Line

java.lang.Object
- com.partnersoft.geometry.Line

All Implemented Interfaces:

java.io.Serializable
```
public class Line
extends java.lang.Object
implements java.io.Serializable
```
A double-precision line class.

Author:

Paul Reavis Copyright 1999 Partner Software, Inc.

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

double x1

double x2

double y1

double y2

Fields
Modifier and Type	Field and Description
`double`	`x1`
`double`	`x2`
`double`	`y1`
`double`	`y2`

Constructor Summary

Constructors
Constructor and Description

Line()

Line(double x1, double y1, double x2, double y2)

Constructors
Constructor and Description
`Line()`
`Line(double x1, double y1, double x2, double y2)`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`clipToRectangle(Rectangle rectangle)` Clip this line to rectangle.
`boolean`	`equals(Line nother)`
`boolean`	`equals(java.lang.Object nother)`
`Point`	`getCenter()`
`double`	`getLength()`
`double`	`getSlope()`
`double`	`getX1()`
`double`	`getX2()`
`double`	`getY1()`
`double`	`getY2()`
`Point`	`intersect(Line nother)` Finds the intersection point for the two lines.
`boolean`	`isDegenerate()`
`boolean`	`isHorizontal()`
`boolean`	`isRightOf(double x, double y)` Returns true if this line lies to the "right" of the given point, Imagine yourself walking from x1,y1 to x2, y2.
`boolean`	`isVertical()`
`void`	`setToMatch(Line nother)`
`void`	`setX1(double newX)`
`void`	`setX2(double newX)`
`void`	`setY1(double newY)`
`void`	`setY2(double newY)`
`double`	`solveForX(double y)` Finds the x for the given y.
`double`	`solveForY(double x)` Finds the y for the given x.
`void`	`sortLeftToRight()` Makes it run from left to right (so x1 <= x2)
`void`	`swapEnds()` Swaps ends (x1 and x2, y1 and y2)
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

x1
```
public double x1
```

y1
```
public double y1
```

x2
```
public double x2
```

y2
```
public double y2
```

Constructor Detail

Line
```
public Line()
```

Line

public Line(double x1,
    double y1,
    double x2,
    double y2)

Method Detail

getX1
```
public double getX1()
```

setX1
```
public void setX1(double newX)
```

getY1
```
public double getY1()
```

setY1
```
public void setY1(double newY)
```

getX2
```
public double getX2()
```

setX2
```
public void setX2(double newX)
```

getY2
```
public double getY2()
```

setY2
```
public void setY2(double newY)
```

setToMatch
```
public void setToMatch(Line nother)
```

toString
```
public java.lang.String toString()
```
Overrides:

toString in class java.lang.Object

isDegenerate
```
public boolean isDegenerate()
```

isVertical
```
public boolean isVertical()
```

isHorizontal
```
public boolean isHorizontal()
```

getSlope
```
public double getSlope()
```

getLength
```
public double getLength()
```

equals
```
public boolean equals(Line nother)
```

equals

public boolean equals(java.lang.Object nother)

Overrides:: equals in class java.lang.Object

getCenter
```
public Point getCenter()
```

solveForX
```
public double solveForX(double y)
```
Finds the x for the given y.

solveForY
```
public double solveForY(double x)
```
Finds the y for the given x.

sortLeftToRight
```
public void sortLeftToRight()
```
Makes it run from left to right (so x1 <= x2)

intersect
```
public Point intersect(Line nother)
```
Finds the intersection point for the two lines.

swapEnds
```
public void swapEnds()
```
Swaps ends (x1 and x2, y1 and y2)

isRightOf
```
public boolean isRightOf(double x,
                double y)
```
Returns true if this line lies to the "right" of the given point, Imagine yourself walking from x1,y1 to x2, y2. If the point is to your left, this message returns true.

clipToRectangle
```
public boolean clipToRectangle(Rectangle rectangle)
```
Clip this line to rectangle. Returns false if the line does not intersect the rectangle, and leaves x and y in an indeterminate state.

Class Line

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

x1

y1

x2

y2

Constructor Detail

Line

Line

Method Detail

getX1

setX1

getY1

setY1

getX2

setX2

getY2

setY2

setToMatch

toString

isDegenerate

isVertical

isHorizontal

getSlope

getLength

equals

equals

getCenter

solveForX

solveForY

sortLeftToRight

intersect

swapEnds

isRightOf

clipToRectangle