3.4 EPANET Control Rules using the Toolkit
Contents
3.4 EPANET Control Rules using the Toolkit#
Purpose#
Installation#
Examples#
The script below manipulates the Net1.inp example.
## simple rules
import epamodule as em # import the package
#Open the EPANET toolkit & hydraulics solver
em.ENopen("./ex1-cr/Net1.inp", "./ex1-cr/Net1-tk.rpt")
# build report command strings Keyword Action see user manual
command0 = "Status Yes"
command1 = "Summary Yes"
command2 = "Nodes ALL"
command3 = "Links ALL"
#em.ENsetstatusreport(2) # full status report
em.ENsetreport(command0)
em.ENsetreport(command1)
em.ENsetreport(command2)
em.ENsetreport(command3)
em.ENsaveinpfile("./ex1-cr/Net1-tk.inp") #overwrite the input file
nodej = em.ENgetnodeindex("2")
linkp = em.ENgetlinkindex("9")
print("Control Sensor Node: ",nodej,"Controlled Link: ",linkp)
outstr = em.ENgetcontrol(1)
print("Control Type: ",outstr[0]," Controlled Link: ",\
outstr[1]," Control Action: ",outstr[2]," Control Sensor Node: ",\
outstr[3],"Control Value: ",outstr[4])
outstr = em.ENgetcontrol(2)
print("Control Type: ",outstr[0]," Controlled Link: ",\
outstr[1]," Control Action: ",outstr[2]," Control Sensor Node: ",\
outstr[3],"Control Value: ",outstr[4])
#print(outstr)
em.ENclose()
# now run from the new file
# now run from the new file
em.ENopen("./ex1-cr/Net1-tk.inp", "./ex1-cr/Net1-tk.rpt")
em.ENopenH()
em.ENsolveH()
em.ENsaveH() # need to save to a binary file before write
em.ENcloseH()
em.ENopenQ()
em.ENsolveQ()
em.ENreport() # now write report
# Close hydraulics solver & toolkit */
em.ENclose()
! cat ./ex1-cr/Net1-tk.rpt
---------------------------------------------------------------------------
OSError Traceback (most recent call last)
/tmp/ipykernel_219767/2499849801.py in <module>
1 ## simple rules
----> 2 import epamodule as em # import the package
3 #Open the EPANET toolkit & hydraulics solver
4 em.ENopen("./ex1-cr/Net1.inp", "./ex1-cr/Net1-tk.rpt")
5 # build report command strings Keyword Action see user manual
~/ects-epanet/ects-epanet-notes/lessons/lesson03/epamodule.py in <module>
10 _plat= platform.system()
11 if _plat=='Linux':
---> 12 _lib = ctypes.CDLL("./libepanet2.so") # For My Raspberry Pi
13 ## _lib = ctypes.CDLL("./en2tools.so.1.5.0")
14 ## _lib = ctypes.CDLL("./epanet2toolkit.so")
/usr/lib/python3.8/ctypes/__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error, winmode)
371
372 if handle is None:
--> 373 self._handle = _dlopen(self._name, mode)
374 else:
375 self._handle = handle
OSError: ./libepanet2.so: cannot open shared object file: No such file or directory