# Intersection area

**URL:** <https://discourse.mcneel.com/t/intersection-area/142354>\
**Category:** Grasshopper\
**Tags:** intersection, surfaceintersection, rhino7, meshintersect, naval-architecture\
**Created:** [May 10, 2022, 4:04pm UTC](https://discourse.mcneel.com/t/intersection-area/142354 "2022-05-10T16:04:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Agache\_Aurelian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/agache_aurelian/32/378750_2.png) [@Agache\_Aurelian](https://discourse.mcneel.com/u/Agache_Aurelian)\
**Post date:** [May 10, 2022, 4:04pm UTC](https://discourse.mcneel.com/t/intersection-area/142354/1 "2022-05-10T16:04:01Z")

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**Intersection area between a horizontal plane, a transverse plane and the hull of a ship**

Hi, guys,

I’m a beginner and I’m stuck on a project. I have the hull of a ship and I want to find the area of ​​a transverse plane that intersects with the hull to a certain water line. I tried many things but failed. I also want the horizontal panel (water line) to be variable on the z axis and the transverse plane on the x axis.

 ![111.bmp](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/6/b/6/6b65f75e6e842c9cd7d32fd2f8e796eeb15314db.png)  
 ![2](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/6/4/a/64a79c7bd0a78dc2fda35ddbfc9dc7fd615a2eda.png)  
That’s what I’ve managed to do so far.  
[unnamed.gh](https://discourse.mcneel.com/uploads/short-url/zsVb60bXs0rjyEIaIbYlHdwls1I.gh) (21.1 KB)  
[Untitled.3dm](https://discourse.mcneel.com/uploads/short-url/xmMp29h2gGRlV7pKT8sZsyfbLRK.3dm) (869.7 KB)  
Thank you all !! 🙏

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**Author:** ![HS\_Kim](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/hs_kim/32/473975_2.png) [@HS\_Kim](https://discourse.mcneel.com/u/HS_Kim)\
**Post date:** [May 10, 2022, 4:37pm UTC](https://discourse.mcneel.com/t/intersection-area/142354/2 "2022-05-10T16:37:08Z")

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![Canvas at 01;36;02](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/f/a/e/faead24d53d148e5e322085d4ad9b630c12d0ee8.png)  
[unnamed-re01.gh](https://discourse.mcneel.com/uploads/short-url/46vs2RvDnragUWjNYmSiLoNApyv.gh) (256.5 KB)

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**Author:** ![Agache\_Aurelian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/agache_aurelian/32/378750_2.png) [@Agache\_Aurelian](https://discourse.mcneel.com/u/Agache_Aurelian)\
**Post date:** [May 10, 2022, 5:42pm UTC](https://discourse.mcneel.com/t/intersection-area/142354/3 "2022-05-10T17:42:16Z")

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For some values the area is null but I’ll see what I can do about it. You helped me a lot. Thank you very much!! 😇

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**Author:** ![HS\_Kim](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/hs_kim/32/473975_2.png) [@HS\_Kim](https://discourse.mcneel.com/u/HS_Kim)\
**Post date:** [May 10, 2022, 6:04pm UTC](https://discourse.mcneel.com/t/intersection-area/142354/4 "2022-05-10T18:04:18Z")

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This way seems more reliable than the previous one…  
 ![hull](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/4/5/1/4519b437e02e8eaff4e9fb6703ecd7016282c089.gif)  
[unnamed-re02.gh](https://discourse.mcneel.com/uploads/short-url/ee2iiOmtBD2kP3NAv5afwYauK4D.gh) (255.4 KB)

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<div class="post-metadata">

**Author:** ![Agache\_Aurelian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/agache_aurelian/32/378750_2.png) [@Agache\_Aurelian](https://discourse.mcneel.com/u/Agache_Aurelian)\
**Post date:** [May 10, 2022, 6:23pm UTC](https://discourse.mcneel.com/t/intersection-area/142354/5 "2022-05-10T18:23:21Z")

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Yes indeed. It works perfectly. I really appreciate it. 💖