# Uneven distribution of nodes by ToElementMesh[]

We are using FEM package to generate mesh in a circular sector. Somehow mesh becomes dense in upper right corner. Is there any way to circumvent this uneven distribution?

<< NDSolveFEM
circularSector =
ToElementMesh[Disk[{0, 0}, 1, {Pi/4, 3 Pi/4}],
MaxCellMeasure -> 0.002];
p1 = circularSector["Wireframe"]


Thank you very much in advance.

Sincerely,

Takashi Miura.

• This seems to be version dependent; I cannot reproduce this with version 11.3 for macOS. Mar 29 '19 at 7:25
• What version are you using? Mar 29 '19 at 7:54

## 1 Answer

That probably was a bug / shortcoming that is fixed in Version 11.3

\$Version
"11.3.0 for Linux x86 (64-bit) (March 7, 2018)"

<< NDSolveFEM
circularSector =
ToElementMesh[Disk[{0, 0}, 1, {Pi/4, 3 Pi/4}],
MaxCellMeasure -> 0.002];
p1 = circularSector["Wireframe"]


• It turned out that my student is using older version. Thank you very much! Mar 29 '19 at 9:17
• @TakashiMiura, you are most welcome. If you or your students have interesting application examples, I am always looking for those to add them to the FEMAddOns. See in the FEMAddOns Application folder. Mar 29 '19 at 10:25