Mercurial > dive4elements > river
comparison flys-backend/contrib/shpimporter/jetties.py @ 5353:d086ce6c13d3
Add jetties importer
| author | Andre Heinecke <aheinecke@intevation.de> |
|---|---|
| date | Wed, 20 Mar 2013 17:55:53 +0100 |
| parents | |
| children | 776427b5aa76 |
comparison
equal
deleted
inserted
replaced
| 5352:f1009aa7dcd1 | 5353:d086ce6c13d3 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 import os | |
| 3 | |
| 4 try: | |
| 5 from osgeo import ogr | |
| 6 except ImportError: | |
| 7 import ogr | |
| 8 | |
| 9 from importer import Importer | |
| 10 import utils | |
| 11 | |
| 12 import logging | |
| 13 logger = logging.getLogger("Jetties") | |
| 14 | |
| 15 PATH="Geodaesie/Bauwerke" | |
| 16 NAME="Jetties" | |
| 17 | |
| 18 # strings need to be lowercase | |
| 19 JETTY_KIND = { | |
| 20 "buhnenkopf" : 0, | |
| 21 "buhnenfuß" : 1, | |
| 22 "buhnenwurzel" : 2, | |
| 23 } | |
| 24 | |
| 25 class Jetties(Importer): | |
| 26 fieldmap = { | |
| 27 "^station$" : "km", | |
| 28 "^z$" : "z", | |
| 29 } | |
| 30 | |
| 31 def getPath(self, base): | |
| 32 return "%s/%s" % (base, PATH) | |
| 33 | |
| 34 def getTablename(self): | |
| 35 return "jetties" | |
| 36 | |
| 37 def getName(self): | |
| 38 return "JETTIES" | |
| 39 | |
| 40 def isGeometryValid(self, geomType): | |
| 41 return geomType == ogr.wkbPoint or geomType == ogr.wkbPoint25D | |
| 42 | |
| 43 def isShapeRelevant(self, name, path): | |
| 44 if not path.endswith("Buhnen.shp"): | |
| 45 return False | |
| 46 shp = ogr.Open(path) | |
| 47 return self.isGeometryValid(shp.GetLayerByName(name).GetGeomType()) | |
| 48 | |
| 49 def createNewFeature(self, featureDef, feat, **args): | |
| 50 newFeat = ogr.Feature(featureDef) | |
| 51 geometry = feat.GetGeometryRef() | |
| 52 geometry.SetCoordinateDimension(2) | |
| 53 | |
| 54 self.copyFields(feat, newFeat, self.fieldmap) | |
| 55 | |
| 56 newFeat.SetGeometry(geometry) | |
| 57 | |
| 58 artname = self.searchField("^type$") | |
| 59 if self.IsFieldSet(feat, artname): | |
| 60 self.handled(artname) | |
| 61 kind_id = JETTY_KIND.get(feat.GetField(artname).lower()) | |
| 62 if not kind_id: | |
| 63 logger.warn("Unknown Type: %s" % \ | |
| 64 feat.GetField(artname)) | |
| 65 else: | |
| 66 newFeat.SetField("kind_id", kind_id) | |
| 67 | |
| 68 return newFeat | |
| 69 |