# Structured Triangular Type of Mesh of "T" section

**URL:** https://community.freefem.org/t/structured-triangular-type-of-mesh-of-t-section/1661
**Category:** General Discussion
**Created:** [April 11, 2022, 7:18pm UTC](https://community.freefem.org/t/structured-triangular-type-of-mesh-of-t-section/1661 "2022-04-11T19:18:10Z")
**Posts on this page:** 1
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### Author: ![Emma87](https://avatars.discourse-cdn.com/v4/letter/e/e47774/32.png) [@Emma87](https://community.freefem.org/u/Emma87)
#### Post date: [April 13, 2022, 3:49am UTC](https://community.freefem.org/t/structured-triangular-type-of-mesh-of-t-section/1661/4 "2022-04-13T03:49:21Z")

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Hi D\_N\_Sarkar, can you see:

> [@How can i make a T-shaped mesh](https://community.freefem.org/t/how-can-i-make-a-t-shaped-mesh/1215/5):
>
> Hi Daniela, You should generate the mesh counterclockwise, see the following example: // border A(t=0,0.5){x=2+t;y=0; label=1;}; border B(t=0,2.5){x=2.5;y=t;label=2;}; border C(t=0,0.5){x=2.5+t;y=2.5;label=3;}; border D(t=0,0.5){x=3;y=2.5+t;label=4;}; border E(t=0,1){x=3-1.5\*t;y=3;label=5;}; border F(t=0,0.5){x=1.5;y=3-t;label=6;}; border G(t=0,0.5){x=1.5+t;y=2.5;label=7;}; border H(t=0,2.5){x=2;y=2.5-t;label=8;}; int n=10; mesh Th=buildmesh(A(n)+ B(n)+ C(n)+ D(n)+ E(n)+ F(n)+ G(n)+ …

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