netDxf/Entities/Mesh.cs

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#region netDxf, Copyright(C) 2014 Daniel Carvajal, Licensed under LGPL.

//                        netDxf library
// Copyright (C) 2014 Daniel Carvajal (haplokuon@gmail.com)
// 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 

#endregion

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using netDxf.Tables;

namespace netDxf.Entities
{
    /// <summary>
    /// Represents a mesh <see cref="EntityObject">entity</see>.
    /// </summary>
    /// <remarks>
    /// Use this entity to overcome the limitations of the PolyfaceMesh, but, keep in mind that this entity was first introduced in AutoCad 2010.<br/>
    /// The maximum number of faces a mesh can have is 16000000 (16 millions).
    /// </remarks>
    public class Mesh :
        EntityObject
    {
        #region private fields

        private const int MaxFaces = 16000000;
        private readonly List<Vector3> vertexes;
        private readonly List<int[]> faces;
        private readonly List<MeshEdge> edges;
        private byte subdivisionLevel;

        #endregion

        #region constructors

        /// <summary>
        /// Initializes a new instance of the <c>Mesh</c> class.
        /// </summary>
        /// <param name="vertexes">Mesh vertex list.</param>
        /// <param name="faces">Mesh faces list.</param>
        /// <param name="edges">Mesh edges list, this parameter is optional and only really useful when it is required to assign creases values to edges.</param>
        public Mesh(List<Vector3> vertexes, List<int[]> faces, List<MeshEdge> edges = null)
            : base(EntityType.Mesh, DxfObjectCode.Mesh)
        {