/// <summary>
/// Loads this class with data from a primitive.
/// </summary>
/// <param name="graphicsDevice">The graphicsDevice device.</param>
/// <param name="primitive">The primitive to load.</param>
public void FromPrimitive(GraphicsDevice graphicsDevice, Geometric primitive)
{
List <Mesh> meshes = new List <Mesh>();
// Get Initial BoundingBox
var min = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
var max = new Vector3(float.MinValue, float.MinValue, float.MinValue);
var primitiveVertices = primitive.Vertices;
for (int i = 0; i < primitiveVertices.Length; i++)
{
Vector3 vertex = primitiveVertices[i].Position;
Vector3.Min(ref vertex, ref min, out min);
Vector3.Max(ref vertex, ref max, out max);
}
BoundingBox bbox = new Common.Math.BoundingBox(min, max);
// Load Primitive
int vertexCount = primitive.Vertices.Length;
int indexCount = primitive.Indices.Length;
int primitiveCount = indexCount / 3;
var meshVBuffer = new VertexBuffer(VertexPositionNormalTangentColorDualTexture.VertexFormat);
meshVBuffer.SetData(primitive.ByteVertices, vertexCount);
var meshIBuffer = new IndexBuffer(primitive.Indices);
var baseMesh = new Mesh(0, vertexCount, 0, primitiveCount, meshVBuffer, meshIBuffer, PrimitiveType.TriangleList);
baseMesh.Name = "Primitive";
baseMesh.BoundingBox = bbox;
meshes.Add(baseMesh);
primitive.Dispose();
this.BoundingBox = bbox;
this.FromMeshes(graphicsDevice, meshes, bbox);
}
/// <inheritdoc />
protected override void RefreshBoundingBox()
{
var rect = this.Transform2D.Rectangle;
var origin = this.Transform2D.Origin;
rect.X = -origin.X * rect.Width;
rect.Y = -origin.Y * rect.Height;
BoundingBox boundingBox = new Common.Math.BoundingBox();
boundingBox.Min.X = rect.Left;
boundingBox.Min.Y = rect.Top;
boundingBox.Max.X = rect.Right;
boundingBox.Max.Y = rect.Bottom;
if (!this.lineMesh.UseWorldSpace)
{
var world = this.Transform2D.WorldTransform;
boundingBox.Transform(ref world);
}
this.BoundingBox = boundingBox;
}
