Generative Art in Go: httpd server and cli command line
Generate images (patterns) from a simple formula:
color = ( C - C * X * Y ) mod MAX
C is a constante, ``(X, Y)` coordinates and MAX the number of colors.
To get help:
$ bin/genart -help
Usage of bin/genart:
-colors int
number of colors (default 216)
-constant int
constant for formula (c): c-c*x*y (default 10)
-filename string
filename to save image (.png) (default "formulaimg.png")
-formula string
formula to use (default "ccxy")
-size int
size of image (default 1000)
Generating an image:
$ make genart
$ bin/genart -filename output.png -colors 100
To get the same image from above cmd line example:
make runserver
Then, on another terminal (or from browser):
$ curl -v http://127.0.0.1:8090/ccxy/size/1000/constant/10/colors/100/ --output output.png
$ curl -v http://localhost:8090/ccxy/size/1000/constant/20/colors/200/ --output images/ccxy_size:1000_constant:20_colors:200.png
$ bin/genart -formula=ccxy -size=1000 -constant=20 -colors=200 -filename=images/ccxy_size:1000_constant:20_colors:200.png
$ curl -v http://localhost:8090/xcyc/size/1000/constant/2/colors/70/ --output images/xcyc_size:1000_constant:2_colors:70.png
$ bin/genart -formula=xcyc -size=1000 -constant=2 -colors=70 -filename=images/xcyc_size:1000_constant:2_colors:70.png
$ curl -v http://localhost:8090/ccxy/size/1000/constant/2/colors/70/ --output images/ccxy_size:1000_constant:2_colors:70.png
$ bin/genart -formula=ccxy -size=1000 -constant=2 -colors=70 -filename=images/ccxy_size:1000_constant:2_colors:70.png
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