import os, sys,numpy import wx from dataFitting import Data1D, Theory1D from danse.common.plottools.plottables import Data2D from DataLoader.loader import Loader def choose_data_file(parent, location=None): path = None if location==None: location = os.getcwd() l = Loader() cards = l.get_wildcards() wlist = '|'.join(cards) dlg = wx.FileDialog(parent, "Choose a file", location, "", wlist, wx.OPEN) if dlg.ShowModal() == wx.ID_OK: path = dlg.GetPath() mypath = os.path.basename(path) dlg.Destroy() return path def load_ascii_1D(path): """ Load a 1D ascii file, with errors """ if path and os.path.isfile(path): file_x = numpy.zeros(0) file_y = numpy.zeros(0) file_dy = numpy.zeros(0) file_dx = numpy.zeros(0) input_f = open(path,'r') buff = input_f.read() lines = buff.split('\n') has_dy = False has_dx = False for line in lines: try: toks = line.split() x = float(toks[0]) y = float(toks[1]) if len(toks)==3: has_dy = True errdy = float(toks[2]) else: errdy = 0.0 if len(toks)==4: has_dx = True errdx = float(toks[3]) else: errdx = 0.0 file_x = numpy.append(file_x, x) file_y = numpy.append(file_y, y) file_dy = numpy.append(file_dy, dyerr) file_dx = numpy.append(file_dx, dxerr) except: print "READ ERROR", line if has_dy==False: file_dy = None if has_dx==False: file_dx = None return file_x, file_y, file_dy, file_dx return None, None, None, None def plot_data(parent, path): """ Use the DataLoader loader to created data to plot. @param path: the path of the data to load """ from sans.guicomm.events import NewPlotEvent, StatusEvent from DataLoader.loader import Loader #Instantiate a loader L = Loader() #Recieves data try: output=L.load(path) except: wx.PostEvent(parent, StatusEvent(status="Problem loading file: %s" % sys.exc_value)) return if output==None: msg="Could not open this page" wx.PostEvent(parent, StatusEvent(status=msg)) return filename = os.path.basename(path) if not output.__class__.__name__=="list": ## smearing info try: dxl = output.dxl dxw = output.dxw except: dxl = None dxw = None ## data 's name if output.filename==None: output.filename=str(filename) ## Creating a Data2D with output if hasattr(output,'data'): new_plot = Data2D(image=output.data,err_image=output.err_data, xmin=output.xmin,xmax=output.xmax, ymin=output.ymin,ymax=output.ymax) new_plot.x_bins=output.x_bins new_plot.y_bins=output.y_bins ##Creating Data1D with output else: ##dy values checked dy= output.dy if dy ==None: dy= numpy.zeros(len(output.y)) msg="Loading 1D data: " wx.PostEvent(parent, StatusEvent(status= "%s %s"%(msg, output.filename))) new_plot = Data1D(x=output.x, y=output.y, dx=output.dx, dy= dy, dxl=dxl, dxw=dxw) ## source will request in dataLoader .manipulation module new_plot.source=output.source ## name of the data allow to differentiate data when plotted name= output.filename new_plot.name = name ## allow to highlight data when plotted new_plot.interactive = True ## when 2 data have the same id override the 1 st plotted new_plot.id = name ## info is a reference to output of dataloader that can be used ## to save data 1D as cansas xml file new_plot.info= output ## detector used by dataLoader.manipulation module new_plot.detector =output.detector ## If the data file does not tell us what the axes are, just assume... new_plot.xaxis(output._xaxis,output._xunit) new_plot.yaxis(output._yaxis,output._yunit) ##group_id specify on which panel to plot this data new_plot.group_id = name new_plot.is_data =True ##post data to plot wx.PostEvent(parent, NewPlotEvent(plot=new_plot, title=str(name))) ## the output of the loader is a list , some xml files contain more than one data else: i=1 for item in output: try: dx=item.dx dxl=item.dxl dxw=item.dxw except: dx=None dxl=None dxw=None dy = item.dy if dy ==None: dy= numpy.zeros(len(item.y)) new_plot = Data1D(x=item.x,y=item.y,dx=dx,dy=item.dy,dxl=dxl,dxw=dxw) new_plot.source=item.source name= str(item.run[0]) new_plot.name = name new_plot.interactive = True new_plot.detector =item.detector # If the data file does not tell us what the axes are, just assume... new_plot.xaxis(item._xaxis,item._xunit) new_plot.yaxis(item._yaxis,item._yunit) new_plot.group_id = name new_plot.id = name new_plot.info= item new_plot.is_data =True if hasattr(item,"title"): title= item.title else: title= name wx.PostEvent(parent, NewPlotEvent(plot=new_plot, title=str(title))) i+=1