User Forum of Software BASEMENT

UP

User

Registered: 2025-03-23

Posts: 8

Mesh via triangle failed

Meshing via triangle failed
Node result file not found.

Prefix of triangle output-files: Qual_Mesh

Plugin directory: C:/Users/LENOVO/AppData/Roaming/QGIS/QGIS3/profiles/default\python/plugins/basemesh_v1

Triangle successfully initialized

Processing input data...

Layer with breaklines specified: Breaklines

> Layer with regions specified: Region_points

- field with maximum element size data: max_area

- field with material index data: MATID

- Field with hole marker: hole

TRIANGLE INPUT file Qual_Mesh_Quality.poly successfully written

> EXECUTION OF TRIANGLE... <

Opening C:/Users/LENOVO/AppData/Roaming/QGIS/QGIS3/profiles/default/python/plugins/basemesh_v1/triangle_tempfiles/Qual_Mesh_Quality.poly.
Constructing Delaunay triangulation by divide-and-conquer method.
Recovering segments in Delaunay triangulation.
Removing unwanted triangles.
Spreading regional attributes and area constraints.
Adding Steiner points to enforce quality.
Error:  Ran out of precision at (508538.838454, 3074459.22696).
I attempted to split a segment to a smaller size than
  can be accommodated by the finite precision of
  floating point arithmetic.
Try increasing the area criterion and/or reducing the minimum
  allowable angle so that tiny triangles are not created.

It is truly disgusting that I can't add the screenshot easily.

After this error I changed the boundary and proceed and made the 2dm file and basement model but while running basement, node id error comes Says: "Simulation stopped due to error:
The edge string 'Lake' is not correct. No edge found fo these node number 4796 5523. Please correct the edge string in the command file. basement terminated". While checking this node in QGIS I found that these nodes comes outside the lake breakline I made. when correcting it another node error comes again.

What should I do now? i used Basemesh v1.4.6 and basement 2.8.2.

Last edited by UP (Yesterday 15:45:01)

UP

User

Registered: 2025-03-23

Posts: 8

Re: Mesh via triangle failed

While trying making mesh via Basemesh v2, i got this error,

-------------------------------------------
Following nodes don't belong any element!!!
-------------------------------------------
63059    63061    63103    63105    63107    63109    63111    63113    63115    63117    63119   
63121    63123    63125    63127    63129    63131    63133    63135    63137    63139    63141   
63143    63145    63147    63149    63151    63153    63155    63157    63396    63400    63404   
63408    63412    63416    63420    63424    63428    63432    63436    63440    63444    63448   
63452    63456    63460    63464    63468   

I got this error in .err file. what are the reasons for these sort of errors?