pointStructure.hpp

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/*------------------------------- phasicFlow ---------------------------------
      O        C enter of
     O O       E ngineering and
    O   O      M ultiscale modeling of
   OOOOOOO     F luid flow       
------------------------------------------------------------------------------
  Copyright (C): www.cemf.ir
  email: hamid.r.norouzi AT gmail.com
------------------------------------------------------------------------------  
Licence:
  This file is part of phasicFlow code. It is a free software for simulating 
  granular and multiphase flows. You can redistribute it and/or modify it under
  the terms of GNU General Public License v3 or any other later versions. 
 
  phasicFlow is distributed to help others in their research in the field of 
  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
-----------------------------------------------------------------------------*/
 
 
#ifndef __pointStructure_hpp__
#define __pointStructure_hpp__
 
 
 
#include "Vectors.hpp"
#include "VectorSingles.hpp"
#include "VectorDuals.hpp"
#include "Fields.hpp"
#include "eventSubscriber.hpp"
#include "indexContainer.hpp"
 
 
 
namespace pFlow
{
 
//forward
class box;
class setFieldList;
class repository;
 
class pointStructure
:
    public eventSubscriber
{
public:
    
    enum PointFlag: int8
    {
        DELETED     = -1,
        ACTIVE      = 1
    };
 
    
    inline static const size_t maxSizeDefault_ = 10000;
 
    class activePointsDevice
    {
    protected:
        ViewType1D<int8>    flag_;
 
        bool allActive_;
 
        range activeRange_;
 
    public:
 
        INLINE_FUNCTION_H
        activePointsDevice(bool allActive, range active, const ViewType1D<int8>& flag)
        :
            flag_(flag),
            allActive_(allActive),
            activeRange_(active)
        {}
 
        INLINE_FUNCTION_HD
        activePointsDevice(const activePointsDevice&) = default;
 
        INLINE_FUNCTION_HD
        activePointsDevice& operator=(const activePointsDevice&) = default;
 
        INLINE_FUNCTION_HD
        bool operator()(int32 i)const {
            if(i<activeRange_.second && flag_[i] == 1)return true;
            return false;
        }
 
        INLINE_FUNCTION_HD
        auto activeRange()const {
            return activeRange_; 
        }
 
        INLINE_FUNCTION_HD
        auto allActive()const {
            return allActive_;
        }
 
    };
 
    class activePointsHost
    {
    protected:
        
        ViewType1D<int8, HostSpace>     flag_;
 
        bool allActive_;
 
        range activeRange_;
 
    public:
 
        INLINE_FUNCTION_H
        activePointsHost(bool allActive, range active, const ViewType1D<int8, HostSpace>& flag)
        :
            flag_(flag),
            allActive_(allActive),
            activeRange_(active){}
 
        INLINE_FUNCTION_H
        activePointsHost(const activePointsHost&) = default;
 
        INLINE_FUNCTION_H
        activePointsHost& operator=(const activePointsHost&) = default;
 
        INLINE_FUNCTION_H
        bool operator()(int32 i)const {
            if(i <activeRange_.second && flag_[i] == PointFlag::ACTIVE)return true;
            return false;
        }
 
        INLINE_FUNCTION_H
        auto activeRange()const{
            return activeRange_;
        }
 
        INLINE_FUNCTION_H
        bool allActive()const {
            return allActive_;
        }
    };
 
protected:
 
 
        // number of points / size of structure
        size_t          numPoints_      = 0;    
 
        // maximum number of points
        size_t          maxPoints_      = maxSizeDefault_;
 
        // flag of points on device
        int8Field_HD            pointFlag_;
 
        // position of points on device
        realx3Field_D           pointPosition_;
 
        // number of active points
        size_t                  numActivePoints_ = 0;
 
        // index range of active points (half-open range)
        range                   activeRange_;   
 
        int32IndexContainer     tobeInsertedIndex_;
 
        int32IndexContainer     mortonSortedIndex_;
    
 
        FUNCTION_H
        bool evaluatePointStructure();
 
        FUNCTION_H
        void setNumMaxPoints();
 
        // - access to pointPosition
        FUNCTION_H
        realx3Field_D& pointPosition();
        
        // - access to pointFlag
        FUNCTION_H
        int8Field_HD& pointFlag();
 
        FUNCTION_H
        uniquePtr<int32IndexContainer> 
            getNewPointsIndices(int32 numNewPoints)const;
 
public:
 
    friend class dynamicPointStructure;
    
    // - type info
    TypeInfo("pointStructure");
    
 
 
        // - an empty pointStructure, good for reading from file 
        pointStructure();
 
        // - construct from components
        pointStructure(const int8Vector& flgVec, const realx3Vector& posVec);
 
        // - construct from point positions, assume all points are active
        pointStructure(const realx3Vector& posVec);
 
        // - copy construct
        //
        //   should be changed, may causs undefined behavior 
        pointStructure(const pointStructure&) = default;
 
        
        // - no move construct 
        pointStructure(pointStructure&&) = delete;
 
        // - copy assignment 
        //
        //   should be changed, may causs undefined behavior 
        pointStructure& operator=(const pointStructure&) = default;
 
        // - no move assignment 
        pointStructure& operator=(pointStructure&&) = delete;
 
        // - destructor 
        virtual ~pointStructure() = default;
 
 
        activePointsDevice activePointsMaskD()const
        {
            return activePointsDevice(
                this->allActive(),
                activeRange(),
                pointFlag_.deviceVectorAll()
                );
        }
 
        activePointsHost activePointsMaskH()const
        {
            return activePointsHost(
                this->allActive(),
                activeRange(),
                pointFlag_.hostVectorAll()
                );
        }
 
        // - const access pointPosition
        FUNCTION_H
        const realx3Field_D& pointPosition()const;
        
        // - const access to pointFlag
        FUNCTION_H
        const int8Field_HD& pointFlag()const;
 
        INLINE_FUNCTION_H
        auto pointPositionHostAll()
        {
            return pointPosition_.hostVectorAll();
        }
 
        // - size of data structure
        FUNCTION_H
        label size()const;
        
        // - maximum capacity of data structure 
        FUNCTION_H
        label capacity()const;
        
        // - number of active points 
        FUNCTION_H
        label numActive() const;
                
        // - if all points are active 
        FUNCTION_H
        bool allActive()const;
 
        INLINE_FUNCTION_H
        range activeRange()const
        {
            return activeRange_;
        }
 
        INLINE_FUNCTION_H
        bool isActive(label i)const
        {
            return pointFlag_[i] == ACTIVE;
        }
 
        FUNCTION_H
        size_t markDeleteOutOfBox(const box& domain);
 
        // - update data structure by removing the marked points 
        //   Notifies all the fields that are built based on this data structure
        //   and then apply removing to the pointPosition_ and pointFlag_
        FUNCTION_H
        virtual bool updateForDelete();
 
 
        FUNCTION_H
        virtual bool mortonSortPoints(const box& domain, real dx);
 
        
        // - const access to points to be newly inserted
        FUNCTION_H 
        auto insertedPointIndex()const
        {
            return tobeInsertedIndex_;
        }
 
        FUNCTION_H 
        auto insertedPointIndexH()const
        {
            return tobeInsertedIndex_.hostView();
        }
 
        FUNCTION_H 
        auto insertedPointIndexD()const
        {
            return tobeInsertedIndex_.deviceView();
        }
 
 
        FUNCTION_H
        auto mortonSortedIndex()const
        {
            return mortonSortedIndex_;
        }
 
 
        // - update data structure by inserting/setting new points 
        //   Notifies all the fields in the registered list of data structure
        //   and exclude the fields that re in the exclusionList
        //   retrun nullptr if it fails 
        FUNCTION_H
        virtual uniquePtr<int32IndexContainer> insertPoints(
            const realx3Vector& pos,
            const setFieldList& setField,
            repository& owner,
            const List<eventObserver*>& exclusionList={nullptr}
        );
 
    
        // - read pointStructure from is
        FUNCTION_H
        bool readPointStructure(iIstream& is);
 
        // - write pointStructure to os
        FUNCTION_H
        bool writePointStructure(iOstream& os)const;
 
        // - read 
        FUNCTION_H
        bool read(iIstream& is)
        {
            return readPointStructure(is);
        }
 
        // - write 
        FUNCTION_H
        bool write(iOstream& os)const
        {
            return writePointStructure(os);
        }
 
};
 
 
} // pFlow
 
 
 
 
#endif //__pointStructure_hpp__