1、首先,打开dwg文件,图纸中的三维图。
![](https://iknow-pic.cdn.bcebos.com/1b4c510fd9f9d72a13fbebf5da2a2834359bbbbf?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、选择“文件”-“新建”命令。新建一个dwg图纸文件。
![](https://iknow-pic.cdn.bcebos.com/960a304e251f95ca0ab4685ec7177f3e66095291?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、这个时候,命令行输入“FLATSHOT”-“空格”。
![](https://iknow-pic.cdn.bcebos.com/908fa0ec08fa513d75928936336d55fbb2fbd91a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、会弹出“平面摄影”对话框,选中“插入为新块”。而“暗显直线”是指:三维图的隐藏线,如果需要显示隐藏线的,可以勾选。
![](https://iknow-pic.cdn.bcebos.com/241f95cad1c8a786146bb0e66909c93d71cf5091?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、设置完成之后,选择“视图”选项卡中的“俯视”视图。
![](https://iknow-pic.cdn.bcebos.com/d8f9d72a6059252da188e6ec3a9b033b5ab5b9bf?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、采用这种方式转换过来的平面图,其线宽为0mm,直接用来打印会看不太清楚。
![](https://iknow-pic.cdn.bcebos.com/4034970a304e251f4fb61e10a986c9177e3e5391?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
7、设置线宽随图层“ByLayer”。
![](https://iknow-pic.cdn.bcebos.com/f703738da977391298d47f89f6198618377ae26c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
8、这样就在Cad中将一个三维实体转换为二维的平面图了。
![](https://iknow-pic.cdn.bcebos.com/d53f8794a4c27d1e27eac12c15d5ad6edcc4380e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)