使用“相切,相切,半径”命令即可完成。
步骤如下:
1,在工具栏中找到“圆形”图标,鼠标左键点击,执行画圆命令。这样先画出两个圆:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/359b033b5bb5c9ea7adbec7ddb39b6003af3b300?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2,根据命令栏的提示,输入快捷键“T”,选择“相切,相切,半径”命令:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0df431adcbef7609c793760120dda3cc7dd99e90?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3,根据提示指定对象与第一个圆的切点,这里我们在第一个圆大概的位置点击切点(注意我们不知道具体切点的位置在哪里,但是系统会自动在改对象上选择切点),如图:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/8c1001e93901213f2b53a7425ae736d12e2e95c8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4,根据提示指定对象与第二个圆的切点,与上一步操作一样,如图:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d31b0ef41bd5ad6e36948c748fcb39dbb6fd3c3b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5,提示指定圆的半径,根据具体需要输入圆的已知半径,这里输入半径“30”,举例说明:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/500fd9f9d72a6059466e0b842634349b033bba36?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6,输入半径数值后,点击回车键确认,这样相切的圆就画出来了:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/adaf2edda3cc7cd9031adc473701213fb80e917d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)