How to Render Particular Part of Data in Flutter CartesianChart?

Flutter CartesianChart widget provides support to view the required set of data from a larger collection. This can be achieved using the initialVisibleMinimum and initialVisibleMaximum properties of an axis.

Consider that, we are having 10 data points from which you need to view 4 data, then you can specify the initialVisibleMinimum as 4 and initialVisibleMaximum as 7 in an axis. Now, only the data from 4 to 7 will be visible in the axis.

The following steps explain how to achieve this in the SfCartesianChart.

Step 1: Initialize the Cartesian chart widget with the required parameters and initialize the initialVisibleMinimum and initialVisibleMaximum properties in the x-axis.

SfCartesianChart(
 // Assigning visible minimum and maximum to the x-axis.
  primaryXAxis: NumericAxis(
    initialVisibleMinimum: 4, 
    initialVisibleMaximum: 7, 
    interval: 1
  ),
)

Step 2: Then to view the remaining data, you can enable the panning in the zoomPanBehavior and pan the chart.

late ZoomPanBehavior zoomPanBehavior;
 
// Enable the panning
@override
 void initState() {
  zoomPanBehavior = ZoomPanBehavior(enablePanning: true);
  super.initState();
}
 
// Assigning zoom pan behavior to the chart
  SfCartesianChart(
    zoomPanBehavior: zoomPanBehavior,
  )

View the sample in GitHub

Conclusion

I hope you enjoyed learning how to render particular part of data in Flutter CartesianChart.

You can refer to our Flutter CartesianChart feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our Flatter CartesianChart example to understand how to create and manipulate data.

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