public Vec3 GetNormal()
{
var v1 = this.getVertexPosition(0);
var v2 = this.getVertexPosition(1);
var v3 = this.getVertexPosition(2);
return(LinearAlgebra.GetNormal(v1, v2, v3));
}
public Face(List <int> vertices, Model m)
{
this.vertices = vertices;
this.model = m;
Dictionary <Vec3, int> mapping = new Dictionary <Vec3, int>();
for (int i = 0; i < vertices.Count; i++)
{
int idx = vertices[i];
mapping[this.getVertexPosition(idx)] = idx;
}
var ordered = LinearAlgebra.OrderVertices(this.GetVertexPositions());
ordered.Reverse();
this.vertices = ordered.Select(i => mapping[i]).ToList();
}
public Vec3 GetFaceCenter(Face faceToExtrude)
{
return(LinearAlgebra.GetCenter(faceToExtrude.GetVertexPositions()));
}