# Objects along a spline

**URL:** <https://discourse.shapr3d.com/t/objects-along-a-spline/6444>\
**Category:** Modeling Questions\
**Created:** [January 13, 2020, 8:27pm UTC](https://discourse.shapr3d.com/t/objects-along-a-spline/6444 "2020-01-13T20:27:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![twilson](https://avatars.discourse-cdn.com/v4/letter/t/2bfe46/32.png) [@twilson](https://discourse.shapr3d.com/u/twilson)\
**Post date:** [January 13, 2020, 8:27pm UTC](https://discourse.shapr3d.com/t/objects-along-a-spline/6444/1 "2020-01-13T20:27:55Z")

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I’m trying to create a curved, tiled roof. I’ve sketched a spline/arc and extruded it. And have created individual tiles, is there anyway to place my tile objects evenly at a tangent to the spline?

Currently, I’ve placed them manually and they’re not quite lined up correctly and have gaps preventing me from being able to union them all together.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/4/49b0f2bd477259f48ad079b3d015778755131003.jpeg)

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**Author:** ![Gelphyn](https://avatars.discourse-cdn.com/v4/letter/g/db5fbb/32.png) [@Gelphyn](https://discourse.shapr3d.com/u/Gelphyn)\
**Post date:** [January 13, 2020, 11:53pm UTC](https://discourse.shapr3d.com/t/objects-along-a-spline/6444/2 "2020-01-13T23:53:06Z")

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@twilson  
Welcome to the Forum, your Design looks great 🕶👍  
If your Spline could be replaced by a segment of a Circle you could use:

**Tools \> Rotate around axis** to copy and move them.

or

**Transform \> Move/Copy** \> Place the Centre of the this tool on the axis \> Tap the Copy Icon and move them.  
To ensure accurate placement, but personally I do not think it will look as good as your achievement.

Looking at your Design suggests that the upper portion of the Spline has less of a curve than the lower portion?  
To force a Union you could create a ‘modification’ something like this:

 ![IMG_0999](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/f/f84d3e92080cd1374a4d573dbd38a85d9defbaa7.jpeg)

Whatever projection you choose will need to be set back from the visible edge face, not to give the game away.

IMO your tiling is ‘perfect’, show me a picture of a similar roof that is aligned as accurately.  
Imperfections in this instance may enhance rather than detract from the overall effect?  
Keep up the good work, happy S3Ding 🕶

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**Author:** ![twilson](https://avatars.discourse-cdn.com/v4/letter/t/2bfe46/32.png) [@twilson](https://discourse.shapr3d.com/u/twilson)\
**Post date:** [January 14, 2020, 2:08pm UTC](https://discourse.shapr3d.com/t/objects-along-a-spline/6444/3 "2020-01-14T14:08:19Z")

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Thanks. I’ve ended up going with this, as I need it lofted for 3D printing (making a pagoda roof)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/4/4d663c62f01249fb0aa88ca412d2dc731560b95e.jpeg)

I was able to Union it. Next will be the mitred corners and additional tiles.

I’m just too much of a perfectionist for my own good, I think.

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**Author:** ![Gelphyn](https://avatars.discourse-cdn.com/v4/letter/g/db5fbb/32.png) [@Gelphyn](https://discourse.shapr3d.com/u/Gelphyn)\
**Post date:** [January 14, 2020, 2:23pm UTC](https://discourse.shapr3d.com/t/objects-along-a-spline/6444/4 "2020-01-14T14:23:34Z")

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@twilson  
A man has to do what a man has to do, nothing wrong with aiming for perfection.

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**Author:** ![Dave\_P](https://avatars.discourse-cdn.com/v4/letter/d/43a26b/32.png) [@Dave\_P](https://discourse.shapr3d.com/u/Dave_P)\
**Post date:** [January 14, 2020, 4:50pm UTC](https://discourse.shapr3d.com/t/objects-along-a-spline/6444/5 "2020-01-14T16:50:25Z")

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Can you lay the tiles 90° from what you have in the drawing?