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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 = "example1_curve.g2";
string OUT_FILE_CURVE = "example4_curve.g2";
string DESCRIPTION =
"This program will generate a SISL spline curve object that \n"
"approximates an offset from a given input curve (note that \n"
"the exact offset curve is not generally possible to \n"
"represent exactly using splines). The routine used is \n"
"s1360.\n"
"Input: " + IN_FILE_CURVE + " \n"
"Output: " + OUT_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) {
string error_message =
"Unable to open input file: " + IN_FILE_CURVE +
". Are you sure you have run the previous sample program?";
throw runtime_error(error_message.c_str());
}
SISLCurve* c1 = readGoCurve(is);
double offset = double(1); // the offset between the 'old' curve and the result.
double epsge = 1.0e-5; // geometric tolerance
double direction[] = {0, 0, 1}; // the direction of the offset
int dim = 3; // the dimension of the Euclidean space
int jstat; // status variable
SISLCurve* offset_curve = 0;
s1360(c1, // the 'old' curve
offset, // the offset value
epsge, // geometric tolerance
direction, // offset direction
0, // max step length. 0 indicate the longest box side of 's1'
dim, // the dimension
&offset_curve, // the resulting offset curve
&jstat); // status variable
if (jstat < 0) {
throw runtime_error("Error occured inside call to SISL routine s1360.");
} else if (jstat > 0) {
cerr << "WARNING: warning occured inside call to SISL routine s1360. \n" << endl;
}
ofstream os(OUT_FILE_CURVE.c_str());
if (!os) {
throw runtime_error("Unable to open output file.");
}
// write result to file
writeGoCurve(offset_curve, os);
// cleaning up
freeCurve(c1);
freeCurve(offset_curve);
is.close();
os.close();
} catch (exception& e) {
cerr << "Exception thrown: " << e.what() << endl;
return 0;
}
return 1;
};
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