GAS/GAS_SPHDensity.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *      Jeff Lait
 *      Side Effects Software Inc
 *      123 Front Street West, Suite 1401
 *      Toronto, Ontario
 *      Canada   M5J 2M2
 *      416-504-9876
 *
 * NAME:        GAS_SPHDensity.h ( GAS Library, C++)
 *
 * COMMENTS:
 *      Recalculates the density for each particle according
 *      to its mass & sph values.
 */

#ifndef __GAS_SPHDensity__
#define __GAS_SPHDensity__

#include "GAS_API.h"

#include <GU/GU_Detail.h>

#include <UT/UT_ThreadedAlgorithm.h>

#include "GAS_SubSolver.h"
#include "GAS_Utils.h"

class GU_Detail;

class GAS_API GAS_SPHDensity : public GAS_SubSolver
{
public:
    GET_DATA_FUNC_S(GAS_NAME_GEOMETRY,  GeometryName);

    bool                 shouldMultiThread() { return true; }

protected:
    explicit             GAS_SPHDensity(const SIM_DataFactory *factory);
    virtual             ~GAS_SPHDensity();

    /// Moves the fields given by FieldName by the given velocity
    /// field.  Moves the points given by GeometryName likewise.
    virtual bool         solveGasSubclass(SIM_Engine &engine,
                                SIM_Object *obj,
                                SIM_Time time,
                                SIM_Time timestep);

protected:
    THREADED_METHOD1(GAS_SPHDensity, shouldMultiThread(), calculateDensity,
                                GU_Detail *, gdp)
    void                 calculateDensityPartial(GU_Detail *gdp,
                                const UT_JobInfo &info);

private:
    static const SIM_DopDescription     *getDopDescription();

    DECLARE_STANDARD_GETCASTTOTYPE();
    DECLARE_DATAFACTORY(GAS_SPHDensity,
                        GAS_SubSolver,
                        "Gas SPH Density",
                        getDopDescription());
};

#endif

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