Hi Yao-Cheng,
I was able to build the meshes for all these 3 files and RandomFactor=1e-6:
10K on Linux Mint 64bit, gmsh 2.8.5
50K on Linux Mint 64bit, gmsh 2.8.5
100K on Mac OS X 64bit, gmsh 2.8.4 (but I think it will work on Linux as
well)
Best,
Mikhail
On 01/16/2015 01:11 AM, Yao-Cheng Tien wrote:
Hi Mikhail,
I have attached three more testcases. I have tried to embed 10k, 50k,
and 100k lines(with length 1) to a surface separately. The element
size is 1.
The issue is that the 2d mesh(meshAdapt) works for 10k and 50k after
setting the Mesh.RandomFactor to 1e-6. However, the 100k one fails
even when I increase the Mesh.RandomFactor to 1e-4. The error message
is "Identical points in triangulation: increase element size or
Mesh.RandomFactor"
My questions are:
1. Is there any limit about the number of embedded lines? 100k
embedded lines are too much?
2. Any setting I missed to make it work?
Thank you!
Best,
YC
On Thu, Jan 15, 2015 at 8:59 AM, Yao-Cheng <[email protected]
<mailto:[email protected]>> wrote:
Hi Mikhaul,
My mistake. I'm trying different settings to fix that actually.
The original geo file indeed has lc=1 but still fails. I have also
tried lc=0.1 0.5.
I know it's ok if I have only 1 line or even 10k lines. But in my
situation, I probably need to have up to 1 million lines. Any
suggestion?
Thank you.
Best,
YC
> On Jan 15, 2015, at 6:26 AM, Mikhail Artemyev
<[email protected] <mailto:[email protected]>>
wrote:
>
> Hi,
>
> Your lines have length 1, while the characteristic length of the
mesh you defined was 10.
> What happens if you set lc = 1?
> With only one line embedded it works fine for me (and
RandomFactor=1e-8), but I didn't try for all 50K of them.
>
> Best,
> Mikhail
>
>
>> On 01/15/2015 02:29 AM, [email protected]
<mailto:[email protected]> wrote:
>> Hi,
>>
>> I have encountered the issue "*Identical points in
triangulation: increase
>> element size or Mesh.RandomFactor*" in my 2D geometry file.
After looking
>> into previous support mails, I changed the Mesh.RandomFactor to
1e-8, 1e-7
>> until 1e-2. However, it still fails. Could you tell me what
other option I
>> should try since I am pretty new to Gmsh?
>>
>> My geometry is simple. I have a surface with size 1100 by 210.
Also, there
>> are 50K lines with length 1 embedded in that surface.
>>
>> Thanks for your help in advance!
>>
>> Best,
>> YC
>
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