alexkaz2 / hexalattice

Create and plot hexagonal lattices

hexalattice

Generate and plot hexagonal lattices in 2D, with fine control over spacing between hexagons, arbitrary rotation of the grid around central tile, etc. The module computes and returns the center point for each of the tiles in the lattice.

Installation

# Using pip
pip install hexalattice

# Using conda
conda install -c conda-forge hexalattice

Usage example

Create and plot 5x5 lattice of hexagons (as in first image):

from hexalattice.hexalattice import *
hex_centers, _ = create_hex_grid(nx=5,
                                 ny=5,
                                 do_plot=True)
                                 
plt.show()    # import matplotlib.pyplot as plt

Get central points of the hexagons:

tile_centers_x = hex_centers[:, 0]
tile_centers_y = hex_centers[:, 1]

Plot one grid over the other, second with spacing around the hexagons:

_, h_ax = create_hex_grid(nx=5, 
                          ny=7,
                          do_plot=True,
                          edge_color=(0.85, 0.85, 0.85))
                                    
create_hex_grid(nx=5,
                ny=7,
                do_plot=True,
                edge_color=(0.25,0.25, 0.25),
                h_ax=h_ax,
                plotting_gap=0.3)
plt.show()

Create Moiré pattern from two circularly cropped hexagrids:

hex_grid1, h_ax = create_hex_grid(nx=50,
                                  ny=50,
                                  rotate_deg=0,
                                  min_diam=1,
                                  crop_circ=20,
                                  do_plot=True)
    create_hex_grid(nx=50,
                    ny=50,
                    min_diam=1,
                    rotate_deg=5,
                    crop_circ=20,
                    do_plot=True,
                    h_ax=h_ax)

For API and additional examples see the wiki hexalattice API and assigning individual colors to hexagons.

Release History

• v1.0.0 - First version
• v1.1.0 - Added the option to assign different colors to hexagons
• v1.2.0 - Added control over the outer line width of the hexagons
• v1.2.2 - Added control over the axis background color
• v1.3.0 - Reduced runtime by 50%

About & License

Alex Kazakov – @bio_vs_silico – [e-mail]

Distributed under the MIT license. See LICENSE for more information.

https://github.com/alexkaz2/hexalattice