Flutter 如何在颤振中圆化圆弧边缘?
我需要创建一个弧图,如下所示: 使用canvas,我创建了这个: 我的代码:Flutter 如何在颤振中圆化圆弧边缘?,flutter,canvas,Flutter,Canvas,我需要创建一个弧图,如下所示: 使用canvas,我创建了这个: 我的代码: class CustomChartPainter extends CustomPainter { @override void paint(Canvas canvas, Size size) { Rect drawingRect = Rect.fromCircle(center: Offset(size.width / 2, size.height / 2), radius: size.width
class CustomChartPainter extends CustomPainter {
@override
void paint(Canvas canvas, Size size) {
Rect drawingRect = Rect.fromCircle(center: Offset(size.width / 2, size.height / 2), radius: size.width / 2);
final Paint paint2 = Paint();
paint2.color = const Color.fromRGBO(0, 0, 0, 0.04);
paint2.style = PaintingStyle.stroke;
paint2.strokeWidth = 50;
canvas.drawCircle(Offset(size.width / 2, size.height / 2), size.width / 2, paint2);
canvas.drawArc(drawingRect,
-pi / 2 + 0.35,
pi - 0.35,
false,
greenPaint);
canvas.drawArc(drawingRect,
pi / 2 + 0.35,
pi - 0.35,
false,
orangePaint);
}
}
如何使第一张图片上显示的圆弧边缘圆化?正如@pskink所提到的,解决方法是使用
Paint.strokeCap
,更准确地说:Paint.strokeCap=strokeCap.round
@pskink我必须计算图表边缘坐标和半圆的旋转角度吗?对不起,忘了-我错了,请参见Paint.strokeCap
@pskink-Wow!这正是我需要的。非常感谢。