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"""
.. _create_pixel_art_example:
Pixel Art of ALIEN MONSTERS
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Here we use :func:`pyvista.Box` to make `pixel art <https://en.wikipedia.org/wiki/Pixel_art>`_.
Pixel string `source <https://commons.wikimedia.org/wiki/File:Noto_Emoji_Pie_1f47e.svg>`_
and `license <https://github.com/googlefonts/noto-emoji/blob/main/LICENSE>`_.
"""
from __future__ import annotations
import pyvista as pv
from pyvista.demos import logo
# sphinx_gallery_start_ignore
PYVISTA_GALLERY_FORCE_STATIC_IN_DOCUMENT = False
# sphinx_gallery_end_ignore
# %%
# Convert pixel art to an array
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
alien_str = """
% %
% %
% % % % % %
% % % % % %
% % % % % % % % % %
% % % % % % % %
% % % %
% % % % % %
% %
% %
"""
alien = []
for line in alien_str.splitlines()[1:]: # skip first linebreak
if not line:
continue
long_line = line + (20 - len(line)) * ' ' if len(line) < 20 else line
alien.append([long_line[i : i + 2] == '% ' for i in range(0, len(long_line), 2)])
# %%
# Define function to draw pixels
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Define a helper function to add pixel boxes to plotter.
def draw_pixels(plotter, pixels, center, color): # noqa: PLR0917
bounds = [
center[0] - 1.0,
center[0] + 1.0,
center[1] - 1.0,
center[1] + 1.0,
-10.0,
+10.0,
]
for rows in pixels:
for pixel in rows:
if pixel:
box = pv.Box(bounds=bounds)
plotter.add_mesh(box, color=color)
bounds[0] += 2.0
bounds[1] += 2.0
bounds[0] = center[0] - 1.0
bounds[1] = center[0] + 1.0
bounds[2] += -2.0
bounds[3] += -2.0
return plotter
# %%
# Now you can plot a pixel art of ALIEN MONSTERS.
# Display MONSTERS
p = pv.Plotter()
p = draw_pixels(p, alien, [-22.0, 22.0], 'green')
p = draw_pixels(p, alien, [0.0, 22.0], 'green')
p = draw_pixels(p, alien, [22.0, 22.0], 'green')
p = draw_pixels(p, alien, [-22.0, 0.0], 'blue')
p = draw_pixels(p, alien, [0.0, 0.0], 'blue')
p = draw_pixels(p, alien, [22.0, 0.0], 'blue')
p = draw_pixels(p, alien, [-22.0, -22.0], 'red')
p = draw_pixels(p, alien, [0.0, -22.0], 'red')
p = draw_pixels(p, alien, [22.0, -22.0], 'red')
text = logo.text_3d('ALIEN MONSTERS', depth=10.0)
text.points *= 4.0
text.translate([-20.0, 24.0, 0.0], inplace=True)
p.add_mesh(text, color='yellow')
p.show(cpos='xy')
# %%
# .. tags:: load
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