Problem 45230. Remove duplicated triangles
Input T is a triangulation (triplet list of indices -positive integers-, each index refering to a vertex number in a corresponding vertices list).
It sometimes happens a triangle may be duplicated several times. The goal of this problem is to remove all the duplicated triangles of T, and to keep only one.
For instance if :
T_in = [1 2 3;... 4 5 6;... 1 2 3;... 7 8 9;... 6 4 5;... 10 11 12;... 2 1 3;... 8 7 9;... 10 11 12]
then the output must be :
T_out = [1 2 3;... 4 5 6;... 7 8 9;... 10 11 12]
since rows [1 2 3], [6 4 5], [2 1 3], [8 7 9], and [10 11 12] are just duplicata. Indeed triangle [i2 i1 i3] is the same as triangle [i1 i2 i3] for example.
Hypothesis :
- T is always a N x 3 integer matrix with N > 0 (non empty matrix)
- Each row / triangle of T always contains three distinct integers
Good work Matlab bro ! :)
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers24
Suggested Problems
-
Remove the small words from a list of words.
1440 Solvers
-
16973 Solvers
-
341 Solvers
-
Sum of first n terms of a harmonic progression
402 Solvers
-
Calculate the height of an object dropped from the sky
228 Solvers
More from this Author9
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!