Anuga-user Digest, Vol 41, Issue 1
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Today's Topics:
1. queries related to simulation and sww file (rajesh tailor)
2. Catchment Finder (Peter Wells)
3. Hello (parul mogra)
4. Anuga-validation (Aurelien Hazart)
5. mesh file (C.Preciado)
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Message: 1
Date: Thu, 20 Oct 2011 16:49:52 +0530
From: rajesh tailor <tailor....@gmail.com>
Subject: [Anuga-user] queries related to simulation and sww file
To: anuga...@lists.sourceforge.net
Message-ID:
<CAA1D9o65hYV7m51RZm2CDA_O...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hi All,
1) Previously I queried about anuga. Now I want to know that what
is the minimum system requirement to generate a fine mesh upto resolution of
50m. My domain area is about 1000km^2. I am using the machine which have
16GB memory, even thought it is not generating the mesh with 2000
resolution.
2) How to convert sww file to avi or other video format.
3) I wish to simulate dam break phenomena in the following scenario:
I have the volume/quantum of water as my initial input. I am unable to
determine the flow rate with which water will flow from dam.
I am using Inflow function for the same which require rate, polygon, domain
as required inputs. How to set the rate of water outflow when the volume of
lake is given.
regards
Rajesh Tailor
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Message: 2
Date: Thu, 27 Oct 2011 17:51:29 +0100
From: Peter Wells <wel...@faunalia.co.uk>
Subject: [Anuga-user] Catchment Finder
To: anuga...@lists.sourceforge.net
Message-ID: <1319734289.3142.8.camel@klaus>
Content-Type: text/plain; charset="utf-8"
Hello all,
You may be interested in a free hydrology/water related WebGIS
application that Faunalia have just released called Catchment Finder.
It allows you to calculate (and download) the hydrological catchment
area draining to a point anywhere in the UK through the web browser.
Feel free to give it a go (requires internet explorer 7 or above):
http://www.faunalia.co.uk/catchmentfinder
Kind regards,
Pete
Peter Wells
Faunalia UK
23 Chestnut Close, Burgess Hill, RH15 8HN
www.faunalia.co.uk
Tel: +44 (0)1444 848012
Mob: +44 (0)7704 781683
SIP: 150...@sipgate.co.uk
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Message: 3
Date: Fri, 25 Nov 2011 16:43:43 +0530
From: parul mogra <scori...@gmail.com>
Subject: [Anuga-user] Hello
To: anuga...@lists.sourceforge.net
Message-ID:
<CAPkZ3MTovrXYBFirAnC_xk97...@mail.gmail.com>
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Message: 4
Date: Wed, 28 Dec 2011 13:43:23 +0900
From: "Aurelien Hazart" <auha...@getc.co.jp>
Subject: [Anuga-user] Anuga-validation
To: <anuga...@lists.sourceforge.net>
Message-ID: <000301ccc51b$3b51d7b0$b1f58710$@co.jp>
Content-Type: text/plain; charset="iso-2022-jp"
Dear Ole (and all)
Thank you for the great work on Anuga.
I am now trying to run the validation cases but some errors messages
happened, mostly regarding the import process.
I am running Anuga 1.2.1. Maybe I didn?t get the last version of the
validation scripts. Is there any updated version of the validations scripts
?
Thanks a lot,
Aurelien Hazart
Dear all
The Patong Bay validation scenario which is the a cornerstone in the
validation of ANUGA has now been rolled into the validation regressions test
suite validate_all.py (as of revision 7669) along with previous validation
results. It takes a few days to run on our server (Intel I7) but it serves
to verify that any future release of ANUGA still produces the results report
in our publication to within less than 1% error. Timeseries at selected
gauges are produced by the validation code for visual inspection as well.
To run all components of this you'll need something like 8GB of RAM but the
script will not attempt to run Patong unless this is the case.
Validate all runs successfully on our 64 bit cluster but please let me know
if anyone encounter problems. And let me know if it works for you too.
All the best
Ole
--------------------------
????????? ?HAZART Aurelien
??????????????
?101-0052?????????????????????
?? : 03-5283-5825 FAX : 03-5283-5826?
E-mail : <mailto:sa...@getc.co.jp> auha...@getc.co.jp
URL : <http://www.getc.co.jp> http://www.getc.co.jp
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Message: 5
Date: Mon, 9 Jan 2012 14:14:24 +0100
From: "C.Preciado" <p...@ces-info.de>
Subject: [Anuga-user] mesh file
To: <anuga...@lists.sourceforge.net>
Message-ID: <0A03B22AEA7A476EB31C879C3624E083@BCPCIBM18>
Content-Type: text/plain; charset="iso-8859-1"
Dear ANUGA users,
First of all I would like to introduce a little my work within my company
and current situation as a user of the ANUGA.
We would like to simulate a flow in a river bank in current situation and
with new scenarios with polder construction in order to prevent flood
events. From a topodata XYZ file (.csv) we have created a mesh file (.msh)
using Anuga.
The output mesh file can not be opened apparently because it is based on the
NetCDF format and the software I am using (Global Mapper) only supports
raster/grid data from NetCDF files and can?t load generically formatted
vector data like these meshes.
Since I am not a programmer and thus not an expert on scripting, I was
wondering if anyone could assist me with ideas on improving the edition of
my script and also in advising which might be the best software for the mesh
file to be managed (opened, visualised).
So far, my scrip looks as it follows:
""" Converts ASC Points Data (csv) to NETCDF DEM
This Script is used to Reformat a XYZ Data file from Ascii to NetCDF
NetCDF if the Format ANUGA Uses
"""
#---------------------------------------------------------------------------
---
# Preparation of topographic data
# Convert ASC 2 DEM 2 PTS using source data and store result in source data
#---------------------------------------------------------------------------
---
#---------------------------------------------------------------------------
---
# Import necessary modules
#---------------------------------------------------------------------------
---
# Standard modules
import anuga
from pylab import figure, plot, axis, quiver, quiverkey, show, title,
axhline
from pylab import cos, sin, pi
import numpy
import csv
import time
import os
from os.path import join
import time
import sys
import os.path
import glob
from anuga.abstract_2d_finite_volumes.util import file_function
from anuga.geometry.polygon_function import Polygon_function
from anuga.geometry.polygon import read_polygon, plot_polygons, polygon_area
from anuga.abstract_2d_finite_volumes.generic_domain import Quantity
from anuga.pmesh.mesh_interface import create_mesh_from_regions
from anuga.shallow_water.shallow_water_domain import Domain
from anuga.shallow_water.forcing import Rainfall
from anuga.shallow_water.forcing import Inflow
# from model_build_tools import get_polygon_value_list
select = """
Available Scenarios for this PROJECT
1. xyzfromRH.csv
"""
answer = int(raw_input(select))
if answer == 1:
basename = 'xyzfromRH'
if answer == 1:
elevation_file = 'xyzfromRH'
# Filenames
meshname = basename+'.msh'
meshname =join('xyzfromRH.msh') # mesh name, used to store mesh, if not
changed will speed up run
print 'Basename ',basename
#+++++END_SCENARIOS_BLOCK
#+++++START_PREPARE TERRAIN_BLOCK
#---------------------------------------------------------------------------
---
# Preparation of topographic data
# Convert ASC 2 DEM 2 PTS using source data and store result in source data
#---------------------------------------------------------------------------
---
print ' Preparing Terrain'
# Create pts file
print 'Reading and Converting', elevation_file
print '... This might take a minute or so depending on file size.....'
W=440747.9226
N=251067.1197
E=458455.4778
S=227167.9114
RangeX=E-W
RangeY=N-S
domain_Area= RangeX*RangeY
print' Domain is',RangeX,' x ',RangeY,' = ',domain_Area,' m2'
bounding_polygon = [[W, S], [E, S], [E, N], [W, N]] # should read this
polygon directly from a file be carefull of tags !!
G = Geospatial_data(elevation_file+'.csv')
G.export_points_file(basename+'.pts')
print 'Creating', meshname
print ' Creating Mesh'
maximum_triangle_area =1000.0 # basic mesh size for the catchment boundary
create_mesh_from_regions(bounding_polygon,
boundary_tags={'south': [0],
'east': [1],
'north': [2],
'west': [3]},
maximum_triangle_area=maximum_triangle_area,
filename=meshname,
use_cache=True,
verbose=True)
Thanks in advance.
Best regards,
C.Preciado
___________________________________________________________
CES Consulting Engineers Salzgitter GmbH
Hamburger Stra?e 277, D-38114 Braunschweig, Germany
Tel.: (49) +531 / 31704-164 / Fax: (49) +531 / 31704-199 / Skype:
ces-phone-pre
_______________________________________________________________________
Registered Office (Sitz der Gesellschaft): D-38114 Braunschweig
District Court of Braunschweig (Amtsgericht Braunschweig):
Register of Companies HRB 101260
Managing Directors (Gesch?ftsf?hrung):
Dr.-Ing. Detlef H?gin, Dr.-Ing. Ralf Meyerhoff
_______________________________________________________________________
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