/// <summary>
/// Creates the triangles of a side.
/// </summary>
/// <param name="points">Collection of Point3D (may be an other collection than Points (i.e. a side collection).</param>
/// <param name="tsk">TriangleSideKind Value.</param>
protected void CreateSideTriangles(Point3DCollection points, TriangleSideKind tsk)
{
for (int i = 0; i < points.Count - 2; i++)
{
if (tsk == TriangleSideKind.Front)
{
this.Triangles.Add(new Point3DTriplet(points[0], points[i + 1], points[i + 2]));
}
else
{
this.Triangles.Add(new Point3DTriplet(points[0], points[i + 2], points[i + 1]));
}
}
}
/// <summary>
/// Build the triangles, with a specific side orientation.
/// </summary>
/// <param name="tsk">TriangleSideKind value (triangle orientation).</param>
public virtual void BuildTriangles(TriangleSideKind tsk)
{
RoundCorner();
// _circumference = 0.0; // forces a refresh of the Circumference property
this.Triangles.Clear();
if (Points.Count < 3)
{
throw new ArgumentException("Points.Count < 3");
}
if (!_centered)
{
CreateSideTriangles(Points, tsk);
}
else
{
// center based triangles
for (int i = 0; i <= Points.Count - 1; i++)
{
if (tsk == TriangleSideKind.Front)
{
if (i < Points.Count - 1)
{
this.Triangles.Add(new Point3DTriplet(_center, Points[i], Points[i + 1]));
}
else
{
this.Triangles.Add(new Point3DTriplet(_center, Points[i], Points[0]));
}
}
else
{
if (i < Points.Count - 1)
{
this.Triangles.Add(new Point3DTriplet(_center, Points[i + 1], Points[i]));
}
else
{
this.Triangles.Add(new Point3DTriplet(_center, Points[0], Points[i]));
}
}
}
}
}
/// <summary>
/// Build the triangles, with a specific side orientation.
/// </summary>
/// <param name="tsk">TriangleSideKind value (triangle orientation).</param>
public void BuildTriangles(TriangleSideKind tsk)
{
RoundCorner();
this.Triangles.Clear();
if (Points.Count < 3)
{
throw new ArgumentException("Points.Count < 3");
}
if (!_centered)
{
CreateSideTriangles(Points, tsk);
}
else
{
// triangles basés sur le centre
for (int i = 0; i <= Points.Count - 1; i++)
{
if (tsk == TriangleSideKind.Front)
{
if (i < Points.Count - 1)
{
this.Triangles.Add(new Point3DTriplet(_center, Points[i], Points[i + 1]));
}
else
{
this.Triangles.Add(new Point3DTriplet(_center, Points[i], Points[0]));
}
}
else
{
if (i < Points.Count - 1)
{
this.Triangles.Add(new Point3DTriplet(_center, Points[i + 1], Points[i]));
}
else
{
this.Triangles.Add(new Point3DTriplet(_center, Points[0], Points[i]));
}
}
}
}
}
