org.freehep.graphicsio
Class QuadToCubicPathConstructor

java.lang.Object
  org.freehep.graphicsio.AbstractPathConstructor
      org.freehep.graphicsio.QuadToCubicPathConstructor

All Implemented Interfaces:

PathConstructor

Direct Known Subclasses:

CharstringEncoder, CubicToLinePathConstructor, EMFPathConstructor, LatexPathConstructor, PDFPathConstructor, PSPathConstructor

public abstract class QuadToCubicPathConstructor

extends AbstractPathConstructor

Implements the Quadratic Bezier Curve PathConstructor functionality in terms of Cubic Bezier Curves

Version:

$Id: QuadToCubicPathConstructor.java,v 1.2 2004/05/04 17:20:55 duns Exp $

Author:

Mark Donszelmann

Source Code:

QuadToCubicPathConstructor.java

Field Summary

Fields inherited from class org.freehep.graphicsio.AbstractPathConstructor

currentX, currentY

Constructor Summary

protected

QuadToCubicPathConstructor()

Method Summary

void	closePath(double x0, double y0) Closes the path by drawing a straight line to the last point which was argument to move.
void	cubic(double x1, double y1, double x2, double y2, double x3, double y3) Draws a cubic bezier curve from the current point to (x3, y3) using the control points (x1, y1) and (x2, y2) and make (x3, y3) the current point.
void	line(double x, double y) Draws a line from the current point to (x,y) and make (x,y) the current point.
void	move(double x, double y) Makes (x,y) the current point.
void	quad(double x1, double y1, double x2, double y2) Draws a quadratic bezier curve from the current point to (x2, y2) using the control point (x1, y1) and make (x2, y2) the current point.

Methods inherited from class org.freehep.graphicsio.AbstractPathConstructor

addPath, addPath, addPath, flush, isEvenOdd

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QuadToCubicPathConstructor

protected QuadToCubicPathConstructor()

Method Detail

move

public void move(double x,
                 double y)
          throws IOException

Description copied from interface: PathConstructor

Makes (x,y) the current point.

Throws:

IOException

line

public void line(double x,
                 double y)
          throws IOException

Description copied from interface: PathConstructor

Draws a line from the current point to (x,y) and make (x,y) the current point.

Throws:

IOException

quad

public void quad(double x1,
                 double y1,
                 double x2,
                 double y2)
          throws IOException

Description copied from interface: PathConstructor

Draws a quadratic bezier curve from the current point to (x2, y2) using the control point (x1, y1) and make (x2, y2) the current point.

Throws:

IOException

cubic

public void cubic(double x1,
                  double y1,
                  double x2,
                  double y2,
                  double x3,
                  double y3)
           throws IOException

Description copied from interface: PathConstructor

Draws a cubic bezier curve from the current point to (x3, y3) using the control points (x1, y1) and (x2, y2) and make (x3, y3) the current point.

Throws:

IOException

closePath

public void closePath(double x0,
                      double y0)
               throws IOException

Description copied from interface: PathConstructor

Closes the path by drawing a straight line to the last point which was argument to move.

Throws:

IOException