///<summary>贝塞尔平滑插点计算，X方向</summary>
private Point3D[,] insertXPoint(Point3D[,] allpoint, int insertcount) //x方向插点
{
// bezier平滑插值
Point[] ap, cp1, cp2;
Point calpoint;
Point3D[,] resultpoint = new Point3D[(allpoint.GetLength(0) - 1) * (insertcount + 1) + 1, allpoint.GetLength(1)];
Point[] cp = new Point[4];
for (int i = 0; i < allpoint.GetLength(1); i++)
{
ap = new Point[allpoint.GetLength(0)];
for (int j = 0; j < allpoint.GetLength(0); j++)
{
ap[j].X = allpoint[j, i].X;
ap[j].Y = allpoint[j, i].Y;
}
MyGeometryHelper.GetCurveControlPoints(ap, out cp1, out cp2);
for (int j = 0; j < allpoint.GetLength(0) - 1; j++)
{
resultpoint[j * (insertcount + 1), i] = allpoint[j, i]; //原有的点
cp[0] = ap[j]; cp[1] = cp1[j]; cp[2] = cp2[j]; cp[3] = ap[j + 1];
for (int k = 0; k < insertcount; k++)
{
calpoint = MyGeometryHelper.PointOnBezier(cp, 1.0 / (insertcount + 1) * (k + 1));
resultpoint[j * (insertcount + 1) + 1 + k, i] = new Point3D(calpoint.X, calpoint.Y, allpoint[j, i].Z); //插入的点
}
}
resultpoint[(allpoint.GetLength(0) - 1) * (insertcount + 1), i] = allpoint[allpoint.GetLength(0) - 1, i]; //原有的终点
}
return(resultpoint);
}
public MyModel(Game game, int id, Model model, Vector3 position, MyCamera camera) : base(game)
{
this.Id = id;
this.model = model;
this.Position = position;
this.changeMatrix = Matrix.Identity;
this.Rotation = Vector3.Zero;
this.Scale = Vector3.One;
this.camera = camera;
this.boundingSphere = MyGeometryHelper.GetBoundingSphere(model);
}
/// <summary>
/// 绘图方法
/// </summary>
/// <param name="gameTime">时间</param>
public override void Draw(GameTime gameTime)
{
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
this.Game.GraphicsDevice.DrawUserPrimitives <VertexPositionColor>(PrimitiveType.LineList, lineData, 0, lineData.Length / 2, VertexPositionColor.VertexDeclaration);
if (roadData != null && roadData.Length != 0)
{
this.Game.GraphicsDevice.DrawUserPrimitives <VertexPositionColor>(PrimitiveType.TriangleList, roadData, 0, roadData.Length / 3, VertexPositionColor.VertexDeclaration);
}
if (wallData != null && wallData.Length != 0)
{
this.Game.GraphicsDevice.DrawUserPrimitives <VertexPositionColor>(PrimitiveType.TriangleList, wallData, 0, wallData.Length / 3, VertexPositionColor.VertexDeclaration);
}
MyGeometryHelper.FillRect(this.Game, graphics, new Vector2(start.X * 10, start.Y * 10), new Vector2(10, 10), Color.Green);
MyGeometryHelper.FillRect(this.Game, graphics, new Vector2(end.X * 10, end.Y * 10), new Vector2(10, 10), Color.Orange);
}
base.Draw(gameTime);
}