def shaperead(fn, encoding=None):
'''
Returns a layer readed from a shape file.
:param fn: (*string*) The shape file name (.shp).
:param encoding: (*string*) Encoding
:returns: (*MILayer*) The created layer.
'''
if not fn.endswith('.shp'):
fn = fn + '.shp'
if not os.path.exists(fn):
fn = os.path.join(migl.get_map_folder(), fn)
if os.path.exists(fn):
try:
if encoding is None:
encoding = IOUtil.encodingDetectShp(fn)
if encoding == 'ISO8859_1':
encoding = 'UTF-8'
layer = MILayer(MapDataManage.readMapFile_ShapeFile(fn, encoding))
if not layer.legend() is None:
lb = layer.legend().getLegendBreaks()[0]
if lb.getBreakType() == BreakTypes.PolygonBreak:
lb.setDrawFill(False)
return layer
except:
raise
else:
print 'File not exists: ' + fn
raise
def shaperead(fn):
'''
Returns a layer readed from a shape file.
:param fn: (*string*) The shape file name (.shp).
:returns: (*MILayer*) The created layer.
'''
if not fn.endswith('.shp'):
fn = fn + '.shp'
if not os.path.exists(fn):
fn = os.path.join(migl.mapfolder, fn)
if os.path.exists(fn):
try:
layer = MILayer(MapDataManage.loadLayer(fn))
if not layer.legend() is None:
lb = layer.legend().getLegendBreaks()[0]
if lb.getBreakType() == BreakTypes.PolygonBreak:
lb.setDrawFill(False)
return layer
except:
raise
else:
print 'File not exists: ' + fn
raise
def georead(fn):
'''
Returns a layer readed from a supported geo-data file.
:param fn: (*string*) The supported geo-data file name (shape file, wmp, geotiff, image, bil...).
:returns: (*MILayer*) The created layer.
'''
if not os.path.exists(fn):
mapfolder = os.path.join(os.path.dirname(os.path.abspath(__file__)), '../map')
fn = os.path.join(mapfolder, fn)
if os.path.exists(fn):
try:
layer = MILayer(MapDataManage.loadLayer(fn))
if not layer.legend() is None:
lb = layer.legend().getLegendBreaks()[0]
if lb.getBreakType() == BreakTypes.PolygonBreak:
lb.setDrawFill(False)
return layer
except:
raise
else:
print 'File not exists: ' + fn
raise IOError
def maplayer(shapetype='polygon'):
'''
Create a new map layer.
:param shapetype: (*string*) Shape type of the layer. ['point' | 'line' | 'polygon'].
:returns: (*MILayer*) MILayer object.
'''
return MILayer(shapetype=shapetype)
def trajsplayer(self):
if self.dataset.isTrajData():
return MILayer(
self.dataset.getDataInfo().createTrajStartPointLayer())
else:
return None
def trajlayer(self):
if self.dataset.isTrajData():
return MILayer(self.dataset.getDataInfo().createTrajLineLayer())
else:
return None