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Last change
on this file since 8682 was 8622, checked in by rick, 14 years ago |
- Haasje over tussen verschillende functies in files om ze op de juiste locatie te zetten.
- staticDNS.yaml is makkelijker te parsen en better te lezen
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File size:
1.3 KB
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| [8622] | 1 | CACHE_FILE = '/tmp/rd2etrs.yaml'
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| 2 | coordinates = None
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| 3 |
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| 4 | def etrs2rd(lam, phi):
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| 5 | """ Convert etrs to rd """
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| 6 |
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| 7 | item['lam'] = lam
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| 8 | item['phi'] = phi
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| 9 | item['func'] = 'etrs2rd'
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| 10 | url = 'http://vanderzwet.net/rdnap/%(func)s/%(xrd)s/%(yrd)s/0/' % item
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| 11 |
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| 12 | f = urllib.urlopen(url)
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| 13 | raw = f.read()
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| 14 |
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| 15 | rdnap_x,rdnap_y,rdnap_h = raw.split('/')
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| 16 | return (rdnap_x, rdnap_y)
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| 17 |
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| 18 |
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| 19 |
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| 20 | def rd2etrs(xrd, yrd, hnap=0.0):
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| 21 | """
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| 22 | Convert rd to etrs
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| 23 | JavaScript Version: https://rdinfo.kadaster.nl/rd/transformator.html
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| 24 | """
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| 25 | # Get cache is exists
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| 26 | global coordinates
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| 27 | if coordinates == None:
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| 28 | try:
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| 29 | coordinates = get_yaml(CACHE_FILE)
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| 30 | except (IOError,AttributeError):
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| 31 | coordinates = dict()
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| 32 | pass
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| 33 |
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| 34 | # Check if item in cache
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| 35 | xrd = float(str(xrd))
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| 36 | yrd = float(str(yrd))
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| 37 | if coordinates.has_key((xrd, yrd)):
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| 38 | return coordinates[(xrd, yrd)]
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| 39 |
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| 40 | # Get new coordinate
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| 41 | item = dict()
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| 42 | item['xrd'] = xrd
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| 43 | item['yrd'] = yrd
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| 44 | item['hnap'] = hnap
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| 45 | item['func'] = 'rd2etrs'
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| 46 | url = 'http://vanderzwet.net/rdnap/%(func)s/%(xrd)s/%(yrd)s/%(hnap)s/' % item
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| 47 | print "### Not in Cache, Fetching coordinate %s, %s from %s" % (xrd, yrd, url)
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| 48 | f = urllib.urlopen(url)
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| 49 | raw = f.read()
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| 50 |
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| 51 | lam,phi,h = raw.split('/')
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| 52 | coordinates[(xrd, yrd)] = (lam, phi)
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| 53 | write_yaml(CACHE_FILE, coordinates)
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| 54 | return (lam, phi)
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