Node numbering is inconsistent

[YMDONG23]

hello :)
When I use the BEAM188 unit to calculate, the node number displayed in the eplot window is not the same as the node number when vtk=False. What is the reason?

If you could discuss with me, thank you very much for your help！

[mikerife]

Hi @YMDONG23 this is a plotting bug so I created an Issue from this discussion. I thought that there was already an Issue for this but I cannot find it now. Mike

[YMDONG23]

thanks

[germa89]

Hi @YMDONG23

If you share the model you used, we can make sure then we are working on the same conditions.

Thank you!

[YMDONG23]

This is the code i used, and the ansys version is 2021R1.

from ansys.mapdl.core import launch_mapdl
import pyvista as pv
import numpy as np
from matplotlib.colors import ListedColormap
mapdl = launch_mapdl(exec_file='F:\\ANSYS Inc\\v211\\ansys\\bin\\winx64\\MAPDL.exe') 
mapdl.prep7()
mapdl.et(1, "BEAM188")
mapdl.mp("EX", 1, 2e7)  
mapdl.mp("PRXY", 1, 0.27)  #  Poisson's ratio
sec_num = 1
mapdl.sectype(sec_num, "BEAM", "CTUBE", "ISection", 3) 
mapdl.secdata(20,40,8) 

mapdl.prep7()
mapdl.n(1,193,0,0)
mapdl.n(2,261,0,0)
mapdl.n(3,425,0,0)
mapdl.n(4,526,0,0)

mapdl.e(1,2)
mapdl.e(2,3)
mapdl.e(3,4)

mapdl.pnum('node',1)
mapdl.nplot(vtk=False)
mapdl.eplot(vtk=True,show_node_numbering=True)

mapdl.finish()
mapdl.exit()