# Trying To Understand Sweep and Vertices

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When I sweep along a curve which was built by taking a grid and running a carve on it, my sweep looks like this-

However my I try to do it on a curve that was created by taking a line, and then copying to smaller lines on the ends and fusing, it looks like this-

As you can see the corners are messed up. I assume this has something to do with vertices as the first example contains only 4 vertices and the 2nd has 6. I'm just wondering specifically what the issue is here and of course how I can fix it

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21 minutes ago, RyanJP said:

When I sweep along a curve which was built by taking a grid and running a carve on it, my sweep looks like this-

However my I try to do it on a curve that was created by taking a line, and then copying to smaller lines on the ends and fusing, it looks like this-

As you can see the corners are messed up. I assume this has something to do with vertices as the first example contains only 4 vertices and the 2nd has 6. I'm just wondering specifically what the issue is here and of course how I can fix it

maybe your curve has more than one primitive.

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14 minutes ago, Ultraman said:

maybe your curve has more than one primitive.

Ok awesome that got me one step of the way, was able to use an add node to get it down to a single primitive but now now my point numbers are off, is there a simple way to flip two of them (2 and 3)

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1 minute ago, RyanJP said:

Ok awesome that got me one step of the way, was able to use an add node to get it down to a single primitive but now now my point numbers are off, is there a simple way to flip two of them (2 and 3)

yes, you can use dirty way in add sop - delete geometry keep point - then go the polygon >bygroup >write in name group 0 1 3 2 - never use this way  - u must check from the top why u have this issue -

and if u have multi primitive in curve use join sop converting to single prim .

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8 minutes ago, Ultraman said:

yes, you can use dirty way in add sop - delete geometry keep point - then go the polygon >bygroup >write in name group 0 1 3 2 - never use this way  - u must check from the top why u have this issue -

and if u have multi primitive in curve use join sop converting to single prim .

Haha yes- very dirty way to do it. Actually this has helped me to figure out what the problem was when I created the shape. And I was not aware of the Join SOP, so that's great. Thank you!

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On 3/23/2021 at 7:45 PM, RyanJP said:

Ok awesome that got me one step of the way, was able to use an add node to get it down to a single primitive but now now my point numbers are off, is there a simple way to flip two of them (2 and 3)

Use PolyPath to combine primitives.

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