/// <summary>
/// Creates a new plane from the given normal vector and a distance.
/// </summary>
/// <param name="v">The vector normal to the plane.</param>
/// <param name="d">The distance along the plane.</param>
public Plane(Vector3D v, double d)
{
A = v.X;
B = v.Y;
C = v.Z;
D = d;
}
/// <summary>
/// Creates a new point from the given position vector.
/// </summary>
/// <param name="v">The position vector to create a point from.</param>
public Point3D(Vector3D v)
{
X = v.X;
Y = v.Y;
Z = v.Z;
}
/// <summary>
/// Sets new value from the given vector.
/// </summary>
/// <param name="v"></param>
public void Set(Vector3D v)
{
X = v.X;
Y = v.Y;
Z = v.Z;
}
public void add(Vector3D v)
{
x += v.x;
y += v.y;
z += v.z;
}
/// <summary>
/// Creates a new vector that is equivalent to another vector.
/// </summary>
/// <param name="v">The vector to copy.</param>
public Vector3D(Vector3D v)
{
X = v.X;
Y = v.Y;
Z = v.Z;
}
/// <summary>
/// Returns the quotient between this vector and another co-directional vector.
/// </summary>
/// <returns></returns>
public double scalarDivision(Vector3D v)
{
if (x > 0.0001f || x < -0.0001f)
{
return z / v.Z;
}
else if (y > 0.0001f || y < -0.0001f)
{
return y / v.Y;
}
else
{
return x / v.X;
}
}
/// <summary>
/// Returns true if the given vector is a scalar multiple of the other given vector.
/// </summary>
/// <param name="v"></param>
/// <returns></returns>
public bool isScalarMultipleOf(Vector3D v)
{
double a = 1, b = 1, c = 1;
if (x == 0)
if (v.X == 0)
a = 1;
else
a = 0;
else
a = v.X / x;
if (y == 0)
if (v.Y == 0)
b = 1;
else
b = 0;
else
b = v.Y / y;
if (a != b)
return false;
if (z == 0)
if (v.Z == 0)
c = 1;
else
c = 0;
else
c = v.Z / z;
if (b != c)
return false;
if (a == 0)
return false;
return true;
}
/// <summary>
/// Returns true if the two vectors are equivalent.
/// </summary>
/// <param name="v">The other vector to compare against.</param>
public bool equals(Vector3D v)
{
return v.X == x && v.Y == y && v.Z == z;
}
/// <summary>
/// Returns the dot product of this vector and another.
/// </summary>
/// <param name="v">The vector to multiply by.</param>
/// <returns>the dot product of this vector and another.</returns>
public double dotProduct(Vector3D v)
{
return x * v.X + y * v.Y + z * v.Z;
}
/// <summary>
/// Returns the cross product of this vector and another.
/// </summary>
/// <param name="v">The vector to multiply by.</param>
/// <returns>the cross product of this vector and another.</returns>
public Vector3D crossProduct(Vector3D v)
{
return new Vector3D(Y * v.z - Z * v.y, Z * v.x - X * v.z, X * v.y - Y * v.x);
}