public bool IsOverlap(BoundBox bb)
{
v0 = (this.Vertex1.Position - bb.Center);
v1 = (this.Vertex2.Position - bb.Center);
v2 = (this.Vertex3.Position - bb.Center);
e0 = (this.Vertex2.Position - this.Vertex1.Position);
e1 = (this.Vertex3.Position - this.Vertex2.Position);
e2 = (this.Vertex1.Position - this.Vertex3.Position);
//e0 = this.Edge1;
//e1 = this.Edge3;
//e2 = this.Edge2;
float fex = Math.Abs(e0.X);
float fey = Math.Abs(e0.Y);
float fez = Math.Abs(e0.Z);
if (!AXISTEST_X01(e0.Z, e0.Y, fez, fey, bb.HalfVector)) {
return false;
}
if (!AXISTEST_Y02(e0.Z, e0.X, fez, fex, bb.HalfVector)) {
return false;
}
if (!AXISTEST_Z12(e0.Y, e0.X, fey, fex, bb.HalfVector)) {
return false;
}
fex = Math.Abs(e1.X);
fey = Math.Abs(e1.Y);
fez = Math.Abs(e1.Z);
if (!AXISTEST_X01(e1.Z, e1.Y, fez, fey, bb.HalfVector)) {
return false;
}
if (!AXISTEST_Y02(e1.Z, e1.X, fez, fex, bb.HalfVector)) {
return false;
}
if (!AXISTEST_Z0(e1.Y, e1.X, fey, fex, bb.HalfVector)) {
return false;
}
fex = Math.Abs(e2.X);
fey = Math.Abs(e2.Y);
fez = Math.Abs(e2.Z);
if (!AXISTEST_X2(e2.Z, e2.Y, fez, fey, bb.HalfVector)) {
return false;
}
if (!AXISTEST_Y1(e2.Z, e2.X, fez, fex, bb.HalfVector)) {
return false;
}
if (!AXISTEST_Z12(e2.Y, e2.X, fey, fex, bb.HalfVector)) {
return false;
}
/* test in X-direction */
FindMinMax(v0.X, v1.X, v2.X);
if (min > bb.HalfVector.X || max < -bb.HalfVector.X) {
return false;
}
/* test in Y-direction */
FindMinMax(v0.Y, v1.Y, v2.Y);
if (min > bb.HalfVector.Y || max < -bb.HalfVector.Y) {
return false;
}
/* test in Z-direction */
FindMinMax(v0.Z, v1.Z, v2.Z);
if (min > bb.HalfVector.Z || max < -bb.HalfVector.Z) {
return false;
}
/* test if the box intersects the plane of the triangle */
//normal = (e0 ^ e1);
float d = -this.Normal * v0;
return PlaneBoxOverlap(this.Normal, bb.HalfVector, d);
}
public override bool IsOverlap(BoundBox boundBox)
{
throw new NotImplementedException();
}
public override bool IsOverlap(BoundBox boundBox)
{
throw new NotImplementedException();
}
/// <summary>
/// Verify if this primitive is inside in a bound box. Used in
/// Octree for accerelation <see cref="Octree{T}<T>"/>
/// </summary>
/// <param name="boundBox">BoundBox for inside test</param>
/// <returns>if inside of a box.</returns>
public abstract bool IsOverlap(BoundBox boundBox);
/// <summary>
/// Verify if this primitive is inside in a bound box. Used in
/// Octree for accerelation <see cref="Octree{T}<T>"/>
/// </summary>
/// <param name="boundBox">BoundBox for inside test</param>
/// <returns>if inside of a box.</returns>
public abstract bool IsOverlap(BoundBox boundBox);
public override bool IsOverlap(BoundBox bb)
{
v0 = (this.Vertex1 - bb.Center);
v1 = (this.Vertex2 - bb.Center);
v2 = (this.Vertex3 - bb.Center);
//e0 = (this.Vertex2 - this.Vertex1);
//e1 = (this.Vertex3 - this.Vertex2);
//e2 = (this.Vertex1 - this.Vertex3);
e0 = this.Edge1;
e1 = this.Edge3;
e2 = this.Edge2;
float fex = Math.Abs(e0.X);
float fey = Math.Abs(e0.Y);
float fez = Math.Abs(e0.Z);
if (!AXISTEST_X01(e0.Z, e0.Y, fez, fey, bb.HalfVector))
{
return(false);
}
if (!AXISTEST_Y02(e0.Z, e0.X, fez, fex, bb.HalfVector))
{
return(false);
}
if (!AXISTEST_Z12(e0.Y, e0.X, fey, fex, bb.HalfVector))
{
return(false);
}
fex = Math.Abs(e1.X);
fey = Math.Abs(e1.Y);
fez = Math.Abs(e1.Z);
if (!AXISTEST_X01(e1.Z, e1.Y, fez, fey, bb.HalfVector))
{
return(false);
}
if (!AXISTEST_Y02(e1.Z, e1.X, fez, fex, bb.HalfVector))
{
return(false);
}
if (!AXISTEST_Z0(e1.Y, e1.X, fey, fex, bb.HalfVector))
{
return(false);
}
fex = Math.Abs(e2.X);
fey = Math.Abs(e2.Y);
fez = Math.Abs(e2.Z);
if (!AXISTEST_X2(e2.Z, e2.Y, fez, fey, bb.HalfVector))
{
return(false);
}
if (!AXISTEST_Y1(e2.Z, e2.X, fez, fex, bb.HalfVector))
{
return(false);
}
if (!AXISTEST_Z12(e2.Y, e2.X, fey, fex, bb.HalfVector))
{
return(false);
}
/* test in X-direction */
FindMinMax(v0.X, v1.X, v2.X);
if (min > bb.HalfVector.X || max < -bb.HalfVector.X)
{
return(false);
}
/* test in Y-direction */
FindMinMax(v0.Y, v1.Y, v2.Y);
if (min > bb.HalfVector.Y || max < -bb.HalfVector.Y)
{
return(false);
}
/* test in Z-direction */
FindMinMax(v0.Z, v1.Z, v2.Z);
if (min > bb.HalfVector.Z || max < -bb.HalfVector.Z)
{
return(false);
}
/* test if the box intersects the plane of the triangle */
//normal = (e0 ^ e1);
float d = -this.Normal * v0;
return(PlaneBoxOverlap(this.Normal, bb.HalfVector, d));
}
