| [644] | 1 | #ifndef __XIOS_CSpatialTransformFilter__ |
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| 2 | #define __XIOS_CSpatialTransformFilter__ |
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| 3 | |
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| 4 | #include "filter.hpp" |
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| 5 | |
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| 6 | namespace xios |
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| 7 | { |
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| 8 | class CGrid; |
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| 9 | class CGridTransformation; |
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| 10 | class CSpatialTransformFilterEngine; |
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| 11 | |
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| 12 | /*! |
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| 13 | * A generic filter with one input slot wrapping any type of spatial transformations. |
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| 14 | */ |
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| 15 | class CSpatialTransformFilter : public CFilter |
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| 16 | { |
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| 17 | public: |
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| 18 | /*! |
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| 19 | * Constructs a filter wrapping the specified spatial transformation. |
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| 20 | * |
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| 21 | * \param gc the associated garbage collector |
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| 22 | * \param engine the engine defining the spatial transformation |
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| 23 | */ |
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| 24 | CSpatialTransformFilter(CGarbageCollector& gc, CSpatialTransformFilterEngine* engine); |
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| 25 | |
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| 26 | /*! |
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| 27 | * Builds the filter graph needed to transform the specified source grid into the specified destination grid. |
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| 28 | * |
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| 29 | * \param gc the associated garbage collector |
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| 30 | * \param srcGrid the source grid |
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| 31 | * \param destGrid the destination grid |
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| 32 | * \return the first and the last filters of the filter graph |
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| 33 | */ |
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| 34 | static std::pair<boost::shared_ptr<CSpatialTransformFilter>, boost::shared_ptr<CSpatialTransformFilter> > |
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| 35 | buildFilterGraph(CGarbageCollector& gc, CGrid* srcGrid, CGrid* destGrid); |
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| 36 | }; // class CSpatialTransformFilter |
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| 37 | |
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| 38 | /*! |
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| 39 | * A generic filter engine wrapping a grid transformation. |
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| 40 | */ |
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| 41 | class CSpatialTransformFilterEngine : public IFilterEngine |
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| 42 | { |
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| 43 | public: |
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| 44 | /*! |
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| 45 | * Returns the engine wrapping the specified grid transformation. |
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| 46 | * If the engine already exists it is reused, otherwise it is created. |
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| 47 | * |
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| 48 | * \param gridTransformation the grid transformation the engine will use |
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| 49 | * \return the engine wrapping the specified grid transformation |
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| 50 | */ |
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| 51 | static CSpatialTransformFilterEngine* get(CGridTransformation* gridTransformation); |
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| 52 | |
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| 53 | /*! |
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| 54 | * Applies the grid transformation to the input data and returns the result. |
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| 55 | * |
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| 56 | * \param data a vector of packets corresponding to each slot (one in this case) |
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| 57 | * \return the result of the grid transformation |
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| 58 | */ |
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| 59 | CDataPacketPtr virtual apply(std::vector<CDataPacketPtr> data); |
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| 60 | |
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| 61 | protected: |
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| 62 | /*! |
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| 63 | * Constructs a filter engine wrapping the specified grid transformation. |
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| 64 | * |
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| 65 | * \param gridTransformation the grid transformation the engine will use |
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| 66 | */ |
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| 67 | CSpatialTransformFilterEngine(CGridTransformation* gridTransformation); |
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| 68 | |
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| 69 | /*! |
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| 70 | * Applies the grid transformation to the input data and returns the result. |
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| 71 | * This helper function handles all the communications. |
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| 72 | * |
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| 73 | * \param dataSrc the source data |
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| 74 | * \param dataDest the resulting transformed data |
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| 75 | */ |
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| 76 | void apply(const CArray<double, 1>& dataSrc, CArray<double,1>& dataDest); |
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| 77 | |
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| 78 | CGridTransformation* gridTransformation; //!< The grid transformation used by the engine |
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| 79 | |
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| 80 | //! The allocated engines |
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| 81 | static std::map<CGridTransformation*, boost::shared_ptr<CSpatialTransformFilterEngine> > engines; |
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| 82 | }; // class CSpatialTransformFilterEngine |
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| 83 | } // namespace xios |
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| 84 | |
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| 85 | #endif //__XIOS_CSpatialTransformFilter__ |
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