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Convex Municipalities of Puerto Rico

Today we will learn about convex hulls using GeoPandas.

The result is less dramatic when we apply to the map of PR. El resultado.

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# -*- coding: utf-8 -*-
import scraperwiki, urllib2, re, urllib
from bs4 import BeautifulSoup

def download():
	file("CAdS",'w').write(urllib.urlopen("www.uaca.ac.cr/bv/ebooks/novela/3.pdf").read())

def scrape():
	u=file("CAdS.pdf")
	x=scraperwiki.pdftoxml(u.read())

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; greatest common divisor 

(defn gcd [a b]
  (if (= b 0)
      a
      (gcd b (rem a b))))


; > (gcd 15 25)
; > 5

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(def zero {:L nil :R nil   } )

(def one {:L zero :R  nil  })

(def half {:L zero :R one })

(defn neg [x] (if (= x nil) nil  { :L (neg (:R x) )  :R (neg (:L x))  }) )

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from skimage import io
import matplotlib.pyplot as plt
import numpy as np

plt.rcParams['figure.figsize'] = 6,6
 
im = io.imread("filename.jpg") 

#crop
piece = im[1250:2250, 1250:2250,:]

mango314

screencasts on ubuntu have been a pain in the neck. this gist is to document some of the difficulties so I don't have to repeat them.

the idea started when trying to convert a d3.js graphic into animatic gif and found this github program. The term is screen capture

• http://stackoverflow.com/questions/20864874/creating-animated-gif-files-out-of-d3-js-animations

Here is what I came up with

• record the avi with ffmpeg
• converge the ffmpeg to gif with imagemagic

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Voronoi Tesselation

Move your mouse around

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Voronoi Tesselation

Move your mouse around

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main : Element
main = flow down
	[ leftAligned (toText "A")
	, leftAligned (toText "B")
	, leftAligned (toText "C")
  ]

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main : Element
main = collage 400 400 
         (map (move (50, 0) )( 
         (motif x red ) ++ (motif (t x) blue ) ++ (motif (t (t x)) green ) ++
         (motif (t (t (t x))) orange ) ))
        
-- build motif from path and color

motif : [(number, number)] -> Color -> [Form]
motif z color = [ traced (solid color) (path z) , move ( last z) (filled color (circle 3.0))]