PSSource.cpp

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* Author: Gonçalo Cabrita and Pedro Sousa on 02/15/2010
*********************************************************************/
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <cstdlib>

#include "PSSources.h"

// *****************************************************************************
// Constructor.
plumesim::PSSource::PSSource()
{
        // Nothing...
}

// *****************************************************************************
// Destructor.
plumesim::PSSource::~PSSource()
{
        // Clean up...
}

// *****************************************************************************
// Setup routine.
int plumesim::PSSource::setup()
{
        return 0;
}

// *****************************************************************************
// Cleanup routine.
int plumesim::PSSource::cleanup()
{
        return 0;
}

// *****************************************************************************
// Generate points.
int plumesim::PSSource::generatePoints()
{
        return 0;
}

// *****************************************************************************
// Sends the chemical reading for a given position.
int plumesim::PSSource::getChemicalReading(PSPoint3d * point, PSOdorData * odor_data)
{
        return 0;
}

// *****************************************************************************
// If the class is time invariant or not.
bool plumesim::PSSource::ChangesOverTime()
{
        return changesOverTime;
}

// *****************************************************************************
// If the class is still processing data.
bool plumesim::PSSource::IsPlaying()
{
        return isPlaying;
}

// *****************************************************************************
// Uniform distribution, [0 ... 1]
float plumesim::PSSource::drand()
{
        return ((rand()+1.0)/(RAND_MAX+1.0));
}

// *****************************************************************************
// Normal distribution, centered on 0, std dev 1
double plumesim::PSSource::randomNormal()
{
        return (sqrt(-2*log(drand()))*cos(2*M_PI*drand()));
}

// *****************************************************************************
// Count the points in a sphere
int plumesim::PSSource::countPoints(PSPoint3d * center, double radius)
{       
        int pointCount = 0;
        for(int i=0 ; i<plumePoints.size() ; i++)
        {
                if(sqrt((center->px - plumePoints[i].px)*(center->px - plumePoints[i].px) + (center->py - plumePoints[i].py)*(center->py - plumePoints[i].py) + (center->pz - plumePoints[i].pz)*(center->pz - plumePoints[i].pz)) <= radius) pointCount++;
        }
        return pointCount;
}

// EOF