Penkit is a library of utility functions generating pen plots <https://en.wikipedia.org/wiki/Plotter>__ from Python/numpy.
Requirements: Python 2.7 or 3.x, numpy, scipy. Preview modules require ipython or matplotlib.
# pip install penkittutorial notebooks <tutorial> or run them on Binder <https://mybinder.org/v2/gh/paulgb/penkit.git/master?filepath=tutorial>Module Documentation <http://penkit.readthedocs.io/en/latest/>_Grid Surface Projection
.. code:: python
from penkit.textures import make_grid_texture
from penkit.textures.util import rotate_texture
from penkit.surfaces import make_noise_surface
from penkit.write import write_plot
from penkit.projection import project_and_occlude_texture
# create a texture
grid_density = 68
texture = make_grid_texture(grid_density, grid_density, 100)
# rotate the texture
texture = rotate_texture(texture, rotation=65)
# create the surface
surface = make_noise_surface(blur=28, seed=12345) * 10
# project the texture onto the surface
proj = project_and_occlude_texture(texture, surface, angle=69)
# plot the result
write_plot([proj], 'examples/grid_surface.svg')
.. image:: examples/grid_surface.svg
:width: 400px
Hilbert Curve Surface Projection.. code:: python
from penkit.fractal import hilbert_curve
from penkit.textures.util import fit_texture, rotate_texture
from penkit.surfaces import make_noise_surface
from penkit.projection import project_and_occlude_texture
from penkit.write import write_plot
# create a texture
texture = hilbert_curve(7)
# rotate the texture
texture = rotate_texture(texture, 30)
texture = fit_texture(texture)
# create the surface
surface = make_noise_surface(blur=30) * 5
# project the texture onto the surface
proj = project_and_occlude_texture(texture, surface, 50)
# plot the result
write_plot([proj], 'examples/hilbert_surface.svg').. image:: examples/hilbert_surface.svg :width: 400px
.. image:: https://travis-ci.org/paulgb/penkit.svg?branch=master :target: https://travis-ci.org/paulgb/penkit
.. image:: https://mybinder.org/badge.svg :target: https://mybinder.org/v2/gh/paulgb/penkit.git/master?filepath=tutorial