temo verb — Classical Nahuatl: [1] to descend, to go down.
Creates a colorful maze inspired by a famous one line C64 BASIC program (10 PRINT CHR$(205.5+RND(1)); : GOTO 10). Output is generated as a set
of vector shapes in Scalable Vector Graphics (SVG) format and printed on the standard output stream.
An installation of Python 3 (any version above v3.5 will do fine). For the optional PNG output support an installation of
the cairosvg 3rd-party Python module is recommended. The module can be installed with Python's package manager:
pip --install cairosvg --user
usage: temo.py [-V] [-h] [--columns INT] [--rows INT] [--scale FLOAT]
[--random-seed INT] [--frame FLOAT] [--stroke-width FLOAT]
[--background-color COLOR] [--hue-shift FLOAT]
[--hue-shift-line FLOAT] [--best-path-width FLOAT]
[--schotter-falloff {infinite,horizontal,vertical,radial,box,random}]
[--schotter-inverse] [--schotter-rotation FLOAT]
[--schotter-offset FLOAT] [-o FILENAME] [--output-size INT]
Startup:
-V, --version show version number and exit
-h, --help show this help message and exit
Algorithm:
--columns INT number of grid columns [:11]
--rows INT number of grid rows [:11]
--scale FLOAT base scale factor of the grid elements [:10.0]
--random-seed INT fixed initialization of the random number generator
for predictable results
Miscellaneous:
--frame FLOAT increase or decrease spacing around the maze [:20.0]
--stroke-width FLOAT width of the generated strokes [:2.0]
--background-color COLOR
SVG compliant color specification or identifier; adds
a background <rect> to the SVG output
--hue-shift FLOAT amount to rotate an imaginary color wheel before
looking up new colors (in degrees) [:15.0]
--hue-shift-line FLOAT
separate hue shift for continuous lines; if not passed
`--hue-shift' applies too
--best-path-width FLOAT
show the best (aka the longest) path through the maze
and set width of its marker line
Schotter:
--schotter-falloff {infinite,horizontal,vertical,radial,box,random}
enable `George Nees'-style randomizing rotations and
offsets of the maze's line segments
--schotter-inverse flip the schotter mapping of the selected mode
--schotter-rotation FLOAT
rotational variance for schottering [:0.5]
--schotter-offset FLOAT
positional variance for schottering [:0.25]
Output:
-o FILENAME, --output FILENAME
optionally rasterize the generated vector paths and
write the result into a PNG file (requires the
`svgcairo' Python module)
--output-size INT force pixel width of the raster image, height is
automatically calculated; if omitted the generated SVG
viewbox dimensions are used
# Generate a SVG file
./temo.py --columns=8 --rows=5 > output.svg
# Rasterize directly into a PNG file (requires "cairosvg")
./temo.py --hue-shift=4 -o output.png# One Tiny Worm in its Home
./temo.py \
-o "tinyworm.png" \
--output-size=320 \
--stroke-width=1 \
--hue-shift=15 \
--hue-shift-line=0 \
--best-path-width=2 \
--rows=3 \
--columns=3 \
--background="#1a1b2c"# Preview output with ImageMagick's "convert" and Preview.app (Mac OS X)
./temo.py --random-seed=12345 | convert svg:- png:- | open -f -a Preview.app
# Preview output with ImageMagick's "convert" and "display" (Linux/BSD/etc.)
./temo.py --random-seed=12345 | convert svg:- png:- | display| 1.3 | 09-Jul-2020 |
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| 1.2 | 21-Jun-2020 |
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| 1.1 | 19-Jun-2020 | Initial public source code release |