以前Android里面用的函数,修改了一些语法,给flutter用
/**
* 绘制网格路径
*
* @param step 小正方形边长
* @param winSize 屏幕尺寸..., winSize), paint);
//左箭头
canvas.drawLine(new Offset(winSize.width, coo.height),
new Offset...,
new Offset(winSize.width - 10, coo.height + 6), paint);
//下箭头
canvas.drawLine(new Offset(...(i, 30, 15), mPaint);
}
canvas.restore();
canvas.translate(0, 70);
canvas.save();//绘制正...(i, 30), mPaint);
}
canvas.restore();
canvas.translate(0, 70);
canvas.save();//绘制正n边形