public void ShouldCalculateCrossProductOfTwoVectors()
{
PVector aVector = new PVector(3, 4, 5);
PVector bVector = new PVector(1, 2, 3);
PVector expectedResult = new PVector(2, -4, 2);
PVector crossProductVector = aVector.Cross(bVector);
Assert.Equal(expectedResult.X, crossProductVector.X);
Assert.Equal(expectedResult.Y, crossProductVector.Y);
Assert.Equal(expectedResult.Z, crossProductVector.Z);
}
public void ShouldStaticallyCalculateCrossProductOfTwoVectorsAndSetTargetVector()
{
PVector aVector = new PVector(3, 4, 5);
PVector bVector = new PVector(1, 2, 3);
PVector targetVector = new PVector(6, 7, 8);
PVector expectedResult = new PVector(2, -4, 2);
PVector crossProductVector = PVector.Cross(aVector, bVector, targetVector);
Assert.NotSame(targetVector, expectedResult);
Assert.Equal(expectedResult.X, targetVector.X);
Assert.Equal(expectedResult.Y, targetVector.Y);
Assert.Equal(expectedResult.Z, targetVector.Z);
Assert.Equal(expectedResult.X, crossProductVector.X);
Assert.Equal(expectedResult.Y, crossProductVector.Y);
Assert.Equal(expectedResult.Z, crossProductVector.Z);
}
public PVector GetNormal()
{
PVector edge1 = new PVector(V2.X - V1.X, V2.Y - V1.Y, V2.Z - V1.Z);
PVector edge2 = new PVector(V3.X - V1.X, V3.Y - V1.Y, V3.Z - V1.Z);
PVector normal = edge1.Cross(edge2);
return normal.GetNormalization();
}