├── .gitignore
├── PolarCords.cs
├── README.md
├── StellarObject.cs
├── Properties
└── AssemblyInfo.cs
├── GalaxyOptions.cs
├── Program.cs
├── Galaxy.csproj
├── GalaxyGenerator.cs
├── Galaxy.cs
└── LICENSE
/.gitignore:
--------------------------------------------------------------------------------
1 | obj/*
2 | bin/*
--------------------------------------------------------------------------------
/PolarCords.cs:
--------------------------------------------------------------------------------
1 | using System;
2 |
3 | namespace Galaxy
4 | {
5 | ///
6 | /// Polar coordinates.
7 | ///
8 | public struct PolarCords
9 | {
10 | public float x;
11 | public float y;
12 | }
13 | }
14 |
15 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # galaxy-gen
2 | A procedural galaxy generator in C# for .NET and Mono.
3 |
4 | This is not entirely my code and have made only small modifications. I can't remember who the original author was. If anyone knows let me know so I can attribute them.
5 |
--------------------------------------------------------------------------------
/StellarObject.cs:
--------------------------------------------------------------------------------
1 | using System;
2 |
3 | namespace Galaxy
4 | {
5 | ///
6 | /// Types of stellar objects at a galactic level.
7 | ///
8 | enum StellarObjectTypes
9 | {
10 | Star, StellarNebulae, PlanetaryNebulae, MiscNebulae, SuperNovae, Pulsar
11 | }
12 |
13 | ///
14 | /// Types of stars. Based on the Wikipedia article about stellar classification:
15 | /// https://en.wikipedia.org/wiki/Stellar_classification
16 | ///
17 | enum StarTypes
18 | {
19 | O, B, A, F, G, K, M
20 | }
21 | }
22 |
23 |
--------------------------------------------------------------------------------
/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
1 | using System.Reflection;
2 | using System.Runtime.CompilerServices;
3 |
4 | // Information about this assembly is defined by the following attributes.
5 | // Change them to the values specific to your project.
6 |
7 | [assembly: AssemblyTitle ("Galaxy")]
8 | [assembly: AssemblyDescription ("A random/procedural galaxy generator")]
9 | [assembly: AssemblyConfiguration ("")]
10 | [assembly: AssemblyCompany ("")]
11 | [assembly: AssemblyProduct ("")]
12 | [assembly: AssemblyCopyright ("conmarap")]
13 | [assembly: AssemblyTrademark ("")]
14 | [assembly: AssemblyCulture ("")]
15 |
16 | // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
17 | // The form "{Major}.{Minor}.*" will automatically update the build and revision,
18 | // and "{Major}.{Minor}.{Build}.*" will update just the revision.
19 |
20 | [assembly: AssemblyVersion ("1.0.*")]
21 |
22 | // The following attributes are used to specify the signing key for the assembly,
23 | // if desired. See the Mono documentation for more information about signing.
24 |
25 | //[assembly: AssemblyDelaySign(false)]
26 | //[assembly: AssemblyKeyFile("")]
27 |
28 |
--------------------------------------------------------------------------------
/GalaxyOptions.cs:
--------------------------------------------------------------------------------
1 | using System;
2 |
3 | namespace Galaxy
4 | {
5 | ///
6 | /// Galaxy options.
7 | ///
8 | public class GalaxyOptions
9 | {
10 | public string Name;
11 | public int AmountOfStars;
12 | public int NumberOfArms;
13 | public float MaxArmOffset;
14 | public float RotationFactor;
15 | public float RandomOffsetXY;
16 | public float ArmSeparationDistance;
17 |
18 | ///
19 | /// Initializes a new instance of the class.
20 | ///
21 | /// Name.
22 | /// Amount of stars.
23 | /// Number of arms.
24 | /// Max armo ffset.
25 | /// Rotation factor.
26 | /// Random offset x-y.
27 | public GalaxyOptions(string name, int amountofstars = 30000, int numberofarms = 4,
28 | float maxarmoffset = 0.9f, float rotationfactor = 5f, float randomoffsetxy = 0.04f)
29 | {
30 | this.Name = name;
31 | this.AmountOfStars = amountofstars;
32 | this.NumberOfArms = numberofarms;
33 | this.MaxArmOffset = maxarmoffset;
34 | this.RotationFactor = rotationfactor;
35 | this.RandomOffsetXY = randomoffsetxy;
36 | this.ArmSeparationDistance = 2 * (float)Math.PI / this.NumberOfArms;
37 | }
38 | }
39 | }
40 |
41 |
--------------------------------------------------------------------------------
/Program.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.Drawing;
3 | using Galaxy;
4 |
5 | namespace Galaxy
6 | {
7 | class MainClass
8 | {
9 | ///
10 | /// The entry point of the program, where the program control starts and ends.
11 | ///
12 | /// The command-line arguments.
13 | public static void Main(string[] args)
14 | {
15 | Console.WriteLine("Creating galaxy");
16 |
17 | // GalaxyOptions myGalaxyOptions = new GalaxyOptions ("My Huge Galaxy", 18000000, 10, 1.65f, 5, 0.08f);
18 | GalaxyOptions myGalaxyOptions = new GalaxyOptions("Galaxy", 200000, 4, 1.05f, 5, 0.05f);
19 | // GalaxyOptions myGalaxyOptions = new GalaxyOptions ("My Galaxy", 180000, 6, 1.35f, 5, 0.08f);
20 | GalaxyGenerator myGalaxy = new GalaxyGenerator(myGalaxyOptions, LongRandom(10, 1234567, new Random()));
21 | myGalaxy.GenerateGalacticBody();
22 | myGalaxy.DrawGalaxy(4000);
23 | }
24 |
25 | ///
26 | /// Longs the random. Taken from here, but modified:
27 | /// http://stackoverflow.com/questions/6651554/random-number-in-long-range-is-this-the-way#answer-6651661
28 | ///
29 | /// The random.
30 | /// Minimum.
31 | /// Max.
32 | /// Rand.
33 | private static int LongRandom(int min, int max, Random rand)
34 | {
35 | int result = rand.Next((Int32)(min >> 32), (Int32)(max >> 32));
36 | result = (result << 32);
37 | result = result | rand.Next((Int32)min, (Int32)max);
38 | return result;
39 | }
40 | }
41 | }
42 |
--------------------------------------------------------------------------------
/Galaxy.csproj:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 | Debug
5 | x86
6 | {2264FAB7-6529-4ADE-9E65-312DF63402C4}
7 | Exe
8 | Galaxy
9 | Galaxy
10 | v4.5
11 |
12 |
13 | true
14 | full
15 | false
16 | bin\Debug
17 | DEBUG;
18 | prompt
19 | 4
20 | true
21 | x86
22 |
23 |
24 | full
25 | true
26 | bin\Release
27 | prompt
28 | 4
29 | true
30 | x86
31 |
32 |
33 |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
--------------------------------------------------------------------------------
/GalaxyGenerator.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Drawing;
4 |
5 | namespace Galaxy
6 | {
7 | ///
8 | /// Galaxy generator.
9 | ///
10 | public class GalaxyGenerator
11 | {
12 | // Private class variables
13 |
14 | private int Seed;
15 | private GalaxyOptions Options;
16 | private PolarCords[] StarPositions;
17 | private Random random;
18 |
19 | ///
20 | /// Initializes a new instance of the class.
21 | ///
22 | public GalaxyGenerator (GalaxyOptions options, int seed = 0)
23 | {
24 | this.Options = options;
25 | this.Seed = seed;
26 | this.StarPositions = new PolarCords[Options.AmountOfStars];
27 |
28 | if (this.Seed != 0) {
29 | this.random = new Random (this.Seed);
30 | }
31 | else {
32 | this.random = new Random ();
33 | }
34 | }
35 |
36 | ///
37 | /// Gets the positions of the stars.
38 | ///
39 | /// The star positions.
40 | public PolarCords[] GetStarPositions()
41 | {
42 | return this.StarPositions;
43 | }
44 |
45 | ///
46 | /// Generates the galactic body. Based on this:
47 | /// http://itinerantgames.tumblr.com/post/78592276402/a-2d-procedural-galaxy-with-c
48 | ///
49 | public void GenerateGalacticBody()
50 | {
51 | /*int numArms = random.Next(2, 6);
52 | float armSeparationDistance = 2 * (float) Math.PI / numArms;
53 | float armOffsetMax = (float) (random.NextDouble () * (0.3 - 0.9) + 0.9); //0.9f;
54 | float rotationFactor = random.Next(2, 10); //5;
55 | float randomOffsetXY = (float) (random.NextDouble () * (0.02 - 0.06) + 0.06); //0.04f;
56 | */
57 |
58 | for (int i = 0; i < Options.AmountOfStars; i++) {
59 | // Choose a distance from the center of the galaxy.
60 | float distance = (float) (this.random.NextDouble () * (0.01 - 0.99) + 0.99);
61 | distance = (float) Math.Pow (distance, 2);
62 |
63 | // Choose an angle between 0 and 2 * PI.
64 | float angle = (float) this.random.NextDouble () * 2 * (float)Math.PI;
65 | float armOffset = (float) this.random.NextDouble () * Options.MaxArmOffset;
66 |
67 | armOffset = armOffset - Options.MaxArmOffset / 2;
68 | armOffset = armOffset * (1 / distance);
69 |
70 | float squaredArmOffset = (float) Math.Pow (armOffset, 2);
71 |
72 | // Take the positive value for the offset.
73 | if (armOffset < 0) {
74 | squaredArmOffset = Math.Abs (squaredArmOffset); // * -1;
75 | }
76 |
77 | armOffset = squaredArmOffset;
78 |
79 | float rotation = distance * Options.RotationFactor;
80 |
81 | // Compute the angle of the arms.
82 | angle = (int) (
83 | (this.random.NextDouble() * (0.71 - 0.99) + 0.99) * // Not necessary to be here.
84 | angle / Options.ArmSeparationDistance) *
85 | Options.ArmSeparationDistance + armOffset + rotation;
86 |
87 | // Convert polar coordinates to 2D cartesian coordinates.
88 | float starX = (float)Math.Cos (angle) * distance;
89 | float starY = (float)Math.Sin (angle) * distance;
90 |
91 | float randomOffsetX = (float) random.NextDouble () * Options.RandomOffsetXY;
92 | float randomOffsetY = (float) random.NextDouble () * Options.RandomOffsetXY;
93 |
94 | // Apply the random offset.
95 | starX += randomOffsetX;
96 | starY += randomOffsetY;
97 |
98 | // Amplify the results so that they can be visible to the human eye.
99 | starX = 1.25f + starX;
100 | starY = 1.25f + starY;
101 |
102 | // Assign the proper x and y coordinates.
103 | this.StarPositions[i].x = starX;
104 | this.StarPositions[i].y = starY;
105 | }
106 | }
107 |
108 | ///
109 | /// Draws the galaxy into an image.
110 | ///
111 | public void DrawGalaxy(int widthHeight = 2000)
112 | {
113 | int width = widthHeight;
114 | int height = widthHeight;
115 |
116 | // Save the galaxy as an image.
117 | Bitmap bmp = new Bitmap (width, height);
118 |
119 | // Default the background to black,
120 | for (int i = 0; i < width; i++) {
121 | for (int j = 0; j < height; j++) {
122 | bmp.SetPixel (i, j, Color.Black);
123 | }
124 | }
125 |
126 | int factor = (int) (widthHeight / 1.25 / 2);
127 |
128 | // Set the positions of the stars.
129 | foreach(PolarCords cords in this.StarPositions) {
130 | bmp.SetPixel (
131 | (int) (factor * cords.x),
132 | (int) (factor * cords.y),
133 | Color.AliceBlue
134 | );
135 | }
136 |
137 | // Save the image.
138 | bmp.Save(Options.Name + ".png", System.Drawing.Imaging.ImageFormat.Png);
139 | }
140 | }
141 | }
142 |
--------------------------------------------------------------------------------
/Galaxy.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.Drawing;
3 | using System.Collections.Generic;
4 | using System.IO;
5 |
6 | namespace Galaxy
7 | {
8 | public class Galaxy
9 | {
10 | // Private class variables.
11 | private PointF[] points;
12 | private int AmountOfStars = 180000;
13 |
14 | ///
15 | /// Initializes a new instance of the class.
16 | ///
17 | public Galaxy ()
18 | {
19 | }
20 |
21 | ///
22 | /// Gets the points.
23 | ///
24 | /// The points.
25 | public PointF[] getPoints()
26 | {
27 | return points;
28 | }
29 |
30 | ///
31 | /// Generates the galactic body; based on this article/tutorial:
32 | /// http://itinerantgames.tumblr.com/post/78592276402/a-2d-procedural-galaxy-with-c
33 | ///
34 | public void GenerateGalacticBody(string name = "galaxy")
35 | {
36 | Random random = new Random ();
37 |
38 | int numArms = random.Next(2, 6);
39 | float armSeparationDistance = 2 * (float) Math.PI / numArms;
40 | float armOffsetMax = (float) (random.NextDouble () * (0.3 - 0.9) + 0.9); //0.9f;
41 | float rotationFactor = random.Next(2, 10); //5;
42 | float randomOffsetXY = (float) (random.NextDouble () * (0.02 - 0.06) + 0.06); //0.04f;
43 |
44 | PolarCords[] starPositions = new PolarCords[AmountOfStars];
45 |
46 | using (StreamWriter sw = File.CreateText ("galaxy.csv")) {
47 | for (int i = 0; i < AmountOfStars; i++) {
48 | // Choose a distance from the center of the galaxy.
49 | float distance = (float) (random.NextDouble () * (0.01 - 0.99) + 0.99);
50 | distance = (float) Math.Pow (distance, 2);
51 |
52 | // Choose an angle between 0 and 2 * PI.
53 | float angle = (float)random.NextDouble () * 2 * (float)Math.PI;
54 | float armOffset = (float)random.NextDouble () * armOffsetMax;
55 | armOffset = armOffset - armOffsetMax / 2;
56 | armOffset = armOffset * (1 / distance);
57 |
58 | float squaredArmOffset = (float)Math.Pow (armOffset, 2);
59 | if (armOffset < 0)
60 | squaredArmOffset = squaredArmOffset * -1;
61 | armOffset = squaredArmOffset;
62 |
63 | float rotation = distance * rotationFactor;
64 |
65 | angle = (int)(angle / armSeparationDistance) * armSeparationDistance + armOffset + rotation;
66 |
67 | // Convert polar coordinates to 2D cartesian coordinates.
68 | float starX = (float)Math.Cos (angle) * distance;
69 | float starY = (float)Math.Sin (angle) * distance;
70 |
71 | float randomOffsetX = (float) random.NextDouble () * randomOffsetXY;
72 | float randomOffsetY = (float) random.NextDouble () * randomOffsetXY;
73 |
74 | starX += randomOffsetX;
75 | starY += randomOffsetY;
76 |
77 | if (800 * (1.25f + starX) > 2000 || 800 * (1.25f + starY) > 2000 ||
78 | 800 * (1.25f + starX) < 0 || 800 * (1.25f + starY) < 0) {
79 | Console.WriteLine (starX + "x" + starY);
80 | }
81 |
82 | starX = 800 * (1.25f + starX);
83 | starY = 800 * (1.25f + starY);
84 |
85 | sw.WriteLine (starX + "," + starY);
86 |
87 | // Now we can assign xy coords.
88 | starPositions [i].x = starX;
89 | starPositions [i].y = starY;
90 | }
91 | }
92 |
93 | // Save the galaxy as an image.
94 | Bitmap bmp = new Bitmap (2000, 2000);
95 | for (int i = 0; i < 2000; i++) {
96 | for (int j = 0; j < 2000; j++) {
97 | bmp.SetPixel (i, j, Color.Black);
98 | }
99 | }
100 |
101 | foreach(PolarCords cords in starPositions) {
102 | bmp.SetPixel (
103 | (int) cords.x,
104 | (int) cords.y,
105 | Color.AliceBlue
106 | );
107 | }
108 |
109 | bmp.Save(name + ".png", System.Drawing.Imaging.ImageFormat.Png);
110 | }
111 |
112 | public void DrawImage(string filename, int width, int height)
113 | {
114 | Bitmap bmp = new Bitmap (width, height);
115 | Brush brush = new SolidBrush (Color.FromArgb (20, 150, 200, 255));
116 | //File.Create (filename + ".dat");
117 | //Graphics graphics = Graphics.FromImage (Image.FromFile(filename));
118 |
119 | /*Image image;
120 |
121 | using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read))
122 | {
123 | image = Image.FromStream(fs);
124 | }
125 |
126 | Graphics graphics = Graphics.FromImage (image);
127 |
128 | foreach (PointF point in points)
129 | {
130 | Point screenPoint = new Point((int)(point.X * (float)width), (int)(point.Y * (float)height));
131 | screenPoint.Offset(new Point(-2, -2));
132 | graphics.FillRectangle(brush, new Rectangle(screenPoint, new Size(4, 4)));
133 | }
134 |
135 | image.Save (filename, System.Drawing.Imaging.ImageFormat.Png);*/
136 |
137 | using (StreamWriter sw = File.CreateText (filename + ".dat"))
138 | {
139 | foreach (PointF point in points)
140 | {
141 | bmp.SetPixel (
142 | 0,0,//(int)(Math.Abs(point.X) * (float)width),
143 | //(int)(Math.Abs(point.Y) * (float)height),
144 | Color.White
145 | );
146 |
147 | string data = (int)(Math.Abs (point.X) * (float)width) + "," +
148 | (int)(Math.Abs (point.Y) * (float)height);
149 |
150 | // Debug
151 | if ((int)( (point.X) * (float)width) >= 1600 || (int)((point.X) * (float)width) < 0 ||
152 | (int)(Math.Abs (point.Y) * (float)height) >= 1600 || (int)((point.Y) * (float)height) < 0)
153 | {
154 | Console.Write (data);
155 | Console.WriteLine ("\t" + point.X + "x" + point.Y);
156 | }
157 |
158 | sw.WriteLine (data);
159 | }
160 | }
161 |
162 | bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png);
163 | }
164 |
165 | ///
166 | /// Render the specified g, width and height.
167 | ///
168 | /// The green component.
169 | /// Width.
170 | /// Height.
171 | public void Render(Graphics g, int width, int height)
172 | {
173 | using (Brush brush = new SolidBrush(Color.FromArgb(20, 150, 200, 255)))
174 | {
175 | g.Clear(Color.Black);
176 | foreach (PointF point in points)
177 | {
178 | Point screenPoint = new Point((int)(point.X * (float)width), (int)(point.Y * (float)height));
179 | screenPoint.Offset(new Point(-2, -2));
180 | g.FillRectangle(brush, new Rectangle(screenPoint, new Size(4, 4)));
181 | }
182 | g.Flush();
183 | }
184 | }
185 |
186 | ///
187 | /// Generates the galaxy.
188 | ///
189 | /// The galaxy.
190 | /// Number of stars.
191 | /// Number of arms.
192 | /// Spin.
193 | /// Arm spread.
194 | /// Stars at center ratio.
195 | public PointF[] GenerateGalaxy(int numOfStars, int numOfArms, float spin, double armSpread, double starsAtCenterRatio)
196 | {
197 | List result = new List(numOfStars);
198 |
199 | for (int i = 0; i < numOfArms; i++)
200 | {
201 | result.AddRange(GenerateArm(numOfStars / numOfArms, (float)i / (float)numOfArms, spin, armSpread, starsAtCenterRatio));
202 | }
203 |
204 | points = result.ToArray ();
205 | return result.ToArray ();
206 | }
207 |
208 | ///
209 | /// Generates the arm.
210 | ///
211 | /// The arm.
212 | /// Number of stars.
213 | /// Rotation.
214 | /// Spin.
215 | /// Arm spread.
216 | /// Stars at center ratio.
217 | public PointF[] GenerateArm(int numOfStars, float rotation, float spin, double armSpread, double starsAtCenterRatio)
218 | {
219 | PointF[] result = new PointF[numOfStars];
220 | Random r = new Random();
221 |
222 | for (int i = 0; i < numOfStars; i++)
223 | {
224 | double part = (double)i / (double)numOfStars;
225 | part = Math.Pow(part, starsAtCenterRatio);
226 |
227 | float distanceFromCenter = (float)part;
228 | double position = (part * spin + rotation) * Math.PI * 2;
229 |
230 | double xFluctuation = (Pow3Constrained(r.NextDouble()) - Pow3Constrained(r.NextDouble())) * armSpread;
231 | double yFluctuation = (Pow3Constrained(r.NextDouble()) - Pow3Constrained(r.NextDouble())) * armSpread;
232 |
233 | float resultX = (float)Math.Cos(position) * distanceFromCenter / 2 + 0.5f + (float)xFluctuation;
234 | float resultY = (float)Math.Sin(position) * distanceFromCenter / 2 + 0.5f + (float)yFluctuation;
235 |
236 | result[i] = new PointF(resultX, resultY);
237 | }
238 |
239 | return result;
240 | }
241 |
242 | ///
243 | /// Pow3s the constrained.
244 | ///
245 | /// The constrained.
246 | /// The x coordinate.
247 | public static double Pow3Constrained(double x)
248 | {
249 | double value = Math.Pow(x - 0.5, 3) * 4 + 0.5d;
250 | return Math.Max(Math.Min(1, value), 0);
251 | }
252 | }
253 | }
254 |
255 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | GNU GENERAL PUBLIC LICENSE
2 | Version 3, 29 June 2007
3 |
4 | Copyright (C) 2007 Free Software Foundation, Inc.
5 | Everyone is permitted to copy and distribute verbatim copies
6 | of this license document, but changing it is not allowed.
7 |
8 | Preamble
9 |
10 | The GNU General Public License is a free, copyleft license for
11 | software and other kinds of works.
12 |
13 | The licenses for most software and other practical works are designed
14 | to take away your freedom to share and change the works. By contrast,
15 | the GNU General Public License is intended to guarantee your freedom to
16 | share and change all versions of a program--to make sure it remains free
17 | software for all its users. We, the Free Software Foundation, use the
18 | GNU General Public License for most of our software; it applies also to
19 | any other work released this way by its authors. You can apply it to
20 | your programs, too.
21 |
22 | When we speak of free software, we are referring to freedom, not
23 | price. Our General Public Licenses are designed to make sure that you
24 | have the freedom to distribute copies of free software (and charge for
25 | them if you wish), that you receive source code or can get it if you
26 | want it, that you can change the software or use pieces of it in new
27 | free programs, and that you know you can do these things.
28 |
29 | To protect your rights, we need to prevent others from denying you
30 | these rights or asking you to surrender the rights. Therefore, you have
31 | certain responsibilities if you distribute copies of the software, or if
32 | you modify it: responsibilities to respect the freedom of others.
33 |
34 | For example, if you distribute copies of such a program, whether
35 | gratis or for a fee, you must pass on to the recipients the same
36 | freedoms that you received. You must make sure that they, too, receive
37 | or can get the source code. And you must show them these terms so they
38 | know their rights.
39 |
40 | Developers that use the GNU GPL protect your rights with two steps:
41 | (1) assert copyright on the software, and (2) offer you this License
42 | giving you legal permission to copy, distribute and/or modify it.
43 |
44 | For the developers' and authors' protection, the GPL clearly explains
45 | that there is no warranty for this free software. For both users' and
46 | authors' sake, the GPL requires that modified versions be marked as
47 | changed, so that their problems will not be attributed erroneously to
48 | authors of previous versions.
49 |
50 | Some devices are designed to deny users access to install or run
51 | modified versions of the software inside them, although the manufacturer
52 | can do so. This is fundamentally incompatible with the aim of
53 | protecting users' freedom to change the software. The systematic
54 | pattern of such abuse occurs in the area of products for individuals to
55 | use, which is precisely where it is most unacceptable. Therefore, we
56 | have designed this version of the GPL to prohibit the practice for those
57 | products. If such problems arise substantially in other domains, we
58 | stand ready to extend this provision to those domains in future versions
59 | of the GPL, as needed to protect the freedom of users.
60 |
61 | Finally, every program is threatened constantly by software patents.
62 | States should not allow patents to restrict development and use of
63 | software on general-purpose computers, but in those that do, we wish to
64 | avoid the special danger that patents applied to a free program could
65 | make it effectively proprietary. To prevent this, the GPL assures that
66 | patents cannot be used to render the program non-free.
67 |
68 | The precise terms and conditions for copying, distribution and
69 | modification follow.
70 |
71 | TERMS AND CONDITIONS
72 |
73 | 0. Definitions.
74 |
75 | "This License" refers to version 3 of the GNU General Public License.
76 |
77 | "Copyright" also means copyright-like laws that apply to other kinds of
78 | works, such as semiconductor masks.
79 |
80 | "The Program" refers to any copyrightable work licensed under this
81 | License. Each licensee is addressed as "you". "Licensees" and
82 | "recipients" may be individuals or organizations.
83 |
84 | To "modify" a work means to copy from or adapt all or part of the work
85 | in a fashion requiring copyright permission, other than the making of an
86 | exact copy. The resulting work is called a "modified version" of the
87 | earlier work or a work "based on" the earlier work.
88 |
89 | A "covered work" means either the unmodified Program or a work based
90 | on the Program.
91 |
92 | To "propagate" a work means to do anything with it that, without
93 | permission, would make you directly or secondarily liable for
94 | infringement under applicable copyright law, except executing it on a
95 | computer or modifying a private copy. Propagation includes copying,
96 | distribution (with or without modification), making available to the
97 | public, and in some countries other activities as well.
98 |
99 | To "convey" a work means any kind of propagation that enables other
100 | parties to make or receive copies. Mere interaction with a user through
101 | a computer network, with no transfer of a copy, is not conveying.
102 |
103 | An interactive user interface displays "Appropriate Legal Notices"
104 | to the extent that it includes a convenient and prominently visible
105 | feature that (1) displays an appropriate copyright notice, and (2)
106 | tells the user that there is no warranty for the work (except to the
107 | extent that warranties are provided), that licensees may convey the
108 | work under this License, and how to view a copy of this License. If
109 | the interface presents a list of user commands or options, such as a
110 | menu, a prominent item in the list meets this criterion.
111 |
112 | 1. Source Code.
113 |
114 | The "source code" for a work means the preferred form of the work
115 | for making modifications to it. "Object code" means any non-source
116 | form of a work.
117 |
118 | A "Standard Interface" means an interface that either is an official
119 | standard defined by a recognized standards body, or, in the case of
120 | interfaces specified for a particular programming language, one that
121 | is widely used among developers working in that language.
122 |
123 | The "System Libraries" of an executable work include anything, other
124 | than the work as a whole, that (a) is included in the normal form of
125 | packaging a Major Component, but which is not part of that Major
126 | Component, and (b) serves only to enable use of the work with that
127 | Major Component, or to implement a Standard Interface for which an
128 | implementation is available to the public in source code form. A
129 | "Major Component", in this context, means a major essential component
130 | (kernel, window system, and so on) of the specific operating system
131 | (if any) on which the executable work runs, or a compiler used to
132 | produce the work, or an object code interpreter used to run it.
133 |
134 | The "Corresponding Source" for a work in object code form means all
135 | the source code needed to generate, install, and (for an executable
136 | work) run the object code and to modify the work, including scripts to
137 | control those activities. However, it does not include the work's
138 | System Libraries, or general-purpose tools or generally available free
139 | programs which are used unmodified in performing those activities but
140 | which are not part of the work. For example, Corresponding Source
141 | includes interface definition files associated with source files for
142 | the work, and the source code for shared libraries and dynamically
143 | linked subprograms that the work is specifically designed to require,
144 | such as by intimate data communication or control flow between those
145 | subprograms and other parts of the work.
146 |
147 | The Corresponding Source need not include anything that users
148 | can regenerate automatically from other parts of the Corresponding
149 | Source.
150 |
151 | The Corresponding Source for a work in source code form is that
152 | same work.
153 |
154 | 2. Basic Permissions.
155 |
156 | All rights granted under this License are granted for the term of
157 | copyright on the Program, and are irrevocable provided the stated
158 | conditions are met. This License explicitly affirms your unlimited
159 | permission to run the unmodified Program. The output from running a
160 | covered work is covered by this License only if the output, given its
161 | content, constitutes a covered work. This License acknowledges your
162 | rights of fair use or other equivalent, as provided by copyright law.
163 |
164 | You may make, run and propagate covered works that you do not
165 | convey, without conditions so long as your license otherwise remains
166 | in force. You may convey covered works to others for the sole purpose
167 | of having them make modifications exclusively for you, or provide you
168 | with facilities for running those works, provided that you comply with
169 | the terms of this License in conveying all material for which you do
170 | not control copyright. Those thus making or running the covered works
171 | for you must do so exclusively on your behalf, under your direction
172 | and control, on terms that prohibit them from making any copies of
173 | your copyrighted material outside their relationship with you.
174 |
175 | Conveying under any other circumstances is permitted solely under
176 | the conditions stated below. Sublicensing is not allowed; section 10
177 | makes it unnecessary.
178 |
179 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
180 |
181 | No covered work shall be deemed part of an effective technological
182 | measure under any applicable law fulfilling obligations under article
183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or
184 | similar laws prohibiting or restricting circumvention of such
185 | measures.
186 |
187 | When you convey a covered work, you waive any legal power to forbid
188 | circumvention of technological measures to the extent such circumvention
189 | is effected by exercising rights under this License with respect to
190 | the covered work, and you disclaim any intention to limit operation or
191 | modification of the work as a means of enforcing, against the work's
192 | users, your or third parties' legal rights to forbid circumvention of
193 | technological measures.
194 |
195 | 4. Conveying Verbatim Copies.
196 |
197 | You may convey verbatim copies of the Program's source code as you
198 | receive it, in any medium, provided that you conspicuously and
199 | appropriately publish on each copy an appropriate copyright notice;
200 | keep intact all notices stating that this License and any
201 | non-permissive terms added in accord with section 7 apply to the code;
202 | keep intact all notices of the absence of any warranty; and give all
203 | recipients a copy of this License along with the Program.
204 |
205 | You may charge any price or no price for each copy that you convey,
206 | and you may offer support or warranty protection for a fee.
207 |
208 | 5. Conveying Modified Source Versions.
209 |
210 | You may convey a work based on the Program, or the modifications to
211 | produce it from the Program, in the form of source code under the
212 | terms of section 4, provided that you also meet all of these conditions:
213 |
214 | a) The work must carry prominent notices stating that you modified
215 | it, and giving a relevant date.
216 |
217 | b) The work must carry prominent notices stating that it is
218 | released under this License and any conditions added under section
219 | 7. This requirement modifies the requirement in section 4 to
220 | "keep intact all notices".
221 |
222 | c) You must license the entire work, as a whole, under this
223 | License to anyone who comes into possession of a copy. This
224 | License will therefore apply, along with any applicable section 7
225 | additional terms, to the whole of the work, and all its parts,
226 | regardless of how they are packaged. This License gives no
227 | permission to license the work in any other way, but it does not
228 | invalidate such permission if you have separately received it.
229 |
230 | d) If the work has interactive user interfaces, each must display
231 | Appropriate Legal Notices; however, if the Program has interactive
232 | interfaces that do not display Appropriate Legal Notices, your
233 | work need not make them do so.
234 |
235 | A compilation of a covered work with other separate and independent
236 | works, which are not by their nature extensions of the covered work,
237 | and which are not combined with it such as to form a larger program,
238 | in or on a volume of a storage or distribution medium, is called an
239 | "aggregate" if the compilation and its resulting copyright are not
240 | used to limit the access or legal rights of the compilation's users
241 | beyond what the individual works permit. Inclusion of a covered work
242 | in an aggregate does not cause this License to apply to the other
243 | parts of the aggregate.
244 |
245 | 6. Conveying Non-Source Forms.
246 |
247 | You may convey a covered work in object code form under the terms
248 | of sections 4 and 5, provided that you also convey the
249 | machine-readable Corresponding Source under the terms of this License,
250 | in one of these ways:
251 |
252 | a) Convey the object code in, or embodied in, a physical product
253 | (including a physical distribution medium), accompanied by the
254 | Corresponding Source fixed on a durable physical medium
255 | customarily used for software interchange.
256 |
257 | b) Convey the object code in, or embodied in, a physical product
258 | (including a physical distribution medium), accompanied by a
259 | written offer, valid for at least three years and valid for as
260 | long as you offer spare parts or customer support for that product
261 | model, to give anyone who possesses the object code either (1) a
262 | copy of the Corresponding Source for all the software in the
263 | product that is covered by this License, on a durable physical
264 | medium customarily used for software interchange, for a price no
265 | more than your reasonable cost of physically performing this
266 | conveying of source, or (2) access to copy the
267 | Corresponding Source from a network server at no charge.
268 |
269 | c) Convey individual copies of the object code with a copy of the
270 | written offer to provide the Corresponding Source. This
271 | alternative is allowed only occasionally and noncommercially, and
272 | only if you received the object code with such an offer, in accord
273 | with subsection 6b.
274 |
275 | d) Convey the object code by offering access from a designated
276 | place (gratis or for a charge), and offer equivalent access to the
277 | Corresponding Source in the same way through the same place at no
278 | further charge. You need not require recipients to copy the
279 | Corresponding Source along with the object code. If the place to
280 | copy the object code is a network server, the Corresponding Source
281 | may be on a different server (operated by you or a third party)
282 | that supports equivalent copying facilities, provided you maintain
283 | clear directions next to the object code saying where to find the
284 | Corresponding Source. Regardless of what server hosts the
285 | Corresponding Source, you remain obligated to ensure that it is
286 | available for as long as needed to satisfy these requirements.
287 |
288 | e) Convey the object code using peer-to-peer transmission, provided
289 | you inform other peers where the object code and Corresponding
290 | Source of the work are being offered to the general public at no
291 | charge under subsection 6d.
292 |
293 | A separable portion of the object code, whose source code is excluded
294 | from the Corresponding Source as a System Library, need not be
295 | included in conveying the object code work.
296 |
297 | A "User Product" is either (1) a "consumer product", which means any
298 | tangible personal property which is normally used for personal, family,
299 | or household purposes, or (2) anything designed or sold for incorporation
300 | into a dwelling. In determining whether a product is a consumer product,
301 | doubtful cases shall be resolved in favor of coverage. For a particular
302 | product received by a particular user, "normally used" refers to a
303 | typical or common use of that class of product, regardless of the status
304 | of the particular user or of the way in which the particular user
305 | actually uses, or expects or is expected to use, the product. A product
306 | is a consumer product regardless of whether the product has substantial
307 | commercial, industrial or non-consumer uses, unless such uses represent
308 | the only significant mode of use of the product.
309 |
310 | "Installation Information" for a User Product means any methods,
311 | procedures, authorization keys, or other information required to install
312 | and execute modified versions of a covered work in that User Product from
313 | a modified version of its Corresponding Source. The information must
314 | suffice to ensure that the continued functioning of the modified object
315 | code is in no case prevented or interfered with solely because
316 | modification has been made.
317 |
318 | If you convey an object code work under this section in, or with, or
319 | specifically for use in, a User Product, and the conveying occurs as
320 | part of a transaction in which the right of possession and use of the
321 | User Product is transferred to the recipient in perpetuity or for a
322 | fixed term (regardless of how the transaction is characterized), the
323 | Corresponding Source conveyed under this section must be accompanied
324 | by the Installation Information. But this requirement does not apply
325 | if neither you nor any third party retains the ability to install
326 | modified object code on the User Product (for example, the work has
327 | been installed in ROM).
328 |
329 | The requirement to provide Installation Information does not include a
330 | requirement to continue to provide support service, warranty, or updates
331 | for a work that has been modified or installed by the recipient, or for
332 | the User Product in which it has been modified or installed. Access to a
333 | network may be denied when the modification itself materially and
334 | adversely affects the operation of the network or violates the rules and
335 | protocols for communication across the network.
336 |
337 | Corresponding Source conveyed, and Installation Information provided,
338 | in accord with this section must be in a format that is publicly
339 | documented (and with an implementation available to the public in
340 | source code form), and must require no special password or key for
341 | unpacking, reading or copying.
342 |
343 | 7. Additional Terms.
344 |
345 | "Additional permissions" are terms that supplement the terms of this
346 | License by making exceptions from one or more of its conditions.
347 | Additional permissions that are applicable to the entire Program shall
348 | be treated as though they were included in this License, to the extent
349 | that they are valid under applicable law. If additional permissions
350 | apply only to part of the Program, that part may be used separately
351 | under those permissions, but the entire Program remains governed by
352 | this License without regard to the additional permissions.
353 |
354 | When you convey a copy of a covered work, you may at your option
355 | remove any additional permissions from that copy, or from any part of
356 | it. (Additional permissions may be written to require their own
357 | removal in certain cases when you modify the work.) You may place
358 | additional permissions on material, added by you to a covered work,
359 | for which you have or can give appropriate copyright permission.
360 |
361 | Notwithstanding any other provision of this License, for material you
362 | add to a covered work, you may (if authorized by the copyright holders of
363 | that material) supplement the terms of this License with terms:
364 |
365 | a) Disclaiming warranty or limiting liability differently from the
366 | terms of sections 15 and 16 of this License; or
367 |
368 | b) Requiring preservation of specified reasonable legal notices or
369 | author attributions in that material or in the Appropriate Legal
370 | Notices displayed by works containing it; or
371 |
372 | c) Prohibiting misrepresentation of the origin of that material, or
373 | requiring that modified versions of such material be marked in
374 | reasonable ways as different from the original version; or
375 |
376 | d) Limiting the use for publicity purposes of names of licensors or
377 | authors of the material; or
378 |
379 | e) Declining to grant rights under trademark law for use of some
380 | trade names, trademarks, or service marks; or
381 |
382 | f) Requiring indemnification of licensors and authors of that
383 | material by anyone who conveys the material (or modified versions of
384 | it) with contractual assumptions of liability to the recipient, for
385 | any liability that these contractual assumptions directly impose on
386 | those licensors and authors.
387 |
388 | All other non-permissive additional terms are considered "further
389 | restrictions" within the meaning of section 10. If the Program as you
390 | received it, or any part of it, contains a notice stating that it is
391 | governed by this License along with a term that is a further
392 | restriction, you may remove that term. If a license document contains
393 | a further restriction but permits relicensing or conveying under this
394 | License, you may add to a covered work material governed by the terms
395 | of that license document, provided that the further restriction does
396 | not survive such relicensing or conveying.
397 |
398 | If you add terms to a covered work in accord with this section, you
399 | must place, in the relevant source files, a statement of the
400 | additional terms that apply to those files, or a notice indicating
401 | where to find the applicable terms.
402 |
403 | Additional terms, permissive or non-permissive, may be stated in the
404 | form of a separately written license, or stated as exceptions;
405 | the above requirements apply either way.
406 |
407 | 8. Termination.
408 |
409 | You may not propagate or modify a covered work except as expressly
410 | provided under this License. Any attempt otherwise to propagate or
411 | modify it is void, and will automatically terminate your rights under
412 | this License (including any patent licenses granted under the third
413 | paragraph of section 11).
414 |
415 | However, if you cease all violation of this License, then your
416 | license from a particular copyright holder is reinstated (a)
417 | provisionally, unless and until the copyright holder explicitly and
418 | finally terminates your license, and (b) permanently, if the copyright
419 | holder fails to notify you of the violation by some reasonable means
420 | prior to 60 days after the cessation.
421 |
422 | Moreover, your license from a particular copyright holder is
423 | reinstated permanently if the copyright holder notifies you of the
424 | violation by some reasonable means, this is the first time you have
425 | received notice of violation of this License (for any work) from that
426 | copyright holder, and you cure the violation prior to 30 days after
427 | your receipt of the notice.
428 |
429 | Termination of your rights under this section does not terminate the
430 | licenses of parties who have received copies or rights from you under
431 | this License. If your rights have been terminated and not permanently
432 | reinstated, you do not qualify to receive new licenses for the same
433 | material under section 10.
434 |
435 | 9. Acceptance Not Required for Having Copies.
436 |
437 | You are not required to accept this License in order to receive or
438 | run a copy of the Program. Ancillary propagation of a covered work
439 | occurring solely as a consequence of using peer-to-peer transmission
440 | to receive a copy likewise does not require acceptance. However,
441 | nothing other than this License grants you permission to propagate or
442 | modify any covered work. These actions infringe copyright if you do
443 | not accept this License. Therefore, by modifying or propagating a
444 | covered work, you indicate your acceptance of this License to do so.
445 |
446 | 10. Automatic Licensing of Downstream Recipients.
447 |
448 | Each time you convey a covered work, the recipient automatically
449 | receives a license from the original licensors, to run, modify and
450 | propagate that work, subject to this License. You are not responsible
451 | for enforcing compliance by third parties with this License.
452 |
453 | An "entity transaction" is a transaction transferring control of an
454 | organization, or substantially all assets of one, or subdividing an
455 | organization, or merging organizations. If propagation of a covered
456 | work results from an entity transaction, each party to that
457 | transaction who receives a copy of the work also receives whatever
458 | licenses to the work the party's predecessor in interest had or could
459 | give under the previous paragraph, plus a right to possession of the
460 | Corresponding Source of the work from the predecessor in interest, if
461 | the predecessor has it or can get it with reasonable efforts.
462 |
463 | You may not impose any further restrictions on the exercise of the
464 | rights granted or affirmed under this License. For example, you may
465 | not impose a license fee, royalty, or other charge for exercise of
466 | rights granted under this License, and you may not initiate litigation
467 | (including a cross-claim or counterclaim in a lawsuit) alleging that
468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
470 |
471 | 11. Patents.
472 |
473 | A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based. The
475 | work thus licensed is called the contributor's "contributor version".
476 |
477 | A contributor's "essential patent claims" are all patent claims
478 | owned or controlled by the contributor, whether already acquired or
479 | hereafter acquired, that would be infringed by some manner, permitted
480 | by this License, of making, using, or selling its contributor version,
481 | but do not include claims that would be infringed only as a
482 | consequence of further modification of the contributor version. For
483 | purposes of this definition, "control" includes the right to grant
484 | patent sublicenses in a manner consistent with the requirements of
485 | this License.
486 |
487 | Each contributor grants you a non-exclusive, worldwide, royalty-free
488 | patent license under the contributor's essential patent claims, to
489 | make, use, sell, offer for sale, import and otherwise run, modify and
490 | propagate the contents of its contributor version.
491 |
492 | In the following three paragraphs, a "patent license" is any express
493 | agreement or commitment, however denominated, not to enforce a patent
494 | (such as an express permission to practice a patent or covenant not to
495 | sue for patent infringement). To "grant" such a patent license to a
496 | party means to make such an agreement or commitment not to enforce a
497 | patent against the party.
498 |
499 | If you convey a covered work, knowingly relying on a patent license,
500 | and the Corresponding Source of the work is not available for anyone
501 | to copy, free of charge and under the terms of this License, through a
502 | publicly available network server or other readily accessible means,
503 | then you must either (1) cause the Corresponding Source to be so
504 | available, or (2) arrange to deprive yourself of the benefit of the
505 | patent license for this particular work, or (3) arrange, in a manner
506 | consistent with the requirements of this License, to extend the patent
507 | license to downstream recipients. "Knowingly relying" means you have
508 | actual knowledge that, but for the patent license, your conveying the
509 | covered work in a country, or your recipient's use of the covered work
510 | in a country, would infringe one or more identifiable patents in that
511 | country that you have reason to believe are valid.
512 |
513 | If, pursuant to or in connection with a single transaction or
514 | arrangement, you convey, or propagate by procuring conveyance of, a
515 | covered work, and grant a patent license to some of the parties
516 | receiving the covered work authorizing them to use, propagate, modify
517 | or convey a specific copy of the covered work, then the patent license
518 | you grant is automatically extended to all recipients of the covered
519 | work and works based on it.
520 |
521 | A patent license is "discriminatory" if it does not include within
522 | the scope of its coverage, prohibits the exercise of, or is
523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License. You may not convey a covered
525 | work if you are a party to an arrangement with a third party that is
526 | in the business of distributing software, under which you make payment
527 | to the third party based on the extent of your activity of conveying
528 | the work, and under which the third party grants, to any of the
529 | parties who would receive the covered work from you, a discriminatory
530 | patent license (a) in connection with copies of the covered work
531 | conveyed by you (or copies made from those copies), or (b) primarily
532 | for and in connection with specific products or compilations that
533 | contain the covered work, unless you entered into that arrangement,
534 | or that patent license was granted, prior to 28 March 2007.
535 |
536 | Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 |
540 | 12. No Surrender of Others' Freedom.
541 |
542 | If conditions are imposed on you (whether by court order, agreement or
543 | otherwise) that contradict the conditions of this License, they do not
544 | excuse you from the conditions of this License. If you cannot convey a
545 | covered work so as to satisfy simultaneously your obligations under this
546 | License and any other pertinent obligations, then as a consequence you may
547 | not convey it at all. For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 |
552 | 13. Use with the GNU Affero General Public License.
553 |
554 | Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work. The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 |
563 | 14. Revised Versions of this License.
564 |
565 | The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time. Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 |
570 | Each version is given a distinguishing version number. If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation. If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 |
579 | If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 |
584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 | {one line to give the program's name and a brief idea of what it does.}
635 | Copyright (C) {year} {name of author}
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | {project} Copyright (C) {year} {fullname}
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
--------------------------------------------------------------------------------