Line

java.lang.Object
- ProGAL.geom2d.Line

All Implemented Interfaces:: Shape

public class Line
extends java.lang.Object
implements Shape

Field Summary

Fields
Modifier and Type Field and Description

protected Vector n

protected Point p

Fields
Modifier and Type	Field and Description
`protected Vector`	`n`
`protected Point`	`p`

Constructor Summary

Constructors
Constructor and Description
`Line(double a, double c)` creates a line y = ax + c
`Line(double a, double b, double c)` creates a line ax + by + c = 0
`Line(LineSegment seg)` creates a line through a given segment
`Line(Point p, Point q)` creates a line through 2 given points
`Line(Point p, Vector n)` creates a line through a given point and with a given normal vector

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`areParallel(Line l1, Line l2)`
`boolean`	`contains(Point p)`
`static Line`	`getBisectorLine(Point p, Point q)` Creates a bisector line between points p and q
`Point`	`getCenter()` Get the geometric center of the shape.
`Vector`	`getDirection()`
`double`	`getDistance(Point q)` returns the distance of the point q to the line
`static Point`	`getIntersection(Line l1, Line l2)`
`Point`	`getPoint()`
`Point`	`getPoint(double d)` returns the point on the line at distance d from the line-defining point p
`double`	`getSlope()`
`double`	`intersectionParameter(Line l)`
`boolean`	`isAbove(Point q)`
`boolean`	`isBelow(Point q)`
`boolean`	`isParallelWith(Line l)`
`boolean`	`isVertical()`
`double`	`projectionParameter(Point q)`
`Point`	`projectPoint(Point q)` projects point `p` onto THIS line
`void`	`toConsole()`
`void`	`toConsole(java.lang.String name)`
`java.lang.String`	`toString()`
`java.lang.String`	`toString(java.lang.String name)`
`void`	`translateTo(Point p)` translates the line so it goes through the point <`p`

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

Field Detail
- p
```
protected Point p
```
- n
```
protected Vector n
```

Constructor Detail

Line
```
public Line(Point p,
            Vector n)
```
creates a line through a given point and with a given normal vector

Line

public Line(Point p,
            Point q)

creates a line through 2 given points

Line
```
public Line(LineSegment seg)
```
creates a line through a given segment

Line

public Line(double a,
            double b,
            double c)

creates a line ax + by + c = 0

Line

public Line(double a,
            double c)

creates a line y = ax + c

Method Detail
- getBisectorLine
```
public static Line getBisectorLine(Point p,
                                   Point q)
```
  Creates a bisector line between points p and q
- getPoint
```
public Point getPoint()
```
- getDirection
```
public Vector getDirection()
```
- getSlope
```
public double getSlope()
```
- isVertical
```
public boolean isVertical()
```
- isParallelWith
```
public boolean isParallelWith(Line l)
```
- isAbove
```
public boolean isAbove(Point q)
```
- isBelow
```
public boolean isBelow(Point q)
```
- areParallel
```
public static boolean areParallel(Line l1,
                                  Line l2)
```
- translateTo
```
public void translateTo(Point p)
```
  translates the line so it goes through the point <p
  
  Parameters:
  
  p -
- projectPoint
```
public Point projectPoint(Point q)
```
  projects point p onto THIS line
  
  Parameters:
  
  q - point to be projected
  
  Returns:
  
  projection on the line
- projectionParameter
```
public double projectionParameter(Point q)
```
- getIntersection
```
public static Point getIntersection(Line l1,
                                    Line l2)
```
- toString
```
public java.lang.String toString(java.lang.String name)
```
- toString
```
public java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Object
- toConsole
```
public void toConsole(java.lang.String name)
```
- toConsole
```
public void toConsole()
```
- getPoint
```
public Point getPoint(double d)
```
  returns the point on the line at distance d from the line-defining point p
- getDistance
```
public double getDistance(Point q)
```
  returns the distance of the point q to the line
- intersectionParameter
```
public double intersectionParameter(Line l)
```
- getCenter
```
public Point getCenter()
```
  Description copied from interface: Shape
  
  Get the geometric center of the shape. The center of a shape can be interpreted in many ways (center of mass, circumcenter, inscribed center etc.). No strict requirement is given here, but typically the circumcenter should be supplied. This method is most prominently used to find the average center-position of a collection of shapes such that scene-viewers can be centered on the scene.
  
  Specified by:
  
  getCenter in interface Shape
- contains
```
public boolean contains(Point p)
```
  Specified by:
  
  contains in interface Shape

Class Line

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

p

n

Constructor Detail

Line

Line

Line

Line

Line

Method Detail

getBisectorLine

getPoint

getDirection

getSlope

isVertical

isParallelWith

isAbove

isBelow

areParallel

translateTo

projectPoint

projectionParameter

getIntersection

toString

toString

toConsole

toConsole

getPoint

getDistance

intersectionParameter

getCenter

contains