charts
Flipped Vertical Axis Axes Example
Example:
/// Bar chart example
import 'package:flutter/material.dart';
import 'package:charts_flutter/flutter.dart' as charts;
/// Example of flipping the vertical measure axis direction so that larger values render
/// downward instead of the usual rendering up.
///
/// flipVerticalAxis, when set, flips the vertical axis from its default direction.
///
/// Note: primary and secondary may flip left and right positioning when
/// RTL.flipAxisLocations is set.
class FlippedVerticalAxis extends StatelessWidget {
final List<charts.Series> seriesList;
final bool animate;
FlippedVerticalAxis(this.seriesList, {this.animate});
factory FlippedVerticalAxis.withSampleData() {
return new FlippedVerticalAxis(
_createSampleData(),
// Disable animations for image tests.
animate: false,
);
}
@override
Widget build(BuildContext context) {
return new charts.BarChart(
seriesList,
animate: animate,
flipVerticalAxis: true,
);
}
/// Create series list with multiple series
static List<charts.Series<RunnerRank, String>> _createSampleData() {
final raceData = [
new RunnerRank('Smith', 1),
new RunnerRank('Jones', 2),
new RunnerRank('Brown', 3),
new RunnerRank('Doe', 4),
];
return [
new charts.Series<RunnerRank, String>(
id: 'Race Results',
domainFn: (RunnerRank row, _) => row.name,
measureFn: (RunnerRank row, _) => row.place,
data: raceData),
];
}
}
/// Datum/Row for the chart.
class RunnerRank {
final String name;
final int place;
RunnerRank(this.name, this.place);
}