public Box(Vector3 min, Vector3 max, string name)
: base(name)
{
Min = min;
Max = max;
bbox = GetBoundingBox();
}
public Torus(float _a, float _b, string name)
: base(name)
{
aa = _a;
bb = _b;
bbox = new BBox(-_a - _b, _a + _b, -_b, _b, -_a - _b, _a + _b);
}
public override void SetBoundingBox()
{
float delta = 0.000001f;
bbox = (new BBox(MathHelper.Min(MathHelper.Min(v0.X, v1.X), v2.X) - delta, MathHelper.Max(MathHelper.Max(v0.X, v1.X), v2.X) + delta,
MathHelper.Min(MathHelper.Min(v0.Y, v1.Y), v2.Y) - delta, MathHelper.Max(MathHelper.Max(v0.Y, v1.Y), v2.Y) + delta,
MathHelper.Min(MathHelper.Min(v0.Z, v1.Z), v2.Z) - delta, MathHelper.Max(MathHelper.Max(v0.Z, v1.Z), v2.Z) + delta));
}
public Annulus(Vector3 cen, Vector3 norm, float i, float w, string name)
: base(name)
{
center = cen;
normal = norm;
inner_radius = i;
wall_thickness = w;
bbox = new BBox(center.X - i - w, center.X + i + w, center.Y - MathHelper.Epsilon, center.Y + MathHelper.Epsilon, center.Z - i - w, center.Z + i + w);
i_squared = i * i;
w_squared = (i + w) * (i + w);
}
public SolidCone(float r, float h, string name)
: base(name)
{
Objects.Add(new OpenCone(r, h, name + "OpenCone"));
Objects.Add(new Disk(new Vector3(0, 0, 0), Vector3.Down, r, name + "Disk"));
bbox = new BBox();
bbox.Min.X = -r;
bbox.Min.Y = 0;
bbox.Min.Z = -r;
bbox.Max.X = r;
bbox.Max.Y = h;
bbox.Max.Z = r;
}
public PartAnnulus(Vector3 pos, Vector3 nor, float i_radius, float w_thickness, float m_azimuth, float mx_azimuth, string name)
: base(name)
{
center = pos;
normal = nor;
inner_radius = i_radius;
wall_thickness = w_thickness;
min_azimuth = MathHelper.ToDegrees(m_azimuth);
max_azimuth = MathHelper.ToDegrees(mx_azimuth);
bbox = new BBox(center.X - inner_radius - wall_thickness, center.X + inner_radius + wall_thickness, center.Y - MathHelper.Epsilon, center.Y + MathHelper.Epsilon, center.Z - inner_radius - wall_thickness, center.Z + inner_radius + wall_thickness);
i_squared = inner_radius * inner_radius;
w_squared = (inner_radius + wall_thickness) * (inner_radius + wall_thickness);
}
void createIndices()
{
for (int x = 0; x < w - 1; x++)
for (int z = 0; z < h - 1; z++)
{
int upperLeft = (z * w + x);
int upperRight = (upperLeft + 1);
int lowerLeft = (upperLeft + w);
int lowerRight = (lowerLeft + 1);
FlatMeshTriangle fmt = new FlatMeshTriangle(upperLeft, upperRight, lowerLeft, m, Name + x + "" + z);
box = BBox.Join(box, fmt.GetBoundingBox());
m.AddObject(fmt);
FlatMeshTriangle fmt2 = new FlatMeshTriangle(lowerLeft, upperRight, lowerRight, m, Name + x + "" + z + "2");
box = BBox.Join(box, fmt2.GetBoundingBox());
m.AddObject(fmt2);
}
}
public virtual void AddObject(GeometricObject o)
{
bbox = BBox.Join(bbox, o.GetBoundingBox());
Objects.Add(o);
}
public override void SetBoundingBox()
{
bbox = new BBox(Center + new Vector3(-Radius), Center + new Vector3(Radius));
}
public Group(string name)
: base(name)
{
bbox = new BBox();
}
public void Union(BBox b2)
{
Vector3 min = Vector3.Zero;
min.X = MathHelper.Min(Min.X, b2.Min.X);
min.Y = MathHelper.Min(Min.Y, b2.Min.Y);
min.Z = MathHelper.Min(Min.Z, b2.Min.Z);
Min = min;
Vector3 max = Vector3.Zero;
max.X = MathHelper.Max(Max.X, b2.Max.X);
max.Y = MathHelper.Max(Max.Y, b2.Max.Y);
max.Z = MathHelper.Max(Max.Z, b2.Max.Z);
Max = max;
}
public static BBox Join(BBox b1, BBox b2)
{
BBox b3 = b1;
b3.Union(b2);
return b3;
}
public bool Overlaps(BBox b)
{
bool x = (Max.X >= b.Min.X) && (Min.X <= b.Max.X);
bool y = (Max.Y >= b.Min.Y) && (Min.Y <= b.Max.Y);
bool z = (Max.Z >= b.Min.Z) && (Min.Z <= b.Max.Z);
return (x && y && z);
}
public Instance(GeometricObject obj, string name)
: base(name)
{
Object = obj;
bbox = obj.GetBoundingBox();
}
public override void SetBoundingBox()
{
Vector3 v0 = Mesh.Vertices[index0], v1 = Mesh.Vertices[index1], v2 = Mesh.Vertices[index2];
float delta = 0.000001f;
bbox = (new BBox(MathHelper.Min(MathHelper.Min(v0.X, v1.X), v2.X) - delta, MathHelper.Max(MathHelper.Max(v0.X, v1.X), v2.X) + delta,
MathHelper.Min(MathHelper.Min(v0.Y, v1.Y), v2.Y) - delta, MathHelper.Max(MathHelper.Max(v0.Y, v1.Y), v2.Y) + delta,
MathHelper.Min(MathHelper.Min(v0.Z, v1.Z), v2.Z) - delta, MathHelper.Max(MathHelper.Max(v0.Z, v1.Z), v2.Z) + delta));
}