DotProduct(Coordinate2D) Method

In This Topic

Calculates the dot product of this Coordinate2D and another Coordinate2D. Vector dot product is used.

Syntax

Visual Basic (Declaration)
C#

Public Function DotProduct( _
   ByVal other As Coordinate2D _
) As Double

public double DotProduct( 
   Coordinate2D other
)

Parameters

other: The input Coordinate2D to use in the dot product.

Return Value

A double representing the dot product of this Coordinate2D and the input Coordinate2D. The dot product is the sum of multiplying corresponding components of each Coordinate2D.

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 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.2 or higher.

Reference

Coordinate2D Structure
Coordinate2D Members

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