AcDbIntArray & geomIds) const #else Acad::ErrorStatus PDEcone::getOsnapPoints( AcDb::OsnapMode osnapMode, int gsSelectionMark, const AcGePoint3d& pickPoint, const AcGePoint3d& lastPoint, const AcGeMatrix3d& viewXform, AcGePoint3dArray& snapPoints, AcDbIntArray& geomIds) const #endif { assertReadEnabled(); if(!hasSnap()) return Acad::eOk; int gsSelectionMark_int = (int)gsSelectionMark; if(gsSelectionMark_int == 0) return Acad::eOk; AcGePoint3dArray pArray; AcGeIntArray stdIdx; int actPrecision; getVertices(m_dDividPrecision, pArray, stdIdx, actPrecision); int actPrecision__1 = actPrecision + 1; int stdIdxLen = stdIdx.length(); int stdIdxLen_1 = stdIdxLen - 1; int stdIdxLen____2 = stdIdxLen / 2; AcGeVector3d viewDir(viewXform(Z, 0), viewXform(Z, 1), viewXform(Z, 2)); AcGeVector3d vect = getFaceVect(); int i; switch(osnapMode) { case AcDb::kOsModeEnd: snapPoints.append(m_ptStart); snapPoints.append(m_ptEnd); for(i = 0; i < stdIdxLen_1; ++i) { snapPoints.append(pArray[stdIdx[i]]); snapPoints.append(pArray[stdIdx[i] + actPrecision__1]); } break; case AcDb::kOsModeMid: snapPoints.append(m_ptStart + (m_ptEnd - m_ptStart) / 2.0); for(i = 0; i < stdIdxLen_1; ++i) snapPoints.append(pArray[stdIdx[i]] + (pArray[stdIdx[i] + actPrecision__1] - pArray[stdIdx[i]]) / 2.0); break; case AcDb::kOsModeCen: if(gsSelectionMark_int == 1) snapPoints.append(m_ptStart); else if(gsSelectionMark_int == 2) snapPoints.append(m_ptEnd); else snapPoints.append(m_ptStart + (m_ptEnd - m_ptStart) / 2.0); break; case AcDb::kOsModeQuad: for(i = 0; i < stdIdxLen____2; i++) { snapPoints.append(pArray[stdIdx[i * 2]]); snapPoints.append(pArray[stdIdx[i * 2] + actPrecision__1]); } break; case AcDb::kOsModeNode: break; case AcDb::kOsModeIns: snapPoints.append(m_ptStart); break; case AcDb::kOsModePerp: { AcGeLine3d line; AcGeVector3d vec; AcGePoint3d pt; if(gsSelectionMark_int == 1) { AcGeCircArc3d cir(m_ptStart, vect, m_dDiameter1 / 2.0); pt = cir.closestPointTo(lastPoint); snapPoints.append(pt); } else if(gsSelectionMark_int == 2) { AcGeCircArc3d cir(m_ptEnd, vect, m_dDiameter2 / 2.0); pt = cir.closestPointTo(lastPoint); snapPoints.append(pt); } //重新定义对象垂直正交点的捕捉方式,同时满足实体模型和线框模型的捕捉 //modified by szw 2009.11.18 : begin else if(gsSelectionMark_int == 3) { for(int i = 0; i < stdIdxLen - 1; ++i) { vec = pArray[stdIdx[i]] - pArray[stdIdx[i] + actPrecision__1]; line.set(pArray[stdIdx[i]], vec); pt = line.closestPointTo(lastPoint); snapPoints.append(pt); } } //modified by szw 2009.11.18 : end } break; case AcDb::kOsModeTan: break; case AcDb::kOsModeNear: { AcGePoint3d pt; AcGeCircArc3d cir; //下底面 if(gsSelectionMark_int == 1) { cir.set(m_ptStart, vect, m_dDiameter1 / 2.0); pt = cir.projClosestPointTo(pickPoint, viewDir); snapPoints.append(pt); } //上底面 else if(gsSelectionMark_int == 2) { cir.set(m_ptEnd, vect, m_dDiameter2 / 2.0); pt = cir.projClosestPointTo(pickPoint, viewDir); snapPoints.append(pt); } //棱边 //重新定义对象垂直正交点的捕捉方式,同时满足实体模型和线框模型的捕捉 //modified by szw 2009.11.18 : begin else if(gsSelectionMark_int == 3) { AcGeLineSeg3d lnsg; AcGePoint3d p1,p2; for(int i = 0; i < stdIdxLen - 1; ++i) { p1 = pArray[stdIdx[i]]; p2 = pArray[stdIdx[i] + actPrecision__1]; lnsg.set(p1, p2); // lnsg.set(pArray[stdIdx[i]], pArray[stdIdx[i] + actPrecision__1]); pt = lnsg.projClosestPointTo(pickPoint, viewDir); snapPoints.append(pt); } } //modified by szw 2009.11.18 : end } break; default: break; } return Acad::eOk; }