I stuck in the triangle.exe

[Alvin-prc]

I'm learning the "Triangular mesh example" in https://flopy.readthedocs.io/en/stable/Notebooks/dis_triangle_example.html.

I am not sure if I have compiled the correct exe file, anyway I put the exe file in the root directory and still get an error:

from flopy.utils.triangle import Triangle
tri = Triangle(maximum_area=500, angle=30, model_ws=workspace)
tri.add_polygon(circle_poly)
tri.build(verbose=False)
fig = plt.figure(figsize=(10, 10))
ax = plt.subplot(1, 1, 1, aspect="equal")
pc = tri.plot(ax=ax)

AttributeError Traceback (most recent call last)
Cell In[17], line 7
5 tri = Triangle(maximum_area=500, angle=30, model_ws=workspace)
6 tri.add_polygon(circle_poly)
----> 7 tri.build(verbose=False)
8 fig = plt.figure(figsize=(10, 10))
9 ax = plt.subplot(1, 1, 1, aspect="equal")

File C:\ProgramData\Anaconda3\lib\site-packages\flopy\utils\triangle.py:189, in Triangle.build(self, verbose)
187 # load the results
188 self._load_results()
--> 189 self.ncpl = self.ele.shape[0]
190 self.nvert = self.node.shape[0]
192 # create verts and iverts

AttributeError: 'NoneType' object has no attribute 'shape'

Can you tell me what might be wrong or give me a correct triangle.exe? My computer is Win 11

[wpbonelli]

The triangle program is distributed with the rest of the MODFLOW executables. You might try with the distributed executable instead of building triangle from source.

Your error indicates self.ele is None, which would occur if the .ele output file was not produced as expected. (Perhaps flopy's triangle wrapper should warn in that case.)

[Alvin-prc]

Appreciate it

[jdhughes-usgs]

triangle is also available from conda-forge