Full Version: Joined Surface that should be a Solid

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Hi,

Thanks very much.

I'm guessing a "bare edge" is an edge NOT attached to some other edge?

I will try out your script just to see if I can do it myself.

Hmm... how does one run such a script?

Frederick

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Hi Frederick, you can paste this into the "Command" part of a shortcut key:

script: /* Highlight naked edges */ var gd = moi.geometryDatabase; gd.deselectAll(); var breps = gd.getObjects().getBreps(); for ( var i = 0; i < breps.length; ++i ) breps.item(i).getNakedEdges().setProperty( 'selected', true );

Or also in V5 you can use the Scene Browser, click "Browser" at the bottom of the side pane and inside the scene browser go to Types> Edges > Naked and click the selection dot area on the right hand side of the item.

And yes "naked" edges are edges that belong to just one face instead of being joined between 2 faces.

You can't have a solid if there are any naked edges, so those are the areas that need some tune up work.

In your case here there are a couple of the naked edges are very tiny, these can cause joining problems.

Sometimes tiny edges can be purged by separating faces into individual surfaces so they aren't joined to anything and then using the Merge command:
https://moi3d.com/4.0/docs/moi_command_reference10.htm#merge

Sometimes it may need getting rid of the current trim boundaries and retrimming the surface. There is a description of this in the object repair tutorial here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=446.17

- Michael

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Michael,

You are the best, the VERY best.

I should buy several dozen licenses from you as a way of saying "thanks". Not sure what the wife would say.

Frederick

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I forgot to ask.

So two faces can share an single edge OR two faces have edges that, not sure how to put this, exist in the exactly the same space?

I'm guessing a face must be, for lack of the correct term, "enclosed" by edges?

Frederick

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Hi Frederick,

re:
> So two faces can share an single edge OR two faces have edges that, not sure how to
> put this, exist in the exactly the same space?

Yup, that's correct. There can be one common shared edge between two faces. This is called a "joined edge" and to have a solid you want to have all edges be in this state.

If two faces are touching at an edge but it isn't joined, then there are 2 separate "naked" edges there that are coincident.


> I'm guessing a face must be, for lack of the correct term, "enclosed" by edges?

Yes, a face has "trim boundaries" (or "loops") on it. Each loop consists of one or more edges forming a closed outline.

A face can have one "outer loop" and any number of "inner loops" making holes.


- Michael

Image Attachments:
trimmed_face.png 

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