No pressure Gerrit, I showed my coworkers some of your work. One of them has asked if creating a flow circle graph is doable. This is something that would be really killer for connection-driven flow problems (e.g. transportation, trade economics, etc).

What do you think?

• added the option to set a StringConverter for number display
• added getValueForDisplay() method as in standard axis
• disabled overwriting of custom tick space values in calcAutoScale() (not a final fix but to avoid overwriting user values til solution)
• matching updates in AxisBuilder

via setting minValue or/and maxValue at axis, axis stays at the same range. but if drag the application window - it will be updated and apply new values

Hi Gerrit!

Could you please implement a SelectionEvent for the SankeyPlot chart (like you've done for the ArcChart) so that when the user clicks a on the chart connections (or endpoints) then the event would contain the in/out connection ?

Best regards and keep up the great work ! Carstein

Image a graph displaying some data from the last X days. Where some data is not available for whatever reason.

It would be great, if we could display a "broken" line etc. indicating the data point is actually missing instead of missing either a day or set the data to a zero value, so the line just drops to the bottom - which is not the same as "there is no data".

I propose to allow to set "empty" data items that specifically exist only to allow the graph to be incomplete.

Hi there (again) :D Thanks again for the quick implementation of issue #74 . I am very happy with it :)

I have one more wish, if that's not too much to ask for. I´d like to have another StringProperty on the chartitem (and another constructor). Heres why: i got some data that i want to show on the coxcombchart that has a very long name. i´d like to show a "succintly name" on the chart and on a label (where obviously would be enough space of showing it), the "long name".

Basically all i´d need is a stringproperty on the chartitem, a constructor so i can fill it and a getter for the new StringProperty. The constructor should look something like this: public ChartItem(String NAME, double VALUE, String LONGNAME, Color FILL) "LONGNAME" might not be the best choice of name, but i think you get what i mean :D

this seems more like an feature request (for which I did not find the possibility).

Hello Gerrit,

In the latest Release is a Bug.

In CirularPlot.java line 674: Connection connection = getConnection(item, outgoingItem); Is trying to get a Connection that should be there but returns null.

line 704: connection.setTooltipText(tooltipText); Is now trying to set the Tooltip for null.

The Problem is reproducible in the CircularPlotTest class by enabling the currently commented out Outgoings.

@Override public void init() {
    // Setup Data
    // Wahlberechtigte 61_500_000
    PlotItem australia = new PlotItem("AUSTRALIA", 1_250_000, Color.rgb(255, 51, 51));
    PlotItem india     = new PlotItem("INDIA", 750_000, Color.rgb(255, 153, 51));
    PlotItem china     = new PlotItem("CHINA", 920_000, Color.rgb(255, 255, 51));
    PlotItem japan     = new PlotItem("JAPAN", 1_060_000, Color.rgb(153, 255, 51));
    PlotItem thailand  = new PlotItem("THAILAND", 720_000, Color.rgb(51, 255, 51));
    PlotItem singapore = new PlotItem("SINGAPORE", 800_000, Color.rgb(51, 255, 153));

    // Travel flow
    australia.addToOutgoing(india, 150_000);
    australia.addToOutgoing(china, 90_000);
    australia.addToOutgoing(japan, 180_000);
    australia.addToOutgoing(thailand, 15_000);
    australia.addToOutgoing(singapore, 10_000);

    japan.addToOutgoing(australia, 70_000);

    List<PlotItem> items = List.of(australia, india, china, japan, thailand, singapore );

    // Register listeners to click on connections and items
    items.forEach(item -> {
        item.addItemEventListener(e -> {
            switch (e.getEventType()) {
                case SELECTED: System.out.println("Selected: " + e.getItem().getName()); break;
            }
        });
    });

    
    india.addToOutgoing(australia, 35_000);
    india.addToOutgoing(china, 10_000);
    india.addToOutgoing(japan, 40_000);
    india.addToOutgoing(thailand, 25_000);
    india.addToOutgoing(singapore, 8_000);

    china.addToOutgoing(australia, 10_000);
    china.addToOutgoing(india, 7_000);
    china.addToOutgoing(japan, 40_000);
    china.addToOutgoing(thailand, 5_000);
    china.addToOutgoing(singapore, 4_000);

    japan.addToOutgoing(australia, 7_000);
    japan.addToOutgoing(india, 8_000);
    japan.addToOutgoing(china, 175_000);
    japan.addToOutgoing(thailand, 11_000);
    japan.addToOutgoing(singapore, 18_000);

    thailand.addToOutgoing(australia, 70_000);
    thailand.addToOutgoing(india, 30_000);
    thailand.addToOutgoing(china, 22_000);
    thailand.addToOutgoing(japan, 120_000);
    thailand.addToOutgoing(singapore, 40_000);

    singapore.addToOutgoing(australia, 60_000);
    singapore.addToOutgoing(india, 90_000);
    singapore.addToOutgoing(china, 110_000);
    singapore.addToOutgoing(japan, 14_000);
    singapore.addToOutgoing(thailand, 30_000);
    

    // Setup Chart
    circluarPlot = CircularPlotBuilder.create()
                                      .prefSize(500, 500)
                                      .items(items)
                                      .connectionOpacity(0.75)
                                      .decimals(0)
                                      .minorTickMarksVisible(false)
                                      .build();

    ConnectionEventListener connectionListener = e -> System.out.println("From: " + e.getConnection().getOutgoingItem().getName() + " -> to: " + e.getConnection().getIncomingItem().getName() + " -> Value: " + e.getConnection().getValue());
    circluarPlot.getConnections().forEach(connection -> connection.addConnectionEventListener(connectionListener));

    if (null != circluarPlot.getConnection(australia, japan)) {
        circluarPlot.getConnection(australia, japan).setFill(Color.BLUE);
        circluarPlot.getConnection(australia, india).setFill(Color.CHOCOLATE);
        circluarPlot.getConnection(japan, australia).setFill(Color.POWDERBLUE);
    }
    circluarPlot.getConnections().forEach(connection -> {
        System.out.println(connection.getOutgoingItem().getName() + " -> " + connection.getIncomingItem().getName() + " -> Value: " + connection.getValue() + " -> Color: " + connection.getFill());
    });
}

Hello Gerrit,

I have a Question to the CircularPlot and PlotItems.

Example: I have 10 PlotItems and add those to the CircularPlot. The CircularPlot gets drawn with these 10 PlotItems. Now I want to click any PlotItem and trigger the ItemEvent of this specific PlotItem. This way I could Identify the specific PlotItem.

Is this already possible or is it planned?

I've got a crippling need for a Parallel Coordinates plot on our JavaFX/TornadoFX desktop application.

Parallel Coordinates Plots (PCPs) are a very simple abstraction on a standard many-column matrix. A PCP graphs each row in the table as a horizontal line across the chart. Each column is represented as a vertical axies, and where that axis intersects each horizontal line, the height of the intersection from the bottom fo the chart is proportional to that rows value at that column.

A picture is worth a thousand words:

Our applications Parallel Coordinates chart:

The corresponding Matrix:

a D3JS implementation: https://bl.ocks.org/jasondavies/1341281

Parallel Coordintes represents a superbly general chart as it allows you to graphically represent data at arbitrarily high dimensionality.

There is a long list of features such a chart might have, which I'll outline below.

Our implementation is not worth sharing primarily because its use of bindings is ~~inefficient~~ abusive. We write an optimization algorithm which can redline the CPU for prolonged periods of time, but in many cases our profiling has indicated that the actual problematic hot loop is binding updates for our PCP implementation. Thus we would very much like another one, but we simply cant afford the time it would take to re-write it.

shameless plug: find out more about this product at empowerops.com

Do you have any plans to create a Pareto Chart? This is a very common bar chart used in industry to plot the N largest items by count or percentage decreasing left to right. A line chart showing cumulative values is superimposed on the bar chart thus increasing left to right. Clicking on a bar provides an event for "drilling down" into more detail.

Hello :) I rellay like the CoxCombChart, but i see no way of customizing it (or am i wrong?!).

Basically i´d like to change the MouseEvent from MOUSE_PRESSED to MOUSE_ENTERED. I´d also like to add something to the "...%" text on the ChartItems and change the size and text on the canvas showing after the MOUSE_PRESSED-Event.

Currently, just configuring (not executing) the Gradle build already requires credentials for publishing, as these are evaluated eagerly during configuration phase, see

https://github.com/HanSolo/charts/blob/258f877b8462ff8d3bdd36ed9ba9648654212497/build.gradle#L149-L152

and

https://github.com/HanSolo/charts/blob/258f877b8462ff8d3bdd36ed9ba9648654212497/build.gradle#L157-L160

To avoid that, it's probably better to follow the best practice of using the PasswordCredentials class with the built-in mySecureRepositoryUsername / mySecureRepositoryPassword properties.

See https://github.com/HanSolo/charts#area-line-dot-and-ring-chart / https://camo.githubusercontent.com/32dfa09a8be3401c323a7fc55fe3c6817556cdce770ffe97f38b659a50db5036/68747470733a2f2f692e6962622e636f2f326366714b38342f4368617274732d323032302d30392d30342d30372d34382d32342e706e67.

Hello, using the heatmap when I set all dots equivalent with single color, I got some view artifact of horizontal waves. For example if all dots of heat map are red ("0xff0a00ff")

I fixed the color and rangeZ bounds to be sure, but no success. I'd like to get a solid color among all dots without artifacts

hi! using heatmap matrix (version 17.1.25) from the example IDE highlights error over import eu.hansolo.fx.heatmap.ColorMapping; - Cannot resolve symbol 'ColorMapping'

but the jar 'heat,ap-17.0.12.jar' is in the gradle project dependencies.

Hello, if i need to clear dots in chart for a while (in case of dynamic charts building via XYSeriesBuilder with empty items and calling clear()on items causes

Exception in thread "JavaFX Application Thread" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
	at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
	at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
	at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248)
	at java.base/java.util.Objects.checkIndex(Objects.java:372)
	at java.base/java.util.ArrayList.get(ArrayList.java:459)
	at javafx.base/com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89)
	at eu.hansolo.fx.charts.XYPane.drawLine(XYPane.java:717)
	at eu.hansolo.fx.charts.XYPane.drawChart(XYPane.java:675)
	at eu.hansolo.fx.charts.XYPane.redraw(XYPane.java:636)
	at eu.hansolo.fx.charts.XYPane.lambda$registerListeners$8(XYPane.java:229)
	at eu.hansolo.fx.charts.series.Series.fireSeriesEvent(Series.java:467)
	at eu.hansolo.fx.charts.series.Series.lambda$new$0(Series.java:134)
	at javafx.base/com.sun.javafx.collections.ListListenerHelper$Generic.fireValueChangedEvent(ListListenerHelper.java:329)
	at javafx.base/com.sun.javafx.collections.ListListenerHelper.fireValueChangedEvent(ListListenerHelper.java:73)
	at javafx.base/javafx.collections.ObservableListBase.fireChange(ObservableListBase.java:233)
	at javafx.base/javafx.collections.ListChangeBuilder.commit(ListChangeBuilder.java:482)
	at javafx.base/javafx.collections.ListChangeBuilder.endChange(ListChangeBuilder.java:541)
	at javafx.base/javafx.collections.ObservableListBase.endChange(ObservableListBase.java:205)
	at javafx.base/com.sun.javafx.collections.ObservableListWrapper.clear(ObservableListWrapper.java:157)

is that normal?