public BoundingBox2d GetEnvelope(double d, double estacion1, double estacion2)
{
double t0 = this.t0;
double t1 = this.t1;
Vector2d v = this.dirN.PerpRight.Mul(d);
if (estacion1.EpsilonEquals(this.t0) && estacion2.EpsilonEquals(this.t1))
{
return(BoundingBox2d.Union(this.p0.Add(v), this.p1.Add(v)));
}
if (this.t0.EpsilonEquals(this.t1))
{
return(BoundingBox2d.Union(this.p0.Add(v), this.p0.Add(v)));
}
// Se normaliza la estacion.
double t01_0 = (estacion1 - this.t0) / (this.t1 - this.t0);
double t01_1 = (estacion2 - this.t0) / (this.t1 - this.t0);
return(BoundingBox2d.Union(
this.Evaluate01(t01_0).Add(v),
this.Evaluate01(t01_1).Add(v)));
}
public BoundingBox2d GetEnvelope(double t0, double t1)
{
if (t0.EpsilonEquals(this.t0) && t1.EpsilonEquals(this.t1))
{
return(BoundingBox2d.Union(this.p0, this.p1));
}
if (this.t0.EpsilonEquals(this.t1))
{
return(BoundingBox2d.Union(this.p0, this.p0));
}
// Se normaliza la estacion.
double t01_0 = (t0 - this.t0) / (this.t1 - this.t0);
double t01_1 = (t1 - this.t0) / (this.t1 - this.t0);
return(BoundingBox2d.Union(
this.Evaluate01(t01_0),
this.Evaluate01(t01_1)));
}
public void TestUnion()
{
{
BoundingBox2d bbox1 = new BoundingBox2d(0, 10, 0, 10);
BoundingBox2d bbox2 = new BoundingBox2d(5, 15, 5, 15);
Assert.IsTrue(bbox1.Union(bbox2).EpsilonEquals(new BoundingBox2d(0, 15, 0, 15)));
}
{
BoundingBox2d bbox1 = new BoundingBox2d(0, 10, 0, 10);
BoundingBox2d bbox2 = new BoundingBox2d(5, 7, 5, 7);
Assert.IsTrue(bbox1.Union(bbox2).EpsilonEquals(new BoundingBox2d(0, 10, 0, 10)));
}
{
BoundingBox2d bbox1 = new BoundingBox2d(0, 10, 0, 10);
BoundingBox2d bbox2 = new BoundingBox2d(0, 10, 0, 10);
Assert.IsTrue(bbox1.Union(bbox2).EpsilonEquals(new BoundingBox2d(0, 10, 0, 10)));
}
{
BoundingBox2d bbox1 = new BoundingBox2d(0, 10, 0, 10);
BoundingBox2d bbox2 = new BoundingBox2d(10, 20, 10, 20);
Assert.IsTrue(bbox1.Union(bbox2).EpsilonEquals(new BoundingBox2d(0, 20, 0, 20)));
}
{
BoundingBox2d bbox1 = new BoundingBox2d(0, 10, 0, 10);
BoundingBox2d bbox2 = BoundingBox2d.Empty;
Assert.IsTrue(bbox1.Union(bbox2).EpsilonEquals(new BoundingBox2d(0, 10, 0, 10)));
}
{
BoundingBox2d bbox1 = BoundingBox2d.Empty;
BoundingBox2d bbox2 = BoundingBox2d.Empty;
Assert.IsTrue(bbox1.Union(bbox2).IsEmpty);
}
{
BoundingBox2d bbox1 = new BoundingBox2d(0, double.MaxValue, 0, double.MaxValue);
BoundingBox2d bbox2 = new BoundingBox2d(-double.MaxValue, 10, -double.MaxValue, 10);
Assert.IsTrue(bbox1.Union(bbox2).EpsilonEquals(new BoundingBox2d(-double.MaxValue, double.MaxValue, -double.MaxValue, double.MaxValue)));
}
}