KJ135
/
ISCE_INSAR
mirror of http://172.16.0.12:5000/WBJY/ISCE_INSAR.git
4
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

using geopandas and shapely package to calculate whether there are intersections between bbox and sentinel SAFE file. (#216) 

* stackSentinel.py:using geopandas to calculate intersection between bbox and SAFE file coverage region

* stackSentinel.py:using geopandas and shapely package to calculate whether there are intersections between bbox and sentinel SAFE file. And remove import geopandas and shapely part into generate_geopolygon function

* stackSentinel.py: using shapely package to check whether bbox intersect with SAFE file coverage

* stackSentinel.py: using shapely package to check whether bbox intersect with SAFE file coverage

* stackSentinel.py:using shapely package to find whether bbox intersects with SAFE file

* stackSentinel.py:remove matplotlib DEBUG message#L14-L18
LT1AB
ranneylxr 2021-01-07 05:19:55 +08:00 committed by GitHub
parent f44a0edf1d
commit 48559c6e3e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 27 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
contrib/stack/topsStack/stackSentinel.py
View File

@ -11,12 +11,6 @@ import datetime
import time
import numpy as np
# suppress matplotlib DEBUG message
from matplotlib.path import Path as Path
import logging
mpl_logger = logging.getLogger('matplotlib')
mpl_logger.setLevel(logging.WARNING)
import isce
import isceobj
from isceobj.Sensor.TOPS.Sentinel1 import Sentinel1
@ -196,6 +190,17 @@ def cmdLineParse(iargs = None):
return inps
def generate_geopolygon(bbox):
"""generate shapely Polygon"""
from shapely.geometry import Point, Polygon
# convert pnts to shapely polygon format
# the order of pnts is conter-clockwise, starting from the lower ldft corner
# the order for Point is lon,lat
points = [Point(bbox[i][0], bbox[i][1]) for i in range(4)]
return Polygon([(p.coords.xy[0][0], p.coords.xy[1][0]) for p in points])
####################################
def get_dates(inps):
# Given the SLC directory This function extracts the acquisition dates
@ -251,7 +256,8 @@ def get_dates(inps):
f = open('SAFE_files.txt','w')
safe_count=0
safe_dict={}
bbox_poly = [[bbox[0],bbox[2]],[bbox[0],bbox[3]],[bbox[1],bbox[3]],[bbox[1],bbox[2]]]
bbox_poly = np.array([[bbox[2],bbox[0]],[bbox[3],bbox[0]],[bbox[3],bbox[1]],[bbox[2],bbox[1]]])
for safe in SAFE_files:
safeObj=sentinelSLC(safe)
safeObj.get_dates()
@ -268,45 +274,22 @@ def get_dates(inps):
reject_SAFE=True
pnts = safeObj.getkmlQUAD(safe)
# looping over the corners, keep the SAF is one of the corners is within the BBOX
lats = []
lons = []
# process pnts to use generate_geopolygon function
pnts_bbox = np.empty((4,2))
count = 0
for pnt in pnts:
lon = float(pnt.split(',')[0])
lat = float(pnt.split(',')[1])
# keep track of all the corners to see of the product is larger than the bbox
lats.append(lat)
lons.append(lon)
# bbox = SNWE
# polygon = bbox[0] bbox[2] SW
# bbox[0] bbox[3] SE
# bbox[1] bbox[3] NE
# bbox[1] bbox[2] NW
poly = Path(bbox_poly)
point = (lat,lon)
in_bbox = poly.contains_point(point)
# product corner falls within BBOX (SNWE)
if in_bbox:
reject_SAFE=False
# If the product is till being rejected, check if the BBOX corners fall within the frame
if reject_SAFE:
for point in bbox_poly:
frame = [[a,b] for a,b in zip(lats,lons)]
poly = Path(frame)
in_frame = poly.contains_point(point)
if in_frame:
reject_SAFE=False
pnts_bbox[count, 0] = float(pnt.split(',')[0]) # longitude
pnts_bbox[count, 1] = float(pnt.split(',')[1]) # latitude
count += 1
pnts_polygon = generate_geopolygon(pnts_bbox)
bbox_polygon = generate_geopolygon(bbox_poly)
# judge whether these two polygon intersect with each other
overlap_flag = pnts_polygon.intersects(bbox_polygon)
if overlap_flag:
reject_SAFE = False
else:
reject_SAFE = True
if not reject_SAFE:
if safeObj.date not in safe_dict.keys() and safeObj.date not in excludeList: