一、如题所述的“把多段线图形合成一个整体”的操作方法如下:
1、如图所示,单击“合并命令”按钮,系统将提示选择源对象或同时选择多个要合并的对象。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6d81800a19d8bc3ef93a65c58d8ba61ea8d3458a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、如图所示,框选polyline对象并右键单击以确认。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7dd98d1001e93901362eee3174ec54e736d19694?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3.结果如下图所示。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d043ad4bd11373f00b570c90ab0f4bfbfbed0450?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
二、cad里面把多段线的图形合成一个整体的步骤如下:
1、首先,打开cad软件,打开要操作的图形。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/00e93901213fb80e614f01d839d12f2eb9389426?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、然后找到下面的命令栏,输入pe,然后输入m。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/86d6277f9e2f07089c9b4a0fe624b899a901f227?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、然后使用鼠标左键选择要合并的段,然后按回车键确认。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/cc11728b4710b912ac5896f1ccfdfc0392452227?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、当显示是否将直线和圆弧转换为多段线时,选择“是”,再次按Enter键确认,在命令栏中输入J,然后按Enter键确认。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9213b07eca8065380837c41c98dda144ac3482db?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)