jfreechart

Java tooltip with image in JAR file

由 强颜欢笑 提交于 2019-12-01 11:10:29
问题 I'm using JFreeChart where I customized the chart's tooltip by implementing the XYToolTipGenerator interface. As the generateToolTip() method is supposed to return a String, here is what I did to show images in the tooltip: @Override public String generateToolTip(XYDataset dataset, int series, int item) { (...) return "<html><body><img src=\"file:resources/img/image.png\"></body></html>"; } While this works perfectly when executing directly from my IDE (Eclipse), it obviously fails when being

Read data from CSV file into ArrayList and display in XY Chart

由 落花浮王杯 提交于 2019-12-01 10:52:07
问题 I would like to display a temperature curve over time. I have now read a file, which is CSV-similar, that let me know the time and the temperature indicated. Now I want to use JFreeChart to display an XY graph from the values. The original data of the file looks as follows: utc,local,celsius 2017-07-12T07:02:53+00:00,2017-07-12T09:02:53+02:00,26.25 2017-07-12T08:02:54+00:00,2017-07-12T10:02:54+02:00,26.08 2017-07-12T09:02:55+00:00,2017-07-12T11:02:55+02:00,25.78 2017-07-12T10:02:56+00:00,2017

how to display customized values on a bar in bar chart using jfree chart?

由 99封情书 提交于 2019-12-01 10:49:10
By using StandardCategoryItemLabelGenerator() Iam able to display the exact range axis value on a bar, Now my problem is I dont want to display the range axis value instead I want to display some other value of that bar How I can achieve that? for (String IDS : idMap.keySet()) { List<String> listValues = idMap.get(IDS); if(listValues != null && listValues.get(1) != null) { dataSet.setValue(Double.valueOf(listValues.get(1)), "", IDS); } } JFreeChart chart = ChartFactory.createBarChart3D("", "", "Time taken ", dataSet,PlotOrientation.VERTICAL, true, true, false); chart.setTitle(new org.jfree

Dynamic tool tip generator - Jfreechart

由 一个人想着一个人 提交于 2019-12-01 10:40:40
I am generating a dynamic chart (XYLineChart) using jFreeChart and I have a field which is not included in the dataset. The field is generated dynamically. I want to include that in my tooltip. Is there any possibility I can do it ? Here is the flow of the program: Create Chart using an empty dataset. Set chartPanel. (I guess here is the place where we define the TooltipGenerator). Receive dynamic data from socket. Add data to the dataset. ( Here is the only place where I have the data which I need to have in my tooltip text). Refresh Chart. trashgod The name to be displayed is not included

jFreeChart: DateAxis to behave like a CategoryAxis. Only discrete datevalues to be printed

由 我的未来我决定 提交于 2019-12-01 09:53:59
问题 I have a TimeSeries Chart with a XYdataset which has the milliseconds of each dates. Now I want to have a chart that only displays each date one time on the axis, no matter what the range of dates is. I already got it so far, that only the date is printed, not the time (via setNumberFormatOverride() method). What I have now, is this: alt text http://dl.getdropbox.com/u/1144075/Bildschirmfoto%202010-08-05%20um%2016.51.39.JPG What I want, is this: alt text http://dl.getdropbox.com/u/1144075

JFreeChart: overlapping bars in XY chart that have the same value

由 人盡茶涼 提交于 2019-12-01 09:45:28
问题 I have this problem where 2 bars from a different series overlap each other when they have the same value. And I would like 1 of both on top of the other. Unfortunately, I want the one that is now in the back, up front : I already tried changing the order of the category expression, but to no avail. Anyone can tell me how I can get the orange bar on top of the blue one please ? 回答1: You may try DatasetRenderingOrder: XYPlot plot = jFreeChart.getXYPlot(); plot.setDatasetRenderingOrder

JFreeChart and Y-axis Units

由 吃可爱长大的小学妹 提交于 2019-12-01 09:15:25
I have a StackedXYAreaChart that looks like the following: How do I format the Y-axis units so that they are evenly spaced out and are displayed at certain intervals? For example, instead of displaying units in increments of 1 (e.g. 0, 1, 2, 3, ... 100 ), I want to display units in increments of 10 or 25 (e.g., 0, 25, 50, 75, 100 ). Thanks! I found a solution to my own question. I'm using a CustomTickUnit that formats numbers and adds units to the suffix, e.g. 1000000 becomes 1 GB . I set up my tick units with the following code, which spaced them out evenly and formatted them appropriately so

how to display customized values on a bar in bar chart using jfree chart?

由 ℡╲_俬逩灬. 提交于 2019-12-01 07:53:03
问题 By using StandardCategoryItemLabelGenerator() Iam able to display the exact range axis value on a bar, Now my problem is I dont want to display the range axis value instead I want to display some other value of that bar How I can achieve that? for (String IDS : idMap.keySet()) { List<String> listValues = idMap.get(IDS); if(listValues != null && listValues.get(1) != null) { dataSet.setValue(Double.valueOf(listValues.get(1)), "", IDS); } } JFreeChart chart = ChartFactory.createBarChart3D("", ""

JFreeChart StackedXYAreaRenderer causes “crimp” in chart

由 你说的曾经没有我的故事 提交于 2019-12-01 07:48:25
问题 I'm using JFreeChart to show a stacked line chart of two sets of data over time, in this example dogs and cats . import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import javax.swing.JFrame; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy

JFreeChart - XYBarChart Show Separate Bars for Each Series

由 冷暖自知 提交于 2019-12-01 07:34:44
I'm creating a XYBarChart using JFreeChart and adding multiple series to it. Currently for a given x-value and different Y-values from the series, all of them are getting stacked on top of each other. Would be possible to show each series as a different bar for a given x-value? Edit : I'm posting the relevant section of my code that is used to create the chart for your reference. Note that I cannot use CategoryDataset because this does not provide zooming capabilities on the Domain Axis. This is an essential requirement for my implementation. XYSeriesCollection intervalXYDataSet = new
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