Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Compute the Voronoi entropy of a mesh region
ResourceFunction["MeshVoronoiEntropy"][mesh] computes the Voronoi entropy for the MeshRegion mesh. |
Compute the entropy of a hex mesh:
In[1]:= |
Out[1]= |
Generate a set of points arranged in a square lattice:
In[2]:= |
Out[2]= |
Generate the associated mesh region:
In[3]:= |
Out[4]= |
The resulting Voronoi entropy equals zero:
In[5]:= |
Out[5]= |
A Voronoi tessellation built from slightly distorted hexagons has a corresponding entropy equal to zero, since there is only one kind of polygon (P1=1; ln P1=0).
In[6]:= |
Out[6]= |
Generate lattice points from the basis plus distortion:
In[7]:= |
Out[7]= |
Create a mesh:
In[8]:= |
Out[9]= |
In[10]:= |
Out[10]= |
A semi-regular set of points obtained by alternatively deleting sites from a square lattice gives a twin-tile tessellation with regular hexagons and smaller squares:
In[11]:= |
Out[5]= |
Generate the corresponding mesh:
In[12]:= |
Out[7]= |
The Voronoi entropy is =0.6365:
In[13]:= |
Out[13]= |
A hexagonal lattice basis:
In[14]:= |
Out[14]= |
Add distortions:
In[15]:= |
Out[15]= |
Create an irregular hexagonal mesh:
In[16]:= |
Out[17]= |
A Voronoi tessellation built from slightly distorted hexagons has a corresponding entropy still equal to zero, since there is only one kind of polygon (P1=1; ln P1=0):
In[18]:= |
Out[18]= |
By increasing the distortion, the Voronoi entropy increases in value:
In[19]:= |
In[20]:= |
Out[21]= |
In[22]:= |
Out[22]= |
Create a 2D set of points obtained from a spatial Poisson point process:
In[23]:= |
Out[26]= |
Generate a Voronoi mesh and show it along with the points:
In[27]:= |
Out[27]= |
The Voronoi entropy is S{XMLElement[i, {}, {XMLElement[span, {class -> stylebox}, {vor}]}]}=1.71 according to the value reported in the literature for a randomly distributed set of points:
In[28]:= |
Out[28]= |
Wolfram Language 13.0 (December 2021) or above
This work is licensed under a Creative Commons Attribution 4.0 International License