Python pylab.cla函数代码示例

def plot_fft_brams():
    import pylab
    run = True
    
    # turn on live updating
    pylab.ion()
    # plot the power in log scale
    pylab.yscale('log')
    
    # get an initial power spectrum and plot the power lines as rectangles
    fftscope_power = get_fft_brams_power()
    fftscope_power_line=pylab.bar(range(0,numchannels),fftscope_power)
    
    pylab.ylim(1,1000000)
    
    # plot until an interrupt is received
    # for i in range(1,10):
    while(run):
        try:
            # read in a new spectrum
            fftscope_power = get_fft_brams_power()
            
            # update the rectangles based on the new power spectrum
            for j in range(0,numchannels):
                fftscope_power_line[j].set_height(fftscope_power[j])
            #update the plot
            pylab.draw()
        except KeyboardInterrupt:
            run = False
    
    # after stopping the liveupdate leave the plot up until the user is done with it
    raw_input('Press enter to quit: ')
            
    pylab.cla() 

    def plot(self, frame, position, offset):

        global plot

        if plot:
            fname = "/tmp/autoguider.fits"
            if os.path.exists(fname):
                os.remove(fname)
            frame.save(fname)
            img = fits.getdata(fname)
            hdr = fits.getheader(fname)
            py.figure(1)
            py.cla()
            py.imshow(img, origin="lower", interpolation="nearest", vmax=np.mean(img) * 1.1, cmap=py.cm.gray)
            py.plot(position["XWIN_IMAGE"], position["YWIN_IMAGE"], "b+")
            py.plot(position["XWIN_IMAGE"] + offset["X"], position["YWIN_IMAGE"] + offset["Y"], "rx")
            py.plot(position["XWIN_IMAGE"] - hdr["offsetY"] + 1, position["YWIN_IMAGE"] - hdr["offsetX"], "r.")
            err = np.sqrt(((-hdr["offsetY"] + 1 - offset["X"]) ** 2) + ((-hdr["offsetX"] - offset["Y"]) ** 2))

            py.text(
                -3,
                -3,
                "Offset: (%.2f/%.2f) px, Calculated: (%.2f/%.2f) px, Error: %3.2f"
                % (-hdr["offsetY"] + 1, -hdr["offsetX"], offset["X"], offset["Y"], err),
            )
            py.savefig(os.path.join(SYSTEM_CONFIG_DIRECTORY, "autoguider_%05i.png") % self.index)
            py.show()
            self.index += 1

def PlotGrids(gs, grids=None, drawnow=True):
	"""
	Plot the grids, each on a separate subplot if there are more than one, to be sure of the
	row and column coordinates inferred for each numbered electrode.
	
	NB: requires installation of the matplotlib python package (including the pylab module)
		for plotting.
	"""###

	import pylab
	each = EachGrid(gs, grids=grids)
	ngrids = len(each)
	for rows in range(int(ngrids**0.5), 0, -1):
		if ngrids % rows == 0: cols = ngrids / rows; break
	else: rows = int(ngrids**0.5); cols = int(math.ceil(ngrids/float(rows)))
	if ngrids != 1: pylab.clf()
	for i,(gridname,g) in enumerate(each):
		if ngrids != 1: pylab.subplot(rows, cols, i+1)
		pylab.cla()
		xcoords,ycoords = [],[]
		for trode in g:
			row,col,val = trode.localRowIndex,trode.localColumnIndex,trode.localNumber
			xcoords.append(col); ycoords.append(row)
			pylab.text(col, row, str(val), horizontalalignment='center', verticalalignment='center')
		pylab.xlim(min(xcoords)-1, max(xcoords)+1)
		pylab.ylim(max(ycoords)+1, min(ycoords)-1)
		pylab.grid('on')
		pylab.title(gridname)
	if drawnow:
		pylab.draw()
		pylab.show()

def do_plots_c(Ud, Unew):
    """ plot Ud,new and Ud with zoom on the bug """
    pylab.clf()
    pylab.cla()

    f = pylab.figure()
    f.text(.5, .95, r"$U_{\rm d}$ (left) and $U_{\rm d, new}$ (right) ",
           horizontalalignment='center')

    pylab.subplot(221)
    pylab.imshow(Ud[0])
    pylab.ylabel("# of cells", size=8)

    pylab.subplot(223)
    pylab.imshow(Ud[1])
    pylab.xlim(1, 32)
    pylab.xlabel("# of cells", size=8)
    pylab.ylabel("# of cells", size=8)

    pylab.subplot(222)
    pylab.imshow(Unew[0])
    pylab.ylabel("# of cells", size=8)

    pylab.subplot(224)
    pylab.imshow(Unew[1])
    pylab.xlim(1, 32)
    pylab.xlabel("# of cells", size=8)
    pylab.ylabel("# of cells", size=8)

    pylab.savefig("plots/item_c_Udnew.png")

def scan():
    pylab.ion()
    pylab.figure(1)
    
    
    with Communicate('', None, debug=True) as serial:
        serial.timeout = 0.0001
        camera = Camera()
        camera.setupmeasure()
        
        controller = Controller(serial)
        controller.setupscan()
        
        out = []
        for x,y in controller.scan():
            camera.update()
            camera.interact()
            
            z = camera.measure()
            out.append([x,y,z])
            
            if camera.status == 'quit':
                break
            camera.show()
            
            if len(out) > 0:
                pylab.cla()
                tmp = zip(*out)
                sc = pylab.scatter(tmp[0],tmp[1],s=tmp[2], c=tmp[2], vmin=0, vmax=400)
                print '{: 8.3f} {: 8.3f} {: 8.3f}'.format(x,y,z)
            
        pylab.ioff()
        pylab.show()

def plotDC(vp,block,trial):
    ''' plot gaze during drift correction'''
    from Preprocess import readEyelink
    plt.interactive(False)
#    vp=1
#    from readETData import readEyelink
#    for b in range(4,23):
#        print 'block ', b
#        data=readEyelink(vp,b)
#        for i in range(0,len(data)):
    b=block;i=trial
    data=readEyelink(vp,b)
    d=data[i]
    gg=d.getGaze(phase=3)
    plt.plot(gg[:,0],gg[:,1],'g--')
    plt.plot(gg[:,0],gg[:,2],'r--')
    plt.plot(gg[:,0],gg[:,4],'b--')
    plt.plot(gg[:,0],gg[:,5],'k--')
    d.extractBasicEvents()
    d.driftCorrection(jump=manualDC(vp,b,i))
    gg=d.getGaze(phase=3)
    plt.plot(gg[:,0],gg[:,1],'g')
    plt.plot(gg[:,0],gg[:,2],'r')
    plt.plot(gg[:,0],gg[:,4],'b')
    plt.plot(gg[:,0],gg[:,5],'k')
    plt.plot([gg[0,0],gg[-1,0]],[0,0],'k')
    plt.plot(d.dcfix,[-0.45,-0.45],'k',lw=2)
    plt.grid()
    plt.ylim([-0.5,0.5])
    plt.legend(['left x','left y','right x','right y'])
    plt.savefig(PATH+'dc'+os.path.sep+'vp%03db%02dtr%02d'%(vp,b,i))
    plt.cla()

def draw_hist_cdf(data,fig=None,nbins=None,subpl=None,nohist=False,**figargs):
    '''input data is a list of dicts with keys: data,histcolor,plotline
    '''

    bins = None

    if fig: pylab.figure(fig,**figargs)
    if subpl: pylab.subplot(subpl)
    
    results = []
    for d in data:
        if bins is not None:
            n,bins,patches=pylab.hist(d['data'],bins=bins,normed=1,fc=histcolors[d['plotline'][0]])
        elif nbins is not None:
            n,bins,patches=pylab.hist(d['data'],bins=nbins,normed=1,fc=histcolors[d['plotline'][0]])
        else:
            n,bins,patches=pylab.hist(d['data'],normed=1,fc=histcolors[d['plotline'][0]])
        results.append(n)

    if nohist:
        pylab.cla()
    else:
        pylab.twinx()

    for i,d in enumerate(data):
        y = pylab.plot(bins,numpy.cumsum(results[i])/sum(results[i]), d['plotline'], linewidth=2)

def plotPhaseSpace(b, aTheta, aOmega, t, power, k):
    pylab.clf()
    pylab.cla()

    label = str(b)

    pylab.subplot(221)
    pylab.plot(aTheta, aOmega, color="m", lw=2)
    pylab.xlabel(r"$\theta$ (radians) ", fontsize=10)
    pylab.ylabel('$\omega$ (radians/seconds)', fontsize=10)
    pylab.grid(True)

    pylab.subplot(222)
    pylab.plot(t, aTheta, color="g", lw=2)
    pylab.ylabel(r"$\theta$ (radians)", fontsize=10)
    pylab.xlabel('t (seconds)', fontsize=10)
    pylab.grid(True)

    pylab.subplot(223)
    pyplot.grid(True)
    pyplot.plot(k, power, color="c", lw=2)
    pyplot.ylabel("|F(k)$|^{2}$", fontsize=10)
    pyplot.xlabel(r"$\nu_k$ ($s^{-1}$)", fontsize=10)

    pylab.subplot(224)
    pyplot.yscale('log')
    pyplot.plot(2.0 * numpy.pi * k, power, color="b", lw=1)
    pylab.xlim(0, 6)
    pyplot.grid(True)
    pyplot.xlabel(r"$\nu_k$ ($s^{-1}$)", fontsize=10)
    pyplot.ylabel("log |F(k)$|^{2}$", fontsize=10)

    pylab.savefig("plots/b-%s_phase_space.png" % (label))

    return 0

def main():
    filenames = glob.glob("*.dat")
    filenames = sort(filenames) #yeah, python is easy

    N = len(filenames)
    picture = zeros((N,N))

    pylab.cla()
    stepcount = 1 
    for i in filenames:
        file = open(i)
        data = array(file.read().strip().split(" "))

        #put the data into the 2D picture array
        for j in range(N):
   #         print data[j]==str(1), " dataj ", type(data[j])
            if data[j] == str(1):
                picture[0:stepcount,j] = data[j]

        pylab.imshow(picture)
        
        fname = re.sub("dat", "png", i)
        pylab.savefig(fname)

        stepcount += 1
        print i

    make_pngs_into_an_avi(.5)

    os.system("rm *dat")
    os.system("rm *png")

    return

def plot_fft_brams(new_pasp):

    run = True

    pylab.ion()
    pylab.cla()
    pylab.yscale("log")

    # read in initial data from the fft brams
    fftscope_power = new_pasp.get_fft_brams_power()
    # set up bars for each pasp channel
    fftscope_power_line = pylab.bar(range(0, new_pasp.numchannels), fftscope_power)

    pylab.ylim(1, 1000000)

    # plot forever
    # for i in range(1,10):
    while run:
        try:
            fftscope_power = new_pasp.get_fft_brams_power()

            # update the rectangles
            for j in range(0, new_pasp.numchannels):
                fftscope_power_line[j].set_height(fftscope_power[j])
            pylab.draw()
        except KeyboardInterrupt:
            run = False

    # after receiving an interrupt wait before closing the plot
    raw_input("Press enter to quit: ")

    pylab.cla()

def plot_adc_brams(new_pasp):

    run = True

    pylab.ion()
    # pylab.yscale('log')

    # read in the adc data
    adcscope_pol1, adcscope_pol2 = new_pasp.get_adc_brams(100)
    print adcscope_pol1
    pylab.cla()
    adcscope_power_line, = pylab.plot(adcscope_pol1)

    # while(run):
    """
    for i in range(1,10):
        try:
            fftscope_power = get_fft_brams_power()
            fftscope_power_line.set_ydata(fftscope_power)
            pylab.draw()

        except KeyboardInterrupt:
            run = False
    """

    raw_input("Press enter to quit: ")

    pylab.cla()

def twoDimOrderPlot(outpath, base_name, title, obj_name, base_filename, order_num, data, x):
    pl.figure('2d order image', facecolor='white', figsize=(8, 5))
    pl.cla()
    pl.title(title + ', ' + base_name + ", order " + str(order_num), fontsize=14)
    pl.xlabel('wavelength($\AA$)', fontsize=12)
    pl.ylabel('row (pixel)', fontsize=12)
    #pl.imshow(img, aspect='auto')
    #pl.imshow(data, vmin=0, vmax=1024, aspect='auto')
    
    pl.imshow(exposure.equalize_hist(data), origin='lower', 
                  extent=[x[0], x[-1], 0, data.shape[0]], aspect='auto')      
#     from matplotlib import colors
#     norm = colors.LogNorm(data.mean() + 0.5 * data.std(), data.max(), clip='True')
#     pl.imshow(data, norm=norm, origin='lower',
#                   extent=[x[0], x[-1], 0, data.shape[0]], aspect='auto')               
    pl.colorbar()
    pl.set_cmap('jet')
#     pl.set_cmap('Blues_r')
    fn = constructFileName(outpath, base_name, order_num, base_filename)
    pl.savefig(fn)
    log_fn(fn)
    pl.close()
    
#     np.save(fn[:fn.rfind('.')], data)
    
    return

def draw():
    pl.cla()
    nodeSize=[1000*net.in_degree(n) for n in nx.nodes(net)]
    nx.draw(net, pos = positions, node_color = [net.node[i]['id'] for i in net.nodes_iter()], with_labels = True, edge_color = 'c', cmap = pl.cm.RdBu, vmin = 0, vmax = 1,node_size=nodeSize, alpha=0.75)
    pl.axis('image')
    pl.title('t = ' + str(time))
    plt.show() 

def graph(toKeep):
    """Used to display the graphs. Text will be shown before hand as
    the graphs take time to generate"""
    global firstTime

    #Display some text stating that graphs are being generated 
    if toKeep == TwelveHours:
        displayText('Creating', 35, 1,(200,200,1),True)
        displayText('12 Hour Graph', 32, 2,(150,150,255), False)
    elif toKeep == TwentyFourHours:
        displayText('Creating', 35, 1,(200,200,1), True)
        displayText('24 Hour Graph', 32, 2,(150,150,255), False)
    elif toKeep == OneWeek:
        displayText('Creating', 35, 1,(200,200,1), True)
        displayText('One Week Graph', 28, 2,(150,150,255), False)
    pygame.display.flip()

    #Get temperature and time data from data file
    temp = genfromtxt('temperature_logging', dtype=None, usecols=(0), skip_header = lines - toKeep)
    timecaptured = genfromtxt('temperature_logging', dtype=None, usecols=(1), skip_header = lines - toKeep)

    #Site the size of the font for the axis
    for label in ax.get_xticklabels():
        label.set_fontsize(8)
    for label in ax.get_yticklabels():
        label.set_fontsize(8)

    #Create xaxis labels and only show every 12th or 96th
    xlabels = range(toKeep)
    if toKeep == OneWeek:
        pylab.xticks(xlabels[::96], [v[:5:] for v in timecaptured[::96]])
    else:
        pylab.xticks(xlabels[::12], [v[11:16] for v in timecaptured[::12]])

    #Plot the graph
    pylab.plot(temp,linewidth=2, antialiased=True)

    #Change some colours
    ax.patch.set_facecolor('#FFFFCC')
    ax.patch.set_alpha(0.5)

    #Rotate the text in the xaxis
    fig.autofmt_xdate(rotation=90)
    #Set the yaxsis limits
    pylab.ylim(0,40)

    #Save the graph as an image and the re-open it, rotate it and then display to TFT.
    pylab.savefig('gp.png', facecolor=fig.get_facecolor(),bbox_inches='tight', dpi=80,pad_inches=0.03)
    pil_im = Image.open('gp.png')
    pil_out = pil_im.rotate(-90)
    pil_out.save("gp.png")
    img = pygame.image.load('gp.png')
    screen.blit(img,(0,0))
    pygame.display.flip()

    #Clear graph data in preparation for next plot
    pylab.cla()

    #Reset the firstTime Variable
    firstTime = 0

def draw(figure):
    global resources, time, theWorld, cmap, files
    PL.cla()
    
    cmap.set_under()
    PL.pcolormesh(theWorld.foraging_resources, cmap = cmap, vmin=0,
                  vmax=W.max_resource)
    PL.axis('scaled')
    PL.hold(True)
    xyp = zip(*[theWorld.hh_locations[hh] for hh in theWorld.households])
    xy = [list(t) for t in xyp]
    
    if len(xy)>0:
        x = [i+0.5 for i in xy[0]]
        y = [i+0.5 for i in xy[1]]
        lineage = [hh.lineage for hh in (theWorld.households)]
        hh_size = [20*hh.size() for hh in (theWorld.households)]
        PL.scatter(y, x, c = lineage, s=hh_size, vmin=0, vmax=W.starting_agents, cmap = plt.get_cmap('hsv'))
        message = r't = {0}     Pop.: {1}     HHs: {2}    max HHs: {3}'
        PL.title(message.format(time, theWorld.population, len(theWorld.households), max(lineage))) 
    PL.hold(False)
    figure.tight_layout()
    if MOVIES:
        fname = dirName+('\\_temp%05d.png'%time)
        figure.savefig(fname)
        files.append(fname)
    drawPlots()