def make_contour_bounds_shapefile(self):
import databundles.geo as dg
from numpy import ma
import yaml
shape_file_dir = self.filesystem.path('extracts','contours')
shape_file = os.path.join(shape_file_dir, 'contours.shp') # One of two.
if os.path.exists(shape_file):
return shape_file_dir
partition = self.partitions.all[0]# There is only one
hdf = partition.hdf5file
hdf.open()
a1,_ = hdf.get_geo('property')
a2,aa = hdf.get_geo('violent')
a = dg.std_norm(ma.masked_equal(a1[...] + a2[...],0)) # ... Converts to a Numpy array.
# Creates the shapefile in the extracts/contour directory
envelopes = dg.bound_clusters_in_raster( a, aa, shape_file_dir, 0.1,0.7, use_bb=True, use_distance=50)
# Cache the envelopes for later.
env_file = self.filesystem.path('build','envelopes.yaml')
with open(env_file,'w') as f:
f.write(yaml.dump(envelopes, indent=4, default_flow_style=False))
return shape_file_dir
def build_aa_map(self):
'''
'''
import databundles.library as dl
import databundles.geo as dg
import random
from numpy import ma
rs = 3
# make a helper to store files in the extracts directory
ed = lambda f: self.filesystem.path('extracts','subs',f+'.tiff')
l = dl.get_library()
aa = dg.get_analysis_area(l, geoid=self.config.build.aa_geoid)
r = l.find(dl.QueryCommand().identity(id='a2z2HM').partition(table='incidents',space=aa.geoid)).pop()
source_partition = l.get(r.partition).partition
k = dg.GaussianKernel(33,11)
sub_aas = [self.get_sub_aas()[1]]
top_a = aa.new_array()
for i, sub_aa in enumerate(sub_aas):
where = sub_aa.is_in_ll_query()
sub_a = sub_aa.new_array()
trans = sub_aa.get_translator()
q = "select * from incidents WHERE {}".format(where)
for row in source_partition.query(q):
p = trans(row['lon'],row['lat'])
k.apply_add(sub_a, p)
print row
sub_aa.write_geotiff(ed(str(i)), dg.std_norm(ma.masked_equal(sub_a,0)))
sub_aa.write_geotiff(ed(str(i)), sub_a)
return True