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TOPIC: BlueKenue: missing element edges b/w nodes

BlueKenue: missing element edges b/w nodes 13 years 3 months ago #2042

  • ingénieure
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The mesh generating tools in BlueKenue are producing odd results along a few closed softlines.

I am using triangulation results to resample my mesh boundary and all internal softlines.

(1) Some softlines are not being resampled correctly

(2) Element edges are randomly missing along 2 or 3 of the closed softlines.

I have attached an image showing the triangulation results and the original softline. The softline has a point spacing of approx 20 m and should be resampled at 75 m intervals based on the triangulation values.

The second image shows the mesh (grey) above the resampled softline (red). The resampled softline has node spacings ranging between 40 m and 100 m. The 8 red segments show the locations of missing element edges between nodes found on the closed softline.

Any insights as to the cause of or any potential solutions to these problems would be greatly appreciated.

File Attachment:

File Name: Softline_and_Mesh.doc
File Size: 267776
1___Density-20110805.JPG
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Re: BlueKenue: missing element edges b/w nodes 13 years 2 months ago #2313

  • Serrer
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Please post the t3m file here, or send it to me at This email address is being protected from spambots. You need JavaScript enabled to view it. and I'll have a look at the problem.

Martin
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Re: BlueKenue: missing element edges b/w nodes 13 years 2 months ago #2341

  • tlyle
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Thanks. We will.

We've ultimately solved the problem, but manually. It seems that if the distance between two boundaries (even if they are the same boundary) is less or the same than the density in the region then this type of error occurs.

We tracked down all our missing nodes/missing elements by comparing the ipobo file with the .ngh file in GIS and fixing the elements/nodes manually using TRIGRID. It worked; but was cumbersome for a 750,000 element mesh.

Any fixes within BlueKenue would be great. Thanks again.

Tamsin
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