站内搜索: 请输入搜索关键词
当前页面: 在线文档首页 > JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class Line2D.Float - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Standard Edition
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD DETAIL:  FIELD | CONSTR | METHOD

java.awt.geom
Class Line2D.Float

java.lang.Object
  |
  +--java.awt.geom.Line2D
        |
        +--java.awt.geom.Line2D.Float
Enclosing class:
Line2D
public static class Line2D.Float
extends Line2D

A line segment specified with float coordinates.

Inner classes inherited from class java.awt.geom.Line2D
Line2D.Double, Line2D.Float
 
Field Summary
 float x1
          The X coordinate of the start point of the line segment.
 float x2
          The X coordinate of the end point of the line segment.
 float y1
          The Y coordinate of the start point of the line segment.
 float y2
          The Y coordinate of the end point of the line segment.
 
Constructor Summary
Line2D.Float()
          Constructs and initializes a Line with coordinates (0, 0) -> (0, 0).
Line2D.Float(float X1, float Y1, float X2, float Y2)
          Constructs and initializes a Line from the specified coordinates.
Line2D.Float(Point2D p1, Point2D p2)
          Constructs and initializes a Line2D from the specified Point2D objects.
 
Method Summary
 Rectangle2D getBounds2D()
          Returns the high-precision bounding box of this Line2D.
 Point2D getP1()
          Returns the start point.
 Point2D getP2()
          Returns the end point.
 double getX1()
          Returns the X coordinate of the start point in double precision.
 double getX2()
          Returns the X coordinate of the end point in double precision.
 double getY1()
          Returns the Y coordinate of the start point in double precision.
 double getY2()
          Returns the Y coordinate of the end point in double precision.
 void setLine(double X1, double Y1, double X2, double Y2)
          Sets the location of the endpoints of this Line2D to the specified double coordinates.
 void setLine(float X1, float Y1, float X2, float Y2)
          Sets the location of the endpoints of this Line2D to the specified float coordinates.
 
Methods inherited from class java.awt.geom.Line2D
clone, contains, contains, contains, contains, getBounds, getPathIterator, getPathIterator, intersects, intersects, intersectsLine, intersectsLine, linesIntersect, ptLineDist, ptLineDist, ptLineDist, ptLineDistSq, ptLineDistSq, ptLineDistSq, ptSegDist, ptSegDist, ptSegDist, ptSegDistSq, ptSegDistSq, ptSegDistSq, relativeCCW, relativeCCW, relativeCCW, setLine, setLine
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

x1

public float x1
The X coordinate of the start point of the line segment.

y1

public float y1
The Y coordinate of the start point of the line segment.

x2

public float x2
The X coordinate of the end point of the line segment.

y2

public float y2
The Y coordinate of the end point of the line segment.
Constructor Detail

Line2D.Float

public Line2D.Float()
Constructs and initializes a Line with coordinates (0, 0) -> (0, 0).

Line2D.Float

public Line2D.Float(float X1,
                    float Y1,
                    float X2,
                    float Y2)
Constructs and initializes a Line from the specified coordinates.
Parameters:
X1, Y1 - the first specified coordinates
X2, Y2 - the second specified coordinates

Line2D.Float

public Line2D.Float(Point2D p1,
                    Point2D p2)
Constructs and initializes a Line2D from the specified Point2D objects.
Parameters:
p1 - the first specified Point2D
p2 - the second specified Point2D
Method Detail

getX1

public double getX1()
Returns the X coordinate of the start point in double precision.
Overrides:
getX1 in class Line2D
Returns:
the x coordinate of this Line2D object's starting point in double precision.

getY1

public double getY1()
Returns the Y coordinate of the start point in double precision.
Overrides:
getY1 in class Line2D
Returns:
the x coordinate of this Line2D object's starting point in double precision.

getP1

public Point2D getP1()
Returns the start point.
Overrides:
getP1 in class Line2D
Returns:
the starting Point2D object of this Line2D.

getX2

public double getX2()
Returns the X coordinate of the end point in double precision.
Overrides:
getX2 in class Line2D
Returns:
the x coordinate of this Line2D object's ending point in double precision.

getY2

public double getY2()
Returns the Y coordinate of the end point in double precision.
Overrides:
getY2 in class Line2D
Returns:
the Y coordinate of this Line2D object's ending point in double precision.

getP2

public Point2D getP2()
Returns the end point.
Overrides:
getP2 in class Line2D
Returns:
the ending Point2D object of this Line2D.

setLine

public void setLine(double X1,
                    double Y1,
                    double X2,
                    double Y2)
Sets the location of the endpoints of this Line2D to the specified double coordinates.
Overrides:
setLine in class Line2D
Parameters:
X1, Y1 - the first specified coordinate
X2, Y2 - the second specified coordinate

setLine

public void setLine(float X1,
                    float Y1,
                    float X2,
                    float Y2)
Sets the location of the endpoints of this Line2D to the specified float coordinates.
Parameters:
X1, Y1 - the first specified coordinate
X2, Y2 - the second specified coordinate

getBounds2D

public Rectangle2D getBounds2D()
Returns the high-precision bounding box of this Line2D.
Returns:
a Rectangle2D that is the high-precision bounding box of this Line2D.
Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Standard Edition
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD DETAIL:  FIELD | CONSTR | METHOD
Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.