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virtual | ~MiPointProbeUnstructured () |
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virtual bool | setLocation (const MbVec3d &point, const MiCellFilterI *cellFilter=NULL)=0 |
| Sets the current probe location at the given point and looks for the cell containing this point.
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virtual bool | moveLocation (const MbVec3d &point, size_t cellId, const MiCellFilterI *cellFilter=NULL)=0 |
| Moves the current probe location at the given point.
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virtual bool | isFound () const =0 |
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template<typename _T > |
_T | getValue (const MiDataSetI< _T > &dataset) const |
| Gets the value at the current probe location in the given dataset.
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virtual size_t | getCellId () const =0 |
| Gets the id of the cell of the mesh containing the current location of the probe.
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virtual const MbVec3d & | getCoord () const =0 |
| Gets the coordinates of the current location of the probe.
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Probe at a given location in an unstructured mesh
This class can be used to evaluate the value of a data set in the given mesh at any location. The probe is internally building an octree onto volume meshes. This octree can be optimized by setting three environment variables (see SoPreferences).
MESHVIZ_OCTREE_CACHE_CELLBBOX allows to cache cell boundingboxes in order to speed up the search for cells in the octree, thus probing faster. The default is 0 (not cached)
MESHVIZ_OCTREE_MAX_CELL_PER_TILE specifies the maximum number of cells that can belong to a tile in the octree. Note that only leaves can contain cells. Hence, this is the breaking criteria to split up a leaf and distribute its cells into the new-born children. The smaller this number, the deeper the octree, which will speed up probing but slow down the initialization stage. The default is 40.
MESHVIZ_OCTREE_MAX_DEPTH specifies the depth limit of the octree to prevent from using too much memory. Note that when reaching the depth limit, tiles at this level can exceed the number of cells allowed. The default is 6.
Definition at line 59 of file MiPointProbeUnstructured.h.
virtual bool MiPointProbeUnstructured::moveLocation |
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const MbVec3d & |
point, |
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size_t |
cellId, |
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const MiCellFilterI * |
cellFilter = NULL |
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) |
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pure virtual |
Moves the current probe location at the given point.
This method is similar and gives the same result as setLocation(). But, first it looks for the containing cell in the neighborhood of the cell having id cellId . Then, if the neighborhood of this given cell does not contain the
given point this method searches in the whole mesh like the method setLocation().
For instance, moveLocation() could be used instead of setLocation() when the cell containing the point is already known, or when the displacement of the probe is not too large compared to the cell's size at the previous location of the probe. In this case, use getCellId() as input cellId argument.
- Parameters
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[in] | point | The destination point of the probe.
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[in] | cellId | input cell used as initial search criteria. If UNDEFINED_ID, this method is equivalent to setLocation(). |
[in] | cellFilter | The cell filter.
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- Returns
- true if this location is inside the mesh, false otherwise.