After evaluationg several options I decided to use a JavaScript library for showing plots in my Eclipse Plugin. As zvikico already suggested it is possible to show a html page in a browser. In the html page you can utilize one of the JavaScript libraries to do the actual plotting. If you use Chartist you can save the image as SVG file from the context menu.
Some JavaScript charting libraries:
Chartist: http://gionkunz.github.io/chartist-js
D3js: http://d3js.org
Flot: http://www.flotcharts.org/
Further JavaScript charting frameworks: https://en.wikipedia.org/wiki/Comparison_of_JavaScript_charting_frameworks
Chartist Example image:
Example java code:
package org.treez.results.chartist;
import java.net.URL;
import javafx.application.Application;
import javafx.concurrent.Worker;
import javafx.geometry.HPos;
import javafx.geometry.VPos;
import javafx.scene.Scene;
import javafx.scene.layout.Region;
import javafx.scene.paint.Color;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import netscape.javascript.JSObject;
public class WebViewSample extends Application {
private Scene scene;
@Override
public void start(Stage stage) {
// create the scene
stage.setTitle("Web View");
Browser browser = new Browser();
scene = new Scene(browser, 750, 500, Color.web("#666970"));
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
class Browser extends Region {
final WebView browser = new WebView();
final WebEngine webEngine = browser.getEngine();
public Browser() {
//add the web view to the scene
getChildren().add(browser);
//add finished listener
webEngine.getLoadWorker().stateProperty().addListener((obs, oldState, newState) -> {
if (newState == Worker.State.SUCCEEDED) {
executeJavaScript();
}
});
// load the web page
URL url = WebViewSample.class.getResource("chartist.html");
String urlPath = url.toExternalForm();
webEngine.load(urlPath);
}
private void executeJavaScript() {
String script = "var chartist = new Chartist.Line(" + "'#chart'," + " " + "{"
+ " labels: [1, 2, 3, 4, 5, 6, 7, 8]," + "series: [" + " [5, 9, 7, 8, 5, 3, 5, 44]" + "]" + "}, " + ""
+ "{" + " low: 0," + " showArea: true" + "}" + "" + ");" + " var get = function(){return chartist};";
webEngine.executeScript(script);
Object resultJs = webEngine.executeScript("get()");
//get line
JSObject line = (JSObject) resultJs;
String getKeys = "{var keys = [];for (var key in this) {keys.push(key);} keys;}";
JSObject linekeys = (JSObject) line.eval(getKeys);
JSObject options = (JSObject) line.eval("this.options");
JSObject optionkeys = (JSObject) options.eval(getKeys);
options.eval("this.showLine=false");
}
@Override
protected void layoutChildren() {
double w = getWidth();
double h = getHeight();
layoutInArea(browser, 0, 0, w, h, 0, HPos.CENTER, VPos.CENTER);
}
@Override
protected double computePrefWidth(double height) {
return 750;
}
@Override
protected double computePrefHeight(double width) {
return 500;
}
}
Example html page:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="chartist.min.css">
</head>
<body>
<div class="ct-chart" id="chart"></div>
<script type="text/javascript" src="chartist.js"></script>
</body>
</html>
In order to get this working, chartist.js and chartist.min.css need to be downloaded and put at the same location as the html file. You could also include them from the web. See here for another example:
https://www.snip2code.com/Snippet/233633/Chartist-js-example
Edit
I created a java wrapper for D3.js, see
https://github.com/stefaneidelloth/javafx-d3
