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# This is the cookbook library for generic scripts. |
######################################################## |
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# Imports come from the folder cblib and contain script definitions. |
# |
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# Copyright (c) 2003-2009 by University of Queensland |
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# Earth Systems Science Computational Center (ESSCC) |
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# http://www.uq.edu.au/esscc |
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# |
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# Primary Business: Queensland, Australia |
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# Licensed under the Open Software License version 3.0 |
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# http://www.opensource.org/licenses/osl-3.0.php |
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# |
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######################################################## |
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import sys |
__copyright__="""Copyright (c) 2003-2009 by University of Queensland |
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import os |
Earth Systems Science Computational Center (ESSCC) |
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http://www.uq.edu.au/esscc |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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__url__="https://launchpad.net/escript-finley" |
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#set the subdirectory path |
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sys.path.insert(0,'cblib') |
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#import all examples to library |
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from wavesolver2d import * |
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#exit subdirectory |
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del sys.path[0] |
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""" |
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Author: Antony Hallam antony.hallam@uqconnect.edu.au |
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""" |
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from esys.pycad import * |
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import numpy as np |
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# To run the function it is necessary to import the modules we |
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# require. |
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# This imports everything from the escript library |
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from esys.escript import * |
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# numpy for array handling |
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import numpy as np |
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# pylab for matplotlib and plotting |
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import pylab as pl |
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# tools for dealing with PDEs - contains locator |
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from esys.escript.pdetools import * |
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# routine to find consecutive coordinates of a loop in pycad |
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def getLoopCoords(loop): |
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# return all construction points of input |
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temp = loop.getConstructionPoints() |
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#create a numpy array for xyz components or construction points |
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coords = np.zeros([len(temp),3],float) |
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#place construction points in array |
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for i in range(0,len(temp)): |
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coords[i,:]=temp[i].getCoordinates() |
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#return a numpy array |
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return coords |
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# Calculate the location of quivers for a matplotlib plot |
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# quivshape :: [x,y] :: number of quivers in x and y direction |
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# lenxax :: length of model along x |
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# lenyax :: length of model along y |
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# qu :: gradient of escript solution ie grad(T) |
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def toQuivLocs(quivshape,lenxax,lenyax,qu): |
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numquiv = quivshape[0]*quivshape[1] # total number of quivers |
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dx = lenxax/quivshape[0]+1. # quiver x spacing |
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dy = lenyax/quivshape[1]+1. # quiver y spacing |
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qulocs=np.zeros([numquiv,2],float) # memory for quiver locations |
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# fill qulocs |
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for i in range(0,quivshape[0]-1): |
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for j in range(0,quivshape[1]-1): |
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qulocs[i*quivshape[0]+j,:] = [dx+dx*i,dy+dy*j] |
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# retreive values for quivers direction and shape from qu |
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quL = Locator(qu.getFunctionSpace(),qulocs.tolist()) |
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qu = quL(qu) #array of dx,dy for quivers |
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qu = np.array(qu) #turn into a numpy array |
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qulocs = quL.getX() #returns actual locations from data |
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qulocs = np.array(qulocs) #turn into a numpy array |
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return qu,qulocs |
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# Extract the X and Y coordinates of an array |
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# coords :: escript coordiantes from .getX function |
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def toXYTuple(coords): |
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coords = np.array(coords.toListOfTuples()) #convert to Tuple |
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coordX = coords[:,0]; coordY = coords[:,1] #X and Y components. |
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return coordX,coordY |
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