How to implement a Box Plot in the Report Module?

Ignition
,
1

Hi everyone,

I am looking for a way to generate a Box Plot within the Ignition Report Module.

As shown in the attached image , we need to visualize power distribution (kW) across multiple Racks and have a requirement to include this exact visualization in a scheduled PDF report.

My Questions:

  • Has anyone successfully created a Box Plot in the Report Module?

  • If you've done this before, would you mind sharing a snippet or a general approach on how to structure the data for the chart?

  • Are there any reputable third-party modules that add advanced statistical charting like Box Plots to the Report Module?

Any advice, screenshots, or sample would be greatly appreciated!

messageImage_1769656996359
messageImage_17696569963592500×1405 325 KB

2

Start with a bar chart and use the BoxAndWhiskerRenderer.

You might need to tweak the chart with the configureChart() scripting method.

3

(post deleted by author)

4

Hi @pturmel,

I'm trying to implement a Box Plot in the Report Module following your suggestion to use a Bar Chart with a BoxAndWhiskerRenderer.

The chart renders the axes correctly, but the plot area remains empty (no boxes). I've attempted to force the dataset binding within configureChart(), but it hasn't resolved the issue.

image
image516×586 8.91 KB

Could you please check if my script logic for the BoxAndWhiskerCategoryDataset or the renderer hand-off is incorrect?

1. Script Data Source (updateData)

Python

def updateData(data, sample):
    # Import specialized dataset for Box Plots
    from org.jfree.data.statistics import DefaultBoxAndWhiskerCategoryDataset
    
    # Initialize the dataset
    ds = DefaultBoxAndWhiskerCategoryDataset()
    
    # Static debug data: [Min, Q1, Median, Q3, Max] represented by a list
    test_values = [5, 7, 8, 10, 12, 15, 18, 20, 22, 25]
    
    # Add data: (List of values, Series, Category)
    ds.add(test_values, "Power", "Rack 01")
    
    # Pass to the report data map
    data['debugData'] = ds

2. Bar Chart Extension Function (configureChart)

Python

def configureChart(self, chart):
    from org.jfree.chart.renderer.category import BoxAndWhiskerRenderer
    import java.awt.Color
    
    plot = chart.getCategoryPlot()
    
    # Retrieve the dataset from the report data map
    ds = self.data.get("debugData")
    
    if ds:
        # Explicitly set the dataset to the plot
        plot.setDataset(ds)
    
    # Initialize and configure the BoxAndWhisker renderer
    renderer = BoxAndWhiskerRenderer()
    renderer.setFillBox(True)
    renderer.setSeriesPaint(0, java.awt.Color.WHITE)
    renderer.setArtifactPaint(java.awt.Color.BLACK)
    
    # Apply the renderer to the plot
    plot.setRenderer(renderer)