/// <summary>
/// Update polygons from the given points. (happens once)
/// </summary>
public void UpdatePolygons()
{
// Init list if required
if (polygons == null)
{
polygons = new List <Polygon3D>();
}
// reset list
polygons.Clear();
// Add center and scale to all points
foreach (Point3D p in points.Values)
{
p.x *= Scale;
p.y *= Scale;
p.z *= Scale;
p.x += Pivot.x;
p.y += Pivot.y;
p.z += Pivot.z;
}
// Create triangular polygons for each face of the box
Point3D[] top1 = { points["tlb"], points["tlf"], points["trf"] };
Point3D[] top2 = { points["tlb"], points["trf"], points["trb"] };
Point3D[] bot1 = { points["brb"], points["brf"], points["blf"] };
Point3D[] bot2 = { points["brb"], points["blf"], points["blb"] };
Point3D[] right1 = { points["trf"], points["brf"], points["brb"] };
Point3D[] right2 = { points["trf"], points["brb"], points["trb"] };
Point3D[] left1 = { points["tlb"], points["blb"], points["blf"] };
Point3D[] left2 = { points["tlb"], points["blf"], points["tlf"] };
Point3D[] front1 = { points["tlf"], points["blf"], points["brf"] };
Point3D[] front2 = { points["tlf"], points["brf"], points["trf"] };
Point3D[] back1 = { points["trb"], points["brb"], points["blb"] };
Point3D[] back2 = { points["trb"], points["blb"], points["tlb"] };
// Apply box rotation
Transformations.Transformation x = new Transformations.Rotate();
x.Transform(this, new Point3D(rotation.x, rotation.y, rotation.z));
// Create polygons and add to list
polygons.Add(new Polygon3D(top1, System.Drawing.Color.Black, System.Drawing.Color.Red));
polygons.Add(new Polygon3D(top2, System.Drawing.Color.Black, System.Drawing.Color.Red));
polygons.Add(new Polygon3D(bot1, System.Drawing.Color.Black, System.Drawing.Color.Blue));
polygons.Add(new Polygon3D(bot2, System.Drawing.Color.Black, System.Drawing.Color.Blue));
polygons.Add(new Polygon3D(right1, System.Drawing.Color.Black, System.Drawing.Color.DarkViolet));
polygons.Add(new Polygon3D(right2, System.Drawing.Color.Black, System.Drawing.Color.DarkViolet));
polygons.Add(new Polygon3D(left1, System.Drawing.Color.Black, System.Drawing.Color.Purple));
polygons.Add(new Polygon3D(left2, System.Drawing.Color.Black, System.Drawing.Color.Purple));
polygons.Add(new Polygon3D(front1, System.Drawing.Color.Black, System.Drawing.Color.Magenta));
polygons.Add(new Polygon3D(front2, System.Drawing.Color.Black, System.Drawing.Color.Magenta));
polygons.Add(new Polygon3D(back1, System.Drawing.Color.Black, System.Drawing.Color.Salmon));
polygons.Add(new Polygon3D(back2, System.Drawing.Color.Black, System.Drawing.Color.Salmon));
}
/// <summary>
/// Creates polygons for the pyramid
/// </summary>
public void UpdatePolygons()
{
// init polygon list if required
if (polygons == null)
{
polygons = new List <Polygon3D>();
}
// clear list
polygons.Clear();
// Apply scale and center to points
foreach (Point3D p in points.Values)
{
p.x *= Scale;
p.y *= Scale;
p.z *= Scale;
p.x += Pivot.x;
p.y += Pivot.y;
p.z += Pivot.z;
}
// Create point arrays for triangular polygons
Point3D[] top1 = { points["top"], points["bbl"], points["bfc"] };
Point3D[] top2 = { points["top"], points["bbr"], points["bbl"] };
Point3D[] top3 = { points["top"], points["bfc"], points["bbr"] };
Point3D[] base1 = { points["bfc"], points["bbl"], points["bbr"] };
// apply shape rotation
Transformations.Transformation x = new Transformations.Rotate();
x.Transform(this, new Point3D(rotation.x, rotation.y, rotation.z));
// create and save polygons in list
polygons.Add(new Polygon3D(top1, System.Drawing.Color.Black, System.Drawing.Color.Red));
polygons.Add(new Polygon3D(top2, System.Drawing.Color.Black, System.Drawing.Color.DarkSlateGray));
polygons.Add(new Polygon3D(top3, System.Drawing.Color.Black, System.Drawing.Color.DarkViolet));
polygons.Add(new Polygon3D(base1, System.Drawing.Color.Black, System.Drawing.Color.DarkGreen));
}