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| | CurvatureStencil (const GridType &grid) |
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| | CurvatureStencil (const GridType &grid, double dx) |
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| ValueType | meanCurvature () const |
| | Return the mean curvature at the previously buffered location.
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| ValueType | gaussianCurvature () const |
| | Return the Gaussian curvature at the previously buffered location.
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| void | curvatures (ValueType &mean, ValueType &gauss) const |
| | Return both the mean and the Gaussian curvature at the previously buffered location.
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| ValueType | meanCurvatureNormGrad () const |
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| ValueType | gaussianCurvatureNormGrad () const |
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| void | curvaturesNormGrad (ValueType &mean, ValueType &gauss) const |
| | Return both the mean and the Gaussian curvature at the previously buffered location.
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| void | principalCurvatures (ValueType &min, ValueType &max) const |
| | Computes the minimum and maximum principal curvature at the previously buffered location.
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| ValueType | laplacian () const |
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| Vec3< ValueType > | gradient () const |
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| template<int i, int j, int k> |
| unsigned int | pos () const |
| | Return linear offset for the specified stencil point relative to its center.
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| void | moveTo (const Coord &ijk) |
| | Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors.
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| void | moveTo (const Coord &ijk, const ValueType ¢erValue) |
| | Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors. The method also takes a value of the center element of the stencil, assuming it is already known.
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| void | moveTo (const IterType &iter) |
| | Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.
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| void | moveTo (const Vec3< RealType > &xyz) |
| | Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.
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| const ValueType & | getValue (unsigned int pos=0) const |
| | Return the value from the stencil buffer with linear offset pos.
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| const ValueType & | getValue () const |
| | Return the value at the specified location relative to the center of the stencil.
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| void | setValue (const ValueType &value) |
| | Set the value at the specified location relative to the center of the stencil.
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| ValueType | mean () const |
| | Return the mean value of the current stencil.
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| ValueType | min () const |
| | Return the smallest value in the stencil buffer.
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| ValueType | max () const |
| | Return the largest value in the stencil buffer.
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| const Coord & | getCenterCoord () const |
| | Return the coordinates of the center point of the stencil.
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| const ValueType & | getCenterValue () const |
| | Return the value at the center of the stencil.
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| bool | intersects (const ValueType &isoValue=ValueType(0)) const |
| | Return true if the center of the stencil intersects the iso-contour specified by the isoValue.
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| Mask | intersectionMask (ValueType isoValue=ValueType(0)) const |
| | Return true a bit-mask where the 6 lower bits indicates if the center of the stencil intersects the iso-contour specified by the isoValue.
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| const GridType & | grid () const |
| | Return a const reference to the grid from which this stencil was constructed.
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| const AccessorType & | accessor () const |
| | Return a const reference to the ValueAccessor associated with this Stencil.
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Return true a bit-mask where the 6 lower bits indicates if the center of the stencil intersects the iso-contour specified by the isoValue.
- Note
- There are 2^6 = 64 different possible cases, including no intersections!
The ordering of bit mask is ( -x, +x, -y, +y, -z, +z ), so to check if there is an intersection in -y use (mask & (1u<<2)) where mask is ther return value from this function. To check if there are any intersections use mask!=0u, and for no intersections use mask==0u. To count the number of intersections use __builtin_popcount(mask).
template<typename GridT , typename RealT = typename GridT::ValueType>
template<int i, int j, int k>
| unsigned int pos |
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Return linear offset for the specified stencil point relative to its center.