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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2017 by The University of Queensland //
// Centre for Geoscience Computing //
// http://earth.uq.edu.au/centre-geoscience-computing //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
/////////////////////////////////////////////////////////////
#include "geocolormap.h"
//-- system includes --
#include <cstdlib>
using std::rand;
GeoColorMap::GeoColorMap(const Vec3& c0,const Vec3& cm,double x0,double xm,int nlayer,double rd)
:ColorMap(c0,cm,x0,xm)
{
// calc initial layer thickness
double sum_l=0.0;
for(int i=0;i<nlayer;i++){
double l=1.0-rd+(2.0*rd*((double)(rand())/(double)(RAND_MAX)));
m_bdry.push_back(l);
sum_l+=l;
std::cout << "layer: " << l << std::endl;
}
std::cout << "layer sum: " << sum_l << std::endl;
// scale layer thickness
double scale=(x_max-x_min)/sum_l;
for(vector<double>::iterator iter=m_bdry.begin();
iter!=m_bdry.end();
iter++){
(*iter)=(*iter)*scale;
std::cout << "new layer: " << *iter << std::endl;
}
}
Vec3 GeoColorMap::getColor(double x) const
{
Vec3 res;
if(x<x_min){
res=c_min;
} else if (x>x_max){
res=c_max;
} else {
double l=x_min;
int count=0;
vector<double>::const_iterator iter=m_bdry.begin();
while((iter!=m_bdry.end()) && (l<x)){
l+=(*iter);
count++;
iter++;
}
if((count%2)==0){
res=c_min;
} else {
res=c_max;
}
}
return res;
}
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