推荐回答(5个)
1、电脑打开AutoCAD2007版本。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F0df3d7ca7bcb0a463e0dd7946563f6246b60af74%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
2、打开CAD之后,先画几个圆。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F37d3d539b6003af3df9180cd3b2ac65c1038b670%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
3、画好圆之后,输入面域命令REG,然后选中所有的图形,使图形都能面域。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F962bd40735fae6cd17bef7cc01b30f2442a70f10%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
4、面域图形后,输入合并面域的命令UNI,然后将所有面域合并。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Ff9dcd100baa1cd113cd92e8db712c8fcc3ce2d2b%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
5、把所有图形面域后,输入LI,然后选择对象。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F0df431adcbef7609b66ec53220dda3cc7cd99e32%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
6、选择对象后,就会出现一个窗口,图形的总面积就出来了。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F10dfa9ec8a136327d68d9e9e9f8fa0ec08fac73f%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
1、打开AutoCAD/天正软件,以天正2014为例,其他版本均可适用。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fe61190ef76c6a7efc749e8fcf3faaf51f2de66f8%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
2、绘制需要计算面积的图形,在这里以简单的矩形为例。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fa9d3fd1f4134970a020a50f59bcad1c8a6865dea%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
3、选中其中任意一个图形, 输入快捷键“LI”,就可以得到图形的面积和周长信息。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F9358d109b3de9c82f545b9556281800a18d843c3%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
4、使用快捷键MO、PR等也可以在左侧信息栏中查找面积和周长信息。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F08f790529822720e8c21662075cb0a46f31fab79%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
5、使用快捷键AA并选中图形,也可以得到同样的信息。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F8435e5dde71190ef71f5d205c01b9d16fcfa60d9%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
6、使用快捷键“AA-空格-A-空格-O”然后依次选择需要统计面积的图形,便可以得到图形的总面积。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F6d81800a19d8bc3e4b6d96108c8ba61ea9d34587%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
CAD计算多个图形的总面积方法:
打开要查询面积的多个图形的图层,保证每个多边形是闭合的,不要有不相关的任何多段线等,且多线段不能有自相交的情况:
1.造面,输入命令region或REG 选中所有多边形,生成面域,这是会显示创建多少个面域;
2.合并,输入命令union或UNI 同样选择所有的面域,进行合并所有面域对象,方便下一步查找;
3.显示,输入命令list 或LI ,点击对象(合并后所有的面域都是一个整体了),查看属性,就会显示这些图形的总面积和总周长;
将面域转化为多段线的方法麻烦,建议求面积时,将图形另存一份或者多后退几步;不过也总结出一个比较麻烦的方法:需要两次炸开命令,第一次炸开就恢复成多个面域解除原来的合并,选择所有的面域进行第二次炸开可以将面域转化为多条直线,然后用pe命令,选择m多条,然后选择j合并,c闭合,可以将直线转化为多段线,并闭合;这就回到刚开始的多个图形。
你用【多段线】功能(别说你找不到)把你要求总面积的图形描出来,并且【闭合】,然后选择你刚画出来的这个【闭合多段线】右键它,看【特性】,从中可以看到【面积】,如果是几个不连续的图形,那就分别描出,算他们的面积和,具体做法是,先点【多段线】按钮,选择【起点】,在命令栏里输入w确定【多段线】的【起点】 以及【端点】的宽度,开始描图形,最后按c【闭合】,然后【右键】看【特性】里的【面积】。
默认的额【起点】【端点】宽度是0.000,这个值越小,面积越精确。
你要注意【起点】和【端点】所选宽度一致。并且用滚轮查看你所描图形与【多段线】的重合情况,闭合情况,以便你的比较精确的结果。
这种方法适用于查看不规则的图形面积,如果是矩形,园,三角形你就自己按计算器吧。
一楼的方法适用于你所求的图形完全【闭合】(这是在绘图时控制的),如果没有【闭合】,你就无法建立【面域】。
方法随你选。
在工作中,常遇到需要求多个图形面积或周长的总和,通过属性查询或者Area或AA 需要多次点击,然后一个个加起来,不仅相当麻烦,而且容易出错;现在解决办法很多,一般有二次开发软件(如Newmap报件通),或者开发其他小插件;对于CAD高手来说,也可以通过灵活应用cad的命令组合也可以得到上述需求。
只打开要查询面积的多个图形的图层,保证每个多边形是闭合的,不要有不相关的任何多段线等,且多线段不能有自相交的情况(如果不闭合,请用BOUNDARY或者bpoly、BO创建后,再把生成后的闭合多段线,再进行计算);
1.造面,输入命令region或REG 选中所有多边形,生成面域,这是会显示创建多少个面域;
2.合并,输入命令union或UNI 同样选择所有的面域,进行合并所有面域对象,方便下一步查找;
3.显示,输入命令list 或LI ,点击对象(合并后所有的面域都是一个整体了),查看属性,就会显示这些图形的总面积和总周长;
将面域转化为多段线的方法麻烦,建议求面积时,将图形另存一份或者多后退几步;不过也总结出一个比较麻烦的方法:需要两次炸开命令,第一次炸开就恢复成多个面域解除原来的合并,选择所有的面域进行第二次炸开可以将面域转化为多条直线,然后用pe命令,选择m多条,然后选择j合并,c闭合,可以将直线转化为多段线,并闭合;这就回到刚开始的多个图形;
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