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/*
* Copyright (C) 1998, 2000-2007, 2010, 2011, 2012, 2013 SINTEF ICT,
* Applied Mathematics, Norway.
*
* Contact information: E-mail: tor.dokken@sintef.no
* SINTEF ICT, Department of Applied Mathematics,
* P.O. Box 124 Blindern,
* 0314 Oslo, Norway.
*
* This file is part of SISL.
*
* SISL is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* SISL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with SISL. If not, see
* <http://www.gnu.org/licenses/>.
*
* In accordance with Section 7(b) of the GNU Affero General Public
* License, a covered work must retain the producer line in every data
* file that is created or manipulated using SISL.
*
* Other Usage
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the SISL library without
* disclosing the source code of your own applications.
*
* This file may be used in accordance with the terms contained in a
* written agreement between you and SINTEF ICT.
*/
#include <iostream>
#include <fstream>
#include <string>
#include <stdexcept>
#include "sisl.h"
#include "GoReadWrite.h"
using namespace std;
namespace {
string IN_FILE_CURVE = "example6_curve_1.g2";
string DESCRIPTION =
//==========================================================
"This program computes the length of a curve read from file.\n"
"The name of this curve is: '" + IN_FILE_CURVE + "'.\n\n";
}; // end anonymous namespace
//===========================================================================
int main(int avnum, char** vararg)
//===========================================================================
{
cout << '\n' << vararg[0] << ":\n" << DESCRIPTION << endl;
cout << "To proceed, press enter, or ^C to quit." << endl;
getchar();
try {
ifstream is(IN_FILE_CURVE.c_str());
if (!is) {
throw runtime_error("Unable to open input file.");
}
// read curve from file
SISLCurve* cv = readGoCurve(is);
// computing length of curve
double epsge = 1.0e-5; // geometric tolerance
double length = 0;
int jstat = 0;
s1240(cv, // the curve we want to know the length of
epsge, // geometric tolerance
&length, // the calculated length
&jstat); // status report variable
if (jstat < 0) {
throw runtime_error("Error occured inside call to SISL routine s1240.");
} else if (jstat > 0) {
cerr << "WARNING: warning occured inside call to SISL routine s1240. \n"
<< endl;
}
cout << "Computed length of curve: " << length << "\n";
// cleaning up
freeCurve(cv);
is.close();
} catch (exception& e) {
cerr << "Exception thrown: " << e.what() << endl;
return 0;
}
return 1;
};
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