# How to draw lines between planes?

**URL:** <https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734>\
**Category:** Modeling Questions\
**Created:** [April 13, 2022, 2:04am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734 "2022-04-13T02:04:50Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![DragonDon](https://avatars.discourse-cdn.com/v4/letter/d/a698b9/32.png) [@DragonDon](https://discourse.shapr3d.com/u/DragonDon)\
**Post date:** [April 13, 2022, 2:04am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/1 "2022-04-13T02:04:50Z")

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I feel this should be a simple thing but my brain can’t grasp it.

I have two planes and I want to draw a line from one to the other.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/d/d222db5aa4ca0611286faa3bdc4a96c396c8b87b.jpeg)

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**Author:** ![Rohan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/rohan/32/15410_2.png) [@Rohan](https://discourse.shapr3d.com/u/Rohan)\
**Post date:** [April 13, 2022, 3:51am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/2 "2022-04-13T03:51:50Z")

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There is a way !

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**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [April 13, 2022, 4:44am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/3 "2022-04-13T04:44:15Z")

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I don’t think it works. The line you connected from the lower hex plane to the triangle only works on the same plane you created at the triangle. Try connecting a line from one of the hex corners to the triangle corner like in the original sketch. It doesn’t work. Sorry.

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**Author:** ![PEC](https://avatars.discourse-cdn.com/v4/letter/p/67e7ee/32.png) [@PEC](https://discourse.shapr3d.com/u/PEC)\
**Post date:** [April 13, 2022, 4:56am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/4 "2022-04-13T04:56:57Z")

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Hi  
Simply add a construction plane _through 3 points_ and select the 3 points you circled in red.  
Then double tap on this plane and sketch the lines on it.

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**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [April 13, 2022, 5:03am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/5 "2022-04-13T05:03:51Z")

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@Rohan, your method does work if you take it one more step. Add another plane via 3 points and now you can connect the triangle to a corner of the hex.  
@PEC, it’s trickier than you think.

[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/d/ddf7b8e3b55209680698bb13ac7cb2aef69b5310.mov](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/d/ddf7b8e3b55209680698bb13ac7cb2aef69b5310.mov)

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**Author:** ![PEC](https://avatars.discourse-cdn.com/v4/letter/p/67e7ee/32.png) [@PEC](https://discourse.shapr3d.com/u/PEC)\
**Post date:** [April 13, 2022, 5:36pm UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/7 "2022-04-13T17:36:31Z")

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Hi,

sorry for the short answer this morning, I was on the road all day long.  
Here are 2 other ways of doing it : 3 points construction plane and using loft tool with a little help from control points.

@TigerMike : the only tricky thing I see for the 3 points plane solution is to ensure the top point is exactly at the 2 lines crossing, which is ensured by slightly moving the point until the 2 lines are bold. Did you think of something different I’m missing?

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**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [April 13, 2022, 7:52pm UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/8 "2022-04-13T19:52:14Z")

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Nicely done. I was having some problems orienting the 3 points. I found out I needed to move the point around to make sure it connected properly as you show above.

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**Author:** ![Rohan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/rohan/32/15410_2.png) [@Rohan](https://discourse.shapr3d.com/u/Rohan)\
**Post date:** [April 14, 2022, 1:22am UTC](https://discourse.shapr3d.com/t/how-to-draw-lines-between-planes/18734/9 "2022-04-14T01:22:53Z")

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Great work @PEC , we can do it without a plane by rotating the line.

[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/5/51226f31a752adfd881cc3189903b9034b8c761f.MOV](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/5/51226f31a752adfd881cc3189903b9034b8c761f.MOV)