It seems like the massmatrix and cotmatrix functions are always returning an empty matrix, without any errors or warnings. Here is a simple setup:
import igl
print(igl.__version__)
V,F = igl.triangulated_grid(3,3)
M1 = igl.massmatrix(V,F,igl.MASSMATRIX_TYPE_BARYCENTRIC)
M2 = igl.massmatrix(V,F,igl.MASSMATRIX_TYPE_VORONOI)
L = igl.cotmatrix(V,F)
print(M1)
print(M2)
print(L)
Prints:
2.5.1
<Compressed Sparse Column sparse matrix of dtype 'float64'
with 0 stored elements and shape (9, 9)>
<Compressed Sparse Column sparse matrix of dtype 'float64'
with 0 stored elements and shape (9, 9)>
<Compressed Sparse Column sparse matrix of dtype 'float64'
with 0 stored elements and shape (9, 9)>
I ran this on a bare-bones venv, using Python 3.12.7. Pip freeze shows:
libigl==2.5.1
numpy==2.1.2
scipy==1.14.1
And strangely dropping the Python version to 3.11.10 and using libigl==2.4.1 does not help either.
Am I missing some sort of dependency?
It seems like the massmatrix and cotmatrix functions are always returning an empty matrix, without any errors or warnings. Here is a simple setup:
Prints:
I ran this on a bare-bones venv, using Python 3.12.7. Pip freeze shows:
And strangely dropping the Python version to 3.11.10 and using
libigl==2.4.1does not help either.Am I missing some sort of dependency?