jfreechart

问题 I'm creating a TimeSeries chart with 2 TimeSeries es in it (i.e. A Dataset holding 2 TimeSeries objects. It happens that both TimeSeries objects holds the same exact values and they are simply overlapping but that's not clear to the client as he only sees the result color or mixing the colors of both TimeSeries objects ! So he's seeing that the chart is displaying 2 sets of data, while only one line is drawn ! Is their a build-in way to deal with that ? How would you fix that ? Personally I'm

问题 Is there a way to get plot list added to CombinedDomainXYPlot if I don't keep any references to them? I'd like to get there plots, work with them and possibly remove them from the compined plot. This is example code for adding plots to CombinedDomainXYPlot: // axis DateAxis domainAxis = new DateAxis("Date"); // plot container CombinedDomainXYPlot plotCombined = new CombinedDomainXYPlot(domainAxis); // plot 1 XYPlot plot1 = new XYPlot(); plot1.setDomainAxis(domainAxis); plotCombined.add(plot1)

问题 In bar chart, I want to use hyperlinks for every color(or segment). To make this I need to use Image MAP (using Jfree chart). My code is creating image through Jfree chart, but I also want individual hyperlink with every color code. Can you please advice how I can get coordinates from Jfree chart's image based on color code or row key or column key. public class Demo { public static void main(String arg[]) throws IOException{ DefaultCategoryDataset result = new DefaultCategoryDataset();

问题 I am trying to add the following Font to my JFreeChart title: http://www.urbanfonts.com/fonts/Back_to_Bay_6.htm Trying to achieve this with the code: InputStream is = new FileInputStream("backtobay.ttf"); java.awt.Font customFont = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, is); customFont = customFont.deriveFont(24f); chart.getTitle().setFont(customFont); Ends up with a normal font: Any ideas why? Is it possible it has something to do that I am running Mac? public class

问题 CandleStick charts have been developed both using JavaFx(using CSS and extending XYChart and creating candle using Region and line) and JFree charting library. But memory usage in Jfree(400 Mb) is far less comapred to javafx(2.5Gb). (Data is taken after runing both for 2 hours using JConsole) AdvCandleStickChartSample /** * Copyright (c) 2008, 2012 Oracle and/or its affiliates. * All rights reserved. Use is subject to license terms. */ import javafx.application.Application; import javafx

问题 Is it possible to find the intersection points of two series in JFreeChart? The chart series that are intersecting don't have any common points among them. So, the intersection point needs to be calculated for two series that happens to intersect each other on the graph. List<Line> lineOne = one.getItems(); List<Line> lineTwo = two.getItems(); for (Line i : lineOne) { for (Line j : lineTwo) { if (i.intersection(j) != null) { System.out.println(i.intersection(j)); } } } The code above is what

问题 This is my DialPlot class: public class Demo { private DefaultValueDataset dataset = new DefaultValueDataset(0); private ChartPanel buildDialPlot(int minimumValue=0,int maximumValue,int majorTickGap) { DialPlot plot = new DialPlot(dataset); plot.setDialFrame(new StandardDialFrame()); plot.addLayer(new DialValueIndicator(0)); plot.addLayer(new DialPointer.Pointer()); int redLine =maximumValue / 5 + 10; plot.addLayer(new StandardDialRange(maximumValue, redLine, Color.blue)); plot.addLayer(new

问题 I am creating a correlation matrix in JFreeChart. I'm nearly done except that both axes have number values (i: say 1 to 20). I use DefaultXYZDataset and a customized BlockRenderer with a overridden PaintScale Class. The value z itself is represented by the colour of a filled rectangle at the positions (x,y) in ([1 to 20], [1 to 20]). Is it possible to replace the axis labels on X and Y by a String e.g. names[i]? To achieve this, have I to change the NumberAxes into CategoryAxes? Both axes

问题 I am using JFreeChart. When i click on a Legend item i have put a listener. In the listener i make the series that was clicked invisble. But as a side effect the series also vanishes from the Legend. I do not want the series to vanish from the legend. What can i do so that i can show/hide series on the plot but not affect the legend. Setting the Legend to be fixed using plot.setFixedLegendItems(list) cause other mouse effects to stop working (on mouse over of data point the series line

问题 I have this line chart and want to make it a bar chart, but I'm new to Java and am not knowing if it possible since the x-axis is TimeSeries . This is the code I have that visualizes the line chart: public class Time { private static Time INSTANCE; public static boolean isInitialized = false; private Marker marker; private Long markerStart; private Long markerEnd; private XYPlot plot; long last_lowerBound; long last_upperBound; @Inject public Time() { } Composite comp; TimeSeriesCollection