def _get_grass_json(self):
"""
Transform GRASS map to GeoJSON
:return:
"""
if self.grass_map['type'] not in ['point', 'line', 'boundary', 'centroid',
'area', 'face', 'kernel', 'auto']:
self.grass_map['type'] = 'auto'
out = "%s_%s.json" % (self.grass_map['map'],
self.grass_map['layer'])
out = os.path.join(get_tmp_folder(), out)
if os.path.exists(out):
os.remove(out)
out1 = Module('v.out.ogr',
input=self.grass_map['map'],
layer=self.grass_map['layer'],
type=self.grass_map['type'],
output=out,
format='GeoJSON',
stderr_=PIPE,
overwrite=True)
grass.message(out1.outputs["stderr"].value.strip())
self.rm_last_lines(out, 3)
# remove first 5 lines and last 3 to enseure format for serializetion
for i in range(5): # todo optimize
self.remove_line(out, 0)
return out
def _get_grass_json(self):
"""
Transform GRASS map to GeoJSON
:return:
"""
if self.grass_map['type'] not in ['point', 'line', 'boundary', 'centroid',
'area', 'face', 'kernel', 'auto']:
self.grass_map['type'] = 'auto'
out = "%s_%s.json" % (self.grass_map['map'],
self.grass_map['layer'])
out = os.path.join(get_tmp_folder(), out)
if os.path.exists(out):
os.remove(out)
out1 = Module('v.out.ogr',
input=self.grass_map['map'],
layer=self.grass_map['layer'],
type=self.grass_map['type'],
output=out,
format='GeoJSON',
stderr_=PIPE,
overwrite=True)
grass.message(out1.outputs["stderr"].value.strip())
self.rm_last_lines(out, 3)
# remove first 5 lines and last 3 to enseure format for serializetion
for i in range(5): # todo optimize
self.remove_line(out, 0)
return out
def get_JSON(self):
"""
Return geojson for class variable grass_map
:return:
"""
if self.grass_map:
self.json = self._get_grass_json()
else:
filename, file_extension = os.path.splitext(self.json_file)
self.json = os.path.join(get_tmp_folder(), "%s.json" % filename)
return self.json
def get_JSON(self):
"""
Return geojson for class variable grass_map
:return:
"""
if self.grass_map:
self.json = self._get_grass_json()
else:
filename, file_extension = os.path.splitext(self.json_file)
self.json = os.path.join(get_tmp_folder(), "%s.json" %filename)
return self.json
def _get_grass_json(self):
"""
Transform GRASS map to GeoJSON
:return:
"""
if self.grass_map["type"] not in [
"point",
"line",
"boundary",
"centroid",
"area",
"face",
"kernel",
"auto",
]:
self.grass_map["type"] = "auto"
out = "%s_%s.json" % (self.grass_map["map"], self.grass_map["layer"])
out = os.path.join(get_tmp_folder(), out)
if os.path.exists(out):
os.remove(out)
out1 = Module(
"v.out.ogr",
input=self.grass_map["map"],
layer=self.grass_map["layer"],
type=self.grass_map["type"],
output=out,
format="GeoJSON",
stderr_=PIPE,
overwrite=True,
)
grass.message(out1.outputs["stderr"].value.strip())
self.rm_last_lines(out, 3)
# remove first 5 lines and last 3 to enseure format for serializetion
for i in range(5): # todo optimize
self.remove_line(out, 0)
return out