197 lines
7.4 KiB
Python
Executable File
197 lines
7.4 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: UTF-8 no BOM -*-
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import sys,os,pwd,math,re,string,numpy, damask
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from optparse import OptionParser
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scriptID = '$Id$'
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scriptName = scriptID.split()[1]
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sys.path.append(damask.solver.Marc().libraryPath('../../'))
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try:
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from py_mentat import *
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except:
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print('error: no valid Mentat release found')
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sys.exit(-1)
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def outMentat(cmd,locals):
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if cmd[0:3] == '(!)':
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exec(cmd[3:])
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elif cmd[0:3] == '(?)':
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cmd = eval(cmd[3:])
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py_send(cmd)
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else:
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py_send(cmd)
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return
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def outStdout(cmd,locals):
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if cmd[0:3] == '(!)':
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exec(cmd[3:])
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elif cmd[0:3] == '(?)':
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cmd = eval(cmd[3:])
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print cmd
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else:
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print cmd
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return
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def output(cmds,locals,dest):
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for cmd in cmds:
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if isinstance(cmd,list):
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output(cmd,locals,dest)
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else:
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{\
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'Mentat': outMentat,\
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'Stdout': outStdout,\
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}[dest](cmd,locals)
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return
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def servoLink():
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cmds = []
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base = ['x','y','z']
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box = {'min': numpy.zeros(3,dtype='d'),
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'max': numpy.zeros(3,dtype='d'),
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'delta': numpy.zeros(3,dtype='d'),
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}
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Nnodes = py_get_int("nnodes()")
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NodeCoords = numpy.zeros((Nnodes,3),dtype='d')
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for node in xrange(Nnodes):
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NodeCoords[node,0] = py_get_float("node_x(%i)"%(node+1))
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NodeCoords[node,1] = py_get_float("node_y(%i)"%(node+1))
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NodeCoords[node,2] = py_get_float("node_z(%i)"%(node+1))
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box['min'] = NodeCoords.min(axis=0) # find the bounding box
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box['max'] = NodeCoords.max(axis=0)
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box['delta'] = box['max']-box['min']
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for coord in xrange(3): # calc the dimension of the bounding box
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if box['delta'][coord] != 0.0:
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for extremum in ['min','max']:
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rounded = round(box[extremum][coord]*1e+15/box['delta'][coord]) * \
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1e-15*box['delta'][coord] # rounding to 1e-15 of dimension
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box[extremum][coord] = {False: rounded,
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True: 0.0}[rounded == 0.0] # get rid of -0.0 (negative zeros)
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baseNode = {}
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linkNodes = []
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for node in xrange(Nnodes): # loop over all nodes
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pos = {}
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key = {}
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maxFlag = [False, False, False]
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Nmax = 0
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Nmin = 0
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for coord in xrange(3): # for each direction
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if box['delta'][coord] != 0.0:
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rounded = round(NodeCoords[node,coord]*1e+15/box['delta'][coord]) * \
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1e-15*box['delta'][coord] # rounding to 1e-15 of dimension
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NodeCoords[node,coord] = {False: rounded,
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True: 0.0}[rounded == 0.0] # get rid of -0.0 (negative zeros)
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key[base[coord]] = "%.8e"%NodeCoords[node,coord] # translate position to string
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if (key[base[coord]] == "%.8e"%box['min'][coord]): # compare to min of bounding box (i.e. is on outer face?)
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Nmin += 1 # count outer (back) face membership
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elif (key[base[coord]] == "%.8e"%box['max'][coord]): # compare to max of bounding box (i.e. is on outer face?)
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Nmax += 1 # count outer (front) face membership
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maxFlag[coord] = True # remember face membership (for linked nodes)
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if Nmin > 0 and Nmin > Nmax: # node is on more back than front faces
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# prepare for any non-existing entries in the data structure
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if key['x'] not in baseNode.keys():
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baseNode[key['x']] = {}
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if key['y'] not in baseNode[key['x']].keys():
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baseNode[key['x']][key['y']] = {}
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if key['z'] not in baseNode[key['x']][key['y']].keys():
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baseNode[key['x']][key['y']][key['z']] = 0
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baseNode[key['x']][key['y']][key['z']] = node+1 # remember the base node id
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elif Nmax > 0 and Nmax >= Nmin: # node is on at least as many front than back faces
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linkNodes.append({'id': node+1,'coord': NodeCoords[node], 'onFaces': Nmax,'faceMember': maxFlag})
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baseCorner = baseNode["%.8e"%box['min'][0]]["%.8e"%box['min'][1]]["%.8e"%box['min'][2]] # detect ultimate base node
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for node in linkNodes: # loop over all linked nodes
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linkCoord = [node['coord']] # start list of control node coords with my coords
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for dir in xrange(3): # check for each direction
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if node['faceMember'][dir]: # me on this front face
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linkCoord[0][dir] = box['min'][dir] # project me onto rear face along dir
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linkCoord.append(numpy.array(box['min'])) # append base corner
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linkCoord[-1][dir] = box['max'][dir] # stretch it to corresponding control leg of "dir"
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nLinks = len(linkCoord)
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for dof in [1,2,3]:
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cmds.append([
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"*new_link *link_class servo",
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"*link_class servo *tied_node %i"%node['id'],
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"*link_class servo *tied_dof %i"%dof,
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"*servo_nterms %i"%(1+nLinks),
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])
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for i in range(nLinks):
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cmds.append([
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"*link_class servo *servo_ret_node %i %i"%(i+1,baseNode["%.8e"%linkCoord[i][0]]["%.8e"%linkCoord[i][1]]["%.8e"%linkCoord[i][2]]),
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"*link_class servo *servo_ret_dof %i %i"%(i+1,dof),
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"*link_class servo *servo_ret_coef %i 1"%(i+1),
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])
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cmds.append([
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"*link_class servo *servo_ret_node %i %i"%(1+nLinks,baseCorner),
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"*link_class servo *servo_ret_dof %i %i"%(1+nLinks,dof),
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"*link_class servo *servo_ret_coef %i -%i"%(1+nLinks,nLinks-1),
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])
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cmds.append([
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"*select_nodes",
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["%i"%node['id'] for node in linkNodes],
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"#",
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])
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return cmds
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#--------------------------------------------------------------------------------------------------
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# MAIN
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#--------------------------------------------------------------------------------------------------
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parser = OptionParser(usage='%prog [options]', description = """
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Set up servo linking to achieve periodic boundary conditions for a regular hexahedral mesh presently opened in MSC.Mentat
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""" + string.replace(scriptID,'\n','\\n')
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)
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parser.add_option("-p", "--port", type="int",\
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dest="port",\
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help="Mentat connection port [%default]")
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parser.add_option("-v", "--verbose", action="store_true",\
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dest="verbose",\
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help="write Mentat command stream also to stdout [%default]")
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parser.set_defaults(port = 40007)
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parser.set_defaults(verbose = False)
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(options, args) = parser.parse_args()
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outputLocals = {}
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print '\033[1m'+scriptName+'\033[0m\n'
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print 'waiting to connect...'
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py_connect('',options.port)
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print 'connected...'
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output([\
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'*draw_manual', # prevent redrawing in "new" Mentat, should be much faster
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'*remove_all_servos',
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'*sweep_all',
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'*renumber_nodes',
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'*set_links off',
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],outputLocals,'Mentat') # script depends on consecutive numbering of nodes
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cmds = servoLink()
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output(cmds,outputLocals,'Mentat')
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output([\
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'*set_links on',
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'*draw',
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],outputLocals,'Mentat') # script depends on consecutive numbering of nodes
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py_disconnect()
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if options.verbose:
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output(cmds,outputLocals,'Stdout')
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