CAD中的“FROM”命令是在现有命令下,指定一个偏移的点,该点可以用FROM命令来确定,具体的使用方法如下:
1、打开一个CAD文档,然后通过from命令,在下面现有圆的圆心位置,绘制一个x偏移10、y偏移10、半径为5的圆:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/55e736d12f2eb93888472ee4da628535e5dd6ff9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、先点击画圆工具,然后在键盘上输入“FROM”,按回车确认:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/dc54564e9258d10986c5fda4de58ccbf6c814d85?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、然后会提示选择基点,这时候点击圆的圆心:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6159252dd42a2834d7af621d54b5c9ea15cebf9f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、然后提示输入偏移量,这时候输入“@10,10”,按回车确认:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3ac79f3df8dcd100e9e0ac377d8b4710b9122fa3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、这时候会提示输入圆的半径,输入5,按回车确认:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d6ca7bcb0a46f21f6a370a45f9246b600c33aea1?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、这样就可以绘制一个半径为5、偏移量为(10,10)的圆了,如下:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a1ec08fa513d26979b9f5c4b5afbb2fb4316d85c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)