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 求助：origin求封闭曲线面积

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T O P I C    R E V I E W
kirakaen Posted - 02/06/2017 : 01:05:04 AM
Origin Ver. and Service Release (Select Help-->About Origin):
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大家好，我在用origin计算封闭曲线的面积，遇到点问题，困扰了已经有半个多月。问题具体如下：算封闭曲线的面积，点击area命令，理论上上，应该是封闭曲线内填充黑影，可是实际的情况是，封闭曲线外有一块多余的黑影，百度文库的教程（http://wenku.baidu.com/link?url=mFnFSQeuEImvFD6__qzAN5i1n6S0fz68PbWR1T9ZnKlgDRI90R_m-p2UhDmQNc-pS4H8i_KfHxl0EDt89wSAX96JxDVX4qR2TbGcpVpZEEG）说是要保证曲线环封闭、不间断，按这个思路调整半月有余，还是不见效，故提供数据文件（http://pan.baidu.com/s/1i5BhoOl），请求各位坛友的指教、帮助！
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kirakaen Posted - 02/06/2017 : 01:40:02 AM
谢谢，问题已解决
Echo_Chu Posted - 02/06/2017 : 01:22:08 AM
在你的OPJ里面使用的是画出area 图而不是求封闭曲线的面积。

如果希望求封闭曲线的面积的话
1. 把你的数据画成线图(呈现封闭曲线)
2. 选择菜单 “Analysis: Mathematics: Polygon Area”

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