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TOPIC: Issue with T3 channel mesher : no projection assigned

Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40763

  • a.barton
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BK 3.13.4-alpha is available; please let me know if doesn't work for you.

Kindly,
Alan
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40828

  • nicogodet
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I will give it a try as soon as I can ;)
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40851

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I'll be making a new Blue Kenue version after lunch today; in about 1-2 hours.

So, if you have any comments that might cause me to delay the new alpha version please speak up :)

Kindly,
Alan
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40853

  • nicogodet
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Unfortunately I don't have time right know but if it can wait tomorrow, I will give you a feedback in tomorrow morning !
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40854

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ok... I'll wait till tomorrow. Thanks for taking the time to take a look :)

Kindly,
Alan
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40866

  • nicogodet
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So.

I'm not able to display the generated mesh (and it seems bugged in some ways as it breaks other things)
See Downloads.zip for left and right bank and outline.

Channel mesher
Screenshot_5.png


Add generated mesh in view
Screenshot_6.png

See nothing

Create a mesh generator, add "fixSavere" as outline, generate -> OK

Add generated channel mesh as submesh ->
Screenshot_7.png

Error

Try to delete submesh

Screenshot_8.png


Error
Attachments:
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40874

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Thanks for helping me test this! Now I have a nice juicy breakfast meal to "snack" on :blush:
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40876

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On my development alpha it works.
2022-08-24_BK_ChannelMesh.png


Likely I fixed the same issue you're raising over here: #40799

I'm going to go ahead with creating the new BK 3.12.5-alpha and you can try that one; as we are chasing our tail a bit at the moment.

Kindly,
Alan
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40877

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The mesh created by the Channel Mesher is not removable. Therefore, when you drag and drop it as a sub-mesh of the Mesh Generator an exact copy of the channel mesh is created and then it is added. And hence the submesh is not removeable. I've changed this behaviour so that the copy will be removeable.

Also, a likely workaround in BK 3.12.4-alpha and earlier, would be to save the channel mesh to a file and then load it again from that file. Then, that newly loaded mesh should be removeable when dragged to the submesh of the mesh generator.

In any case, for BK 3.12.5-alpha dragging a channel mesh to a submesh of the mesh generator will no longer have this issue and you should no longer need to save the channel mesh to a file and then reload it.

I'm going to now try generating the mesh using your outline and your submesh to see if I get the same error message as you did.

Kindly,
Alan
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Issue with T3 channel mesher : no projection assigned 1 year 8 months ago #40878

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As a side question...

You loaded the shape file with the left and right banks and then did you drag the lineset onto the LeftBank and then drag the same thing again onto the RightBank?

I extracted out the left bank and right bank separately after loading the shape file and then put them in their own files. Then I loaded them separately and dragged them separately to the LeftBank and the RightBank.

At this time, I'm unclear if your approach also works. It would be more direct than mine, that's for sure :)

Kindly,
Alan
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