Graphics Object : Java Glossary

Graphics Object

The Graphics class is abstract. It is just a collection of specifications for low-level drawing methods. The graphics object also contains a reference to the area of ram where the bit image will be constructed and it also contains the current clipping region. It is used for all types of painting including placing components, canvas drawing, and laying out text.

The most often use the Graphics object is as a parameter to your paint, paintComponent or print method. You often cast the abstract Graphics to an actual Graphics2D object to access additional methods. Have a look at the Screws application to understand the basics of drawing.

Sun’s Javadoc on Graphics class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on Graphics2D class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on GeneralPath class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on Path2D class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Path2D is available in JDK 1..6+.

Sun’s Javadoc on Graphics2D.addRenderingHints : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on clearRect class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on drawImage class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on drawPolygon class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on drawString class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

the Graphics. drawString method behaves differently from other drawing methods. Usually the x,y is the upper left corner. For drawString, it is the left end of the string baseline.

Sun’s Javadoc on fillRect class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on setClip class : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Sun’s Javadoc on Graphics2D.setTransform : available:

on the web at java.sun.com
in the current JDK 1.6.0_17 or in the old JDK 1.5.0_22 on your local Windows J: drive.

Canvas
co-ordinates
Image

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