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55 lines
1.5 KiB
Dart
55 lines
1.5 KiB
Dart
import 'package:charts_flutter/flutter.dart' as charts;
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import 'package:flutter/material.dart';
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import 'dart:math';
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class GaugeChart extends StatelessWidget {
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final List<charts.Series> seriesList;
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final bool animate;
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GaugeChart(this.seriesList, {this.animate});
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/// Creates a [PieChart] with sample data and no transition.
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factory GaugeChart.withSampleData() {
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return new GaugeChart(
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_createSampleData(),
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// Disable animations for image tests.
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animate: false,
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);
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}
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@override
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Widget build(BuildContext context) {
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return new charts.PieChart(seriesList,
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animate: animate,
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defaultRenderer: new charts.ArcRendererConfig(arcWidth: 10));
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//);
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}
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static List<charts.Series<GaugeSegment, String>> _createSampleData() {
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final data = [
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new GaugeSegment('Low', 75, charts.MaterialPalette.blue.shadeDefault),
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new GaugeSegment(
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'Acceptable', 100, charts.MaterialPalette.blue.shadeDefault),
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new GaugeSegment('High', 50, charts.MaterialPalette.blue.shadeDefault),
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new GaugeSegment(
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'Highly Unusual', 55, charts.MaterialPalette.blue.shadeDefault),
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];
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return [
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new charts.Series<GaugeSegment, String>(
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id: 'Segments',
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domainFn: (GaugeSegment segment, _) => segment.segment,
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measureFn: (GaugeSegment segment, _) => segment.size,
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data: data,
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)
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];
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}
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}
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/// Sample data type.
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class GaugeSegment {
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final String segment;
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final int size;
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final charts.Color color;
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GaugeSegment(this.segment, this.size, this.color);
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}
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