Mercurial > dive4elements > river

annotate backend/contrib/shpimporter/floodmarks.py @ 8066:fe5ef780f8b1

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Sediment load: fetch sediment density for transforming t/a to m^3/a.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 30 Jul 2014 19:26:20 +0200
parents 90ba3ae2ced1
children
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 class Floodmark(Importer):
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19 fieldmap = {
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20 "^station$" : "km",
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21 "^km$" : "km",
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22 "^wsv-km$" : "km",
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23 "^FlussKm$" : "km",
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24 "^z$" : "z",
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25 "^z\d*" : "z", # z02, z1890, usw.
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26 "^m+NHN$" : "z",
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27 "^Ort$" : "location",
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28 "^Pegel$" : "location",
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29 }
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30
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31 def getPath(self, base):
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32 return "%s/%s" % (base, PATH)
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33
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34 def getTablename(self):
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35 return TABLE_NAME
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36
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37 def getName(self):
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38 return NAME
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39
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40 def isGeometryValid(self, geomType):
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41 return geomType == ogr.wkbPoint
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42
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43 def isShapeRelevant(self, name, path):
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44 return "hw-marken" in name.lower()
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45
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46 def createNewFeature(self, featureDef, feat, **args):
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47 newFeat = ogr.Feature(featureDef)
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48 geometry = feat.GetGeometryRef()
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49 geometry.SetCoordinateDimension(2)
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50 newFeat.SetGeometry(geometry)
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51
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52 self.copyFields(feat, newFeat, self.fieldmap)
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53
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54 newFeat.SetField("river_id", self.river_id)
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55
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56 filename = os.path.basename(args['path'])
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57
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58 # Try to extract the year from the filename
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59 match = re.search(r"([_\-])(\d\d\d\d)([_\-])", filename)
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60 if match:
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61 year = match.groups()[1]
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62 year = int(year)
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63 newFeat.SetField("year", year)
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64 else:
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65 logger.warn(u"Could not extract year from filename: %s " % filename)
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66
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67 return newFeat
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68
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