Posts – Page 2 – EPANET and SWMM plugins repository

Transient analysis

Transient analysis in water distribution networks

Pressure driven demand

Run a pressure driven analysis

SCADA connection plugin

Import data from SCADA systems

Network anonymizer

Anonymize any network by changing coordinates and elements names

Import elevations

Script to import nodes elevations from Google Maps.

# Script to extract elevation data from Google Maps using Google APIs
# By Elad Salomons

# Get your Google API key here: https://console.developers.google.com/apis/api/maps_backend/overview
API_KEY='GET YOUR OWN API KEY FROM GOOGLE'

number_of_coords_per_api_call = 500

from urllib2 import Request, urlopen
import xml.etree.ElementTree as ET

txt=''
n=0
i=0
junctions_list = session.project.junctions.value[:]
for j in junctions_list:
	n=n+1
	lat=str(j.y)
	lon=str(j.x)
	txt=txt+lat + ',' + lon + '|'
	j.elevation=0
	if (n % number_of_coords_per_api_call==0) or (n==len(junctions_list)):
		txt = txt[:-1]
		request = Request('https://maps.googleapis.com/maps/api/elevation/xml?locations=' + txt + '&amp;key=' + API_KEY)
		response = urlopen(request).read()
		tree = ET.fromstring(response)
		k=0
		for ee in tree.iter('elevation'):
			junctions_list[i+k].elevation = ee.text
			k=k+1
		i=i+number_of_coords_per_api_call
		txt=''