basic.PointDistance Class Reference

Calculate the Euclidean distance of each two successive points in an input trace of (x,y) coordinates. More...

Classes
class	Distance
	We create a new function: Distance.
class	Point

Static Public Member Functions
static void	main (String[] args)
static Object []	getListOfPoints ()
	Creates a dummy array of points. More...

Detailed Description

Calculate the Euclidean distance of each two successive points in an input trace of (x,y) coordinates.

For two points (x₁,y₁) and (x₂,y₂), the Euclidean distance is defined as the square root of (x₁-x₂)² + (y₁-y₂)². The chain of processors in this example can be represented graphically as:

In this picture, light green pipes correspond to streams of Point objects. The processor with a ruler and a "d" is the Distance processor defined below.

On an input stream made of points (2,7), (1,8), (2,8), (1,8), …, the expected output of this program should look like:

1.4142135
1.0
1.0
1.0
3.6055512
…

Author

Sylvain Hallé Easy

Definition at line 60 of file PointDistance.java.

Member Function Documentation

getListOfPoints()

static Object [] basic.PointDistance.getListOfPoints ( )

static

Creates a dummy array of points.

Returns

An array of points

Definition at line 139 of file PointDistance.java.

    {
        return new Object[]{
                new Point(2, 7),
                new Point(1, 8),
                new Point(2, 8),
                new Point(1, 8),
                new Point(2, 8),
                new Point(4, 5),
                new Point(9, 0),
                new Point(4, 5),
                new Point(2, 3),
                new Point(5, 3),
                new Point(6, 0),
                new Point(2, 8)
        };
    }

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The documentation for this class was generated from the following file:

• Source/src/basic/PointDistance.java