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;
}
