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[GAMBIT] Can nodes in a face mesh be deleted?

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Old   January 1, 2012, 12:21
Default Can nodes in a face mesh be deleted?
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Sometimes Gambit creates unwanted nodes due to which there merge some highly skewed small triangles. I know these triangle can be altered by moving the nodes on their vertices, but sometimes you have to move a couple of adjacent nodes and the result is not always desirable. To delete the extra nodes is obviously a good solution, but I don't know if Gambit allows it.
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Old   January 4, 2012, 02:44
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can you sketch an example
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Old   January 4, 2012, 10:35
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are you working on 2d problem?
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Old   February 3, 2012, 03:32
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Quote:
Originally Posted by -mAx- View Post
can you sketch an example
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Originally Posted by Far View Post
are you working on 2d problem?
Sorry for replying so late. I'd thought nobody'd replied me.
I encountered this problem when i meshed a surface on a volume. As you can see in the picture below, there are a couple of highly skewed triangles due to the existence of the nodes to which the red arrows point. As i said above, these triangle can be altered by moving the nodes on their vertices, but sometimes you have to move a couple of adjacent nodes and the result is not always desirable. However, if I deleted the two nodes, which are apparently unnecessary but i don't know why Gambit creates them, the highly skewed triangles would disappear with the red lines (i added) being the new boundaries of a few larger triangles, and the grid would be more even. but i don't know if Gambit allows deleting nodes in a existing grid.

Thank you for replying me.
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Old   February 3, 2012, 03:40
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you cannot delete those nodes.

*but you can move the nodes >> http://my.fit.edu/itresources/manual...face_movenodes

*when I encounter this problem, I try to move the nodes (as previously suggested), or I create a vertice on the boundary edge (near the skewed cells), and I apply a size function on the vertice.
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Old   February 3, 2012, 09:31
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I have tried moving the nodes to alter the shapes of some highly skewed triangles, but sometimes i had to move some more nodes around them to get a desirable result. so i think it'd be a shortcut to delete those unwanted nodes. Thank you for you suggestions.
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