Bug#590036: tangogps: georss2tangogps-poi update for polygons

[Paul Wise]

Package: tangogps
Severity: wishlist

Please update the georss2tangogps-poi script to the attached version. It
adds support for polygons, which are used extensively in the DebConf10
Google maps overlay GeoRSS file. It basically takes an average of all
the points and adds a POI for that. It works well enough for DC10.

-- 
bye,
pabs

http://wiki.debian.org/PaulWise

#!/usr/bin/python
#
# Basic program to import GeoRSS points into TangoGPS as points of interest
#
# Copyright 2009 Paul Wise
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

import os
import sys
import random
import sqlite3
import feedparser
from BeautifulSoup import BeautifulSoup, BeautifulStoneSoup

def link2txt(a):
	a_text = ''.join(a).strip()

	if a['href'][0] == '/':
		a['href'] = 'http://maps.google.com%s' % a['href']

	if a_text == '':
		return a['href']

	if a_text.lower() == a['href'].lower():
		return a['href']

	return '%s (%s)' % (a_text,a['href'])


poi = []

con = sqlite3.connect(os.path.expanduser('~/.tangogps/poi.db'))
cur = con.cursor()

for arg in sys.argv[1:]:
	for e in feedparser.parse(arg).entries:
		if e.has_key('georss_point'):
			(lat, lon) = e.georss_point.split()
		elif e.has_key('gml_pos'):
			(lat, lon) = e.gml_pos.split()
		elif e.has_key('gml_polygon'):
			total_lat = 0
			total_lon = 0
			total_points = 0
			for line in e.gml_poslist.splitlines():
				(lat, lon) = line.strip().split()
				total_lat += float(lat)
				total_lon += float(lon)
				total_points += 1
			lat = total_lat/total_points
			lon = total_lon/total_points
		else:
			print 'georss2poi: warning: %s: unhandled feed item (not a point): %s' % (arg, e.title)
			continue
		rand1 = random.randint(100000000,1000000000)
		rand2 = random.randint(100000000,1000000000)
		rand = '%s%s' % (rand1,rand2)
		desc = e.description
		soup = BeautifulSoup(desc,convertEntities=BeautifulStoneSoup.HTML_ENTITIES,smartQuotesTo=None)
		[img.extract() for img in soup.findAll('img')]
		[br.replaceWith('\n') for br in soup.findAll('br')]
		[a.replaceWith(link2txt(a)) for a in soup.findAll('a')]
		desc = ''.join(soup.findAll(text=True)).strip()
		poi.append((rand,lat,lon,e.title,desc))

cur.executemany('INSERT INTO poi (idmd5,lat,lon,keywords,desc,visibility,cat,subcat,price_range,extended_open) VALUES (?,?,?,?,?,1.0,0.0,0.0,1.0,0.0)', poi)

con.commit()
con.close()

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