Could I get rid off the light gray line in the polygon face?

[ZiguoAtGitHub]

Hi Marco,
As the following pic, there is one light gray diagonal line in each polygon face. Is it VTK's bug? And How can I get rid off them. Thanks!
BTW: I notice you have update VEDO website. It looks pretty good!
One little suggestion: If the function list of class is arranged alphabetically It will be better.
:)

#encoding:utf-8
from vedo import *

#verts = [(0,0,0), (10,0,0), (10,0,20),(0,0,20) ,(0,0,0), (0,0,20),(10,10,20),(10,10,0) ,(0,0,0), (10,0,0),(10,-10*2**0.5/2,20),(0,-10*2**0.5/2,20)]
verts = [(0,0,0), (10,0,0), (10,0,20),(0,0,20) ,(-10,10,20),(-10,10,0),(-10,0,0),(-10,0,20)]#
faces=[(0,1,2,3),(0,5,4,3),]#,(0,3,7,6)]
mesh=Mesh([verts,faces]).lw(0.1)
mesh.compute_normals()
#verts_normals=[mesh.pointdata['Normals'][ivrt] for ivrt in mesh.points]
stps=mesh.points()
endps=mesh.pointdata['Normals']
itemp=2
arrows=Arrows(stps,stps+mesh.pointdata['Normals'])
labs = mesh.labels('id').c('black')
itemp=10
#~~~
mesh2=mesh.clone().z(20).lw(0.1)
labs2 = mesh2.labels('id').c('black')
#~~~
cells=mesh.faces()
pt_normals=mesh.pointdata['Normals']
tcell=cells[0]
count=0
extrude_faces=[]
for icell in cells:
	share_pt=[]
	for ipt in icell:
		if ipt in tcell:share_pt.append(ipt)
	if len(share_pt)==2:
		pass
#~~~
show(mesh,mesh2,interactive=True)

[marcomusy]

As the following pic, there is one light gray diagonal line in each polygon face. Is it VTK's bug? And How can I get rid off them.

unfortunately this is a recent vtk bug (for sure it was not there in version 8.x) maybe you can try 9.0.3 (i dont remember if the bug was already there)

BTW: I notice you have update VEDO website. It looks pretty good!
One little suggestion: If the function list of class is arranged alphabetically It will be better.

done :)

[ZiguoAtGitHub]

As the following pic, there is one light gray diagonal line in each polygon face. Is it VTK's bug? And How can I get rid off them.

unfortunately this is a recent vtk bug (for sure it was not there in version 8.x) maybe you can try 9.0.3 (i dont remember if the bug was already there).
umh..... But here is one funny trick after I tried several times: the light gray line would disappear when setting the lw over 1.4.😂

BTW: I notice you have update VEDO website. It looks pretty good!
One little suggestion: If the function list of class is arranged alphabetically It will be better.

done :)
Good Job!👍