Expression pattern

The expression pattern of a gene groups all the localisations of its expression in the individual. This applet is developed in the aim to visualise the pattern of all gene expressed in an individual, at a particular developement stage, or in order to compare the expression of different allele of a same gene.

Class profile

The applet is made of four classes, which are in the file ExpPatternApplet.java.

ExpPatternApplet extends Applet

It enables displaying the pattern directly into the HTML page loaded. It creates an object from class ScalePanel and another one from class PatPanel. A tokenizer analyses the applet parameter `data' and allows creating, in the `PatPanel', objects from class  GenePattern.

ScalePanel extends Canvas

For the displaying of a scale witch represent the individual.

PatPanel extends Panel

• it builds a panel witch contains :
  • a canvas where the pattern is displayed,
  • the horizontal and vertical scrollbars for moving in the canvas.
• it also builts a Vector (class Java.lang.Vector) of objects from class GenePattern, and display it in the canvas. The paint() method contains a tokenizer wich analyse the attribute `pattern' of each object  from class GenePattern.

GenePattern extends Object

Each object from this class contains three attributes, parsed by the ExpPatternApplet's tokenizer:

• the name of the gene.
• the pattern of the gene
• the color wanted for the display.

Example

For instance, the HTML code:

generates the following pattern display:

Please report any problem here

Source

• ExpPatternApplet.java