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

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 This is obsolete and had the side effect of filtering the important point at x = 0.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 5aa05a7a34b7
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rev   line source
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1 # -*- coding: utf-8 -*-
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2 import os
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3
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4 try:
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5 from osgeo import ogr
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6 except ImportError:
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7 import ogr
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8
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9 from importer import Importer
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10 import utils
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11
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12 import logging
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13 logger = logging.getLogger("Jetties")
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14
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15 PATH="Geodaesie/Bauwerke"
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16 NAME="Jetties"
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17
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18 # strings need to be lowercase
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19 # buhnenkopf 0
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20 # buhnenfuß 1
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21 # buhnenwurzel 2
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22 JETTY_KIND = {
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23 "bkl" : 0,
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24 "bkr" : 0,
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25 "bk" : 0,
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26 "bfl" : 1,
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27 "bfr" : 1,
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28 "bf" : 1,
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29 "bwl" : 2,
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30 "bwr" : 2,
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31 "bw" : 2,
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32 }
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33
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34 class Jetties(Importer):
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35 fieldmap = {
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36 "^station$" : "km",
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37 "^km$" : "km",
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38 "^wsv-km$" : "km",
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39 "^z$" : "z",
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40 "^H[oeö]{0,2}he$" : "z",
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41 "^m+NHN$" : "z",
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42 }
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43
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44 def getPath(self, base):
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45 return "%s/%s" % (base, PATH)
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46
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47 def getTablename(self):
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48 return "jetties"
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49
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50 def getName(self):
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51 return "JETTIES"
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52
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53 def isGeometryValid(self, geomType):
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54 return geomType == ogr.wkbPoint or geomType == ogr.wkbPoint25D
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55
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56 def isShapeRelevant(self, name, path):
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57 if not path.endswith("Buhnen.shp"):
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58 return False
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59 shp = ogr.Open(path)
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60 return self.isGeometryValid(shp.GetLayerByName(name).GetGeomType())
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61
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62 def createNewFeature(self, featureDef, feat, **args):
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63 newFeat = ogr.Feature(featureDef)
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64 geometry = feat.GetGeometryRef()
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65 geometry.SetCoordinateDimension(2)
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66
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67 self.copyFields(feat, newFeat, self.fieldmap)
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68
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69 newFeat.SetGeometry(geometry)
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70
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71 newFeat.SetField("river_id", self.river_id)
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72
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73 artname = self.searchField("^type$")
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74 if self.IsFieldSet(feat, artname):
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75 self.handled(artname)
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76 kind_id = JETTY_KIND.get(feat.GetField(artname).lower())
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77 if kind_id == None:
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78 logger.warn("Unknown Type: %s" % \
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79 feat.GetField(artname))
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80 else:
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81 newFeat.SetField("kind_id", kind_id)
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82
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83 return newFeat
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84

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