//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool RigGridBase::cellIJKNeighbor(size_t i, size_t j, size_t k, FaceType face, size_t* neighborCellIndex) const
{
size_t ni, nj, nk;
neighborIJKAtCellFace(i, j, k, face, &ni, &nj, &nk);
if (!isCellValid(ni, nj, nk))
{
return false;
}
if (neighborCellIndex)
{
*neighborCellIndex = cellIndexFromIJK(ni, nj, nk);
}
return true;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void StructGridInterface::characteristicCellSizes(double* iSize, double* jSize, double* kSize)
{
CVF_ASSERT(iSize && jSize && kSize);
if (m_characteristicCellSizeI == cvf::UNDEFINED_DOUBLE
|| m_characteristicCellSizeJ == cvf::UNDEFINED_DOUBLE
|| m_characteristicCellSizeK == cvf::UNDEFINED_DOUBLE)
{
ubyte faceConnPosI[4];
cellFaceVertexIndices(StructGridInterface::POS_I, faceConnPosI);
ubyte faceConnNegI[4];
cellFaceVertexIndices(StructGridInterface::NEG_I, faceConnNegI);
ubyte faceConnPosJ[4];
cellFaceVertexIndices(StructGridInterface::POS_J, faceConnPosJ);
ubyte faceConnNegJ[4];
cellFaceVertexIndices(StructGridInterface::NEG_J, faceConnNegJ);
ubyte faceConnPosK[4];
cellFaceVertexIndices(StructGridInterface::POS_K, faceConnPosK);
ubyte faceConnNegK[4];
cellFaceVertexIndices(StructGridInterface::NEG_K, faceConnNegK);
double iSize = 0.0;
double jSize = 0.0;
double kSize = 0.0;
cvf::Vec3d cornerVerts[8];
size_t cellCount = 0;
size_t k;
for (k = 0; k < cellCountK(); k++)
{
size_t j;
for (j = 0; j < cellCountJ(); j++)
{
size_t i;
for (i = 0; i < cellCountI(); i += 10) // NB! Evaluate every n-th cell
{
if (isCellValid(i, j, k))
{
size_t cellIndex = cellIndexFromIJK(i, j, k);
cellCornerVertices(cellIndex, cornerVerts);
iSize += (cornerVerts[faceConnPosI[0]] - cornerVerts[faceConnNegI[0]]).lengthSquared();
iSize += (cornerVerts[faceConnPosI[1]] - cornerVerts[faceConnNegI[3]]).lengthSquared();
iSize += (cornerVerts[faceConnPosI[2]] - cornerVerts[faceConnNegI[2]]).lengthSquared();
iSize += (cornerVerts[faceConnPosI[3]] - cornerVerts[faceConnNegI[1]]).lengthSquared();
jSize += (cornerVerts[faceConnPosJ[0]] - cornerVerts[faceConnNegJ[0]]).lengthSquared();
jSize += (cornerVerts[faceConnPosJ[1]] - cornerVerts[faceConnNegJ[3]]).lengthSquared();
jSize += (cornerVerts[faceConnPosJ[2]] - cornerVerts[faceConnNegJ[2]]).lengthSquared();
jSize += (cornerVerts[faceConnPosJ[3]] - cornerVerts[faceConnNegJ[1]]).lengthSquared();
kSize += (cornerVerts[faceConnPosK[0]] - cornerVerts[faceConnNegK[0]]).lengthSquared();
kSize += (cornerVerts[faceConnPosK[1]] - cornerVerts[faceConnNegK[3]]).lengthSquared();
kSize += (cornerVerts[faceConnPosK[2]] - cornerVerts[faceConnNegK[2]]).lengthSquared();
kSize += (cornerVerts[faceConnPosK[3]] - cornerVerts[faceConnNegK[1]]).lengthSquared();
cellCount++;
}
}
}
}
double divisor = cellCount * 4.0;
if (divisor > 0.0)
{
m_characteristicCellSizeI = cvf::Math::sqrt(iSize / divisor);
m_characteristicCellSizeJ = cvf::Math::sqrt(jSize / divisor);
m_characteristicCellSizeK = cvf::Math::sqrt(kSize / divisor);
}
}
*iSize = m_characteristicCellSizeI;
*jSize = m_characteristicCellSizeJ;
*kSize = m_characteristicCellSizeK;
}