def exportAndBufferB(CLS, cnt):
# Run BUFFER Tool
time_x = datetime.datetime.now().replace(microsecond=0)
bb_file = st_buffer(osmLink,
lineTbl,
"bf_basic_buffer",
"geometry",
os.path.join(
folder,
'bb_rule5_{}.shp'.format(str(int(CLS)))),
whrClause="basic_buffer={}".format(str(int(CLS))),
outTblIsFile=True,
dissolve=None,
cols_select="basic_buffer")
time_y = datetime.datetime.now().replace(microsecond=0)
# To raster
rstCls = shp_to_raster(bb_file,
None,
cells,
0,
os.path.join(folder,
'rst_bbfr_{}.tif'.format(CLS)),
epsg=srscode,
rst_template=rtemplate,
api='gdal')
time_z = datetime.datetime.now().replace(microsecond=0)
clsRst[CLS] = rstCls
timeGasto[cnt + 1] = ('buffer_{}'.format(str(CLS)), time_y - time_x)
timeGasto[cnt + 2] = ('torst_{}'.format(str(CLS)), time_z - time_y)
def pg_num_roads(osmLink, nom, lnhTbl, polyTbl, folder, cellsize, srs, rstT):
"""
Select, Calculate Buffer distance using POSTGIS, make buffer of roads
and convert roads to raster
"""
import datetime
import os
from osgeo import gdal
from gasp.sql.mng.tbl import row_num
from gasp.sql.anls.prox import st_buffer
from gasp.to.rst import shp_to_raster
# There are roads?
time_a = datetime.datetime.now().replace(microsecond=0)
NR = row_num(osmLink, lnhTbl, where="roads IS NOT NULL", api='psql')
time_b = datetime.datetime.now().replace(microsecond=0)
if not NR: return None, {0: ('count_rows_roads', time_b - time_a)}
# There are buildings?
NB = row_num(osmLink, polyTbl, where="building IS NOT NULL", api='psql')
time_c = datetime.datetime.now().replace(microsecond=0)
if NB:
from gasp.sql.anls.prox import st_near
from gasp.sql.mng.qw import exec_write_q
nroads = st_near(
osmLink,
("(SELECT gid, roads, bf_roads, geometry FROM {} "
"WHERE roads IS NOT NULL)").format(lnhTbl),
"gid",
"geometry",
("(SELECT * FROM {} WHERE building IS NOT NULL)").format(polyTbl),
"geometry",
"near_roads",
untilDist="12",
near_col="dist_near")
time_d = datetime.datetime.now().replace(microsecond=0)
exec_write_q(osmLink, [(
"UPDATE near_roads SET "
"bf_roads = CAST(round(CAST(dist_near AS numeric), 0) AS integer) "
"WHERE dist_near >= 1 AND dist_near <= 12"
), "CREATE INDEX near_dist_idx ON near_roads USING gist (geometry)"])
time_e = datetime.datetime.now().replace(microsecond=0)
else:
nroads = ("(SELECT roads, bf_roads, geometry FROM {} "
"WHERE roads IS NOT NULL) AS foo").format(lnhTbl)
time_d = None
time_e = None
# Execute Buffer
bufferShp = st_buffer(osmLink,
nroads,
"bf_roads",
"geometry",
os.path.join(folder, "bf_roads.shp"),
cols_select="roads",
outTblIsFile=True,
dissolve=None)
time_f = datetime.datetime.now().replace(microsecond=0)
# Convert to Raster
roadsRst = shp_to_raster(bufferShp,
None,
cellsize,
0,
os.path.join(folder, "rst_roads.tif"),
epsg=srs,
rst_template=rstT,
api='gdal')
time_g = datetime.datetime.now().replace(microsecond=0)
LULC_CLS = '1221' if nom != "GLOBE_LAND_30" else '801'
return {
int(LULC_CLS): roadsRst
}, {
0: ('count_rows_roads', time_b - time_a),
1: ('count_rows_build', time_c - time_b),
2: None if not time_d else ('near_analysis', time_d - time_c),
3: None if not time_e else ('update_buffer_tbl', time_e - time_d),
4: ('buffer_roads', time_f - time_e if time_e else time_f - time_c),
5: ('roads_to_raster', time_g - time_f)
}
def roads_sqdb(osmcon, lnhTbl, plTbl, apidb='SQLITE', asRst=None):
"""
Raods procedings using SQLITE
"""
import datetime
from gasp.sql.mng.tbl import row_num as cnt_rows
if apidb == 'SQLITE':
from gasp.sql.anls.prox import splite_buffer as st_buffer
from gasp.to.shp.grs import sqlite_to_shp as db_to_shp
else:
from gasp.sql.anls.prox import st_buffer
from gasp.to.shp.grs import psql_to_grs as db_to_shp
time_a = datetime.datetime.now().replace(microsecond=0)
NR = cnt_rows(osmcon,
lnhTbl,
where="roads IS NOT NULL",
api='psql' if apidb == 'POSTGIS' else 'sqlite')
time_b = datetime.datetime.now().replace(microsecond=0)
if not NR: return None, {0: ('count_rows_roads', time_b - time_a)}
NB = cnt_rows(osmcon,
plTbl,
where="building IS NOT NULL",
api='psql' if apidb == 'POSTGIS' else 'sqlite')
time_c = datetime.datetime.now().replace(microsecond=0)
if NB:
from gasp.sql.mng.qw import exec_write_q
ROADS_Q = "(SELECT{} roads, bf_roads, geometry FROM {} WHERE roads IS NOT NULL)".format(
"" if apidb == 'SQLITE' else " gid,", lnhTbl)
if apidb == 'SQLITE':
from gasp.sql.anls.prox import splite_near
nroads = splite_near(osmcon,
ROADS_Q,
plTbl,
"geometry",
"geometry",
"near_roads",
whrNear="building IS NOT NULL")
time_d = datetime.datetime.now().replace(microsecond=0)
# Update buffer distance field
exec_write_q(osmcon, [
("UPDATE near_roads SET bf_roads = CAST(round(dist_near, 0) AS integer) "
"WHERE dist_near >= 1 AND dist_near <= 12"),
("UPDATE near_roads SET bf_roads = 1 WHERE dist_near >= 0 AND "
"dist_near < 1")
],
api='sqlite')
time_e = datetime.datetime.now().replace(microsecond=0)
else:
from gasp.sql.anls.prox import st_near
nroads = st_near(
osmcon,
ROADS_Q,
'gid',
'geometry',
"(SELECT * FROM {} WHERE building IS NOT NULL)".format(plTbl),
"geometry",
"near_roads",
untilDist="12",
near_col="dist_near")
time_d = datetime.datetime.now().replace(microsecond=0)
exec_write_q(osmcon, [
("UPDATE near_roads SET "
"bf_roads = CAST(round(CAST(dist_near AS numeric), 0) AS integer) "
"WHERE dist_near >= 1 AND dist_near <= 12"),
("UPDATE near_roads SET bf_roads = 1 WHERE dist_near >= 0 AND "
"dist_near < 1"),
("CREATE INDEX near_dist_idx ON near_roads USING gist (geometry)"
)
],
api='psql')
time_e = datetime.datetime.now().replace(microsecond=0)
else:
nroads = ("(SELECT roads, bf_roads, geometry "
"FROM {} WHERE roads IS NOT NULL) AS foo").format(lnhTbl)
time_d = None
time_e = None
# Execute Buffer
bfTbl = st_buffer(osmcon,
nroads,
"bf_roads",
"geometry",
"bf_roads",
cols_select="roads",
outTblIsFile=None,
dissolve="ALL")
time_f = datetime.datetime.now().replace(microsecond=0)
# Send data to GRASS GIS
roadsGrs = db_to_shp(osmcon,
bfTbl,
"froads",
notTable=None,
filterByReg=True)
time_g = datetime.datetime.now().replace(microsecond=0)
if asRst:
from gasp.to.rst import shp_to_raster
roadsGrs = shp_to_raster(roadsGrs,
int(asRst),
None,
None,
"rst_roads",
api="grass")
time_h = datetime.datetime.now().replace(microsecond=0)
else:
time_h = None
return roadsGrs, {
0: ('count_rows_roads', time_b - time_a),
1: ('count_rows_build', time_c - time_b),
2: None if not time_d else ('near_analysis', time_d - time_c),
3: None if not time_e else ('update_buffer_tbl', time_e - time_d),
4: ('buffer_roads', time_f - time_e if time_e else time_f - time_c),
5: ('import_roads', time_g - time_f),
6: None if not time_h else ('roads_to_raster', time_h - time_g)
}
def basic_buffer(osmLink, lineTable, dataFolder, apidb='SQLITE'):
"""
Data from Lines table to Polygons using a basic buffering stratagie
"""
import datetime
from gasp.fm.sql import query_to_df
if apidb == 'POSTGIS':
from gasp.sql.anls.prox import st_buffer
else:
from gasp.sql.anls.prox import splite_buffer as st_buffer
from gasp.to.rst import shp_to_raster
from gasp.to.shp.grs import shp_to_grs
time_a = datetime.datetime.now().replace(microsecond=0)
lulcCls = query_to_df(
osmLink,
("SELECT basic_buffer FROM {} WHERE basic_buffer IS NOT NULL "
"GROUP BY basic_buffer").format(lineTable),
db_api='psql'
if apidb == 'POSTGIS' else 'sqlite').basic_buffer.tolist()
time_b = datetime.datetime.now().replace(microsecond=0)
timeGasto = {0: ('check_cls', time_b - time_a)}
clsRst = {}
tk = 1
for cls in lulcCls:
# Run BUFFER Tool
time_x = datetime.datetime.now().replace(microsecond=0)
bb_file = st_buffer(osmLink,
lineTable,
"bf_basic_buffer",
"geometry",
os.path.join(
dataFolder,
'bb_rule5_{}.shp'.format(str(int(cls)))),
whrClause="basic_buffer={}".format(str(int(cls))),
outTblIsFile=True,
dissolve="ALL",
cols_select="basic_buffer")
time_y = datetime.datetime.now().replace(microsecond=0)
# Data TO GRASS
grsVect = shp_to_grs(bb_file,
"bb_{}".format(int(cls)),
asCMD=True,
filterByReg=True)
time_z = datetime.datetime.now().replace(microsecond=0)
# Data to Raster
rstVect = shp_to_raster(grsVect,
int(cls),
None,
None,
"rbb_{}".format(int(cls)),
api="grass")
time_w = datetime.datetime.now().replace(microsecond=0)
clsRst[int(cls)] = rstVect
timeGasto[tk] = ('do_buffer_{}'.format(cls), time_y - time_x)
timeGasto[tk + 1] = ('import_{}'.format(cls), time_z - time_y)
timeGasto[tk + 2] = ('torst_{}'.format(cls), time_w - time_z)
tk += 3
return clsRst, timeGasto