Mercurial > dive4elements > river

annotate backend/contrib/shpimporter/floodmarks.py @ 6955:94cb1845c667

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(issue1452) Coalesce to zero to avoid NaN arithmetic.
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 30 Aug 2013 15:45:14 +0200
parents 5aa05a7a34b7
children 90ba3ae2ced1
rev   line source
5545
ed149d5d7fb7 Add floodmarks importer
Andre Heinecke <aheinecke@intevation.de>
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1 # -*- coding: utf-8 -*-
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2 try:
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3 from osgeo import ogr
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4 except ImportError:
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5 import ogr
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6
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7 from importer import Importer
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8 import logging
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9 import os
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10 import re
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11
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12 TABLE_NAME="flood_marks"
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13 PATH="Hydrologie/HW-Marken"
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14 NAME="Floodmarks"
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15
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16 logger = logging.getLogger(NAME)
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17
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18 BUILDING_KINDS= {
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19 "sonstige" : 0,
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20 "brücken" : 1,
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21 "wehre" : 2,
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22 "pegel" : 3,
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23 }
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24
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25 class Floodmark(Importer):
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26 fieldmap = {
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27 "^station$" : "km",
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28 "^km$" : "km",
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29 "^wsv-km$" : "km",
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30 "^FlussKm$" : "km",
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31 "^z$" : "z",
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32 "^z\d*" : "z", # z02, z1890, usw.
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33 "^m+NHN$" : "z",
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34 "^Ort$" : "location",
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35 "^Pegel$" : "location",
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36 }
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37
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38 def getPath(self, base):
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39 return "%s/%s" % (base, PATH)
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40
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41 def getTablename(self):
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42 return TABLE_NAME
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43
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44 def getName(self):
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45 return NAME
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46
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47 def isGeometryValid(self, geomType):
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48 return geomType == ogr.wkbPoint
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49
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50 def isShapeRelevant(self, name, path):
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51 return "hw-marken" in name.lower()
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52
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53 def createNewFeature(self, featureDef, feat, **args):
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54 newFeat = ogr.Feature(featureDef)
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55 geometry = feat.GetGeometryRef()
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56 geometry.SetCoordinateDimension(2)
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57 newFeat.SetGeometry(geometry)
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58
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59 self.copyFields(feat, newFeat, self.fieldmap)
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60
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61 newFeat.SetField("river_id", self.river_id)
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62
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63 filename = os.path.basename(args['path'])
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64
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65 # Try to extract the year from the filename
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66 match = re.search(r"([_\-])(\d\d\d\d)([_\-])", filename)
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67 if match:
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68 year = match.groups()[1]
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69 year = int(year)
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70 newFeat.SetField("year", year)
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71 else:
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72 logger.warn(u"Could not extract year from filename: %s " % filename)
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73
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74 return newFeat
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75
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