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94 lines
2.9 KiB
Python
94 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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__init__.py
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---------------------
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Date : January 2007
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Copyright : (C) 2007 by Martin Dobias
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Email : wonder dot sk at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Martin Dobias'
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__date__ = 'January 2007'
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__copyright__ = '(C) 2007, Martin Dobias'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from builtins import zip
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import os
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def setupenv():
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"""
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Set the environment for Windows based on the .vars files from the
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OSGeo4W package format.
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"""
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# If the prefix path is already set the we don't do any more path setup.
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if os.getenv('QGIS_PREFIX_PATH'):
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return
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# Setup the paths based on the .vars file.
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from pathlib import PurePath
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path_split = PurePath(os.path.dirname(os.path.realpath(__file__))).parts
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try:
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appname = os.environ['QGIS_ENVNAME']
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except KeyError:
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appname = path_split[-3]
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envfile = list(path_split[:-4])
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envfile.append("bin")
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envfile.append("{0}-bin.env".format(appname))
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envfile = os.path.join(*envfile)
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if not os.path.exists(envfile):
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return
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with open(envfile) as f:
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for line in f:
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linedata = line.split("=")
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name = linedata[0]
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data = linedata[1]
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os.environ[name] = data
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if os.name == 'nt':
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# On windows we need to setup the paths before we can import
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# any of the QGIS modules or else it will error.
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setupenv()
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from qgis.PyQt import QtCore
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from qgis.core import QgsFeature, QgsGeometry
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def mapping_feature(feature):
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geom = feature.geometry()
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properties = {}
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fields = [field.name() for field in feature.fields()]
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properties = dict(list(zip(fields, feature.attributes())))
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return {'type': 'Feature',
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'properties': properties,
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'geometry': geom.__geo_interface__}
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def mapping_geometry(geometry):
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geo = geometry.exportToGeoJSON()
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# We have to use eval because exportToGeoJSON() gives us
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# back a string that looks like a dictionary.
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return eval(geo)
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QgsFeature.__geo_interface__ = property(mapping_feature)
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QgsGeometry.__geo_interface__ = property(mapping_geometry)
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