Develop Reference

How would I create a table displaying the x and y values of the Spinners?

I would like to create a table which is by the right side of the graph which shows 2 columns of what x and y values have been inputted into the xSpin and ySpin spinners. I have drawn a picture of where I would like the table to reside. I have tried using textboxes in a grid pane layout to create a table and inputting the values directly into a grid of text boxes, however I couldn't add them individually to the series.
.
package Grava;
public class ScatterAdd extends Application {
private final XYSeries series = new XYSeries("Voltage");
private final XYSeries trend = new XYSeries("Trend");
private final XYSeriesCollection dataset = new XYSeriesCollection(series);
ChoiceBox<String> domainLabels = new ChoiceBox<>();
ChoiceBox<String> rangeLabels = new ChoiceBox<>();
private JFreeChart createChart() {
return ChartFactory.createScatterPlot("VI Characteristics", "Current", "Voltage", dataset);
}
#Override
public void start(Stage stage) {
Image image = new Image("Grava.logo.png");
stage.getIcons().add(image);
var chart = createChart();
XYPlot plot = chart.getXYPlot();
plot.setDomainCrosshairVisible(true);
plot.setRangeCrosshairVisible(true);
XYLineAndShapeRenderer r = (XYLineAndShapeRenderer) plot.getRenderer();
r.setSeriesLinesVisible(1, Boolean.TRUE);
r.setSeriesShapesVisible(1, Boolean.FALSE);
var equation = new TextField();
series.addChangeListener((event) -> {
if (series.getItemCount() > 1) {
double[] coefficients = Regression.getOLSRegression(dataset, 0);
double b = coefficients[0]; // intercept
double m = coefficients[1]; // slope
equation.setText("y = " + m + " x + " + b);
double x = series.getDataItem(0).getXValue();
trend.clear();
trend.add(x, m * x + b);
x = series.getDataItem(series.getItemCount() - 1).getXValue();
trend.add(x, m * x + b);
dataset.addSeries(trend);
}
});
domainLabels.getSelectionModel().selectedItemProperty().addListener((ov, s0, s1) -> {
chart.getXYPlot().getDomainAxis().setLabel(s1);
});
rangeLabels.getSelectionModel().selectedItemProperty().addListener((ov, s0, s1) -> {
chart.getXYPlot().getRangeAxis().setLabel(s1);
});
domainLabels.getItems().addAll("Current", "Seconds");
domainLabels.setValue("Current");
rangeLabels.getItems().addAll("Voltage", "Metres");
rangeLabels.setValue("Voltage");
var xSpin = new Spinner<Double>(-10000000.000, 10000000.000, 0, 0.1);
xSpin.setEditable(true);
xSpin.setPromptText("Xvalue");
var ySpin = new Spinner<Double>(-10000000.000, 10000000.000, 0, 0.1);
ySpin.setEditable(true);
ySpin.setPromptText("Yvalue");
var button = new Button("Add");
button.setOnAction(ae -> series.add(xSpin.getValue(), ySpin.getValue()));
HBox xBox = new HBox();
xBox.getChildren().addAll(domainLabels);
HBox yBox = new HBox();
yBox.getChildren().addAll(rangeLabels);
var enter = new ToolBar(xBox, xSpin, yBox, ySpin, button, equation);
BorderPane.setAlignment(enter, Pos.CENTER);
BorderPane root = new BorderPane();
root.setCenter(new ChartViewer(chart));
root.setBottom(enter);
stage.setTitle("ScatterAdd");
stage.setScene(new Scene(root, 720, 480));
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}

Inappropriate view of x-axis labels in jfreecharts.

I have an issue with my jfreechart graph. Actually at x-axis the value are in big numbers (i-e 1500-2000) and the amounts of these values are also too large (i.e in significant notation).So the chart is just showing a dashed line instead of values at x-axis.
public static byte[] createImageByXyChart(String str_chartLabel,
String str_xAxisLabel, String str_yAxisLabel,
String str_fileFormat, Integer i_height, Integer i_width,
List<double[]> co_ordinates) throws IOException {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
for (int i = 0; i < co_ordinates.size(); i++) {
double[] xy_coOrdinates = co_ordinates.get(i);
double xCoordiate = xy_coOrdinates[0];
double yCoordiate = xy_coOrdinates[1];
dataset.setValue(yCoordiate, str_chartLabel, "" + xCoordiate);
}
JFreeChart chart =
ChartFactory.createLineChart(str_chartLabel,str_xAxisLabel,
str_yAxisLabel, dataset);
CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setBackgroundPaint(Color.white);
plot.setRangePannable(true);
plot.setRangeGridlinesVisible(true);
plot.setDomainGridlinesVisible(true);
plot.setDomainGridlineStroke(new BasicStroke(1.0f));
plot.setRangeGridlineStroke(new BasicStroke(1.0f));
plot.setDomainGridlinePaint(Color.GRAY.brighter());
plot.setRangeGridlinePaint(Color.GRAY.brighter());
ChartPanel panel = new ChartPanel(chart);
JFrame frame = new JFrame("Show chart");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(panel);
frame.setSize(600, 600);
frame.setVisible(true);
return null;
}
public static void main(String[] arg) throws Exception {
System.out.println("########################### ");
File fileData = new File("curve.txt");
BufferedReader br = new BufferedReader(new FileReader(fileData));
List<double[]> co_ordinates = new ArrayList<double[]>();
String line = null;
while ((line = br.readLine()) != null) {
String[] abcd = line.split(",");
double[] xy_cor = new double[2];
NumberFormat df = new DecimalFormat("######.####");
xy_cor[0] = Double.parseDouble(df.format(Double
.parseDouble(abcd[0])));
System.out.println(xy_cor[0]);
xy_cor[1] = Double.parseDouble(abcd[1]);
System.out.println(Arrays.toString(xy_cor));
co_ordinates.add(xy_cor);
}
br.close();
String str_chartLaber = "Curve";
String str_xAxisLabel = "Time(s)";
String str_yAxisLaber = "Accelaration (mm_per__s_2)";
String str_fileFormate = ImageFormats.JPEG;
Integer heigth = 1800;
Integer width = 1080;
byte[] image_bytes = ImageUtils.createImageByXyChart(str_chartLaber,
str_xAxisLabel, str_yAxisLaber, str_fileFormate, heigth, width,
co_ordinates);
}
the input data is that
Heading

i use
XYDataset dataset ;
instead of
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
The XYDataset enable auto interval where DefaultCategoryDataset do not.I don't know the reason but it is.

Android : the graph is not sync with the pointstyle in CubicLineChart achartengine

I am trying to create a curve graph using the function in the library CubicLineChart Achartengine, but the point with a line is not fused as shown below:
I added more smooth in my chart, but the line with points farther away, this is my code :
onPaint(){
XYMultipleSeriesDataset mDataset = new XYMultipleSeriesDataset();
XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer();
XYSeries mCurrentSeries = null;
XYSeriesRenderer mCurrentRenderer;
String [] bulan= {"jan", "feb", "mar", "apr", "jun", "jul", "agt", "sep", "okt", "nov", "des"};
int[] colors = new int[] { Color.RED, Color.GREEN};
PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.CIRCLE};
// mDataset.removeSeries(mCurrentSeries);
mRenderer = new XYMultipleSeriesRenderer();
mRenderer.setAxisTitleTextSize(14);
mRenderer.setChartTitleTextSize(14);
mRenderer.setLabelsTextSize(15);
mRenderer.setLegendTextSize(15);
mRenderer.setMargins(new int[] { 0, 15, 10, 0 });
mRenderer.setZoomButtonsVisible(false);//untuk hilangin zoomnya
mRenderer.setPanEnabled(false, false);
mRenderer.setZoomEnabled(false, false);
mRenderer.setPointSize(2f);
mRenderer.setMarginsColor(Color.TRANSPARENT);
mRenderer.setShowGrid(true);
String seriesTitle = "";
XYSeries series = new XYSeries(seriesTitle);
mDataset.addSeries(series);
mCurrentSeries = series;
XYSeriesRenderer renderer = new XYSeriesRenderer();
renderer.setFillBelowLine(true);
renderer.setFillBelowLineColor(Color.TRANSPARENT);
renderer.setColor(Color.BLUE);
renderer.setPointStyle(PointStyle.CIRCLE);
mRenderer.addSeriesRenderer(renderer);
mRenderer.setInScroll(true);
mRenderer.setShowLegend(false);
mRenderer.setShowGridX(true);
mRenderer.setShowGridY(false);
mRenderer.setXLabels(bulan.length);
mRenderer.setYLabels(5);
mRenderer.setMarginsColor(Color.argb(0x00, 0x01, 0x01, 0x01));//hilangin background hitam disekeliling grafik
renderer.setFillPoints(true);
mCurrentRenderer = renderer;
for (int i = 0; i < bulan.length; i++) {
mCurrentSeries.add(i,jumlah[i]);
}
if (mChartView != null) {
piechart.removeView(mChartView);
}
mChartView = ChartFactory.getCubeLineChartView(applicationContext, mDataset, mRenderer, 0.17f);
piechart.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
pw_kn.showAtLocation(popUpKN, Gravity.CENTER, 0, 0);
}
is there something wrong with my code?

How to adjust the xand y axis line in jfreecharts

In my jfree line chart the x and y axis line is drawn seperated.. I need to get both the axis meet at the orgin.
Here is the Actual Image im getting from jfree line chart
How to join the two axis line at the orgin in jfree line chart...
I've tried by using this code sample
final DefaultCategoryDataset lineDataset = new DefaultCategoryDataset();
lineDataset.addValue(10, "Dep", "2009");
lineDataset.addValue(11, "Dep", "2010");
lineDataset.addValue(10, "Dep", "2011");
lineDataset.addValue(10, "Dep", "2012");
lineDataset.addValue(7, "Dia", "2009");
lineDataset.addValue(7, "Dia", "2010");
lineDataset.addValue(7, "Dia", "2011");
lineDataset.addValue(7, "Dia", "2012");
lineDataset.addValue(3, "HD", "2009");
lineDataset.addValue(3, "HD", "2010");
lineDataset.addValue(3, "HD", "2011");
lineDataset.addValue(3, "HD", "2012");
lineDataset.addValue(16, "HBP", "2009");
lineDataset.addValue(15, "HBP", "2010");
lineDataset.addValue(18, "HBP", "2011");
lineDataset.addValue(17, "HBP", "2012");
lineDataset.addValue(16, "HC", "2009");
lineDataset.addValue(15, "HC", "2010");
lineDataset.addValue(16, "HC", "2011");
lineDataset.addValue(16, "HC", "2012");
lineDataset.addValue(6, "LBP", "2009");
lineDataset.addValue(7, "LBP", "2010");
lineDataset.addValue(6, "LBP", "2011");
lineDataset.addValue(6, "LBP", "2012");
final JFreeChart chart = ChartFactory.createLineChart(
"", // chart title
"", // domain axis label
"", // range axis label
lineDataset, // data
PlotOrientation.VERTICAL, // orientation
false, // include legend
false, // tooltips
false // urls
);
chart.setBackgroundPaint(Color.WHITE);
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setBackgroundPaint(Color.WHITE);
plot.setOutlineVisible(false);
plot.setRangeGridlinePaint(Color.white);
final CategoryAxis categoryAxis = plot.getDomainAxis();
categoryAxis.setAxisLineVisible(true);
categoryAxis.setTickMarksVisible(false);
categoryAxis.setMaximumCategoryLabelLines(2);
categoryAxis.setLowerMargin(-0.1);
categoryAxis.setTickLabelPaint(Color.decode("#222222"));
chart.setPadding(new RectangleInsets(0, -8, 0, 0));
// categoryAxis.setTickLabelFont(font);
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setVisible(true);
// rangeAxis.setRange(minRange, maxRange);
// rangeAxis.setTickUnit(new NumberTickUnit(2));
rangeAxis.setTickLabelsVisible(true);
rangeAxis.setLowerMargin(1);
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
renderer.setBaseShapesVisible(true);
renderer.setBaseShapesFilled(true);
renderer.setSeriesStroke(0, new BasicStroke(1.2f));
renderer.setSeriesItemLabelsVisible(1, Boolean.TRUE);
Shape circle = new Ellipse2D.Double(-3, -3, 6, 6);
renderer.setSeriesShape(0, circle);
renderer.setSeriesShape(1, circle);
renderer.setSeriesShape(2, circle);
renderer.setSeriesShape(3, circle);
renderer.setSeriesShape(4, circle);
renderer.setSeriesShape(5, circle);
// renderer.setBaseItemLabelGenerator(new CustomLabelGenerator());
renderer.setItemLabelAnchorOffset(-5);
renderer.setBaseItemLabelsVisible(true);
plot.getRenderer().setSeriesPaint(0, Color.decode("#4E7AD3"));
plot.getRenderer().setSeriesPaint(1, Color.decode("#DC3912"));
plot.getRenderer().setSeriesPaint(2, Color.decode("#FF9900"));
plot.getRenderer().setSeriesPaint(3, Color.decode("#109618"));
plot.getRenderer().setSeriesPaint(4, Color.decode("#990099"));
plot.getRenderer().setSeriesPaint(5, Color.decode("#0099C6"));
// renderer.setBaseItemLabelFont(font);
// plot.getRenderer().setSeriesPaint(1, Color.WHITE);
try {
BufferedImage bi;
bi = chart.createBufferedImage(300, 100);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bi, "png", baos);
byte[] byteArray = baos.toByteArray();
// rangeAxis.setRangeWithMargins(min(min), max(max));
String rootpath = this.getRootPath();
String imagePath = rootpath + TEMP_FILE_PATH + File.separator + "HighLightGraph_" + 1 + ".png";
System.out.println("=========imagePath============"+imagePath);
ChartUtilities.saveChartAsPNG(new File(imagePath), chart, 500, 300);
// this.recordImageData("highlightChart" + "-" + "1", org.apache.catalina.util.Base64.encode(byteArray));
} catch (Exception e) {
}

Add the line:
plot.setAxisOffset(new RectangleInsets(0,0,0,0));
to your code after
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
Link to JFreeChart Java Doc

JFreeChart XYSeries as Strings

im working with jfreechart and try to make a XYLineChart which is working very well.
My problem is, that the y label are double values and i need strings.
My Code:
DefaultXYDataset result = new DefaultXYDataset();
XYSeries series1 = new XYSeries("Words");
series1.add(0, 0.3);
series1.add(1, 0.5);
series1.add(2, 0.6);
series1.add(3, 0.3);
series1.add(4, 0.2);
series1.add(5, 1);
result.addSeries(getTitle(), series1.toArray());
I want something like:
XYSeries series1 = new XYSeries("Words");
series1.add("word 1", 0.3);
series1.add("word 2", 0.5);
...
The updated code using Symbol-Axis:
private void test2() {
XYDataset dataset = createDataset2();
JFreeChart chart = createChart2(dataset, "NN");
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 250));
panel_visualize.add(chartPanel);
}
private DefaultXYDataset createDataset2()
{
DefaultXYDataset result = new DefaultXYDataset();
XYSeries series1 = new XYSeries("Words");
series1.add(0.3, 0);
series1.add(0.5, 1);
series1.add(0.6, 2);
series1.add(0.3, 3);
series1.add(0.2, 4);
result.addSeries(getTitle(), series1.toArray());
return result;
}
private JFreeChart createChart2(XYDataset dataset, String title)
{
JFreeChart chart = ChartFactory.createXYLineChart(title, // chart title
"Words",
"Activation",
dataset, // data
PlotOrientation.HORIZONTAL,
true, // include legend
true,
false);
XYPlot plot = (XYPlot) chart.getPlot();
plot.setForegroundAlpha(0.5f);
String[] grade = new String[5];
grade[0] = "Temp 0";
grade[1] = "Temp 1";
grade[2] = "Temp 2";
grade[3] = "Temp 3";
grade[4] = "Temp 4";
SymbolAxis rangeAxis = new SymbolAxis("Words", grade);
rangeAxis.setTickUnit(new NumberTickUnit(1));
rangeAxis.setRange(0,grade.length);
plot.setRangeAxis(rangeAxis);
return chart;
}

Using:
plot.setDomainAxis(rangeAxis);
solves my problem.
Thanks to trashgod for the help.