multi-scale tessellation

[Ming-is]

I want to generate a mosaic model with multi-scale tessellation. For example,

1.I want to generate a mosaic model of 2-scale tessellation. For example,

to generate a 10 grain “gg” morphology model, specify that the fifth grain is subdivided into a layered structure with a width of 0.1, and the other grains are not subdivided. What instructions should I use?

2..I want to generate a mosaic model of 3-scale tessellation.For example，to generate a 10 grain “gg”morphology model, specify that the fifth grain is subdivided into five clusters, and the clusters are subdivided into a layered structure with a width of 0.1， and the other grains are not subdivided. What instructions should I use?

[rquey]

1:

You have to use a multiscale cell file to pass different option values to each first-scale cell:

neper -T -n "10::msfile(n_msfile)" -morpho "gg::msfile(morpho_msfile)" -o d

where the multiscale files are:

n_msfile:

1 1
2 1
3 1
4 1
5 from_morpho
6 1
7 1
8 1
9 1
10 1

morpho_msfile:

1 voronoi
2 voronoi
3 voronoi
4 voronoi
5 lamellar(w=0.1)
6 voronoi
7 voronoi
8 voronoi
9 voronoi
10 voronoi

Visualize:

neper -V d.tess -datacellcol "scaleid(1)" -datacelltrs 0.5 -print img

2:

Same principle:

neper -T -n "10::msfile(n_msfile2)::msfile(n_msfile3)" -morpho "gg::voronoi::msfile(morpho_msfile3)" -o d

where the multiscale files are:

n_msfile2:

1 1
2 1
3 1
4 1
5 5
6 1
7 1
8 1
9 1
10 1

n_msfile3:

1::1 1
2::1 1
3::1 1
4::1 1
5::1 from_morpho
5::2 from_morpho
5::3 from_morpho
5::4 from_morpho
5::5 from_morpho
6::1 1
7::1 1
8::1 1
9::1 1
10::1 1

morpho_msfile3:

1::1 voronoi
2::1 voronoi
3::1 voronoi
4::1 voronoi
5::1 lamellar(w=0.1)
5::2 lamellar(w=0.1)
5::3 lamellar(w=0.1)
5::4 lamellar(w=0.1)
5::5 lamellar(w=0.1)
6::1 voronoi
7::1 voronoi
8::1 voronoi
9::1 voronoi
10::1 voronoi

Visualize:

neper -V d.tess -datacellcol "scaleid(1)" -datacelltrs 0.5 -print img

It is also possible to merge the different multiscale cell files (n_msfile2 and n_msfile3, in the above) - Neper scans the file until it finds the correct multiscale id at the beginning of the line.

[rquey]

Use -statcell "scaleid(1),scaleid(2)" to know the "parent" cells of a cell at scale 1, 2. Works for any number of scales...

[wanli096]

Thank you for your reply!

I used the above command to generate a file containing ID information, but I want to distinguish secondary tessellation by ID, where secondary tessellation is only performed in some units. Can this be achieved? For example, the ID of units 1-7 is 1, the ID of units 8 is 2, and only units 8 are divided during secondary tessellation. May I ask if this can be achieved through instructions?

[rquey]

In the new version (4.6.2-3), use -statcell scale:

neper -T -n "10::msfile(nb)" -statcell scale -dim 2 -id 2 -o d
neper -V d.tess -datacellcol scale -print img

nb:

1  1
2  1
3  1
4  1
5  1
6  1
7 10
8 10
9 10
10 10

[86zhangzhongwen]

1:

您必须使用多尺度单元格文件将不同的选项值传递给每个第一尺度单元格：

neper -T -n "10::msfile(n_msfile)" -morpho "gg::msfile(morpho_msfile)" -o d

其中，多尺度文件为：

n_msfile：

1 1
2 1
3 1
4 1
5 from_morpho
6 1
7 1
8 1
9 1
10 1

morpho_msfile：

1 voronoi
2 voronoi
3 voronoi
4 voronoi
5 lamellar(w=0.1)
6 voronoi
7 voronoi
8 voronoi
9 voronoi
10 voronoi

可视 化：

neper -V d.tess -datacellcol "scaleid(1)" -datacelltrs 0.5 -print img

2:

Same principle:

neper -T -n "10::msfile(n_msfile2)::msfile(n_msfile3)" -morpho "gg::voronoi::msfile(morpho_msfile3)" -o d

where the multiscale files are:

n_msfile2:

1 1
2 1
3 1
4 1
5 5
6 1
7 1
8 1
9 1
10 1

n_msfile3:

1::1 1
2::1 1
3::1 1
4::1 1
5::1 from_morpho
5::2 from_morpho
5::3 from_morpho
5::4 from_morpho
5::5 from_morpho
6::1 1
7::1 1
8::1 1
9::1 1
10::1 1

morpho_msfile3:

1::1 voronoi
2::1 voronoi
3::1 voronoi
4::1 voronoi
5::1 lamellar(w=0.1)
5::2 lamellar(w=0.1)
5::3 lamellar(w=0.1)
5::4 lamellar(w=0.1)
5::5 lamellar(w=0.1)
6::1 voronoi
7::1 voronoi
8::1 voronoi
9::1 voronoi
10::1 voronoi

Visualize:

neper -V d.tess -datacellcol "scaleid(1)" -datacelltrs 0.5 -print img

It is also possible to merge the different multiscale cell files ( and , in the above) - Neper scans the file until it finds the correct multiscale id at the beginning of the line.n_msfile2``n_msfile3

How to set the layered structure to have different widths, such as the layered structures with widths of 0.9 and 0.1 appearing alternately in the picture

[rquey]

Use -morpho lamellar(w=0.09:0.01).

[charanjo]

Is it possible to get three different Voronoi grain size across a rectangular domain?

[rquey]

If you mean a 3-scale tessellation, yes:

neper -T -n 10::10::10 -o 3scale
neper -V 3scale.tess -datacellcol "scaleid(1)" -print img1
neper -V 3scale.tess -datacellcol "scaleid(2)" -print img2

[charanjo]

Hi,
Not a 3 -Scale tessellation. For example, in a 2D domain, I need a grain size of say 10 15 and 20 at different depths. Is it possible to obtain that?

[wanli096]

Dear Romain,
May I ask if it is possible to determine the multi-scale cell embedding through the ID? For example, the first-level embedding can be divided into ID1 and ID2 based on the X-coordinate. Then the second-level embedding can be done for ID2, while ID1 does not undergo the second-level embedding.