Mercurial > dive4elements > river

annotate backend/contrib/shpimporter/floodmarks.py @ 8472:3f505fba522f

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(issue1772) Use 0.001km tolarance instead of 0.1 to find matching km. There is no sense to use a define here. I will not write static final double NULLPOINTNULLNULLONE=0.001 if i just want to use that value and not any other value which may make sense in some other place. Using hardcoded values can have its merits and makes the code easier to read.
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 18 Nov 2014 15:24:40 +0100
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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Andre Heinecke <aheinecke@intevation.de>
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22 "^wsv-km$" : "km",
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Andre Heinecke <aheinecke@intevation.de>
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23 "^FlussKm$" : "km",
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Andre Heinecke <aheinecke@intevation.de>
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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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