#region netDxf, Copyright(C) 2013 Daniel Carvajal, Licensed under LGPL.
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// netDxf library
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// Copyright (C) 2013 Daniel Carvajal (haplokuon@gmail.com)
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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namespace netDxf.Entities
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{
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/// <summary>
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/// Represents a ray <see cref="EntityObject">entity</see>.
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/// </summary>
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/// <remarks>A ray is a line in three-dimensional space that starts in the specified origin and extends to infinity.</remarks>
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public class Ray :
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EntityObject
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{
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#region private fields
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private Vector3 origin;
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private Vector3 direction;
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#endregion
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#region constructors
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/// <summary>
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/// Initializes a new instance of the <c>Ray</c> class.
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/// </summary>
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public Ray()
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: this(Vector3.Zero, Vector3.UnitX)
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{
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}
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/// <summary>
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/// Initializes a new instance of the <c>Ray</c> class.
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/// </summary>
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/// <param name="origin">Ray <see cref="Vector2">start point.</see></param>
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/// <param name="direction">Ray <see cref="Vector2">end point.</see></param>
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public Ray(Vector2 origin, Vector2 direction)
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: this(new Vector3(origin.X, origin.Y, 0.0), new Vector3(direction.X, direction.Y, 0.0))
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{
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}
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/// <summary>
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/// Initializes a new instance of the <c>Ray</c> class.
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/// </summary>
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/// <param name="origin">Ray start <see cref="Vector3">point.</see></param>
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/// <param name="direction">Ray end <see cref="Vector3">point.</see></param>
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public Ray(Vector3 origin, Vector3 direction)
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: base(EntityType.Ray, DxfObjectCode.Ray)
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{
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this.origin = origin;
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this.direction = direction;
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this.direction.Normalize();
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}
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#endregion
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#region public properties
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/// <summary>
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/// Gets or sets the ray <see cref="netDxf.Vector3">origin</see>.
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/// </summary>
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public Vector3 Origin
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{
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get { return this.origin; }
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set { this.origin = value; }
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}
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/// <summary>
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/// Gets or sets the ray <see cref="netDxf.Vector3">direction</see>.
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/// </summary>
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public Vector3 Direction
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{
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get { return this.direction; }
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set
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{
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if (value == Vector3.Zero)
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throw new ArgumentNullException("value", "The direction can not be the zero vector.");
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this.direction = value;
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this.direction.Normalize();
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}
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}
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#endregion
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#region overrides
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/// <summary>
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/// Creates a new Ray that is a copy of the current instance.
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/// </summary>
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/// <returns>A new Ray that is a copy of this instance.</returns>
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public override object Clone()
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{
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return new Ray
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{
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//EntityObject properties
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Color = this.color,
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Layer = this.layer,
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LineType = this.lineType,
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Lineweight = this.lineweight,
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LineTypeScale = this.lineTypeScale,
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Normal = this.normal,
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XData = this.xData,
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//Ray properties
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Origin = this.origin,
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Direction = this.direction,
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};
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}
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#endregion
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}
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}
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