helppyFormex - Support: sr #109519, Central points and helper lines...


sr #109519: Central points and helper lines selected off the model when using bifmesh plugin

Submitter:  None
Submitted:  Thu 28 Jun 2018 04:23:42 AM UTC
Category:  Plugins Priority:  5 - Normal
Severity:  3 - Normal Privacy:  Public
Assigned to:  None Originator Email:  -email is unavailable-
Open/Closed:  Open Operating System:  Microsoft Windows
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Thu 28 Jun 2018 11:55:44 AM UTC, comment #1: 


Try to translate the model first so that it is near to the x-y plane (z=0). You can e.g. use the Surface->Transform menu to do that.


Benedict Verhegghe <bverheg>
Project Administrator
Thu 28 Jun 2018 04:23:42 AM UTC, original submission:  

Hi All,

I am a new user of pyformex and I am trying to use the bifmesh plugin to make a hexahedral mesh of a side-to-end fistula (can be generalised as a bifurcation in terms of geometry). I am unable to get the centerlines because I run into the following error - IndexError - index 0 is out of bounds for axis 0 with size 0.

I think it is because my selections of the centerPoint and helperLines are not on the model itself. But no matter what view I use I am unable to select the centerpoints on the model itself because it selects a point approximately 98 units (mm in my case) behind the model for the centerPoint and a certain number of units infront of the model for the helperLines. I have attached pictures to illustrate my problem.

Does anyone know of a remedy to this problem? possibly exporting centerline data from vmtk?


Sanjiv Gunasekera



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Attach Files:

Attached Files
file #44497:  vmtk_centerline_isometric.png added by None (150KiB - image/png - The translation did not seem to work especially because the helperlines were also on a different plane. I got the centerlines from the vmtk function (under surface tab). I need to sync the vmtk centerline to the bifmesh. Any tips would help. Sanjiv)
file #44446:  centralpoint_frontview.png added by None (248KiB - image/png)
file #44447:  helperlines_frontview.png added by None (152KiB - image/png)
file #44448:  centralpoint_isometricview.png added by None (260KiB - image/png)
file #44449:  helperlines_isometricview2.png added by None (112KiB - image/png)


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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-07-03 None Attached File- Added vmtk_centerline_isometric.png, #44497
    2018-06-28 None Attached File- Added centralpoint_frontview.png, #44446
        Attached File- Added helperlines_frontview.png, #44447
        Attached File- Added centralpoint_isometricview.png, #44448
        Attached File- Added helperlines_isometricview2.png, #44449

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