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OpenVDB 12.1.0
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This is a special 19-point stencil that supports optimal fifth-order WENO upwinding, second-order central differencing, Laplacian, and zero-crossing test. More...
#include <openvdb/math/Stencils.h>
Public Types | |
| typedef GridT | GridType |
| typedef GridT::TreeType | TreeType |
| typedef GridType::ValueType | ValueType |
| typedef tree::ValueAccessor< const TreeType, IsSafe > | AccessorType |
| typedef std::vector< ValueType > | BufferType |
Public Member Functions | |
| WenoStencil (const GridType &grid) | |
| WenoStencil (const GridType &grid, Real dx) | |
| ValueType | normSqGrad (const ValueType &isoValue=zeroVal< ValueType >()) const |
| Return the norm-square of the WENO upwind gradient (computed via WENO upwinding and Godunov's scheme) at the previously buffered location. | |
| math::Vec3< ValueType > | gradient (const math::Vec3< ValueType > &V) const |
| math::Vec3< ValueType > | gradient () const |
| ValueType | laplacian () const |
| bool | zeroCrossing () const |
| void | moveTo (const Coord &ijk) |
| Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors. | |
| const ValueType & | getValue (unsigned int pos=0) const |
| Return the value from the stencil buffer with linear offset pos. | |
| void | setValue (const ValueType &value) |
| Set the value at the specified location relative to the center of the stencil. | |
| int | size () |
| Return the size of the stencil buffer. | |
| ValueType | median () const |
| Return the median value of the current stencil. | |
| ValueType | mean () const |
| Return the mean value of the current stencil. | |
| ValueType | min () const |
| Return the smallest value in the stencil buffer. | |
| ValueType | max () const |
| Return the largest value in the stencil buffer. | |
| const Coord & | getCenterCoord () const |
| Return the coordinates of the center point of the stencil. | |
| const ValueType & | getCenterValue () const |
| Return the value at the center of the stencil. | |
| bool | intersects (const ValueType &isoValue=zeroVal< ValueType >()) const |
| Return true if the center of the stencil intersects the iso-contour specified by the isoValue. | |
| std::bitset< 6 > | intersectionMask (const ValueType &isoValue=zeroVal< ValueType >()) const |
| Return true a bit-mask where the 6 bits indicates if the center of the stencil intersects the iso-contour specified by the isoValue. | |
| const GridType & | grid () const |
| Return a const reference to the grid from which this stencil was constructed. | |
| const AccessorType & | accessor () const |
| Return a const reference to the ValueAccessor associated with this Stencil. | |
Static Public Attributes | |
| static const int | SIZE = 19 |
Protected Attributes | |
| const GridType * | mGrid |
| Coord | mCenter |
Friends | |
| template<typename, typename, bool> | |
| class | BaseStencil |
This is a special 19-point stencil that supports optimal fifth-order WENO upwinding, second-order central differencing, Laplacian, and zero-crossing test.
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inherited |
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inherited |
| typedef GridT GridType |
| typedef GridT::TreeType TreeType |
| typedef GridType::ValueType ValueType |
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inline |
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inline |
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inlineinherited |
Return a const reference to the ValueAccessor associated with this Stencil.
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inlineinherited |
Return the coordinates of the center point of the stencil.
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inlineinherited |
Return the value at the center of the stencil.
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inlineinherited |
Return the value from the stencil buffer with linear offset pos.
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inline |
Return the gradient computed at the previously buffered location by second-order central differencing.
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inline |
Return the optimal fifth-order upwind gradient corresponding to the direction V.
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inlineinherited |
Return a const reference to the grid from which this stencil was constructed.
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inlineinherited |
Return true a bit-mask where the 6 bits indicates if the center of the stencil intersects the iso-contour specified by the isoValue.
The ordering of bit mask is ( -x, +x, -y, +y, -z, +z ), so to check if there is an intersection in -y use mask.test(2) where mask is ther return value from this function. To check if there are any intersections use mask.any(), and for no intersections use mask.none(). To count the number of intersections use mask.count().
Return true if the center of the stencil intersects the iso-contour specified by the isoValue.
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inline |
Return the Laplacian computed at the previously buffered location by second-order central differencing.
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inlineinherited |
Return the largest value in the stencil buffer.
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inlineinherited |
Return the mean value of the current stencil.
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inlineinherited |
Return the median value of the current stencil.
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inlineinherited |
Return the smallest value in the stencil buffer.
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inlineinherited |
Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors.
| ijk | Index coordinates of stencil center |
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inline |
Return the norm-square of the WENO upwind gradient (computed via WENO upwinding and Godunov's scheme) at the previously buffered location.
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inlineinherited |
Set the value at the specified location relative to the center of the stencil.
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inlineinherited |
Return the size of the stencil buffer.
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inline |
Return true if the sign of the value at the center point of the stencil differs from the sign of any of its six nearest neighbors
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friend |
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protectedinherited |
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protectedinherited |
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