在“功能区”选项板的“常用”选项卡中，单击“绘图”按钮，在打开的下拉菜单中选择“测量”按钮，启用定距等分命令。
选择“圆”为定距等分的对象，单击鼠标左键，输入要等分的线段长度为3，按Enter键确定，效果如图所示。
定距等分是将所选对象按指定的线段长度等分。还可以通过，在命令行中输入measure命令启用定距等分，或在菜单栏中选择“绘图-点-定距等分”命令。
知识点词条：定距等分
![AutoCAD2012：[8]定数等分和定距等分点](https://exp-picture.cdn.bcebos.com/7c84d1672b5fd546fc88cfa77fd0b503c9d224b6.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fformat%2Cf_jpg%2Fquality%2Cq_80)
![AutoCAD2012：[8]定数等分和定距等分点](https://exp-picture.cdn.bcebos.com/c3c22dbf3bef354f54a7c38d23db574afb321bb6.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fformat%2Cf_jpg%2Fquality%2Cq_80)
![AutoCAD2012：[8]定数等分和定距等分点](https://exp-picture.cdn.bcebos.com/dd58d02c5b1b1edee4c3d78a981fceecd2d90fb6.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fformat%2Cf_jpg%2Fquality%2Cq_80)
![AutoCAD2012：[8]定数等分和定距等分点](https://exp-picture.cdn.bcebos.com/58021a0148fe1e4241747362c2299a88381303b6.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fformat%2Cf_jpg%2Fquality%2Cq_80)
