRotOld);
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ptCen.GetScaleMatrix(sx, sy, sz, matScale);
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ptCen.GetRotationMatrix(m_nRotation, matRotNew);
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ptCen.GetMoveMatrix(ptNewCen, matMove);
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MatrixMultiply(matTransform, matMove, matRotNew, matScale, matRotOld, NULL);
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ptNewBase = ptBase.TransformAs(matTransform); //换算新的基点位置
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*nRotation = m_nRotation;
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*nSx = bScale[0];
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*nSy = bScale[1];
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*nSz = bScale[2];
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return Acad::eOk;
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}
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// 取得四个角点
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XPoint XBlockGeomInfo::GetLowLeft() const
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{
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double nAng = atan(m_nSizeY / m_nSizeX);
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double nLen = sqrt(m_nSizeY * m_nSizeY + m_nSizeX * m_nSizeX);
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XPoint ptLowLeft;
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ads_polar(m_ptCen, m_nRotation + PI + nAng, nLen / 2.0, ptLowLeft);
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return ptLowLeft;
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}
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XPoint XBlockGeomInfo::GetLowRight() const
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{
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double nAng = atan(m_nSizeY / m_nSizeX);
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double nLen = sqrt(m_nSizeY * m_nSizeY + m_nSizeX * m_nSizeX);
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XPoint ptLowRight;
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ads_polar(m_ptCen, m_nRotation - nAng, nLen / 2.0, ptLowRight);
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return ptLowRight;
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}
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XPoint XBlockGeomInfo::GetUpRight() const
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{
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double nAng = atan(m_nSizeY / m_nSizeX);
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double nLen = sqrt(m_nSizeY * m_nSizeY + m_nSizeX * m_nSizeX);
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XPoint ptUpRight;
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ads_polar(m_ptCen, m_nRotation + nAng, nLen / 2.0, ptUpRight);
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return ptUpRight;
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}
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XPoint XBlockGeomInfo::GetUpLeft() const
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{
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double nAng = atan(m_nSizeY / m_nSizeX);
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double nLen = sqrt(m_nSizeY * m_nSizeY + m_nSizeX * m_nSizeX);
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XPoint ptUpLeft;
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ads_polar(m_ptCen, m_nRotation + PI - nAng, nLen / 2.0, ptUpLeft);
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return ptUpLeft;
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}
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void XBlockGeomInfo::GetPolyline(AcDbPolyline &pline) const
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{
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pline.addVertexAt(0, GetLowLeft().AsAcGePoint2d());
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pline.addVertexAt(1, GetLowRight().AsAcGePoint2d());
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pline.addVertexAt(2, GetUpRight().AsAcGePoint2d());
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pline.addVertexAt(3, GetUpLeft().AsAcGePoint2d());
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pline.setClosed(Adesk::kTrue);
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}
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