# Bodies, projected line oddness

**URL:** <https://discourse.shapr3d.com/t/bodies-projected-line-oddness/40448>\
**Category:** Modeling Questions\
**Created:** [March 5, 2026, 5:16pm UTC](https://discourse.shapr3d.com/t/bodies-projected-line-oddness/40448 "2026-03-05T17:16:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [March 5, 2026, 5:16pm UTC](https://discourse.shapr3d.com/t/bodies-projected-line-oddness/40448/1 "2026-03-05T17:16:15Z")

</div>

In my mind, I am seeing a disassociation of parts, of a body, when I expect a body to be one whole thing and be manipulated as a whole, not in parts. Is this a limitation of Parasolid? Feature or flaw?

For example

1. when projecting line onto a body (1st pic). When I select the top surface, it left out the center part. That seems odd to me.

2. Manipulating the surface of the body with a projected line (2nd & 3rd pic) it seems to treat the center section as a different body. Moving or rotating the projected line gets the same result. I don’t remember this behavior before the switch to Parsolid. The results seem counterintuitive to me. Flaw or feature?

a

 ![LotusProjection](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/b/eb38910508f4df9ff57442d7b23a20b8abdde7ba.jpeg)

 ![Lotus5](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/5/e5f3149d8ba22dab921c219086ad4e5a5ae7b160.jpeg)

 ![Lotus3](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/0/e00ea3ada07d395796659b4861c6dfc0d931fc56.jpeg)