# View.SetCropBoxCurves GETTING NULL OUTPUT

**URL:** <https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040>\
**Category:** Revit\
**Tags:** mepover\
**Created:** [July 8, 2019, 8:49am UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040 "2019-07-08T08:49:40Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![mrathnakar](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mrathnakar/32/83799_2.png) [@mrathnakar](https://forum.dynamobim.com/u/mrathnakar)\
**Post date:** [July 8, 2019, 8:49am UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040/1 "2019-07-08T08:49:40Z")

</div>

Getting Null Value for VIew.SetCropBoxCurves.

Checked for all the Lacings.

Crossing is getting output but not properly as per the sequence.

Attaching the screen shot of it.

Please Help me.

Thank you.

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/2/a/2a7433ab3f0e06a1ecaf85ef7cdf0a6ad3585a31.jpeg)

---

<div class="post-metadata">

**Author:** ![Revit\_Noob](https://avatars.discourse-cdn.com/v4/letter/r/a587f6/32.png) [@Revit\_Noob](https://forum.dynamobim.com/u/Revit_Noob)\
**Post date:** [July 8, 2019, 8:50am UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040/2 "2019-07-08T08:50:27Z")

</div>

having the same problem…

---

<div class="post-metadata">

**Author:** ![MJB-online](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mjb-online/32/24884_2.png) [@MJB-online](https://forum.dynamobim.com/u/MJB-online)\
**Post date:** [July 8, 2019, 11:16am UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040/3 "2019-07-08T11:16:50Z")

</div>

You can try to set the levels of your “Curves” input to 2.

![Use%20levels](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/1/6/16dd59cc674ef9cff77fe6da098a4a1fd52338f0.png)

Or check:  
[https://dynamobim.org/introducing-listlevel-working-with-lists-made-easier/](https://dynamobim.org/introducing-listlevel-working-with-lists-made-easier/)

---

<div class="post-metadata">

**Author:** ![SeanP](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/seanp/32/42560_2.png) [@SeanP](https://forum.dynamobim.com/u/SeanP)\
**Post date:** [July 9, 2019, 2:11am UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040/4 "2019-07-09T02:11:36Z")

</div>

You also may need to make sure your curves are in order. This means the end of one has to be the start of the next. Not sure if the nodes does that internally or not, but that’s how the API works.

---

<div class="post-metadata">

**Author:** ![mrathnakar](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mrathnakar/32/83799_2.png) [@mrathnakar](https://forum.dynamobim.com/u/mrathnakar)\
**Post date:** [July 9, 2019, 1:48pm UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040/5 "2019-07-09T13:48:27Z")

</div>

![09-07-2019](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/1/8/1847366cf843a28bb59b81bec866097d51e07113.jpeg)

IM UNABLE TO GET THE OUTPUT

PLEASE HELP ME.

---

<div class="post-metadata">

**Author:** ![iliaspitserov](https://avatars.discourse-cdn.com/v4/letter/i/e19b73/32.png) [@iliaspitserov](https://forum.dynamobim.com/u/iliaspitserov)\
**Post date:** [November 26, 2020, 11:25am UTC](https://forum.dynamobim.com/t/view-setcropboxcurves-getting-null-output/38040/6 "2020-11-26T11:25:59Z")

</div>

Had the same problem. This is the right solution.  
Thanks!