1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* 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 OUT_FILE_CURVE = "example1_curve.g2";
string OUT_FILE_POINTS = "example1_points.g2";
string DESCRIPTION =
"This program will generate a new SISL spline object from \n"
"predefined control points and parametrization, and will \n"
"write the result in Go-format to the file '" + OUT_FILE_CURVE + "'.\n"
"The curve's control points will be written separately to \n"
"the file '" + OUT_FILE_POINTS + "'.\n";
const int number = 10;
const int order = 4;
double coef[] = {0, 0, 0,
1, 0, 0.5,
1, 1, 1,
0, 1, 1.5,
0, 0, 2,
1, 0, 2.5,
1, 1, 3,
0, 1, 3.5,
0, 0, 4,
1, 0, 4.5};
double knots[] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 7, 7, 7};
}; // 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 {
SISLCurve* curve = newCurve(number, // number of control points
order, // order of spline curve (degree + 1)
knots, // pointer to knot vector (parametrization)
coef, // pointer to coefficient vector (control points)
1, // kind = polynomial B-spline curve
3, // dimension
0); // no copying of information, 'borrow' arrays
if (!curve) {
throw runtime_error("Error occured while generating curve.");
}
ofstream os_curve(OUT_FILE_CURVE.c_str());
ofstream os_points(OUT_FILE_POINTS.c_str());
if (!os_curve || !os_points) {
throw runtime_error("Unable to open output file.");
}
// write result to file
writeGoCurve(curve, os_curve);
writeGoPoints(number, coef, os_points);
// cleaning up
freeCurve(curve);
os_curve.close();
os_points.close();
} catch (exception& e) {
cerr << "Exception thrown: " << e.what() << endl;
return 0;
}
return 1;
};
|
