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@@ -42,6 +42,7 @@ Organizations or use cases that fall under the following conditions may receive | |
| For more information, please contact Signature Group, LLC at this address: [email protected] | ||
| */ | ||
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| using System; | ||
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| namespace CoordinateSharp | ||
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| /* | ||
| CoordinateSharp is a .NET standard library that is intended to ease geographic coordinate | ||
| format conversions and location based celestial calculations. | ||
| https://github.com/Tronald/CoordinateSharp | ||
| Many celestial formulas in this library are based on Jean Meeus's | ||
| Astronomical Algorithms (2nd Edition). Comments that reference only a chapter | ||
| are referring to this work. | ||
| License | ||
| CoordinateSharp is split licensed and may be licensed under the GNU Affero General Public License version 3 or a commercial use license as stated. | ||
| Copyright (C) 2019, Signature Group, LLC | ||
| This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License version 3 | ||
| as published by the Free Software Foundation with the addition of the following permission added to Section 15 as permitted in Section 7(a): | ||
| FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY Signature Group, LLC. Signature Group, LLC DISCLAIMS THE WARRANTY OF | ||
| NON INFRINGEMENT OF THIRD PARTY RIGHTS. | ||
| This program 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 this program; if not, see http://www.gnu.org/licenses or write to the | ||
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA, 02110-1301 USA, or download the license from the following URL: | ||
| https://www.gnu.org/licenses/agpl-3.0.html | ||
| The interactive user interfaces in modified source and object code versions of this program must display Appropriate Legal Notices, | ||
| as required under Section 5 of the GNU Affero General Public License. | ||
| 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 CoordinateSharp software without disclosing the source code of your own applications. | ||
| These activities include: offering paid services to customers as an ASP, on the fly location based calculations in a web application, | ||
| or shipping CoordinateSharp with a closed source product. | ||
| Organizations or use cases that fall under the following conditions may receive a free commercial use license upon request. | ||
| -Department of Defense | ||
| -Department of Homeland Security | ||
| -Open source contributors to this library | ||
| -Scholarly or scientific uses on a case by case basis. | ||
| -Emergency response / management uses on a case by case basis. | ||
| For more information, please contact Signature Group, LLC at this address: [email protected] | ||
| */ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
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| namespace CoordinateSharp | ||
| { | ||
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| public partial class GeoFence | ||
| { | ||
| /// <summary> | ||
| /// GenFence subclass used for continuous shape drawing | ||
| /// </summary> | ||
| [Serializable] | ||
| public class Drawer | ||
| { | ||
| private Coordinate initialCoordinate; //This is the intial and always the last drawn point in the shape. | ||
| private Coordinate referenceCoordinate; //This coordinate is referenced for final bearing calculations | ||
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| private double bearing; | ||
| private double finalBearing; | ||
| private Shape shape; | ||
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| private List<Coordinate> points = new List<Coordinate>(); //Stores all drawn points | ||
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| /// <summary> | ||
| /// Initializes the GeoFence Drawer with an initial point a bearing/facing direction. | ||
| /// </summary> | ||
| /// <param name="coordinate">Starting Coordinate</param> | ||
| /// <param name="earthShape">Earth Shape for calculations</param> | ||
| /// <param name="initialBearing">Initial bearing or direction facing</param> | ||
| /// <example> | ||
| /// The following example creates a GeoFence Drawer. | ||
| /// <code> | ||
| /// //Create a coordinate with EagerLoading off for efficiency during drawing. | ||
| /// Coordinate c = new Coordinate(31.65, -84.02, new EagerLoad(false)); | ||
| /// | ||
| /// //Create the GeoFence Drawer, specifying an ellipsoidal earth | ||
| /// //shape with a start bearing / direction faced of 0 degrees. | ||
| /// GeoFence.Drawer gd = new GeoFence.Drawer(c, Shape.Ellipsoid, 0); | ||
| /// </code> | ||
| /// </example> | ||
| public Drawer(Coordinate coordinate, Shape earthShape, double initialBearing) | ||
| { | ||
| //Create initial coordinate to move. | ||
| Coordinate nc = new Coordinate(coordinate.Latitude.ToDouble(), coordinate.Longitude.ToDouble(), coordinate.GeoDate, coordinate.EagerLoadSettings); | ||
| nc.equatorial_radius = coordinate.equatorial_radius; | ||
| nc.inverse_flattening = coordinate.inverse_flattening; | ||
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| //Create first point to add to points list. | ||
| Coordinate firstPoint= new Coordinate(coordinate.Latitude.ToDouble(), coordinate.Longitude.ToDouble(), coordinate.GeoDate, coordinate.EagerLoadSettings); | ||
| nc.equatorial_radius = coordinate.equatorial_radius; | ||
| nc.inverse_flattening = coordinate.inverse_flattening; | ||
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| points.Add(firstPoint); | ||
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| shape = earthShape; | ||
| initialCoordinate = nc; | ||
| bearing = (initialBearing) % 360; //normalize | ||
| finalBearing = (initialBearing) % 360; //normailza | ||
| } | ||
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| /// <summary> | ||
| /// Draws line from the initial or last drawn point. | ||
| /// </summary> | ||
| /// <param name="d">Distance</param> | ||
| /// <param name="bearingChange">Bearing change in degrees</param> | ||
| /// <example> | ||
| /// The following example draws a 5 km square in the USA. | ||
| /// <code> | ||
| /// //Create a coordinate with EagerLoading off for efficiency during drawing. | ||
| /// Coordinate c = new Coordinate(31.65, -84.02, new EagerLoad(false)); | ||
| /// | ||
| /// //Create the GeoFence Drawer, specifying an ellipsoidal earth | ||
| /// //shape with a start bearing / direction faced of 0 degrees. | ||
| /// GeoFence.Drawer gd = new GeoFence.Drawer(c, Shape.Ellipsoid, 0); | ||
| /// | ||
| /// //Draw the first line using the initial bearing (0 means no change in heading) | ||
| /// gd.Draw(new Distance(5), 0); | ||
| /// //Draw the next to line by changing 90 degrees at each point. | ||
| /// gd.Draw(new Distance(5), 90); | ||
| /// gd.Draw(new Distance(5), 90); | ||
| /// //Close the shape by drawing from the line end point to the initial coordinate. | ||
| /// gd.Close(); | ||
| /// </code> | ||
| /// </example> | ||
| public void Draw(Distance d, double bearingChange) | ||
| { | ||
| //Store reference point for reverse bearing lookup | ||
| referenceCoordinate = new Coordinate(initialCoordinate.Latitude.ToDouble(), initialCoordinate.Longitude.ToDouble(), new EagerLoad(false)); | ||
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| //Get new bearing | ||
| //This formula will account for bearing changes of distance and offset the next movement | ||
| bearing = (finalBearing - bearing + bearing + bearingChange) % 360; | ||
| initialCoordinate.Move(d, bearing, shape); | ||
| finalBearing = (new Distance(initialCoordinate, referenceCoordinate, shape).Bearing + 180) % 360; | ||
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| Coordinate nc = new Coordinate(initialCoordinate.Latitude.ToDouble(), initialCoordinate.Longitude.ToDouble(), initialCoordinate.GeoDate, initialCoordinate.EagerLoadSettings); | ||
| nc.equatorial_radius = initialCoordinate.equatorial_radius; | ||
| nc.inverse_flattening = initialCoordinate.inverse_flattening; | ||
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| points.Add(nc); | ||
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| } | ||
| /// <summary> | ||
| /// Draws a line to the Drawer start point (closes the shape). | ||
| /// </summary> | ||
| public void Close() | ||
| { | ||
| Coordinate c = points.First(); | ||
| Coordinate nc = new Coordinate(c.Latitude.ToDouble(), c.Longitude.ToDouble(), c.GeoDate, c.EagerLoadSettings); | ||
| nc.equatorial_radius = c.equatorial_radius; | ||
| nc.inverse_flattening = c.inverse_flattening; | ||
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| points.Add(nc); | ||
| } | ||
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| /// <summary> | ||
| /// Get's the last point's ending Coordinate. | ||
| /// </summary> | ||
| public Coordinate Last | ||
| { | ||
| get | ||
| { | ||
| return points.Last(); | ||
| } | ||
| } | ||
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| /// <summary> | ||
| /// Gets all drawn points (the shape drawn). | ||
| /// </summary> | ||
| public List<Coordinate> Points | ||
| { | ||
| get { return points; } | ||
| } | ||
| } | ||
| } | ||
| } |
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