Cache Class Reference

manage list of cache items per frame and writes them to disk at a regular interval More...

#include <Cache.h>

List of all members.

Public Member Functions
	Cache ()
	ctor
void	addItem (const CacheItem &_cacheItem)
	add cache items to the cache
int	getCacheCount () const
	return the number of items in the cache
void	flushCache (const std::string _path)
	writes the contents of the cache to file
Private Member Functions
void	writePointData (std::vector< ngl::Vector > &_positionList, const std::string &_filename)
	write point positions (fluid and sphere) to file
void	writeBoundaryData (std::vector< ngl::Vector > &_positionList, const std::string &_filename)
	write the boundary box information to file
Private Attributes
std::vector< CacheItem >	m_fluidCache
	the list of cache items held in the cache

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Detailed Description

manage list of cache items per frame and writes them to disk at a regular interval

Definition at line 16 of file Cache.h.

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Constructor & Destructor Documentation

Cache::Cache

(

)

ctor

Definition at line 8 of file Cache.cpp.

{

}

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Member Function Documentation

void Cache::addItem

(

const CacheItem &

_cacheItem

)

add cache items to the cache

Parameters:

[in]

_cacheItem

the item to add to the cache list

Definition at line 13 of file Cache.cpp.

References m_fluidCache.

{
    m_fluidCache.push_back(_cacheItem);
}

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void Cache::flushCache

(

const std::string

_path

)

writes the contents of the cache to file

Definition at line 18 of file Cache.cpp.

References BOUNDARY_CACHE, CAPSULE_CACHE, FLUID_CACHE, CacheItem::getCacheItemType(), CacheItem::getFrameNumber(), CacheItem::getNameList(), CacheItem::getPositionList(), m_fluidCache, SPHERE_CACHE, writeBoundaryData(), and writePointData().

{
    //loop through cache items
    for (int i = 0; i < m_fluidCache.size(); ++i)
    {
        //get cache item
        CacheItem item = m_fluidCache[i];

        //loop through name list of the item
        for (int j = 0; j < item.getNameList().size(); ++j)
        {
            //determine type of item
            std::string itemType;
            if (item.getCacheItemType() == FLUID_CACHE)
                itemType = "Fluid";
            else if (item.getCacheItemType() == BOUNDARY_CACHE)
                itemType = "Boundary";
            else if (item.getCacheItemType() == SPHERE_CACHE)
                itemType = "Sphere";
            else if (item.getCacheItemType() == CAPSULE_CACHE)
                itemType = "Capsule";
            else
                itemType = "NA";

            //construct filename of the item for the current frame number
            QString text = QString("%1%2_%3_Frame_%4.geo")
                            .arg(_path.c_str())
                            .arg(itemType.c_str())
                            .arg(std::string(item.getNameList()[j]).c_str())
                            .arg(item.getFrameNumber());

            //write data to file
            if (item.getCacheItemType() == FLUID_CACHE || item.getCacheItemType() == SPHERE_CACHE || item.getCacheItemType() == CAPSULE_CACHE)
                writePointData(item.getPositionList()[j], text.toStdString());
            else if (item.getCacheItemType() == BOUNDARY_CACHE)
                writeBoundaryData(item.getPositionList()[j], text.toStdString());

        }
    }

    //clear cache
    m_fluidCache.clear();
}

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int Cache::getCacheCount

(

)

const [inline]

return the number of items in the cache

Definition at line 27 of file Cache.h.

References m_fluidCache.

{ return m_fluidCache.size(); }

void Cache::writeBoundaryData	(	std::vector< ngl::Vector > &	_positionList,
		const std::string &	_filename
	)		[private]

write the boundary box information to file

Parameters:

[in]	_positionList	the position list to write out
[in]	_filename	the name of the file on disk

Definition at line 96 of file Cache.cpp.

{
    //open file for writing
    std::ofstream outFile(_filename.c_str(), std::ios::out);

    //write header
    outFile << "PGEOMETRY V5\n";
    outFile << "NPoints 8 NPrims 6\n";
    outFile << "NPointGroups 0 NPrimGroups 0\n";
    outFile << "NPointAttrib 0 NVertexAttrib 0 NPrimAttrib 0 NAttrib 0\n";

    //loop through position list
    for (int i = 0; i < _positionList.size(); ++i)
    {
        outFile
                << _positionList[i].m_x << " "
                << _positionList[i].m_y << " "
                << _positionList[i].m_z << " "
                << _positionList[i].m_w << "\n";
    }

    //write box vertex connections
    outFile << "Run 6 Poly\n";
    outFile << " 4 < 1 5 4 0\n";
    outFile << " 4 < 2 6 5 1\n";
    outFile << " 4 < 3 7 6 2\n";
    outFile << " 4 < 0 4 7 3\n";
    outFile << " 4 < 2 1 0 3\n";
    outFile << " 4 < 5 6 7 4\n";

    //write the outro
    outFile << "beginExtra\n";
    outFile << "endExtra";

    //close file
    outFile.close();
}

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void Cache::writePointData	(	std::vector< ngl::Vector > &	_positionList,
		const std::string &	_filename
	)		[private]

write point positions (fluid and sphere) to file

Parameters:

[in]	_positionList	the position list to write out
[in]	_filename	the name of the file on disk

Definition at line 63 of file Cache.cpp.

{
    //open file for writing
    std::ofstream outFile(_filename.c_str(), std::ios::out);

    //write header
    outFile << "PGEOMETRY V5\n";
    outFile << "NPoints " << _positionList.size() << " NPrims 0\n";
    outFile << "NPointGroups 0 NPrimGroups 0\n";
    outFile << "NPointAttrib 0 NVertexAttrib 0 NPrimAttrib 0 NAttrib 0\n";

    //loop through position list
    for (int i = 0; i < _positionList.size(); ++i)
    {
        outFile
                << _positionList[i].m_x << " "
                << _positionList[i].m_y << " "
                << _positionList[i].m_z << " "
                << _positionList[i].m_w << "\n";
    }

    //write the outro
    outFile << "beginExtra\n";
    outFile << "endExtra";

    //close file
    outFile.close();
}

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Member Data Documentation

std::vector<CacheItem> Cache::m_fluidCache [private]

the list of cache items held in the cache

Definition at line 34 of file Cache.h.

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The documentation for this class was generated from the following files:

• include/Cache.h
• src/Cache.cpp