public void Scale( double scaleFactor )
Public Sub Scale( _ ByVal scaleFactor As Double _ )
Parameters
- scaleFactor
- The factor by which to scale.
Scale Method (Coordinate2D)
In This Topic
Scales the Coordinate2D by the given factor.
Syntax
Exceptions
| Exception | Description |
|---|---|
| System.ArgumentException | scaleFactor is NaN. |
Remarks
Each component of the Coordinate2D is multiplied by scaleFactor. If the scale factor is positive, the direction is not changed. If the scale factor is negative, the direction is opposite the original direction. The Magnitude of the scaled Coordinate2D = original magnitude * Abs(scaleFactor).
Example
2D Vector Operations
Coordinate2D v = new Coordinate2D(0, 1); // v.Magnitude = 1 Coordinate2D other = new Coordinate2D(-1, 0); double dotProduct = v.DotProduct(other); // dotProduct = 0 Coordinate2D w = v + other; // w = (-1, 1) w += other; // w = (-2, 1) w -= other; // w = (-1, 1) w = v; w.Rotate(Math.PI, other); // w = (-2, -1) w = other; w.Scale(-4); // w = (4, 0) // w.Magnitude = 4 w.Move(-1, 4); // w = (3, 4) // w.Magnitude = 5 w.Move(-6, -1); Tuple<double, double> components = w.QueryComponents(); // components = (-3, 3) // w.Magnitude = 3 * Math.Sqrt(2) Coordinate2D unitVector = w.GetUnitVector(); // w = (-Math.Sqrt(2) / 2, Math.Sqrt(2) / 2) // w.Magnitude = 1 w.SetComponents(3, 4);
Requirements
Target Platforms: Windows 11, Windows 10, Windows 8.1
See Also