982 lines
37 KiB
Python
Executable File
982 lines
37 KiB
Python
Executable File
#!/usr/bin/env python
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import sys,os,math,re,string, damask
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from optparse import OptionParser, OptionGroup, Option, SUPPRESS_HELP
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try: # check for Python Image Lib
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import Image,ImageDraw
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ImageCapability = True
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except:
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ImageCapability = False
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sys.path.append(damask.solver.Marc().libraryPath('../../'))
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try: # check for MSC.Mentat Python interface
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from py_mentat import *
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MentatCapability = True
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except:
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MentatCapability = False
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# -----------------------------
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class extendedOption(Option):
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# -----------------------------
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# used for definition of new option parser action 'extend', which enables to take multiple option arguments
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# taken from online tutorial http://docs.python.org/library/optparse.html
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ACTIONS = Option.ACTIONS + ("extend",)
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STORE_ACTIONS = Option.STORE_ACTIONS + ("extend",)
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TYPED_ACTIONS = Option.TYPED_ACTIONS + ("extend",)
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ALWAYS_TYPED_ACTIONS = Option.ALWAYS_TYPED_ACTIONS + ("extend",)
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def take_action(self, action, dest, opt, value, values, parser):
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if action == "extend":
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lvalue = value.split(",")
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values.ensure_value(dest, []).extend(lvalue)
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else:
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Option.take_action(self, action, dest, opt, value, values, parser)
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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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if 'log' in locals: locals['log'].append(cmd)
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else:
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py_send(cmd)
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if 'log' in locals: locals['log'].append(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 rcbOrientationParser(content):
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grains = []
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myOrientation = [0.0,0.0,0.0]
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for line in content:
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m = re.match(r'\s*(#|$)',line)
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if m: continue # skip comments and blank lines
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for grain in range(2):
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myID = int(line.split()[12+grain]) # get grain id
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myOrientation = map(float,line.split())[3*grain:3+3*grain] # get orientation
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if len(grains) < myID:
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for i in range(myID-len(grains)): # extend list to necessary length
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grains.append([0.0,0.0,0.0])
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grains[myID-1] = myOrientation # store Euler angles
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return grains
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def rcbParser(content,M,size,tolerance): # parser for TSL-OIM reconstructed boundary files
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# find bounding box
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boxX = [1.*sys.maxint,-1.*sys.maxint]
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boxY = [1.*sys.maxint,-1.*sys.maxint]
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x = [0.,0.]
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y = [0.,0.]
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for line in content:
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m = re.match(r'\s*(#|$)',line)
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if m: continue # skip comments and blank lines
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(x[0],y[0],x[1],y[1]) = map(float,line.split())[8:12] # get start and end coordinates of each segment.
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(x[0],y[0]) = (M[0]*x[0]+M[1]*y[0],M[2]*x[0]+M[3]*y[0]) # apply transformation to coordinates
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(x[1],y[1]) = (M[0]*x[1]+M[1]*y[1],M[2]*x[1]+M[3]*y[1]) # to get rcb --> Euler system
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boxX[0] = min(boxX[0],x[0],x[1])
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boxX[1] = max(boxX[1],x[0],x[1])
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boxY[0] = min(boxY[0],y[0],y[1])
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boxY[1] = max(boxY[1],y[0],y[1])
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dX = boxX[1]-boxX[0]
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dY = boxY[1]-boxY[0]
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scalePatch = size/dX
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# read segments
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segment = 0
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connectivityXY = {"0": {"0":[],"%g"%dY:[],},\
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"%g"%dX: {"0":[],"%g"%dY:[],},}
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connectivityYX = {"0": {"0":[],"%g"%dX:[],},\
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"%g"%dY: {"0":[],"%g"%dX:[],},}
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grainNeighbors = []
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for line in content:
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m = re.match(r'\s*(#|$)',line)
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if m: continue # skip comments and blank lines
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(x[0],y[0],x[1],y[1]) = map(float,line.split())[8:12] # get start and end coordinates of each segment
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(x[0],y[0]) = (M[0]*x[0]+M[1]*y[0],M[2]*x[0]+M[3]*y[0]) # apply transformation to coordinates
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(x[1],y[1]) = (M[0]*x[1]+M[1]*y[1],M[2]*x[1]+M[3]*y[1]) # to get rcb --> Euler system
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x[0] -= boxX[0] # make relative to origin of bounding box
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x[1] -= boxX[0]
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y[0] -= boxY[0]
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y[1] -= boxY[0]
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grainNeighbors.append(map(int,line.split()[12:14])) # remember right and left grain per segment
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for i in range(2): # store segment to both points
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match = False # check whether point is already known (within a small range)
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for posX in connectivityXY.keys():
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if (abs(float(posX)-x[i])<dX*tolerance):
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for posY in connectivityXY[posX].keys():
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if (abs(float(posY)-y[i])<dY*tolerance):
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keyX = posX
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keyY = posY
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match = True
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break
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break
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if (not match):
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# force to boundary if inside tolerance to it
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if (abs(x[i])<dX*tolerance):
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x[i] = 0
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if (abs(dX-x[i])<dX*tolerance):
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x[i] = dX
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if (abs(y[i])<dY*tolerance):
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y[i] = 0
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if (abs(dY-y[i])<dY*tolerance):
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y[i] = dY
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keyX = "%g"%x[i]
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keyY = "%g"%y[i]
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if keyX not in connectivityXY: # create new hash entry for so far unknown point
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connectivityXY[keyX] = {}
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if keyY not in connectivityXY[keyX]: # create new hash entry for so far unknown point
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connectivityXY[keyX][keyY] = []
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if keyY not in connectivityYX: # create new hash entry for so far unknown point
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connectivityYX[keyY] = {}
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if keyX not in connectivityYX[keyY]: # create new hash entry for so far unknown point
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connectivityYX[keyY][keyX] = []
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connectivityXY[keyX][keyY].append(segment)
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connectivityYX[keyY][keyX].append(segment)
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segment += 1
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# top border
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keyId = "0"
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boundary = connectivityYX[keyId].keys()
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boundary.sort(key=float)
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for indexBdy in range(len(boundary)-1):
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connectivityXY[boundary[indexBdy]][keyId].append(segment)
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connectivityXY[boundary[indexBdy+1]][keyId].append(segment)
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connectivityYX[keyId][boundary[indexBdy]].append(segment)
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connectivityYX[keyId][boundary[indexBdy+1]].append(segment)
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segment += 1
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# right border
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keyId = "%g"%(boxX[1]-boxX[0])
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boundary = connectivityXY[keyId].keys()
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boundary.sort(key=float)
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for indexBdy in range(len(boundary)-1):
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connectivityYX[boundary[indexBdy]][keyId].append(segment)
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connectivityYX[boundary[indexBdy+1]][keyId].append(segment)
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connectivityXY[keyId][boundary[indexBdy]].append(segment)
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connectivityXY[keyId][boundary[indexBdy+1]].append(segment)
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segment += 1
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# bottom border
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keyId = "%g"%(boxY[1]-boxY[0])
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boundary = connectivityYX[keyId].keys()
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boundary.sort(key=float,reverse=True)
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for indexBdy in range(len(boundary)-1):
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connectivityXY[boundary[indexBdy]][keyId].append(segment)
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connectivityXY[boundary[indexBdy+1]][keyId].append(segment)
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connectivityYX[keyId][boundary[indexBdy]].append(segment)
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connectivityYX[keyId][boundary[indexBdy+1]].append(segment)
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segment += 1
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# left border
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keyId = "0"
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boundary = connectivityXY[keyId].keys()
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boundary.sort(key=float,reverse=True)
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for indexBdy in range(len(boundary)-1):
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connectivityYX[boundary[indexBdy]][keyId].append(segment)
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connectivityYX[boundary[indexBdy+1]][keyId].append(segment)
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connectivityXY[keyId][boundary[indexBdy]].append(segment)
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connectivityXY[keyId][boundary[indexBdy+1]].append(segment)
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segment += 1
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allkeysX = connectivityXY.keys()
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allkeysX.sort()
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points = []
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segments = [[] for i in range(segment)]
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pointId = 0
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for keyX in allkeysX:
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allkeysY = connectivityXY[keyX].keys()
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allkeysY.sort()
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for keyY in allkeysY:
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points.append({'coords': [float(keyX)*scalePatch,float(keyY)*scalePatch], 'segments': connectivityXY[keyX][keyY]})
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for segment in connectivityXY[keyX][keyY]:
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if (segments[segment] == None):
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segments[segment] = pointId
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else:
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segments[segment].append(pointId)
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pointId += 1
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grains = {'draw': [], 'legs': []}
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pointId = 0
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for point in points:
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while point['segments']:
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myStart = pointId
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grainDraw = [points[myStart]['coords']]
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innerAngleSum = 0.0
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myWalk = point['segments'].pop()
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grainLegs = [myWalk]
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if segments[myWalk][0] == myStart:
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myEnd = segments[myWalk][1]
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else:
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myEnd = segments[myWalk][0]
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while (myEnd != pointId):
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myV = [points[myEnd]['coords'][0]-points[myStart]['coords'][0],\
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points[myEnd]['coords'][1]-points[myStart]['coords'][1]]
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myLen = math.sqrt(myV[0]**2+myV[1]**2)
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best = {'product': -2.0, 'peek': -1, 'len': -1, 'point': -1}
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for peek in points[myEnd]['segments']:
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if peek == myWalk:
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continue
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if segments[peek][0] == myEnd:
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peekEnd = segments[peek][1]
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else:
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peekEnd = segments[peek][0]
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peekV = [points[myEnd]['coords'][0]-points[peekEnd]['coords'][0],\
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points[myEnd]['coords'][1]-points[peekEnd]['coords'][1]]
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peekLen = math.sqrt(peekV[0]**2+peekV[1]**2)
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crossproduct = (myV[0]*peekV[1]-myV[1]*peekV[0])/myLen/peekLen
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dotproduct = (myV[0]*peekV[0]+myV[1]*peekV[1])/myLen/peekLen
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if crossproduct*(dotproduct+1.0) >= best['product']:
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best['product'] = crossproduct*(dotproduct+1.0)
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best['peek'] = peek
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best['point'] = peekEnd
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innerAngleSum += best['product']
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myWalk = best['peek']
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myStart = myEnd
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myEnd = best['point']
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if myWalk in points[myStart]['segments']:
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points[myStart]['segments'].remove(myWalk)
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else:
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sys.stderr.write(str(myWalk)+' not in segments of '+str(myStart))
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grainDraw.append(points[myStart]['coords'])
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grainLegs.append(myWalk)
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if innerAngleSum > 0.0:
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grains['draw'].append(grainDraw)
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grains['legs'].append(grainLegs)
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else:
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grains['box'] = grainLegs
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pointId += 1
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# build overall data structure
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rcData = {'dimension':[dX,dY], 'point': [],'segment': [], 'grain': [], 'grainMapping': []}
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for point in points:
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rcData['point'].append(point['coords'])
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print " found %i points"%(len(rcData['point']))
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for segment in segments:
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rcData['segment'].append(segment)
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print " built %i segments"%(len(rcData['segment']))
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for legs in grains['legs']: # loop over grains
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rcData['grain'].append(legs) # store list of boundary segments
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myNeighbors = {}
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for leg in legs: # test each boundary segment
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if leg < len(grainNeighbors): # a valid segment index?
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for side in range(2): # look at both sides of the segment
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if grainNeighbors[leg][side] in myNeighbors: # count occurrence of grain IDs
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myNeighbors[grainNeighbors[leg][side]] += 1
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else:
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myNeighbors[grainNeighbors[leg][side]] = 1
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if myNeighbors: # do I have any neighbors (i.e., non-bounding box segment)
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candidateGrains = sorted(myNeighbors.iteritems(), key=lambda (k,v): (v,k), reverse=True) # sort grain counting
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if candidateGrains[0][0] not in rcData['grainMapping']: # most frequent one not yet seen?
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rcData['grainMapping'].append(candidateGrains[0][0]) # must be me then
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else:
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rcData['grainMapping'].append(candidateGrains[1][0]) # special case of bi-crystal situation...
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print " found %i grains\n"%(len(rcData['grain']))
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rcData['box'] = grains['box']
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return rcData
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def init():
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return ["*new_model yes",
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"*select_clear",
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"*reset",
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"*set_nodes off",
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"*elements_solid",
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"*show_view 4",
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"*reset_view",
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"*view_perspective",
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"*redraw",
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]
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def sample(size,aspect,n,xmargin,ymargin):
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cmds = [\
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# gauge
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"*add_points %f %f %f"%(-size*(0.5+xmargin), size*(0.5*aspect+ymargin),0),
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"*add_points %f %f %f"%( size*(0.5+xmargin), size*(0.5*aspect+ymargin),0),
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"*add_points %f %f %f"%( size*(0.5+xmargin),-size*(0.5*aspect+ymargin),0),
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"*add_points %f %f %f"%(-size*(0.5+xmargin),-size*(0.5*aspect+ymargin),0),
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"*set_curve_type line",
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"*add_curves %i %i"%(1,2),
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"*add_curves %i %i"%(3,4),
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"*set_curve_div_type_fix_ndiv",
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"*set_curve_div_num %i"%n,
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"*apply_curve_divisions",
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"1 2 #",
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"*add_curves %i %i"%(2,3), # right side
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"*add_curves %i %i"%(4,1), # left side
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"*set_curve_div_type_fix_ndiv",
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"*set_curve_div_num %i"%n,
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"*apply_curve_divisions",
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"3 4 #",
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]
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return cmds
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def patch(a,n,mesh,rcData):
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cmds = []
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for l in range(len(rcData['point'])): # generate all points
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cmds.append("*add_points %f %f %f"%(rcData['point'][l][0]-a/2.0,rcData['point'][l][1]-a/rcData['dimension'][0]*rcData['dimension'][1]/2.0,0))
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cmds.append(["*set_curve_type line",
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"*set_curve_div_type_fix_ndiv",
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])
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for m in range(len(rcData['segment'])): # generate all curves and subdivide them for overall balanced piece length
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start = rcData['segment'][m][0]
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end = rcData['segment'][m][1]
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cmds.append([\
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"*add_curves %i %i" %(start+rcData['offsetPoints'],
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end +rcData['offsetPoints']),
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"*set_curve_div_num %i"%(max(1,round(math.sqrt((rcData['point'][start][0]-rcData['point'][end][0])**2+\
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(rcData['point'][start][1]-rcData['point'][end][1])**2)/a*n))),
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"*apply_curve_divisions",
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"%i #"%(m+rcData['offsetSegments']),
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])
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grain = 0
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cmds.append('(!)locals["last"] = py_get_int("nelements()")')
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for g in rcData['grain']:
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cmds.append([\
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'(!)locals["first"] = locals["last"]+1',
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"*%s "%mesh+" ".join([str(rcData['offsetSegments']+x) for x in g])+" #",
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'(!)locals["last"] = py_get_int("nelements()")',
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"*select_elements",
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'(?)"%i to %i #"%(locals["first"],locals["last"])',
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"*store_elements grain_%i"%rcData['grainMapping'][grain],
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"all_selected",
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"*select_clear",
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])
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grain += 1
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return cmds
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def gage(mesh,rcData):
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return([\
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"*%s "%mesh +
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" ".join([str(x) for x in range(1,rcData['offsetSegments'])]) +
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" " +
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" ".join([str(rcData['offsetSegments']+x)for x in rcData['box']]) +
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" #",
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"*select_reset",
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"*select_clear",
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"*select_elements",
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"all_existing",
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"*select_mode_except",
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['grain_%i'%rcData['grainMapping'][i] for i in range(len(rcData['grain']))],
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"#",
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"*store_elements matrix",
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"all_selected",
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"*select_mode_invert",
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"*select_elements",
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"all_existing",
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"*store_elements _grains",
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"all_selected",
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"*select_clear",
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"*select_reset",
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])
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def expand3D(thickness,steps):
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return([\
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"*set_expand_translation z %f"%(thickness/steps),
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"*set_expand_repetitions %i"%steps,
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"*expand_elements",
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"all_existing",
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])
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def initial_conditions(grainNumber,grainMapping):
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cmds = [\
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"*new_icond",
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"*icond_name _temperature",
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"*icond_type state_variable",
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"*icond_param_value state_var_id 1",
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"*icond_dof_value var 300",
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"*add_icond_elements",
|
|
"all_existing",
|
|
"*new_icond",
|
|
"*icond_name _homogenization",
|
|
"*icond_type state_variable",
|
|
"*icond_param_value state_var_id 2",
|
|
"*icond_dof_value var 1",
|
|
"*add_icond_elements",
|
|
"all_existing",
|
|
]
|
|
|
|
for grain in range(grainNumber):
|
|
cmds.append([\
|
|
"*new_icond",
|
|
"*icond_name grain_%i"%grainMapping[grain],
|
|
"*icond_type state_variable",
|
|
"*icond_param_value state_var_id 3",
|
|
"*icond_dof_value var %i"%(grain+1),
|
|
"*add_icond_elements",
|
|
"grain_%i"%grainMapping[grain],
|
|
"",
|
|
])
|
|
cmds.append([\
|
|
"*new_icond",
|
|
"*icond_name rim",
|
|
"*icond_type state_variable",
|
|
"*icond_param_value state_var_id 3",
|
|
"*icond_dof_value var %i"%(grainNumber+1),
|
|
"*add_icond_elements",
|
|
"matrix",
|
|
])
|
|
return cmds
|
|
|
|
|
|
def boundary_conditions(rate,thickness, size,aspect,xmargin,ymargin):
|
|
|
|
inner = (1 - 1.0e-4) * size*(0.5+xmargin)
|
|
outer = (1 + 1.0e-4) * size*(0.5+xmargin)
|
|
lower = (1 - 1.0e-4) * size*(0.5*aspect+ymargin)
|
|
upper = (1 + 1.0e-4) * size*(0.5*aspect+ymargin)
|
|
|
|
return [\
|
|
"*new_md_table 1 1",
|
|
"*table_name linear",
|
|
"*set_md_table_type 1 time",
|
|
"*table_add",
|
|
"0 0",
|
|
"1 1",
|
|
"*select_method_box",
|
|
"*new_apply",
|
|
"*apply_name pull_bottom",
|
|
"*apply_type fixed_displacement",
|
|
"*apply_dof y",
|
|
"*apply_dof_value y %f"%(-rate*(inner+outer)/2.0),
|
|
"*apply_dof_table y linear",
|
|
"*select_clear_nodes",
|
|
"*select_nodes",
|
|
"%f %f"%(-outer,outer),
|
|
"%f %f"%(-upper,-lower),
|
|
"%f %f"%(-.0001*thickness,1.0001*thickness),
|
|
"*add_apply_nodes",
|
|
"all_selected",
|
|
"*new_apply",
|
|
"*apply_name pull_top",
|
|
"*apply_type fixed_displacement",
|
|
"*apply_dof y",
|
|
"*apply_dof_value y %f"%(rate*(inner+outer)/2.0),
|
|
"*apply_dof_table y linear",
|
|
"*select_clear_nodes",
|
|
"*select_nodes",
|
|
"%f %f"%(-outer,outer),
|
|
"%f %f"%(lower,upper),
|
|
"%f %f"%(-.0001*thickness,1.0001*thickness),
|
|
"*add_apply_nodes",
|
|
"all_selected",
|
|
"*new_apply",
|
|
"*apply_name fix_x",
|
|
"*apply_type fixed_displacement",
|
|
"*apply_dof x",
|
|
"*apply_dof_value x 0",
|
|
"*select_clear_nodes",
|
|
"*select_nodes",
|
|
"%f %f"%(-outer,-inner),
|
|
"%f %f"%(lower,upper),
|
|
"%f %f"%(-.0001*thickness,.0001*thickness),
|
|
"%f %f"%(-outer,-inner),
|
|
"%f %f"%(lower,upper),
|
|
"%f %f"%(0.9999*thickness,1.0001*thickness),
|
|
"%f %f"%(-outer,-inner),
|
|
"%f %f"%(-upper,-lower),
|
|
"%f %f"%(-.0001*thickness,.0001*thickness),
|
|
"%f %f"%(-outer,-inner),
|
|
"%f %f"%(-upper,-lower),
|
|
"%f %f"%(0.9999*thickness,1.0001*thickness),
|
|
"*add_apply_nodes",
|
|
"all_selected",
|
|
"*new_apply",
|
|
"*apply_name fix_z",
|
|
"*apply_type fixed_displacement",
|
|
"*apply_dof z",
|
|
"*apply_dof_value z 0",
|
|
"*select_clear_nodes",
|
|
"*select_nodes",
|
|
"%f %f"%(-outer,-inner),
|
|
"%f %f"%(lower,upper),
|
|
"%f %f"%(-.0001*thickness,.0001*thickness),
|
|
"%f %f"%(-outer,-inner),
|
|
"%f %f"%(-upper,-lower),
|
|
"%f %f"%(-.0001*thickness,.0001*thickness),
|
|
"%f %f"%(inner,outer),
|
|
"%f %f"%(lower,upper),
|
|
"%f %f"%(-.0001*thickness,.0001*thickness),
|
|
"%f %f"%(inner,outer),
|
|
"%f %f"%(-upper,-lower),
|
|
"%f %f"%(-.0001*thickness,.0001*thickness),
|
|
"*add_apply_nodes",
|
|
"all_selected",
|
|
"*select_clear",
|
|
"*select_reset",
|
|
]
|
|
|
|
def materials():
|
|
return [\
|
|
"*new_material",
|
|
"*material_name patch",
|
|
"*material_type mechanical:hypoelastic",
|
|
"*material_option hypoelastic:method:hypela2",
|
|
"*material_option hypoelastic:pass:def_rot",
|
|
"*add_material_elements",
|
|
"all_existing",
|
|
]
|
|
|
|
|
|
def loadcase(time,incs,Ftol):
|
|
return [\
|
|
"*new_loadcase",
|
|
"*loadcase_name puller",
|
|
"*loadcase_type static",
|
|
"*loadcase_value time",
|
|
"%g"%time,
|
|
"*loadcase_value nsteps",
|
|
"%i"%incs,
|
|
"*loadcase_value maxrec",
|
|
"20",
|
|
"*loadcase_value ntime_cuts",
|
|
"30",
|
|
"*loadcase_value force",
|
|
"%g"%Ftol,
|
|
]
|
|
|
|
|
|
def job(grainNumber,grainMapping,twoD):
|
|
return [\
|
|
"*new_job",
|
|
"*job_name pull",
|
|
"*job_class mechanical",
|
|
"*add_job_loadcases puller",
|
|
"*add_job_iconds homogenization",
|
|
["*add_job_iconds grain_%i"%i for i in grainMapping[:grainNumber]],
|
|
"*add_job_iconds rim",
|
|
"*job_option dimen:%s | analysis dimension"%({True:'two ',False:'three'}[twoD]),
|
|
"*job_option strain:large | finite strains",
|
|
"*job_option large_strn_proc:upd_lagrange | updated Lagrange framework",
|
|
"*job_option plas_proc:multiplicative | multiplicative decomp of F",
|
|
"*job_option solver_nonsym:on | nonsymmetrical solution",
|
|
"*job_option solver:mfront_sparse | multi-frontal sparse",
|
|
"*job_param stef_boltz 5.670400e-8",
|
|
"*job_param univ_gas_const 8.314472",
|
|
"*job_param planck_radiation_2 1.4387752e-2",
|
|
"*job_param speed_light_vacuum 299792458",
|
|
# "*job_usersub_file /san/%s/FEM/DAMASK/code/mpie_cpfem_marc2010.f90 | subroutine definition"%(pwd.getpwuid(os.geteuid())[0].rpartition("\\")[2]),
|
|
"*job_option user_source:compile_save",
|
|
]
|
|
|
|
# "*job_option large:on | large displacement",
|
|
# "*job_option plasticity:l_strn_mn_add | large strain additive",
|
|
# "*job_option cdilatation:on | constant dilatation",
|
|
# "*job_option update:on | updated lagrange procedure",
|
|
# "*job_option finite:on | large strains",
|
|
# "*job_option restart_mode:write | enable restarting",
|
|
|
|
|
|
def postprocess():
|
|
return [\
|
|
"*add_post_tensor stress",
|
|
"*add_post_tensor strain",
|
|
"*add_post_var von_mises",
|
|
"",
|
|
]
|
|
|
|
|
|
|
|
def cleanUp(a):
|
|
return [\
|
|
"*remove_curves",
|
|
"all_existing",
|
|
"*remove_points",
|
|
"all_existing",
|
|
"*set_sweep_tolerance %f"%(1e-5*a),
|
|
"*sweep_all",
|
|
"*renumber_all",
|
|
]
|
|
|
|
|
|
# -------------------------
|
|
def image(name,imgsize,marginX,marginY,rcData):
|
|
# -------------------------
|
|
|
|
dX = max([coords[0] for coords in rcData['point']])
|
|
dY = max([coords[1] for coords in rcData['point']])
|
|
offsetX = imgsize*marginX
|
|
offsetY = imgsize*marginY
|
|
sizeX = int(imgsize*(1 +2*marginX))
|
|
sizeY = int(imgsize*(dY/dX+2*marginY))
|
|
|
|
scaleImg = imgsize/dX # rescale from max x coord
|
|
|
|
img = Image.new("RGB",(sizeX,sizeY),(255,255,255))
|
|
draw = ImageDraw.Draw(img)
|
|
|
|
for id,point in enumerate(rcData['point']):
|
|
draw.text([offsetX+point[0]*scaleImg,sizeY-(offsetY+point[1]*scaleImg)],"%i"%id,fill=(0,0,0))
|
|
|
|
for id,vertex in enumerate(rcData['segment']):
|
|
start = rcData['point'][vertex[0]]
|
|
end = rcData['point'][vertex[1]]
|
|
draw.text([offsetX+(start[0]+end[0])/2.0*scaleImg,sizeY-(offsetY+(start[1]+end[1])/2.0*scaleImg)],"%i"%id,fill=(0,0,128))
|
|
draw.line([offsetX+start[0]*scaleImg,sizeY-(offsetY+start[1]*scaleImg),
|
|
offsetX+ end[0]*scaleImg,sizeY-(offsetY+ end[1]*scaleImg)],width=1,fill=(128,128,128))
|
|
|
|
for id,segment in enumerate(rcData['box']):
|
|
start = rcData['point'][rcData['segment'][segment][0]]
|
|
end = rcData['point'][rcData['segment'][segment][1]]
|
|
draw.line([offsetX+start[0]*scaleImg,sizeY-(offsetY+start[1]*scaleImg),
|
|
offsetX+ end[0]*scaleImg,sizeY-(offsetY+ end[1]*scaleImg)],width=3,fill=(128,128*(id%2),0))
|
|
|
|
for grain,origGrain in enumerate(rcData['grainMapping']):
|
|
center = [0.0,0.0]
|
|
for segment in rcData['grain'][grain]: # loop thru segments around grain
|
|
for point in rcData['segment'][segment]: # take start and end points
|
|
center[0] += rcData['point'][point][0] # build vector sum
|
|
center[1] += rcData['point'][point][1]
|
|
|
|
center[0] /= len(rcData['grain'][grain])*2 # normalize by two times segment count, i.e. point count
|
|
center[1] /= len(rcData['grain'][grain])*2
|
|
|
|
draw.text([offsetX+center[0]*scaleImg,sizeY-(offsetY+center[1]*scaleImg)],'%i -> %i'%(grain,origGrain),fill=(128,32,32))
|
|
|
|
img.save(name+'.png',"PNG")
|
|
|
|
# -------------------------
|
|
def inside(x,y,points): # tests whether point(x,y) is within polygon described by points
|
|
# -------------------------
|
|
inside = False
|
|
npoints=len(points)
|
|
(x1,y1) = points[npoints-1] # start with last point of points
|
|
startover = (y1 >= y) # am I above testpoint?
|
|
for i in range(npoints): # loop through all points
|
|
(x2,y2) = points[i] # next point
|
|
endover = (y2 >= y) # am I above testpoint?
|
|
if (startover != endover): # one above one below testpoint?
|
|
if((y2 - y)*(x2 - x1) <= (y2 - y1)*(x2 - x)): # check for intersection
|
|
if (endover):
|
|
inside = not inside # found intersection
|
|
else:
|
|
if (not endover):
|
|
inside = not inside # found intersection
|
|
startover = endover # make second point first point
|
|
(x1,y1) = (x2,y2)
|
|
|
|
return inside
|
|
|
|
# -------------------------
|
|
def fftbuild(rcData, height,xframe,yframe,resolution,extrusion): # build array of grain numbers
|
|
# -------------------------
|
|
maxX = -1.*sys.maxint
|
|
maxY = -1.*sys.maxint
|
|
for line in rcData['point']: # find data range
|
|
(x,y) = line
|
|
maxX = max(maxX, x)
|
|
maxY = max(maxY, y)
|
|
xsize = maxX+2*xframe # add framsize
|
|
ysize = maxY+2*yframe
|
|
xres=round(resolution/2.0)*2 # use only even resolution
|
|
yres=round(xres/xsize*ysize/2.0)*2 # calculate other resolutions
|
|
zres = 1
|
|
zsize = min([xsize/xres,ysize/yres])
|
|
|
|
fftdata = {'fftpoints':[], \
|
|
'resolution':(xres,yres,zres), \
|
|
'dimension':(xsize,ysize,zsize)}
|
|
|
|
frameindex=len(rcData['grain'])+1 # calculate frame index as largest grain index plus one
|
|
dx = xsize/(xres+1) # calculate step sizes
|
|
dy = ysize/(yres+1)
|
|
|
|
grainpoints = []
|
|
for segments in rcData['grain']: # get segments of each grain
|
|
points = {}
|
|
for i,segment in enumerate(segments[:-1]): # loop thru segments except last (s=[start,end])
|
|
points[rcData['segment'][segment][0]] = i # assign segment index to start point
|
|
points[rcData['segment'][segment][1]] = i # assigne segment index to endpoint
|
|
for i in range(2): # check points of last segment
|
|
if points[rcData['segment'][segments[-1]][i]] != 0: # not on first segment
|
|
points[rcData['segment'][segments[-1]][i]] = len(segments)-1 # assign segment index to last point
|
|
|
|
grainpoints.append([]) # start out blank for current grain
|
|
for p in sorted(points, key=points.get): # loop thru set of sorted points
|
|
grainpoints[-1].append([rcData['point'][p][0],rcData['point'][p][1]]) # append x,y of point
|
|
|
|
bestGuess = 0 # assume grain 0 as best guess
|
|
for i in range(int(xres*yres)): # walk through all points in xy plane
|
|
xtest = -xframe+((i%xres)+0.5)*dx # calculate coordinates
|
|
ytest = -yframe+(int(i/xres)+0.5)*dy
|
|
if(xtest < 0 or xtest > maxX): # check wether part of frame
|
|
if( ytest < 0 or ytest > maxY): # part of edges
|
|
fftdata['fftpoints'].append(frameindex+2) # append frameindex to result array
|
|
else: # part of xframe
|
|
fftdata['fftpoints'].append(frameindex) # append frameindex to result array
|
|
elif( ytest < 0 or ytest > maxY): # part of yframe
|
|
fftdata['fftpoints'].append(frameindex+1) # append frameindex to result array
|
|
else:
|
|
if inside(xtest,ytest,grainpoints[bestGuess]): # check best guess first
|
|
fftdata['fftpoints'].append(bestGuess+1)
|
|
else: # no success
|
|
for g in range(len(grainpoints)): # test all
|
|
if inside(xtest,ytest,grainpoints[g]):
|
|
fftdata['fftpoints'].append(g+1)
|
|
bestGuess = g
|
|
break
|
|
|
|
return fftdata
|
|
|
|
|
|
# ----------------------- MAIN -------------------------------
|
|
|
|
parser = OptionParser(option_class=extendedOption, usage='%prog [options] datafile[s]', description = """
|
|
Produce image, spectral geometry description, and (auto) Mentat procedure from TSL/OIM
|
|
reconstructed boundary file
|
|
|
|
""" + string.replace('$Id$','\n','\\n')
|
|
)
|
|
|
|
parser.add_option("-o", "--output", action='extend', dest='output', type='string', \
|
|
help="types of output [image,mentat,procedure,spectral]")
|
|
parser.add_option("-p", "--port", type="int",\
|
|
dest="port",\
|
|
help="Mentat connection port")
|
|
parser.add_option("-2", "--twodimensional", action="store_true",\
|
|
dest="twoD",\
|
|
help="twodimensional model [%default]")
|
|
parser.add_option("-s","--patchsize", type="float",\
|
|
dest="size",\
|
|
help="height of patch [%default]")
|
|
parser.add_option("-e", "--strain", type="float",\
|
|
dest="strain",\
|
|
help="final strain to reach in simulation [%default]")
|
|
parser.add_option("--rate", type="float",\
|
|
dest="strainrate",\
|
|
help="(engineering) strain rate to simulate")
|
|
parser.add_option("-N", "--increments", type="int",\
|
|
dest="increments",\
|
|
help="number of increments to take")
|
|
parser.add_option("-t", "--tolerance", type="float",\
|
|
dest="tolerance",\
|
|
help="relative tolerance of pixel positions to be swept")
|
|
parser.add_option("-m", "--mesh", choices=['dt_planar_trimesh','af_planar_trimesh','af_planar_quadmesh'],\
|
|
dest="mesh",\
|
|
help="algorithm and element type for automeshing [%default]")
|
|
parser.add_option("-x", "--xmargin", type="float",\
|
|
dest="xmargin",\
|
|
help="margin in x in units of patch size [%default]")
|
|
parser.add_option("-y", "--ymargin", type="float",\
|
|
dest="ymargin",\
|
|
help="margin in y in units of patch size [%default]")
|
|
parser.add_option("-r", "--resolution", type="int",\
|
|
dest="resolution",\
|
|
help="number of Fourier points/Finite Elements across patch size + x_margin [%default]")
|
|
parser.add_option("-z", "--extrusion", type="int",\
|
|
dest="extrusion",\
|
|
help="number of repetitions in z-direction [%default]")
|
|
parser.add_option("-i", "--imagesize", type="int",\
|
|
dest="imgsize",\
|
|
help="size of PNG image")
|
|
parser.add_option("-M", "--coordtransformation", type="float", nargs=4, \
|
|
dest="M",\
|
|
help="2x2 transformation from rcb to Euler coords ( = M . [x_rcb,y_rcb])")
|
|
parser.add_option("--scatter", type="float",\
|
|
dest="scatter",\
|
|
help="orientation scatter [%default]")
|
|
|
|
parser.set_defaults(output = [])
|
|
parser.set_defaults(size = 1.0)
|
|
parser.set_defaults(xmargin = 0.0)
|
|
parser.set_defaults(ymargin = 0.0)
|
|
parser.set_defaults(resolution = 64)
|
|
parser.set_defaults(extrusion = 2)
|
|
parser.set_defaults(imgsize = 512)
|
|
parser.set_defaults(M = [0.0,1.0,1.0,0]) # M_11, M_12, M_21, M_22. x,y in RCB is y,x of Eulers!!
|
|
parser.set_defaults(tolerance = 1.0e-3)
|
|
parser.set_defaults(scatter = 0.0)
|
|
parser.set_defaults(strain = 0.2)
|
|
parser.set_defaults(strainrate = 1.0e-3)
|
|
parser.set_defaults(increments = 200)
|
|
parser.set_defaults(mesh = 'dt_planar_trimesh')
|
|
parser.set_defaults(twoD = False)
|
|
|
|
(options, args) = parser.parse_args()
|
|
|
|
if not len(args):
|
|
parser.error('no boundary file specified')
|
|
|
|
try:
|
|
boundaryFile = open(args[0])
|
|
boundarySegments = boundaryFile.readlines()
|
|
boundaryFile.close()
|
|
except:
|
|
print 'unable to read boundary file "%s"'%args[0]
|
|
sys.exit(-1)
|
|
|
|
options.output = [s.lower() for s in options.output] # lower case
|
|
|
|
myName = os.path.splitext(args[0])[0]
|
|
print "\n%s\n"%myName
|
|
|
|
orientationData = rcbOrientationParser(boundarySegments)
|
|
rcData = rcbParser(boundarySegments,options.M,options.size,options.tolerance)
|
|
|
|
# ----- write image -----
|
|
|
|
if 'image' in options.output and options.imgsize > 0:
|
|
if ImageCapability:
|
|
image(myName,options.imgsize,options.xmargin,options.ymargin,rcData)
|
|
else:
|
|
print '...no image drawing possible (PIL missing)...'
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|
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# ----- write spectral geom -----
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|
|
|
if 'spectral' in options.output:
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|
fftdata = fftbuild(rcData, options.size, options.xmargin, options.ymargin, options.resolution, options.extrusion)
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|
|
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geomFile = open(myName+'_'+str(int(fftdata['resolution'][0]))+'.geom','w') # open geom file for writing
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geomFile.write('resolution a %i b %i c %i\n'%(fftdata['resolution'])) # write resolution
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geomFile.write('dimension x %f y %f z %f\n'%(fftdata['dimension'])) # write size
|
|
geomFile.write('homogenization 1\n') # write homogenization
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geomFile.write('\n'.join(map(str,fftdata['fftpoints']))+'\n') # write grain indexes, one per line
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|
geomFile.close() # close geom file
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|
|
|
print('assigned %i out of %i Fourier points.'%(len(fftdata['fftpoints']), int(fftdata['resolution'][0])*int(fftdata['resolution'][1])))
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|
|
|
|
|
# ----- write Mentat procedure -----
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|
|
|
if 'mentat' in options.output:
|
|
if MentatCapability:
|
|
rcData['offsetPoints'] = 1+4 # gage definition generates 4 points
|
|
rcData['offsetSegments'] = 1+4 # gage definition generates 4 segments
|
|
|
|
cmds = [\
|
|
init(),
|
|
sample(options.size,rcData['dimension'][1]/rcData['dimension'][0],12,options.xmargin,options.ymargin),
|
|
patch(options.size,options.resolution,options.mesh,rcData),
|
|
gage(options.mesh,rcData),
|
|
]
|
|
|
|
if not options.twoD:
|
|
cmds += [expand3D(options.size*(1.0+2.0*options.xmargin)/options.resolution*options.extrusion,options.extrusion),]
|
|
|
|
cmds += [\
|
|
cleanUp(options.size),
|
|
materials(),
|
|
initial_conditions(len(rcData['grain']),rcData['grainMapping']),
|
|
boundary_conditions(options.strainrate,options.size*(1.0+2.0*options.xmargin)/options.resolution*options.extrusion,\
|
|
options.size,rcData['dimension'][1]/rcData['dimension'][0],options.xmargin,options.ymargin),
|
|
loadcase(options.strain/options.strainrate,options.increments,0.01),
|
|
job(len(rcData['grain']),rcData['grainMapping'],options.twoD),
|
|
postprocess(),
|
|
["*identify_sets","*regen","*fill_view","*save_as_model %s yes"%(myName)],
|
|
]
|
|
|
|
outputLocals = {'log':[]}
|
|
if (options.port != None):
|
|
py_connect('',options.port)
|
|
output(cmds,outputLocals,'Mentat')
|
|
py_disconnect()
|
|
if 'procedure' in options.output:
|
|
output(outputLocals['log'],outputLocals,'Stdout')
|
|
else:
|
|
print '...no interaction with Mentat possible...'
|
|
|
|
|
|
# ----- write config data to file -----
|
|
|
|
if 'mentat' in options.output or 'spectral' in options.output:
|
|
output = ''
|
|
output += '\n\n<homogenization>\n' + \
|
|
'\n[SX]\n' + \
|
|
'type\tisostrain\n' + \
|
|
'Ngrains\t1\n' + \
|
|
'\n\n<microstructure>\n'
|
|
|
|
for i,grain in enumerate(rcData['grainMapping']):
|
|
output += '\n[grain %i]\n'%grain + \
|
|
'crystallite\t1\n' + \
|
|
'(constituent)\tphase 1\ttexture %i\tfraction 1.0\n'%(i+1)
|
|
if (options.xmargin > 0.0):
|
|
output += '\n[x-margin]\n' + \
|
|
'crystallite\t1\n' + \
|
|
'(constituent)\tphase 2\ttexture %i\tfraction 1.0\n'%(len(rcData['grainMapping'])+1)
|
|
if (options.ymargin > 0.0):
|
|
output += '\n[y-margin]\n' + \
|
|
'crystallite\t1\n' + \
|
|
'(constituent)\tphase 2\ttexture %i\tfraction 1.0\n'%(len(rcData['grainMapping'])+1)
|
|
if (options.xmargin > 0.0 and options.ymargin > 0.0):
|
|
output += '\n[margin edge]\n' + \
|
|
'crystallite\t1\n' + \
|
|
'(constituent)\tphase 2\ttexture %i\tfraction 1.0\n'%(len(rcData['grainMapping'])+1)
|
|
|
|
output += '\n\n<crystallite>\n' + \
|
|
'\n[fillMeIn]\n' + \
|
|
'\n\n<phase>\n' + \
|
|
'\n[patch]\n'
|
|
if (options.xmargin > 0.0 or options.ymargin > 0.0):
|
|
output += '\n[margin]\n'
|
|
|
|
output += '\n\n<texture>\n\n'
|
|
for grain in rcData['grainMapping']:
|
|
output += '\n[grain %i]\n'%grain + \
|
|
'(gauss)\tphi1\t%f\tphi\t%f\tphi2\t%f\tscatter\t%f\tfraction\t1.0\n'\
|
|
%(math.degrees(orientationData[grain-1][0]),math.degrees(orientationData[grain-1][1]),math.degrees(orientationData[grain-1][2]),options.scatter)
|
|
if (options.xmargin > 0.0 or options.ymargin > 0.0):
|
|
output += '\n[margin]\n' + \
|
|
'(random)\t\tscatter\t0.0\tfraction\t1.0\n'
|
|
|
|
configFile = open(myName+'.config','w')
|
|
configFile.write(output)
|
|
configFile.close()
|