mirror of
https://github.com/ant-design/ant-design.git
synced 2024-12-05 01:19:45 +08:00
11 lines
349 B
TypeScript
11 lines
349 B
TypeScript
|
const getOffset = (radius: number): number => {
|
||
|
|
if (radius === 0) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
// 如果要考虑通用性，这里应该用三角函数 Math.sin(45)
|
||
|
|
// 但是这个场景比较特殊，始终是等腰直角三角形，所以直接用 Math.sqrt() 开方即可
|
||
|
|
return radius - Math.sqrt(radius ** 2 / 2);
|
||
|
|
};
|
||
|
|
|
||
|
|
export default getOffset;
|