namespace Yw.WinFrmUI.HydroL3d
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{
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/// <summary>
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///
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/// </summary>
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public partial class Network
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{
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/// <summary>
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/// 判断是否存在
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/// </summary>
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public bool IsExist(string id)
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{
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return _parters.Exists(x => x.Id == id);
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}
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/// <summary>
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/// 获取包围盒
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/// </summary>
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public BoundingBox3d GetBoundingBox()
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{
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var minX = float.MaxValue;
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var minY = float.MaxValue;
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var minZ = float.MaxValue;
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var maxX = float.MinValue;
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var maxY = float.MinValue;
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var maxZ = float.MinValue;
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foreach (var node in this.Nodes)
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{
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minX = Math.Min(minX, node.Position.X);
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minY = Math.Min(minY, node.Position.Y);
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minZ = Math.Min(minZ, node.Position.Z);
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maxX = Math.Max(maxX, node.Position.X);
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maxY = Math.Max(maxY, node.Position.Y);
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maxZ = Math.Max(maxZ, node.Position.Z);
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}
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return new BoundingBox3d()
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{
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Min = new Point3d(minX, minY, minZ),
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Max = new Point3d(maxX, maxY, maxZ)
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};
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}
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/// <summary>
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/// 获取中心点
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/// </summary>
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public Point3d GetCenter(BoundingBox3d boundingBox)
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{
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if (boundingBox == null)
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{
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boundingBox = GetBoundingBox();
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}
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return boundingBox.GetCenter();
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}
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/// <summary>
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/// 获取转换
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/// </summary>
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public Point3d GetTranslation(BoundingBox3d boundingBox, Point3d center)
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{
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if (boundingBox == null)
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{
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boundingBox = GetBoundingBox();
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}
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if (center == null)
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{
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center = GetCenter(boundingBox);
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}
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return new Point3d()
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{
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X = -center.X,
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Y = -center.Y,
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Z = -center.Z
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};
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}
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/// <summary>
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/// 获取旋转信息
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/// </summary>
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/// <returns></returns>
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public Point3d GetRotation()
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{
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return new Point3d();
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}
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/// <summary>
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/// 缩放
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/// </summary>
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public Point3d GetScale()
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{
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return new Point3d() { X = 1f, Y = 1f, Z = 1f };
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}
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/// <summary>
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/// 获取观察信息
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/// </summary>
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public LookAt3d GetLookAt(BoundingBox3d boundingBox, Point3d center)
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{
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if (boundingBox == null)
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{
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boundingBox = GetBoundingBox();
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}
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if (center == null)
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{
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center = boundingBox.GetCenter();
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}
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return new LookAt3d()
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{
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Eye = new Point3d(0, 0, 3 * boundingBox.Max.Z),
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Center = new Point3d(0, 0, 0),
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Up = new Point3d(0, 1, 0)
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};
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}
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/// <summary>
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/// 获取透视信息
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/// </summary>
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public Perspective3d GetPerspective(BoundingBox3d boundingBox, Point3d center, LookAt3d lookAt, SharpGL.OpenGLControl openglControl = null)
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{
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if (boundingBox == null)
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{
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boundingBox = GetBoundingBox();
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}
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if (center == null)
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{
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center = boundingBox.GetCenter();
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}
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if (lookAt == null)
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{
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lookAt = GetLookAt(boundingBox, center);
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}
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var minDistance = float.MaxValue;
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var maxDistance = float.MinValue;
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foreach (var node in this.Nodes)
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{
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var distance = lookAt.Eye.Distance(node.Position);
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minDistance = MathF.Min(minDistance, distance);
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maxDistance = MathF.Max(maxDistance, distance);
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}
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var fovy = 45f;
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var aspect = 1.25f;
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if (openglControl != null)
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{
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aspect = (float)openglControl.Width / (float)openglControl.Height;
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}
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var bufferFactor = 1.2f;
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var near = minDistance / 100f;
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var far = maxDistance * 5f * bufferFactor;
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return new Perspective3d()
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{
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Fovy = fovy,
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Aspect = aspect,
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Near = near,
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Far = far
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};
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}
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/// <summary>
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/// 获取参数
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/// </summary>
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/// <returns></returns>
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public NetworkParas GetParas(SharpGL.OpenGLControl openglControl = null)
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{
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var boundingBox = GetBoundingBox();
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var center = boundingBox.GetCenter();
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var translation = GetTranslation(boundingBox, center);
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var scale = GetScale();
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var rotation = GetRotation();
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var lookAt = GetLookAt(boundingBox, center);
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var perspective = GetPerspective(boundingBox, center, lookAt, openglControl);
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return new NetworkParas()
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{
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BoundingBox = boundingBox,
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Ceneter = center,
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Translation = translation,
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Rotation = rotation,
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Scale = scale,
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LookAt = lookAt,
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Perspective = perspective,
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};
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}
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/// <summary>
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/// 绘制
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/// </summary>
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public void Draw(SharpGL.OpenGL gl)
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{
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foreach (var link in this.Links)
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{
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link.Draw(gl);
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}
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foreach (var node in this.Nodes)
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{
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node.Draw(gl);
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}
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}
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/// <summary>
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/// 选择
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/// </summary>
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public List<Parter> Select(Point3d pt)
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{
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int i = 0;
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foreach (var node in this.Nodes)
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{
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node.Selected = node.Contains(pt);
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if (node.Selected)
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{
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i++;
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}
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}
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if (i > 0)
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{
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this.Links.ForEach(x => x.Selected = false);
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return this.Nodes.Where(x => x.Selected).Select(x => x as Parter).ToList();
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}
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foreach (var link in this.Links)
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{
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link.Selected = link.Contains(pt);
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}
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return this.Links.Where(x => x.Selected).Select(x => x as Parter).ToList();
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}
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/// <summary>
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/// 悬停
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/// </summary>
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public List<Parter> Hover(Point3d pt)
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{
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int i = 0;
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foreach (var node in this.Nodes)
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{
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node.Hovered = node.Contains(pt);
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if (node.Hovered)
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{
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i++;
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}
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}
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if (i > 0)
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{
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this.Links.ForEach(x => x.Hovered = false);
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return this.Nodes.Where(x => x.Hovered).Select(x => x as Parter).ToList();
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}
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foreach (var link in this.Links)
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{
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link.Hovered = link.Contains(pt);
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}
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return this.Links.Where(x => x.Hovered).Select(x => x as Parter).ToList();
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}
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}
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}
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