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Thank you a lot. It works now

The problem was


<f.paint( graphics2D );
The correct is


<drawingPanel.paint( graphics2D );>

So, can I send my application as a jar file to your email?

The main method is in another class (GUIApp class)


<import java.awt.BorderLayout;


import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import...

<
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;...

< import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;...

Yes, but this code does not work maybe it requires JPanel.

This code my code, but it does not save the image just blank page. PLEASE HELP


import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import...

Ok, I will try that.

I want it to hold the values of x & y

I wanna call that method in this method

private void execute(String actionLine, Graphics g ) {
System.out.println("action=" + actionLine);


Color color[] = {Color.pink,...

Yes, it returns points x & y. I will call this method then in another method that plots the pie charts.

public int getCenterPoint(int x1,int y1){

int xCenter = getWidth()/ 2;
int yCenter = getHeight()/ 2;
int radius = (int) (Math.min(getWidth(), getHeight()) * 0.4);
...

How to make centers for multiple pie charts using for loop?

Thank you a lot.

Do you have any idea about how to do PlotButton construction action?

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import javax.swing.JPanel;

That what I have in DrawingCanvas class,but I do not how to do PlotButtonAction class that plots the pie charts.

public class DrawingCanvas extends JPanel {

int width;
int height;...

I want it to contain the DArray of cols and rows that is in the file text

I use Guiapp class and plot button that plot the charts of Drawing Canvas class( which draw the pies)

Is this code correct:
String cmd = "arc" x + " " + y + " " + theta + " " + color;

How to draw multiple pie charts according to DArray, and how to compute scale factor for 400*300?