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/*
Provides interactive console tool for decomposition and/or integration over arbitrary simplices
*/
#include "PolyTrie.h"
#include "newIntegration.h"
#include "../timing.h"
#include <iostream>
#include <fstream>
#include <NTL/ZZ.h>
#include <string>
#include <cstring>
using namespace std;
int main(int argc, char *argv[])
{
bool options = true;
bool decomposing = false;
ifstream inFile; istream inStream (std::cin.rdbuf());
ofstream outFile; ostream outStream (std::cout.rdbuf());
for (int i = 1; i < argc; i++)
{
if (options)
{
if (strncmp(argv[i], "-", 1) != 0)
{
options = false;
inFile.open(argv[i], ios::in);
if (!inFile.is_open()) { cout << "Error: cannot open " << argv[i] << ", please try again." << endl; return 1; }
inStream.rdbuf(inFile.rdbuf());
}
else
{
if (strcmp(argv[i], "-m") == 0 || strcmp(argv[i], "-monomial"))
{
decomposing = true;
}
}
}
else
{
outFile.open(argv[i], ios::out);
if (!outFile.is_open()) { cout << "Error: cannot open " << argv[i] << ", please try again." << endl; return 1; }
outStream.rdbuf(outFile.rdbuf());
}
}
bool polynomial = true; //file is assumed to alternate between monomial / linform sum and the associated simplex
float lastTime;
float sampleTime;
string line;
monomialSum monomials;
linFormSum forms;
int polyCount = 0;
int irregularForms = 0;
float loadTime, decomposeTime, integrateTime;
loadTime = decomposeTime = integrateTime = 0.0f;
Timer myTimer("Integration timer");
FormIntegrateConsumer<RationalNTL> *integrator;
if (!decomposing) { integrator = new FormIntegrateConsumer<RationalNTL>(); }
BTrieIterator<RationalNTL, int>* it = new BTrieIterator<RationalNTL, int>();
BTrieIterator<RationalNTL, ZZ>* it2 = new BTrieIterator<RationalNTL, ZZ>();
while (!inStream.eof())
{
getline(inStream, line, '\n');
if (!line.empty())
{
if (polynomial) //reading polynomial
{
sampleTime = myTimer.get_seconds();
if (decomposing) //input is sum of monomials that we decompose into sum of linear forms
{
cout << "Loading monomials..." << endl;
if (options) { outStream << line << endl; }
lastTime = myTimer.get_seconds();
myTimer.start();
loadMonomials(monomials, line);
myTimer.stop();
loadTime += (myTimer.get_seconds() - lastTime);
outStream << "Loaded monomials in " << myTimer.get_seconds() - lastTime << "s." << endl;
cout << printMonomials(monomials) << endl;
if (monomials.termCount == 0 || monomials.varCount == 0)
{
cout << "Error: loaded invalid monomial sum." << endl;
return 1;
}
forms.termCount = 0;
forms.varCount = monomials.varCount;
cout << "Decomposing into sum of linear forms..." << endl;
cout << monomials.varCount << endl;
it->setTrie(monomials.myMonomials, monomials.varCount);
lastTime = myTimer.get_seconds();
myTimer.start();
decompose(it, forms);
myTimer.stop();
decomposeTime += (myTimer.get_seconds() - lastTime);
outStream << "Decomposition finished in " << myTimer.get_seconds() - lastTime << "s." << endl;
if (forms.termCount == 0 || forms.varCount == 0)
{
cout << "Error: no terms in decomposition to sum of linear forms.";
return 1;
}
destroyMonomials(monomials);
}
else //input is just linear forms
{
cout << "Reading sum of powers of linear forms..." << endl;
if (options) { outStream << line << endl; }
/*lastTime = myTimer.get_seconds();
myTimer.start();
loadLinForms(forms, line);
myTimer.stop();
loadTime += (myTimer.get_seconds() - lastTime);
outStream << "Loaded forms in " << myTimer.get_seconds() - lastTime << "s." << endl;
cout << printLinForms(forms) << endl;
if (forms.varCount == 0)
{
cout << "Error: loaded invalid form sum." << endl;
return 1;
}
destroyLinForms(forms);*/
integrator->setFormSum(line);
}
polynomial = false;
}
else //reading simplex
{
simplexZZ mySimplex;
cout << "Reading simplex..." << endl;
convertToSimplex(mySimplex, line);
//integrate here
ZZ numerator, denominator;
cout << "Integrating..." << endl;
if (decomposing)
{
it2->setTrie(forms.myForms, forms.varCount);
lastTime = myTimer.get_seconds();
myTimer.start();
integrateLinFormSum(numerator, denominator, it2, mySimplex);
myTimer.stop();
integrateTime += (myTimer.get_seconds() - lastTime);
destroyLinForms(forms);
}
else
{
integrator->setSimplex(mySimplex);
lastTime = myTimer.get_seconds();
myTimer.start();
parseLinForms(integrator, integrator->getFormSum());
myTimer.stop();
integrator->getResults(numerator, denominator);
integrateTime += (myTimer.get_seconds() - lastTime);
}
outStream << "Integrated in " << myTimer.get_seconds() - lastTime << "s." << endl;
outStream << "Calculated integral is \\frac{" << numerator << "}{" << denominator << "}" << endl;
polyCount++;
polynomial = true;
}
}
}
delete it;
outStream << "Processed " << polyCount;
if (decomposing)
{
outStream << " monomial sums." << endl;
outStream << "Average load time: " << (loadTime)/(polyCount + 0.0) << endl;
outStream << "Average decomposition time:" << (decomposeTime)/(polyCount + 0.0) << endl;
}
else
{
outStream << " sums of powers of linear forms." << endl;
}
outStream << "Average integration time:" << (integrateTime)/(polyCount + 0.0) << endl;
if (!decomposing) { delete integrator; }
if (inFile.is_open()) { inFile.close(); }
if (outFile.is_open()) { outFile.close(); }
return 0;
}
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