public void NearestPointOnLineSegment3dVerification()
{
Vector3 a = new Vector3(0.0f, 0.0f, 5.0f);
Vector3 b = new Vector3(5.0f, 0.0f, 0.0f);
Vector3 pnt = new Vector3(0.0f, 0.0f, 0.0f);
Vector3 expected = new Vector3(2.5f, 0.0f, 2.5f);
// Normal case
UnityAssert.AreClose(expected, LinearAlgebra.NearestPointOnLineSegment(a, b, pnt), 0.0001f);
// Edge cases
Vector3 ones = Vector3.one;
Vector3 negOnes = -1.0f * ones;
UnityAssert.AreClose(Vector3.zero, LinearAlgebra.NearestPointOnLineSegment(Vector3.zero, ones, negOnes), 0.0001f);
UnityAssert.AreClose(Vector3.zero, LinearAlgebra.NearestPointOnLineSegment(Vector3.zero, Vector3.zero, ones), 0.0001f);
}
public void NearestPointOnLineSegment2dVerification()
{
Vector2 a = new Vector2(0.0f, 5.0f);
Vector2 b = new Vector2(5.0f, 0.0f);
Vector2 pnt = new Vector2(0.0f, 0.0f);
Vector2 expected = new Vector2(2.5f, 2.5f);
// Normal case
UnityAssert.AreClose(expected, LinearAlgebra.NearestPointOnLineSegment(a, b, pnt), 0.0001f);
// Edge cases
Vector2 ones = new Vector2(1.0f, 1.0f);
Vector2 negOnes = new Vector2(-1.0f, -1.0f);
UnityAssert.AreClose(Vector3.zero, LinearAlgebra.NearestPointOnLineSegment(Vector2.zero, ones, negOnes), 0.0001f);
UnityAssert.AreClose(Vector3.zero, LinearAlgebra.NearestPointOnLineSegment(Vector2.zero, Vector2.zero, ones), 0.0001f);
}