SfCircularChart周围的额外间距

Question

第一次在这里提问。我想知道如何从syncfusion_flutter_charts包中删除SfCircularChart周围的额外间距。

Container(
// Wrapping around fixed size Container
width: 200,
height: 200,
color: Colors.red,
child: SfCircularChart(
// Setting the margin to zero
margin: EdgeInsets.zero,
series: <CircularSeries>[
PieSeries<Category, String>(
dataSource: dailyEarningList,
xValueMapper: (Category data, _) => data.name,
yValueMapper: (Category data, _) => data.value,
dataLabelSettings: DataLabelSettings(
isVisible: true,
),
),
],
),
)

形象

Answer 1

PieSeries<Category, String>(
radius: "100",
dataSource: [Category(["a", "b", "c"])],
xValueMapper: (Category data, _) => "d",
yValueMapper: (Category data, _) => 1,
dataLabelSettings: const DataLabelSettings(
isVisible: true,
),
),

库有一个半径参数。它是一个字符串。我不明白为什么是字符串。在您的示例中，如果您将其设置为"100"，它将匹配容器。