Set maximum value on primary measure axis

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Set maximum value on primary measure axis



This is a question for Flutter development using charts_flutter. Is there a parameter to fix the maximum value on the measure axis? I'm currently using desiredTickCount as a hack but I ideally only want 3 tickers (0,5,10) for a range of 0-10 on the measure axis.


charts_flutter


desiredTickCount



Code snippet:


return new charts.BarChart(
_createSampleData(),
animate: true,
vertical: false,


primaryMeasureAxis: new charts.NumericAxisSpec(
tickProviderSpec: new charts.BasicNumericTickProviderSpec(
desiredTickCount: 11,
),
),
barRendererDecorator: new charts.BarLabelDecorator(),
// Hide domain axis.
domainAxis:
new charts.OrdinalAxisSpec(renderSpec: new charts.NoneRenderSpec()),
);
}

static List<charts.Series<OrdinalSales, String>> _createSampleData()
final data = [
new OrdinalSales('Liver', 8),
new OrdinalSales('Heart', 4),
new OrdinalSales('Spleen', 5),
new OrdinalSales('Lung', 1),
new OrdinalSales('Kidney', 2),
];

return [
new charts.Series<OrdinalSales, String>(
id: 'Sales',
domainFn: (OrdinalSales sales, _) => sales.year,
measureFn: (OrdinalSales sales, _) => sales.sales,
data: data,
// Set a label accessor to control the text of the bar label.
labelAccessorFn: (OrdinalSales sales, _) => '$sales.year',
),
];

}

class OrdinalSales
final String year;
final int sales;

OrdinalSales(this.year, this.sales);





Do you mean using charts_flutter? google_charts is for web. Please post the snippet where you currently use desiredTickCount.
– Richard Heap
2 hours ago


charts_flutter


google_charts


desiredTickCount





Yes, I meant using charts_flutter. Apologies for the confusion.
– Hayden Lak
17 mins ago




1 Answer
1



If you really just want 0, 5 and 10 try using a StaticNumericTickProviderSpec


StaticNumericTickProviderSpec


primaryMeasureAxis: new charts.NumericAxisSpec(
tickProviderSpec: new charts.StaticNumericTickProviderSpec(
<charts.TickSpec<num>>[
charts.TickSpec<num>(0),
charts.TickSpec<num>(5),
charts.TickSpec<num>(10),
],
),
),






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