Skip to main content

Python interface to Piccolo and Picalor simulation kernel

Project description

Piccolo5/Piccolo6/Picalor6 and Ganessa_SIM python API calling interface

What is it?
A python package enabling users to call a set of Picwin32.dll or Ganessa_SIM.dll API functions and subroutines within python scripts. Initially provided for python 2.7 32 bits only. 1.9.x versions served as python 3.5 / 3.6 pre-release.
Starting with version 2.0.0, the wheel package is provided for 32 bits version for python 2.7 / 3.5 / 3.6 / 3.7 (Piccolo kernel is a 32 bits application) and 64 bits version for python 3.6 / 3.7 (Ganessa_SIM is available as 32 and 64 bits).

:Windows only:

pip install ganessa

Requirements (32 bits)
#) python 2.7, 3.5, 3.6, 3.7
#) python requirements: numpy 1.11 or above (python 2.7) / numpy 1.13.1 or above (python 3.5 - 3.6) / numpy 1.15.0 (python 3.7)
#) Piccolo or Picalor kernel library (picwin32.dll), starting from version 5 (141203) for python 2.7 / version 6 for python 3.x
#) valid Piccolo or Picalor or Ganessa_SIM license

Requirements (64 bits)
#) python 3.6 or 3.7
#) numpy 1.13.1 or above (python 3.6) / numpy 1.15.0 (python 3.7)
#) Ganessa_SIM_x64.dll (64 bit dll)
#) valid Ganessa_SIM license

This tool requires Picwin32.dll to be in the PATH or in one of the following folders:
[ C: or D: ] / ['Program Files/Adelior/Piccolo5_' or
'Program Files (x86)/Gfi Progiciels/Piccolo6_' or
'Program Files (x86)/Gfi Progiciels/Picalor6_']
'Program Files (x86)/Safege/Ganessa_']
+ ['fr' or 'uk' or 'esp' or 'eng'] + ['' or '_ck']

Or one of Ganessa_SIM.dll or Ganessa_TH.dll or Ganessa_SIM_x64.dll in:
[ C: or D: ] / ['Program Files (x86)/Safege/Ganessa_']
+ ['fr' or 'uk' or 'esp' or 'eng']

PICCOLO_DIR or GANESSA_DIR environment variables can be used for custom installations.


The package provides:
#) 'sim' package:
- a few basic functions for reading or loading a model, running hydraulic and WQ simulations
- 'getter' functions for individual objects and attributes, time series vectors, attribute vector of all object
- iterators over links, nodes, tanks, demands, and tables, or over Piccolo selections
#) 'th' package: same functions for Picalor except running extended period simulations and time series getters
#) 'util' package: miscellaneous functions
#) 'OpenFileMMI' provides classes for opening dialog frame for a .dat/.bin model file, and output (result) file. It should be imported after 'sim' or 'th'.
#) 'plot' provides easy multiple simulation vs reference graphs plot settings - requires matplotlib
#) 'sort' provides a heapsort based on heapq
#) 'midfile' provides minimal mif/mid functions similar to shp/dbf shapefile handler (pyshp package)
#) 'epanet' provides epanet2 python API for win32 (thanks to Assela Pathirana - mailto: similar to EpanetTools-0.4.0; with epanet.getlinknodes corrected (from 0.9.2)
#) 'parallel' provides a simple parallel simulations handling framework based on multiprocessing.

Model objects and parameters can be modified using Piccolo command language (see cmd, cmdfile and execute)

Documentation is provided as pyGanessa.html in the intallation folder.

History of the document
Created 2013-07-04
Revised 2015-05-03: since 2014-12-04 Picwin32.dll is compatible with this API
Revised 2016-07-07: provided as .rst
Revised 2017-08-08: install using pip; Piccolo/Ganessa dll folder search order.
Revised 2017-09-12: split sim into core, core_sim, core_th
Revised 2017-11-13: added sort, midfile, epanet modules
Revised 2017-11-30: added parallel
Revised 2018-03-29: minor changes / extension to python 3.5-3.6
Revised 2018-06-08: OpenFileMMI and epanet details, added example.
Revised 2018-08-16: 64 bits compatibility (Ganessa_SIM only)
Revised 2018-08-27: numpy requirements

# -*- coding: utf-8 -*-
from __future__ import (print_function, unicode_literals)
import os
import ganessa.sim as pic
import matplotlib as mpl
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt

# This code sample runs under python 2.7, 3.5, 3.6

if __name__ == '__main__':
wkfold = os.path.dirname(__file__)
# will create work files here
# loads the model - change the name here...
# select small pipe (diameter below 155)
# using iterator and D getter, by id
pipefilter = lambda d: (d > 0 and d < 155)
pipes = [p for p in pic.Links() if pipefilter(pic.linkattr(p, 'D')) ]
# using iterator and D getter, by index (less concise but slightly faster)
pipes = [pic.getid(pic.LINK, k) for k in range(1, pic.nbobjects(pic.LINK))
if pipefilter(pic.nlinkattr(k, 'D')) ]
# Most Piccoloic, using (french) command language selection
pipes = [p for p, _t in pic.Selected('TUYAU (D < 155) FIN')]
# minimal setter functions for links, nodes, tanks attributes
id = pipes[len(pipes)//2]
diam = pic.linkattr(id, 'D')
pic.setlinkattr(id, 'D', diam*2)
# language-independant commands
KWEND = pic.getkeyword(pic.DICT.END)
pic.gencmdw(pic.M.MOD, pic.M.MOD.MULT, pic.M.NONE, 'D 2')
pic.gencmd(pic.M.LNK, pic.M.LNK.NONE, pic.M.NONE, id + ' ' + KWEND, 1)
# Use command language to set / modify / delete objects
pic.execute('MODIF', 'DETR ARC {} FIN'.format(id))
pic.execute('MODIF', 'FUSION NOEU (AA = 1) FIN',
# or change parameters
pic.execute('SIMUL', 'CRITX 0.05', 'MXITER 75')
# Unlike epanet, first run simulation then browse/ query results
pic.full_solveH(silent= True, retry= True)
print('Simulation done.')
fig = plt.figure(figsize=(16-1, 9-1))
# plot 3D elevation and hydraulic head
ax = fig.gca(projection='3d')
for a in pic.Links():
x, y, z, v, nb = pic.linkXYZV(a, 'CH')
if nb > 0:
ax.plot(x, y, z, 'r-')
ax.plot(x, y, v, 'b-')
plt.title(u'Plan de charge a t= 08:30')
# print min/max pressure over the EPS
attr = 'P'
for id, vmin, vmax, vmoy in pic.getMinMax(pic.NODE, attr):
print(id, attr+'min:', vmin, attr+'max:', vmax)
# get current volume simulation (internal variable steps) and measurement TS
for id in pic.Tanks():
t1, v1, nb1 = pic.tsval(pic.TANK, id, 'VC')
t2, v2, nb2 = pic.msval(pic.TANK, id, 'VC')
# get current volume simulation results at measurement sampling
for id in pic.Tanks():
t3, v3, nb3 = pic.tsvalbymts(pic.TANK, id, 'VC')
# export as Epanet .inp
# use reset() for switching model, close() to terminate

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
ganessa-2.0.2-cp27-cp27m-win32.whl (2.9 MB) Copy SHA256 hash SHA256 Wheel cp27
ganessa-2.0.2-cp35-cp35m-win32.whl (2.6 MB) Copy SHA256 hash SHA256 Wheel cp35
ganessa-2.0.2-cp36-cp36m-win32.whl (2.6 MB) Copy SHA256 hash SHA256 Wheel cp36
ganessa-2.0.2-cp36-cp36m-win_amd64.whl (776.5 kB) Copy SHA256 hash SHA256 Wheel cp36
ganessa-2.0.2-cp37-cp37m-win32.whl (2.6 MB) Copy SHA256 hash SHA256 Wheel cp37
ganessa-2.0.2-cp37-cp37m-win_amd64.whl (779.1 kB) Copy SHA256 hash SHA256 Wheel cp37

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page