def perim_m(self):
'''
Returns the perimeter of the polygon field in metres, transformed to a
projection of GDA94/MGA zone 49 through 56.
'''
if self.the_geom:
return transform_geom(self.the_geom).boundary.length
else:
return None
def perim_m(self):
'''
Returns the perimeter of the polygon field in metres, transformed to a
projection of GDA94/MGA zone 49 through 56.
'''
if self.the_geom:
return transform_geom(self.the_geom).boundary.length
else:
return None
def area_ha(self):
"""
Returns the area of the polygon field in hectares, transformed to a
projection of GDA94/MGA zone 49 through 56.
"""
if self.the_geom:
return transform_geom(self.the_geom).area / 10000
else:
return None
def area_ha(self):
"""
Returns the area of the polygon field in hectares, transformed to a
projection of GDA94/MGA zone 49 through 56.
"""
if self.the_geom:
return transform_geom(self.the_geom).area / 10000
else:
return None