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ptolemy.plot
Class EPSGraphics

java.lang.Object
  extended by java.awt.Graphics
      extended by ptolemy.plot.EPSGraphics

public class EPSGraphics
extends java.awt.Graphics

Graphics class supporting EPS export from plots. If this is used from within an applet, then the output goes to the standard output. Unfortunately, with standard browsers, this is not useful. With MS Internet Explorer, standard output is not available. With Netscape Navigator, standard output is available in the Java console, but is limited to fewer lines than what is usually generated. Thus, we recommend using this within Sun's appletviewer, and redirecting its standard output to a file.

Since:
Ptolemy II 0.2
Version:
$Id: EPSGraphics.java,v 1.41 2006/03/30 16:36:39 cxh Exp $
Author:
Edward A. Lee
Accepted Rating:
Yellow (cxh)
Proposed Rating:
Yellow (cxh)

Constructor Summary
EPSGraphics(java.io.OutputStream out, int width, int height)
          Constructor for a graphics object that writes encapsulated PostScript to the specified output stream.
 
Method Summary
 void clearRect(int x, int y, int width, int height)
           
 void clipRect(int x, int y, int width, int height)
           
 void copyArea(int x, int y, int width, int height, int dx, int dy)
           
 java.awt.Graphics create()
           
 void dispose()
           
 void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
           
 boolean drawImage(java.awt.Image img, int x, int y, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
           
 boolean drawImage(java.awt.Image img, int x, int y, java.awt.image.ImageObserver observer)
           
 boolean drawImage(java.awt.Image img, int x, int y, int width, int height, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
           
 boolean drawImage(java.awt.Image img, int x, int y, int width, int height, java.awt.image.ImageObserver observer)
           
 boolean drawImage(java.awt.Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
           
 boolean drawImage(java.awt.Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, java.awt.image.ImageObserver observer)
           
 void drawLine(int x1, int y1, int x2, int y2)
          Draw a line, using the current color, between the points (x1, y1) and (x2, y2) in this graphics context's coordinate system.
 void drawOval(int x, int y, int width, int height)
          Draw an oval bounded by the specified rectangle with the current color.
 void drawPolygon(int[] xPoints, int[] yPoints, int nPoints)
          Draw a closed polygon defined by arrays of x and y coordinates.
 void drawPolyline(int[] xPoints, int[] yPoints, int nPoints)
           
 void drawRect(int x, int y, int width, int height)
           
 void drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
           
 void drawString(java.text.AttributedCharacterIterator iterator, int x, int y)
           
 void drawString(java.lang.String str, int x, int y)
          Draw a string.
 void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
           
 void fillOval(int x, int y, int width, int height)
          Fill an oval bounded by the specified rectangle with the current color.
 void fillPolygon(int[] xPoints, int[] yPoints, int nPoints)
          Draw a filled polygon defined by arrays of x and y coordinates.
 void fillRect(int x, int y, int width, int height)
          Fill the specified rectangle and draw a thin outline around it.
 void fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
           
 java.awt.Shape getClip()
           
 java.awt.Rectangle getClipBounds()
           
 java.awt.Color getColor()
           
 java.awt.Font getFont()
           
 java.awt.FontMetrics getFontMetrics(java.awt.Font f)
           
 void setClip(int x, int y, int width, int height)
           
 void setClip(java.awt.Shape clip)
           
 void setColor(java.awt.Color c)
          Set the current color.
 void setFont(java.awt.Font font)
           
 void setPaintMode()
           
 void setXORMode(java.awt.Color c1)
           
 void showpage()
          Issue the PostScript showpage command, then write and flush the output.
 void translate(int x, int y)
           
 
Methods inherited from class java.awt.Graphics
create, draw3DRect, drawBytes, drawChars, drawPolygon, fill3DRect, fillPolygon, finalize, getClipBounds, getClipRect, getFontMetrics, hitClip, toString
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

EPSGraphics

public EPSGraphics(java.io.OutputStream out,
                   int width,
                   int height)
Constructor for a graphics object that writes encapsulated PostScript to the specified output stream. If the out argument is null, then it writes to standard output (it would write it to the clipboard, but as of this writing, writing to the clipboard does not work in Java).

Parameters:
out - The stream to write to, or null to write to standard out.
width - The width of the plot graphic, in units of 1/72 inch.
height - The height of the plot graphic, in units of 1/72 inch.
Method Detail

clearRect

public void clearRect(int x,
                      int y,
                      int width,
                      int height)
Specified by:
clearRect in class java.awt.Graphics

clipRect

public void clipRect(int x,
                     int y,
                     int width,
                     int height)
Specified by:
clipRect in class java.awt.Graphics

copyArea

public void copyArea(int x,
                     int y,
                     int width,
                     int height,
                     int dx,
                     int dy)
Specified by:
copyArea in class java.awt.Graphics

create

public java.awt.Graphics create()
Specified by:
create in class java.awt.Graphics

dispose

public void dispose()
Specified by:
dispose in class java.awt.Graphics

drawArc

public void drawArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)
Specified by:
drawArc in class java.awt.Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         java.awt.image.ImageObserver observer)
Specified by:
drawImage in class java.awt.Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         int width,
                         int height,
                         java.awt.image.ImageObserver observer)
Specified by:
drawImage in class java.awt.Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         java.awt.Color bgcolor,
                         java.awt.image.ImageObserver observer)
Specified by:
drawImage in class java.awt.Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         int width,
                         int height,
                         java.awt.Color bgcolor,
                         java.awt.image.ImageObserver observer)
Specified by:
drawImage in class java.awt.Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int dx1,
                         int dy1,
                         int dx2,
                         int dy2,
                         int sx1,
                         int sy1,
                         int sx2,
                         int sy2,
                         java.awt.image.ImageObserver observer)
Specified by:
drawImage in class java.awt.Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int dx1,
                         int dy1,
                         int dx2,
                         int dy2,
                         int sx1,
                         int sy1,
                         int sx2,
                         int sy2,
                         java.awt.Color bgcolor,
                         java.awt.image.ImageObserver observer)
Specified by:
drawImage in class java.awt.Graphics

drawLine

public void drawLine(int x1,
                     int y1,
                     int x2,
                     int y2)
Draw a line, using the current color, between the points (x1, y1) and (x2, y2) in this graphics context's coordinate system.

Specified by:
drawLine in class java.awt.Graphics
Parameters:
x1 - the x coordinate of the first point.
y1 - the y coordinate of the first point.
x2 - the x coordinate of the second point.
y2 - the y coordinate of the second point.

drawPolyline

public void drawPolyline(int[] xPoints,
                         int[] yPoints,
                         int nPoints)
Specified by:
drawPolyline in class java.awt.Graphics

drawPolygon

public void drawPolygon(int[] xPoints,
                        int[] yPoints,
                        int nPoints)
Draw a closed polygon defined by arrays of x and y coordinates. Each pair of (x, y) coordinates defines a vertex. The third argument gives the number of vertices. If the arrays are not long enough to define this many vertices, or if the third argument is less than three, then nothing is drawn.

Specified by:
drawPolygon in class java.awt.Graphics
Parameters:
xPoints - An array of x coordinates.
yPoints - An array of y coordinates.
nPoints - The total number of vertices.

drawOval

public void drawOval(int x,
                     int y,
                     int width,
                     int height)
Draw an oval bounded by the specified rectangle with the current color.

Specified by:
drawOval in class java.awt.Graphics
Parameters:
x - The x coordinate of the upper left corner
y - The y coordinate of the upper left corner
width - The width of the oval to be filled.
height - The height of the oval to be filled.

drawRect

public void drawRect(int x,
                     int y,
                     int width,
                     int height)
Overrides:
drawRect in class java.awt.Graphics

drawRoundRect

public void drawRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
Specified by:
drawRoundRect in class java.awt.Graphics

drawString

public void drawString(java.text.AttributedCharacterIterator iterator,
                       int x,
                       int y)
Specified by:
drawString in class java.awt.Graphics

drawString

public void drawString(java.lang.String str,
                       int x,
                       int y)
Draw a string. "(" is converted to "\(" and ")" is converted to "\) so as to avoid EPS Syntax errors.

Specified by:
drawString in class java.awt.Graphics
Parameters:
str - The string to draw.
x - The x location of the string.
y - The y location of the string.

fillArc

public void fillArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)
Specified by:
fillArc in class java.awt.Graphics

fillPolygon

public void fillPolygon(int[] xPoints,
                        int[] yPoints,
                        int nPoints)
Draw a filled polygon defined by arrays of x and y coordinates. Each pair of (x, y) coordinates defines a vertex. The third argument gives the number of vertices. If the arrays are not long enough to define this many vertices, or if the third argument is less than three, then nothing is drawn.

Specified by:
fillPolygon in class java.awt.Graphics
Parameters:
xPoints - An array of x coordinates.
yPoints - An array of y coordinates.
nPoints - The total number of vertices.

fillOval

public void fillOval(int x,
                     int y,
                     int width,
                     int height)
Fill an oval bounded by the specified rectangle with the current color.

Specified by:
fillOval in class java.awt.Graphics
Parameters:
x - The x coordinate of the upper left corner
y - The y coordinate of the upper left corner
width - The width of the oval to be filled.
height - The height of the oval to be filled.

fillRect

public void fillRect(int x,
                     int y,
                     int width,
                     int height)
Fill the specified rectangle and draw a thin outline around it. The left and right edges of the rectangle are at x and x + width - 1. The top and bottom edges are at y and y + height - 1. The resulting rectangle covers an area width pixels wide by height pixels tall. The rectangle is filled using the brightness of the current color to set the level of gray.

Specified by:
fillRect in class java.awt.Graphics
Parameters:
x - The x coordinate of the top left corner.
y - The y coordinate of the top left corner.
width - The width of the rectangle.
height - The height of the rectangle.

fillRoundRect

public void fillRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
Specified by:
fillRoundRect in class java.awt.Graphics

getClip

public java.awt.Shape getClip()
Specified by:
getClip in class java.awt.Graphics

getClipBounds

public java.awt.Rectangle getClipBounds()
Specified by:
getClipBounds in class java.awt.Graphics

getColor

public java.awt.Color getColor()
Specified by:
getColor in class java.awt.Graphics

getFont

public java.awt.Font getFont()
Specified by:
getFont in class java.awt.Graphics

getFontMetrics

public java.awt.FontMetrics getFontMetrics(java.awt.Font f)
Specified by:
getFontMetrics in class java.awt.Graphics

setFont

public void setFont(java.awt.Font font)
Specified by:
setFont in class java.awt.Graphics

setClip

public void setClip(java.awt.Shape clip)
Specified by:
setClip in class java.awt.Graphics

setClip

public void setClip(int x,
                    int y,
                    int width,
                    int height)
Specified by:
setClip in class java.awt.Graphics

setColor

public void setColor(java.awt.Color c)
Set the current color. Since we are generating gray scale postscript, set a line style. Set the gray level to zero (black).

Specified by:
setColor in class java.awt.Graphics
Parameters:
c - The desired current color.

setPaintMode

public void setPaintMode()
Specified by:
setPaintMode in class java.awt.Graphics

setXORMode

public void setXORMode(java.awt.Color c1)
Specified by:
setXORMode in class java.awt.Graphics

showpage

public void showpage()
Issue the PostScript showpage command, then write and flush the output. If the output argument of the constructor was null, then write to the clipboard.

translate

public void translate(int x,
                      int y)
Specified by:
translate in class java.awt.Graphics
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