namespace Yw.WinFrmUI.HydroL3d
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{
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/// <summary>
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/// 水库
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/// </summary>
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public class Reservoir : Source
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{
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/// <summary>
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/// 长度
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/// </summary>
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public float? Length { get; set; }
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/// <summary>
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/// 宽度
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/// </summary>
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public float? Width { get; set; }
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/// <summary>
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/// 高度
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/// </summary>
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public float? Height { get; set; }
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/// <summary>
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/// 填充颜色
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/// </summary>
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public Color? FillColor { get; set; }
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/// <summary>
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/// 悬停长度
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/// </summary>
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public float? HoveredLength { get; set; }
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/// <summary>
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/// 悬停宽度
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/// </summary>
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public float? HoveredWidth { get; set; }
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/// <summary>
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/// 悬停高度
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/// </summary>
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public float? HoveredHeight { get; set; }
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/// <summary>
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/// 悬停填充颜色
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/// </summary>
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public Color? HoveredFillColor { get; set; }
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/// <summary>
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/// 选择长度
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/// </summary>
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public float? SelectedLength { get; set; }
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/// <summary>
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/// 选择宽度
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/// </summary>
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public float? SelectedWidth { get; set; }
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/// <summary>
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/// 选择高度
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/// </summary>
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public float? SelectedHeight { get; set; }
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/// <summary>
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/// 选择填充颜色
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/// </summary>
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public Color? SelectedFillColor { get; set; }
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//包围盒
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private BoundingBox3d _boundingBox = null;
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//获取包围盒
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private BoundingBox3d GetBoundingBox()
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{
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var length = this.Length.HasValue ? this.Length.Value : CacheHelper.HydroL3d.Reservoir.Size.Length;
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var width = this.Width.HasValue ? this.Width.Value : CacheHelper.HydroL3d.Reservoir.Size.Width;
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var height = this.Height.HasValue ? this.Height.Value : CacheHelper.HydroL3d.Reservoir.Size.Height;
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return new BoundingBox3d()
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{
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Min = new Point3d()
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{
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X = this.Position.X - length / 2f,
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Y = this.Position.Y - width / 2f,
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Z = this.Position.Z - height / 2f
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},
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Max = new Point3d()
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{
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X = this.Position.X + length / 2f,
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Y = this.Position.Y + width / 2f,
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Z = this.Position.Z + height / 2f
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}
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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 override void Draw(SharpGL.OpenGL gl)
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{
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_boundingBox = GetBoundingBox();
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if (this.Hovered)
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{
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var length = this.HoveredLength.HasValue ? this.HoveredLength.Value : CacheHelper.HydroL3d.Reservoir.HoveredSize.Length;
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var width = this.HoveredWidth.HasValue ? this.HoveredWidth.Value : CacheHelper.HydroL3d.Reservoir.HoveredSize.Width;
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var height = this.HoveredHeight.HasValue ? this.HoveredHeight.Value : CacheHelper.HydroL3d.Reservoir.HoveredSize.Height;
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var fillColor = this.HoveredFillColor.HasValue ? this.HoveredFillColor.Value : ColorTranslator.FromHtml(CacheHelper.HydroL3d.Reservoir.HoveredFill.Color);
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DrawEllipsoid(gl, length / 2f, width / 2f, height / 2f, fillColor);
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}
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else if (this.Selected)
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{
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var length = this.SelectedLength.HasValue ? this.SelectedLength.Value : CacheHelper.HydroL3d.Reservoir.SelectedSize.Length;
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var width = this.SelectedWidth.HasValue ? this.SelectedWidth.Value : CacheHelper.HydroL3d.Reservoir.SelectedSize.Width;
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var height = this.SelectedHeight.HasValue ? this.SelectedHeight.Value : CacheHelper.HydroL3d.Reservoir.SelectedSize.Height;
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var fillColor = this.SelectedFillColor.HasValue ? this.SelectedFillColor.Value : ColorTranslator.FromHtml(CacheHelper.HydroL3d.Reservoir.SelectedFill.Color);
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DrawEllipsoid(gl, length / 2f, width / 2f, height / 2f, fillColor);
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}
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else
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{
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var length = this.Length.HasValue ? this.Length.Value : CacheHelper.HydroL3d.Reservoir.Size.Length;
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var width = this.Width.HasValue ? this.Width.Value : CacheHelper.HydroL3d.Reservoir.Size.Width;
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var height = this.Height.HasValue ? this.Height.Value : CacheHelper.HydroL3d.Reservoir.Size.Height;
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var fillColor = this.FillColor.HasValue ? this.FillColor.Value : ColorTranslator.FromHtml(CacheHelper.HydroL3d.Reservoir.Fill.Color);
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DrawEllipsoid(gl, length / 2f, width / 2f, height / 2f, fillColor);
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}
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}
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//绘制椭球体
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private void DrawEllipsoid(OpenGL gl, float halfLength, float halfWidth, float halfHeight, Color fillColor)
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{
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const int stacks = 32;
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const int slices = 32;
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// 设置椭球体的中心点坐标
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float x0 = this.Position.X;
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float y0 = this.Position.Y;
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float z0 = this.Position.Z;
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// 设置椭球体的半轴长
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float a = halfLength;
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float b = halfWidth;
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float c = halfHeight;
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gl.Color(fillColor.R, fillColor.G, fillColor.B);
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for (int i = 0; i < stacks; i++)
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{
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float lat0 = ((float)i / (float)stacks - 0.5f) * (float)MathF.PI;
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float z0_ = (float)MathF.Sin(lat0);
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float zr0 = (float)MathF.Cos(lat0);
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float lat1 = ((float)(i + 1) / (float)stacks - 0.5f) * (float)MathF.PI;
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float z1_ = (float)MathF.Sin(lat1);
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float zr1 = (float)MathF.Cos(lat1);
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gl.Begin(SharpGL.OpenGL.GL_TRIANGLE_STRIP);
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for (int j = 0; j <= slices; j++)
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{
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float lng = ((float)j / (float)slices) * 2.0f * (float)MathF.PI;
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// 根据椭球体方程计算顶点坐标并加上中心点坐标
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float x = a * (float)MathF.Cos(lng) * zr0 + x0;
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float y = b * (float)MathF.Sin(lng) * zr0 + y0;
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float z = c * z0_ + z0;
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gl.Color(1.0f, 0.0f, 0.0f);
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gl.Vertex(x, y, z);
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x = a * (float)MathF.Cos(lng) * zr1 + x0;
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y = b * (float)MathF.Sin(lng) * zr1 + y0;
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z = c * z1_ + z0;
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gl.Color(1.0f, 0.0f, 0.0f);
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gl.Vertex(x, y, z);
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}
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gl.End();
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}
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}
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/// <summary>
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/// 包含
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/// </summary>
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public override bool Contains(Point3d pt)
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{
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if (_boundingBox == null)
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{
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return false;
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}
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return _boundingBox.Contains(pt);
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}
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}
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}
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