Fixes Issue #2: preliminary support for xmgrace file creation
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fileio/__init__.py
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fileio/__init__.py
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31
fileio/bds_file_reader.py
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fileio/bds_file_reader.py
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import numpy as np
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import re
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from PyQt4.QtGui import QInputDialog
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class FileReader:
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@staticmethod
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def read_datafile( path ):
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# TODO analyze file (LF,MF, HF) and act accordingly
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data = np.loadtxt(path, skiprows=4)
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numpat = re.compile('\d+\.\d+')
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try:
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Temp = None
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for line in open(path).readlines():
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if re.search("Fixed", line) or re.search("Temp", line):
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print "Found line containing 'Fixed' or 'Temp':"
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print line
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Temp = float(re.search(numpat, line).group())
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print "Temperature found in file:", Temp
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break
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search_temp_in_filename = re.search('\d+\.\d+K', path)
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if search_temp_in_filename:
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Temp = float(search_temp_in_filename.group()[:-1])
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if Temp == None: raise ValueError
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except:
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Temp = QInputDialog.getDouble( "No temperature found in data set", "Temperature/K:", value=0.00)[0]
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# mask the data to values > 0 (loglog plot)
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mask = (data[:, 1] > 0) & (data[:, 2] > 0) # & (data[:,2]>1e-3) & (data[:,0] > 1e-2)
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_freq = data[mask, 0]
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_die_stor = data[mask, 1]
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_die_loss = data[mask, 2]
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return Temp, _die_loss, _die_stor, _freq
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168
fileio/gracedriver.py
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fileio/gracedriver.py
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import re
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import PyQt4.QtGui
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__author__ = 'markusro'
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import tempfile,os
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import numpy as np
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class GracePlot(object):
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def __init__(self):
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self.ls_map = {"None":0, "-":1, ":":2, "--":3, "-.":4 }
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# Symbols: 0:None 1:Circle 2:Square 3:Diamond 4:Triangle 5:up 6:left 7:down 8:right, 9:PLus 10:X 11:Star
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self.sym_map = {None:0, "None":0, "o":1, "s":2,
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"d":3, "D":4, "2":5,
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"v":6, "3":6, "4":7,"1":8,
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"+":8,"x":9,"*":10 }
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self.tmpfiles = []
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self.cmds = []
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self.color_map = {} # color map will pbe prepended to the final agr file
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self.data_counter = 0
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self.color_counter = 8 # keep first 8 colors already defined?
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def __del__(self):
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# take care of tmp files:
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for f in self.tmpfiles:
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os.remove(f)
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def plot(self, x, y, **kwds):
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# save data to temporary file
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tmp_fd, tmp_name = tempfile.mkstemp()
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self.tmpfiles.append(tmp_name)
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np.savetxt(tmp_name, np.array([x, y]).T)
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#tmp_fd.close()
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# read data in xmgrace
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self.cmds.append('READ NXY "%s"\n'%tmp_name)
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self.cmds.append('S%i SYMBOL SIZE 0.7\n'%(self.data_counter))
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#self.cmds.append('S%i SYMBOL FILL COLOR %i\n'%(self.data_counter, self.data_counter))
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self.cmds.append('S%i SYMBOL FILL PATTERN 1\n'%(self.data_counter))
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self.cmds.append('S%i SYMBOL 1\n'%(self.data_counter)) # No line
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if "label" in kwds.keys():
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label = kwds["label"]
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self.cmds.append('S%i LEGEND "%s"\n'%(self.data_counter, label))
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if "ls" in kwds.keys():
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ls = kwds["ls"]
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if ls in self.ls_map.keys():
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self.cmds.append('S%i LINE LINESTYLE %i\n'%(self.data_counter, self.ls_map[ls])) # Line
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if "sym" in kwds.keys():
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sym = kwds["sym"]
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if sym in self.sym_map.keys():
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self.cmds.append('S%i SYMBOL %i\n'%(self.data_counter, self.sym_map[sym]))
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if sym in ['+', 'x', '*']:
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self.cmds.append('S%i SYMBOL COLOR %i\n'%(self.data_counter, self.data_counter))
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else:
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self.cmds.append('S%i SYMBOL COLOR %i\n' % (self.data_counter, 1)) # vlack symbol outline
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else:
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print "Symbol not known: %s"%sym
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if "color" in kwds.keys():
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color = str(PyQt4.QtGui.QColor(kwds["color"]).getRgb()[:3])
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if color in self.color_map.keys():
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color_id = self.color_map[color][0]
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else:
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self.color_map[color] = [
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self.color_counter,
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"@MAP COLOR %i TO %s, \"qds%i\" \n"% (self.color_counter, color, self.color_counter)
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]
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color_id = self.color_counter
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self.color_counter += 1
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self.cmds.append('S%i SYMBOL FILL COLOR %i\n' % (self.data_counter, color_id))
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self.cmds.append('S%i LINE COLOR %i\n' % (self.data_counter, color_id))
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self.data_counter += 1
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def loglog(self, x,y, **kwds):
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self.cmds.append('YAXES SCALE LOGARITHMIC\n')
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self.cmds.append("YAXIS TICKLABEL FORMAT POWER\n")
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self.cmds.append("YAXIS TICKLABEL PREC 0\n")
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self.cmds.append('XAXES SCALE LOGARITHMIC\n')
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self.cmds.append("XAXIS TICKLABEL FORMAT POWER\n")
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self.cmds.append("XAXIS TICKLABEL PREC 0\n")
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self.plot(x, y, **kwds)
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def semilogx(self, x, y, **kwds):
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self.cmds.append('XAXES SCALE LOGARITHMIC\n')
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self.cmds.append("xAXIS TICKLABEL FORMAT POWER\n")
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self.cmds.append("xAXIS TICKLABEL PREC 0\n")
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self.plot(x, y, **kwds)
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def semilogy(self, x, y, **kwds):
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self.cmds.append('YAXES SCALE LOGARITHMIC\n')
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self.cmds.append("YAXIS TICKLABEL FORMAT POWER\n")
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self.cmds.append("YAXIS TICKLABEL PREC 0\n")
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self.plot(x, y, **kwds)
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def xlabel(self, label ):
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self.cmds.append('XAXIS LABEL "%s"\n'%label)
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pass
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def ylabel(self, label ):
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self.cmds.append('YAXIS LABEL "%s"\n'%label)
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pass
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def legend(self, on=True):
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if on:
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self.cmds.append('LEGEND ON\n')
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else:
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self.cmds.append('LEGEND OFF\n')
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def save(self, fname):
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self.cmds.append('AUTOSCALE\n')
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self.cmds.append('SAVEALL "%s"\n'%fname)
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# write cmds to tmpfile
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tmp_fd, tmp_name = tempfile.mkstemp()
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self.tmpfiles.append(tmp_name)
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tmp_file = open(tmp_name, 'w')
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tmp_file.writelines(self.cmds)
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tmp_file.close()
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# excecute tempraray xmgrace file to create final agr
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os.system("xmgrace -batch %s -hardcopy -nosafe -printfile tmp.tmp"%tmp_name)
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os.remove("tmp.tmp")
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# prepend color map to the new file
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with file(fname, 'r') as original_agr: data = original_agr.readlines()
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# get the last "@map color ..." line
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last_color_lineno = 0
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for i,line in enumerate(data):
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if line.lower().startswith("@map color"):
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last_color_lineno = i+1
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with file(fname, 'w') as new_agr:
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new_agr.writelines(data[:last_color_lineno])
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for color in self.color_map:
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new_agr.write(self.color_map[color][1])
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new_agr.writelines(data[last_color_lineno:])
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if __name__ == "__main__":
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print "Testing Grace driver"
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np.random.seed(1337) # make it reproducible
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nums = 30
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gr = GracePlot()
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t = np.linspace(0,1,nums)
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for i in xrange(30):
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gr.loglog(t, i + np.sin(2*np.pi * 3 * t + i*0.33 ) + 0.3*np.random.random(nums),
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label="label %i"%i,
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ls=gr.ls_map.keys()[i%(len(gr.ls_map))],
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sym=gr.sym_map.keys()[i%(len(gr.sym_map))],
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color="red"
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)
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gr.xlabel(r"xlabel / \xm\sl\N\0")
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gr.ylabel(r"ylabel / \xt\sS\N\0")
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gr.save("test.agr")
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print "created test.agr"
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os.system("xmgrace test.agr")
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print "deleting test.agr"
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#os.remove("test.agr")
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