I have created a chart using jfreechart library. I have the data set that use to create the graph. Is there any way I can get a report of the data in a tabular form directly from the jfreechart chart object.. Or any other ways where i can create report using jfreechart
Thank you
Assuming an XYDataset for example, one approach is to extend AbstractXYDataset and implement TableModel. Then you can construct a JTable, which is easy to render or print.
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Ext.js has the Ext.sparkline.Bar class. Is it possible to make that bar chart stacked? I have implemented a cartesian as the widget for the widget column to achieve this effect, But it has led to very long load times (particularly when calling grid.reconfigure()). I'm wondering if a more lightweight version can be achieved via a sparkline.
The reason I'm thinking it may be possible is because of the stackedBarColor config in the Ext.sparkline.Bar class. Aside from that, I haven't been able to find anything in regards to implementing it.
Anyone have any idea?
If you look at the source for Ext.sparkline.Bar, do a CTRL+F, type: 'stacked'. You can follow the logic there. at the most basic level you can achieve a stacked bar chart by passing in an array of arrays into the values config: values: [[0,1,2,3,4,5],[0,1,2,3,4,5]]. Each array will be its own stack.
I am using jfreechart to draw a line chart for some monthly data. It is working fine but I do not want to connect those data points which there are some gaps between them. for example I don't want to connect the point for 1/31/2015 to the point for 3/30/2015 because there is no data for 2/28/2015. Is there any configuration for jfreechart to handle this issue?
All you need to do is put a data point for 2/28/2015 with a value of Double.NaN - JFreeChart will then automatically display a gap...
I make pie chart in SSRS Report
I have 2 Chart and 2 Dataset When I preview My report color not same
this data are same and Data label are same but difference DataSet I want to show in same color
Thank you.
Follow the steps for both pie chart.
You can specify color scheme by selecting the chart and accessing properties.
There you can choose a predefined palette or select "Custom" and define your own color scheme by going to clicking CustomPaletteColors. This gives you more flexibility when working with graphs that have more then one section.
In our application we allow users to chart enum values over time. We want the values plotted on the y-axis according to their integer values. However, we want the y-axis labelled with localized strings. And we'd like the "tooltip" diplayed when you hover over a plotted point to display a localized string.
I thought this would be "simple" since the Chart Control apparently will graph any IComparable data. So I created an EnumValue class that implements IComparable (based on int value) but that has a property named Value (used for binding) that is of type String.
So I thought I had been very clever and attempted to graph my EnumValues. When trying to display the graph of EnumValues I was told that the Chart control could not find a suitable axis to display the data. This makes sense as my data can't be plotted with the default LinearAxis. (I mean where would it plot the value "Off").
My question, is their a simple way to do this (like providing a map from int values to strings that the chart will automagically use), or will I have to define my own subclass of RangeAxis (or DisplayAxis) that tells the Chart how to plot these EnumValues.
I think creating the EnumAxis wouldn't be too hard, but their isn't a lot of documentation on what the methods need to do. (although you can gather a lot of info by looking at the other implementations).
Note, I'm currently trying to do this with Silverlight Toolkit Chart Control. But am evaluating Telerik and Software FX as well.
I did get this to work by creating my own Axis subclass.
I want to visualize a data using graph, this is the sample graph that i want to use it.
I think the picture above is like time series graph types, data on the graph shows a random numbers in variety of time. If every data number is null or empty the graph is painting a full vertical red line.
My goal is to visualize a data like picture above, i already tried to use a different reactjs chart to visualize a data but can't
make if every data number is null or empty the graph is painting a full vertical red line like the picture.
Has anyone ever used a chart like the picture above?
It is better if you try Recharts. It is a compo-sable charting library for react components.