Package ptolemy.plot
Class EPSGraphics
- java.lang.Object
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- java.awt.Graphics
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- ptolemy.plot.EPSGraphics
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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:
- $Id$
- Author:
- Edward A. Lee
- Pt.AcceptedRating:
- Yellow (cxh)
- Pt.ProposedRating:
- Yellow (cxh)
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Constructor Summary
Constructors Constructor Description EPSGraphics(java.io.OutputStream out, int width, int height)
Constructor for a graphics object that writes encapsulated PostScript to the specified output stream.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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 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)
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 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)
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.lang.String str, int x, int y)
Draw a string.void
drawString(java.text.AttributedCharacterIterator iterator, int x, int y)
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()
Get the current color.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)
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Constructor Detail
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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.
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Method Detail
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clearRect
public void clearRect(int x, int y, int width, int height)
- Specified by:
clearRect
in classjava.awt.Graphics
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clipRect
public void clipRect(int x, int y, int width, int height)
- Specified by:
clipRect
in classjava.awt.Graphics
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copyArea
public void copyArea(int x, int y, int width, int height, int dx, int dy)
- Specified by:
copyArea
in classjava.awt.Graphics
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create
public java.awt.Graphics create()
- Specified by:
create
in classjava.awt.Graphics
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dispose
public void dispose()
- Specified by:
dispose
in classjava.awt.Graphics
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drawArc
public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
- Specified by:
drawArc
in classjava.awt.Graphics
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drawImage
public boolean drawImage(java.awt.Image img, int x, int y, java.awt.image.ImageObserver observer)
- Specified by:
drawImage
in classjava.awt.Graphics
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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 classjava.awt.Graphics
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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 classjava.awt.Graphics
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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 classjava.awt.Graphics
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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 classjava.awt.Graphics
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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 classjava.awt.Graphics
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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 classjava.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.
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drawPolyline
public void drawPolyline(int[] xPoints, int[] yPoints, int nPoints)
- Specified by:
drawPolyline
in classjava.awt.Graphics
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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 classjava.awt.Graphics
- Parameters:
xPoints
- An array of x coordinates.yPoints
- An array of y coordinates.nPoints
- The total number of vertices.
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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 classjava.awt.Graphics
- Parameters:
x
- The x coordinate of the upper left cornery
- The y coordinate of the upper left cornerwidth
- The width of the oval to be filled.height
- The height of the oval to be filled.
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drawRect
public void drawRect(int x, int y, int width, int height)
- Overrides:
drawRect
in classjava.awt.Graphics
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drawRoundRect
public void drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
- Specified by:
drawRoundRect
in classjava.awt.Graphics
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drawString
public void drawString(java.text.AttributedCharacterIterator iterator, int x, int y)
- Specified by:
drawString
in classjava.awt.Graphics
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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 classjava.awt.Graphics
- Parameters:
str
- The string to draw.x
- The x location of the string.y
- The y location of the string.
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fillArc
public void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
- Specified by:
fillArc
in classjava.awt.Graphics
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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 classjava.awt.Graphics
- Parameters:
xPoints
- An array of x coordinates.yPoints
- An array of y coordinates.nPoints
- The total number of vertices.
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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 classjava.awt.Graphics
- Parameters:
x
- The x coordinate of the upper left cornery
- The y coordinate of the upper left cornerwidth
- The width of the oval to be filled.height
- The height of the oval to be filled.
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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 classjava.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.
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fillRoundRect
public void fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
- Specified by:
fillRoundRect
in classjava.awt.Graphics
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getClip
public java.awt.Shape getClip()
- Specified by:
getClip
in classjava.awt.Graphics
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getClipBounds
public java.awt.Rectangle getClipBounds()
- Specified by:
getClipBounds
in classjava.awt.Graphics
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getColor
public java.awt.Color getColor()
Get the current color.- Specified by:
getColor
in classjava.awt.Graphics
- Returns:
- The current color.
- See Also:
setColor(Color)
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getFont
public java.awt.Font getFont()
- Specified by:
getFont
in classjava.awt.Graphics
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getFontMetrics
public java.awt.FontMetrics getFontMetrics(java.awt.Font f)
- Specified by:
getFontMetrics
in classjava.awt.Graphics
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setFont
public void setFont(java.awt.Font font)
- Specified by:
setFont
in classjava.awt.Graphics
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setClip
public void setClip(java.awt.Shape clip)
- Specified by:
setClip
in classjava.awt.Graphics
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setClip
public void setClip(int x, int y, int width, int height)
- Specified by:
setClip
in classjava.awt.Graphics
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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 classjava.awt.Graphics
- Parameters:
c
- The desired current color.- See Also:
getColor()
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setPaintMode
public void setPaintMode()
- Specified by:
setPaintMode
in classjava.awt.Graphics
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setXORMode
public void setXORMode(java.awt.Color c1)
- Specified by:
setXORMode
in classjava.awt.Graphics
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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.
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translate
public void translate(int x, int y)
- Specified by:
translate
in classjava.awt.Graphics
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