Creating A Chart For Work?

Mar 6, 2015

I need to create a chart for work and comes across this sample from mbostock's chord diagram (bl.ocks.org/mbostock/4062006).

I only need to revise the tick label (names, display positions) but I don't know how to do it as I have 0 experience with Java.

My sample data for the var matrix is

[0,100,100,100]
[0,0,99,98]
[0,0,92,84]
[0,99,0,0]

which shows flows between country A, B, C and D.

I would like to revise the tick labels, so that:

1) Instead of showing 0K 5K 10K, I would like to show the country names (A - D), with no number or tick. I figured out this one by just commenting out all the codes relating to ticks.

2) Place the country names in the center of the arch. I don't know how to do this one.

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Creating Chart Of Data - SerialPorts

Apr 10, 2015

I'm creating a small program that will be able to chart data that will be transmitted from a sensor device connected to the USB port. I would like to create a running chart that will display the data sequentially with respect to time.

[URL] ....

I am not sure how to implement the runLater function and display the data. What should I hope to accomplish using the ranLater function? I understand that I need to an XYChart.Series to keep a continuously modifying chart, but other than that I'm not sure how to implement it.

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I want to create 4 quadrants on a bubble chart. How can I do that. I have already created by bubble chart. The quadrant chart using JFreeChart is given here (Dave Gilbert's Weblog : Weblog) but I want to create it using JavaFX charting.

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How To Create A PIE Chart

Jan 14, 2014

Here is the application that does this; test your coding of class PieChartWriter with it.

import java.awt.*;
public class TestPieChart
{ public static void main(String[] args)
{ PieChartWriter p = new PieChartWriter();
p.setTitle("How I spend my day");
p.setSlice1("Sleep: 7 hours", 7, Color.black);
p.setSlice4("Recreation: 9 hours", 9, Color.gray);
p.setSlice2("In class: 3 hours", 3, Color.blue);
p.setSlice3("Homework: 5 hours", 5, Color.red);
}
}

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Bar Chart With Asterisks

Oct 12, 2014

I need to make a loop that prints out a certain number of asterisks, depending on the random number generated (includes 0-24, not including 25). I'm just in basic java programming and am stuck on this task.

These are the directions given to me:

Write a loop to do the following tasks 10 times:
-Generate a random number in the range of 0 to 24 and store in an int variable named: score
-Write loop to print a bar of asterisks proportional to the value in score :

For example: , if value stored in score is 8, the bar chart should like as follows: (value of score spaced by a tab ( ) and a series of 8 asterisks in one line)
8 ********
//end of the loop

I've tried looking for other questions like this, but this one is a random number, with no input. Yes, I know there are easier ways, but my professor is extremely picky with everything.

This is what I have so far:

public class PA5LoopsA {
public static void main(String [] args) {
//Declare variables
int score;
//Generate random number between 0 and 24
score = (int) (Math.random() * 25);

[Code] ....

Clearly, none of my formatting went through...yes, I know how to space everything out!

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Bar Chart With Asterisks?

Oct 19, 2014

Here is the assignment instructions:

Overview: Use the Eclipse Java environment to create and test a program using methods that will display a bar graph.

Specifics: This assignment is an extension of the Module 5 activity, the first bar chart (asterisk) display program. You should also make use of the Bar Chart printing program of Chapter 6 (Fig. 6 in the textbook, p. 217).

Your program should use methods to accept input from the keyboard, store it in an array, and use that data to display a bar graph.

Pseudocode for the program might look like the following.

Main
declare an array of integers
get the number of asterisks in each bar
print the bar graph
get the number of asterisks in each bar
declare a Scanner input object
declare an array to fill and return

[code]....

Problem is I cannot get it to display the number of asterisks I enter as input.

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JSF :: Organizational Chart In Primefaces

Dec 31, 2013

I would like to create this type of chart with Primefaces (or another JSF API), what is the best component to use to do this:

[URL] .....

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Mar 12, 2014

I have a JScrollPane and JTable inside. In the right column of the table at the end (south) I made a ChartPanel in one of the classes where I make the design for the Frame:

Java Code:

ChartPanel chartpanel = new ChartPanel(pieChart);
pCapturing.add(chartpanel, BorderLayout.NORTH); mh_sh_highlight_all('java');

And when I click on any row above, from the list in the column, I would like an appropriate pie chart to be drawn.

I need here (in another class where I define the getTableCellRendererComponent) to enter a code to display the chart in the last row of the panel:

Java Code:

PieChart3 pie=sectionsChartProvider.getSectionPieChart(section);
...
...
if((hasFocus) || (isSelected)) {
if(column == 0)
setBorder( new MatteBorder(1, 1, 1, 0, colorBorder) );

[Code] .....

But, I don't know how to do this. I also have a class for drawing the pie chart.

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Mar 9, 2014

I use JTable and JScrollpane in my java application, and I would like for every selected row in the scroll pane, the pie chart to be made for the values in % that the row contain.

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Class Can't Implement Chart

Mar 10, 2014

i'm getting cryptic error messages for the following code:

class MyChar implements CharSequence{
private String s;

public MyChar(String input)
{
StringBuilder b = new StringBuilder(input);
b.reverse();
this.s = b.toString();

[code]....

it's telling me something's wrong with the class modifier and that my class can't implement chart

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Seating Plan / Chart

Sep 15, 2014

I want to develop a seating chart/plan where people can pick their seat etc. I have developed the UML diagrams etc for this project and want to start with a console version before developing a GUI version. Eventually I want to create a website where users can log in and reserve their seats etc.

Without sounding like I'm putting the cart before the horse, I want to know what Java technologies I will need to develop the final part of the project. At the moment I'm using Eclipse for getting through the Java text books.

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Feb 18, 2015

I want to plot an administrative chart(flow chart of an organization) and I truly do not not know how to start.

* Collect data from database
* use jgraph or any other api to create the flow chart.

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Print Array Asterisk Bar Chart

Jul 6, 2014

I am trying to get this program to take 5 integers from a user and print a bar chart made of asterisks. The only way I've been able to access the values stored in the array is when my loops are nested, but this keeps my output from printing the way I would like it to.

It prints:
Enter a number:
2
**
Enter a number...and so on

I want it to take the values say(2,3,5,8,4) and do this:
**
***
*****
********
****

public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner in = new Scanner(System.in);
int[] barArray = new int[5];
for(int i =0; i < barArray.length; i++){
System.out.println("Enter a number: ");
barArray[i] = in.nextInt();
for(int j = 0; j < barArray[i]; j++){
System.out.print("* ");
}System.out.println("");
in.close();
}
}

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Pass Parameter To JavaFX Pie Chart

Jul 25, 2014

I have this class and I want to pass "pergunta" from another class:

Java Code:

here* = if I put a number, the code works. I want to receive the parameter "pergunta" here but I can't put a parameter in start .

I want to populate the array pergunta in a previous class and use in this one.

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.scene.chart.*;
import javafx.scene.Group;

[code]....

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JavaFX 2.0 :: Horizontal Stacked Bar Chart

Sep 14, 2014

Using the sample, I tried to create a horizontal stacked bar chart, but it didn't render correctly.  Only a sliver of one bar shows and cosmetically the bar's rounded corners are at the top instead of the right side.
 
    @Override
    public void start(Stage primaryStage) {
        String austria = "Austria";
        String brazil = "Brazil";
        NumberAxis xAxis = new NumberAxis();
        xAxis.setLabel("Value");
        xAxis.setTickLabelRotation(90);

[Code] ....
 
Oddly, if I change the second series to this, then only one bar shows:
 
        series2.getData().add(new XYChart.Data(10, austria));
        series2.getData().add(new XYChart.Data(15, brazil));

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JSF :: How To Save Chart Into JPEG Image When Using Primeface

Feb 26, 2014

<p:barChart id="category" value="#{machineReport.barChart}"
rendered="#{machineReport.isGraphical}" legendPosition="e"
title="Performance Chart" minY="0" maxY="40" minX="0" maxX="40"
xaxisLabel="Total Time" yaxisLabel="Total Pieces"
style="height:500px;width:700px;" />

[code] ....

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Mar 20, 2015

I'm struggling to change the colour of the X and Y axis. I can change the colour of the ticks and the tick labels in CSS... But not the axis themselves.

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Monthly Temperature Chart Of Two Places - Array / While Loops

May 29, 2014

I started taking a java programming class javascript eclipse The program says it wants a monthly temperature chart of two places..Declare an array of values for Blueville temperatures and another array for Orlando temperatures. Then, use what you have learned to produce a program to output the following table:

Blueville Monthly temperatures

jan feb mar apr may jun jul aug sep oct nov dec

3 3 5 10 16 20 24 23 16 10 5 3

Orlando Monthly Temperatures

jan feb mar apr may jun jul aug sep oct nov dec

14 16 12 23 24 25 27 30 25 22 17 15

The warmest month in Blueville is _______

The warmest month in Orlando is ________

The month with the greatest temperature spread is __________

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Swing/AWT/SWT :: Simple GUI Task - Draw Pie Chart With Different Colors

Jan 31, 2014

Simple gui task. it meant to draw pie chart with different colors. i can't seem to find a mistake in it. It works if i put in g2g.draw(arc) i know arcs overlaps a bit due int conversion, but that's ok.

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import java.awt.geom.Arc2D;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Color;

[Code] ....

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Oct 21, 2014

Write a program that reads a sequence of input values and displays a bar chart of the values, using asterisks, like this:

********************** **************************************** **************************** ************************** **************

You may assume that all values are positive. First figure out the maximum value. That value's bar should be drawn with 40 asterisks. Shorter bars should use proportionally fewer asterisks.

import java.util.Scanner;
import java.util.ArrayList;
import java.util.Arrays;
public class Array717
{
public static void main( String[] args )

[Code] ....

The problem is that all this code does is print 1 line of *'s and what seems to be thousands of them

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Aug 27, 2014

I want to develop a dynamic scheduling application that I hope to use at work, but I have some questions about the design approach since this is my first undertaking of this kind of project.

The purpose of the application is to display a chart showing the lesson times for a particular teacher and her students.

Here's are more important details:

-The chart displays the current day's schedule.
-The top row displays the teacher's name. There are at least 4 teachers each day.
-The leftmost column shows the times (from 3:00 to 8:00).
-The table is filled with the names of the students.

My current problem is deciding on the best approach to storing this data containing the teacher and her students and times. I should also note that there are about 500 students and around 20 teachers (i.e. the dataset is small). Is this a problem solved using a database and JDBC or could I just write the data to file? Are there other approaches that would solve this problem?

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Jan 15, 2014

just started programming in Java. My goal in this part of code was to read out the first array, while saving the number of the chart in the array to a new array.

first question: is the code clean and the method correct?

2nd question: i get an error when i try to print the newInt Array for no apparent reason.

Java Code:

public class viereinsdiezweite {
public static void main(String[] args){
int[] newInt = new int[20];
int specialInt = 3;
int[] bigInt = new int[]

[code]....

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Jun 18, 2014

The problem is as follows: I've been running java script using git bash and at one point it tells me that I need to increase heap size because apparently it takes more than 1gb to run. However although I manually increase it via control panel>programs>java nothing changes. I've been told that I need to ' figure out how to use 64bit java (and a VM that supports 64bit) in order to increase the maximum memory allocation (heap size) to something north of 2g.'

My laptop has 8GB worth of RAM (Windows 7)so it shouldn't technically have problems running anything above 1G. But there is apparently a 1GB wall But increasing the heap size to above 2G results in an error stating that VM doesn't initialize within git bash, I thought that my java is 32 bit so I downloaded a 64 bit java. Now how and if it is even possible to allocate a program to run under 64 bit java and if I should delete the other java version.

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Dec 13, 2014

how does recursion works, I don't understand why it prints al numbers going up again?This is the code

void print2(int n){
if (n<0){
out.printf(" %d",-1);
return;
}
out.printf(" %d", n);
print2(n-1)
out.printf(" %d", n);
}

this should be the output if n is 6: 6 5 4 3 2 1 0 -1 0 1 2 3 4 5 6.

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Mar 5, 2014

a buffer reader , how does it work and what is the code for it ?

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Oct 9, 2014

I've got a panel which an arbitrary number of text fields may be added to at run time. I've got it set up so that the window's height, and the height of the panel in which the fields appear will never exceed the height of the screen.What I don't have is a way to make the panel scroll to access the fields that are being visually truncated. I'm setting the autoscrolls on the panel to true, but when I run the program, the fields are simply truncated.

pnlDeclensions.setAutoscrolls(true);

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