Added data to the neo4j using the below script. The data gets added successfully but there is problem with the querying. The query works only if i give the exact lat and long of a node in the database. Any other coords results in an empty set.
import csv
import requests
import json
headers = {'content-type': 'application/json'}
# Create geom index
url = "http://localhost:7474/db/data/index/node/"
payload= {
"name" : "geom",
"config" : {
"provider" : "spatial",
"geometry_type" : "point",
"lat" : "lat",
"lon" : "lon"
}
}
r = requests.post(url, data=json.dumps(payload), headers=headers, auth=('neo4j', 'thanks123'))
with open('/home/haripriya/workspace/ContentMatching/src/main/resources/coords.csv', 'rb') as f: # read data file
reader = csv.reader(f, delimiter='\t')
for row in reader:
# create airport node
url = "http://localhost:7474/db/data/node"
payload = {'name': row[0], 'street': row[1], 'city': row[2], 'state': row[3], 'pin': row[4], 'lon': float(row[5]), 'lat': float(row[6])}
r = requests.post(url, data=json.dumps(payload), headers=headers, auth=('neo4j', 'thanks123'))
node = r.json()['self']
#add node to geom index
url = "http://localhost:7474/db/data/index/node/geom"
payload = {'value': 'dummy', 'key': 'dummy', 'uri': node}
r = requests.post(url, data=json.dumps(payload), headers=headers, auth=('neo4j', 'thanks123'))
#add node to Spatial index
url = "http://localhost:7474/db/data/ext/SpatialPlugin/graphdb/addNodeToLayer"
payload = {'layer': 'geom', 'node': node}
r = requests.post(url, data=json.dumps(payload), headers=headers, auth=('neo4j', 'thanks123'))
example nodes: A 29.6490287781 -98.4621124268 B 30.2107849121 -95.7507781982
START n=node:geom('withinDistance:[29.6490287781, -98.4621124268, 50.0]') RETURN n returns node A but
START n=node:geom('withinDistance:[29.6490287780, -98.4621124260, 50.0]') RETURN n returns empty set
