Mercurial > dive4elements > river

annotate backend/contrib/shpimporter/floodmarks.py @ 8813:8abe94270f32

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Do not filter cross section points for display. Filtering coordinates outside an extent probably aimed at omitting outliers from the diagram. This is obsolete and had the side effect of filtering the important point at x = 0.
author Tom Gottfried <tom@intevation.de>
date Fri, 28 Apr 2017 19:03:56 +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$" : "km",
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Andre Heinecke <aheinecke@intevation.de>
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23 "^FlussKm$" : "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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