Python colors.is_color_like函数代码示例

def validate_color(s):
    "return a valid color arg"
    try:
        if s.lower() == "none":
            return "None"
    except AttributeError:
        pass
    if is_color_like(s):
        return s
    stmp = "#" + s

    if is_color_like(stmp):
        return stmp
    # If it is still valid, it must be a tuple.
    colorarg = s
    msg = ""
    if s.find(",") >= 0:
        # get rid of grouping symbols
        stmp = "".join([c for c in s if c.isdigit() or c == "." or c == ","])
        vals = stmp.split(",")
        if len(vals) != 3:
            msg = "\nColor tuples must be length 3"
        else:
            try:
                colorarg = [float(val) for val in vals]
            except ValueError:
                msg = "\nCould not convert all entries to floats"

    if not msg and is_color_like(colorarg):
        return colorarg

    raise ValueError("%s does not look like a color arg%s" % (s, msg))

def validate_color(s):
    'return a valid color arg'
    try:
        if s.lower() == 'none':
            return 'None'
    except AttributeError:
        pass
    if is_color_like(s):
        return s
    stmp = '#' + s
    if is_color_like(stmp):
        return stmp
    # If it is still valid, it must be a tuple.
    colorarg = s
    msg = ''
    if s.find(',') >= 0:
        # get rid of grouping symbols
        stmp = ''.join([c for c in s if c.isdigit() or c == '.' or c == ','])
        vals = stmp.split(',')
        if len(vals) != 3:
            msg = '\nColor tuples must be length 3'
        else:
            try:
                colorarg = [float(val) for val in vals]
            except ValueError:
                msg = '\nCould not convert all entries to floats'

    if not msg and is_color_like(colorarg):
        return colorarg

    raise ValueError('%s does not look like a color arg%s' % (s, msg))

 def get(self):
     valuelist = []
     for index, (label, value) in enumerate(self.data):
         field = self.widgets[index]
         if label is None:
             # Separator / Comment
             continue
         elif tuple_to_qfont(value) is not None:
             value = field.get_font()
         elif (isinstance(value, six.string_types)
               or mcolors.is_color_like(value)):
             value = six.text_type(field.text())
         elif isinstance(value, (list, tuple)):
             index = int(field.currentIndex())
             if isinstance(value[0], (list, tuple)):
                 value = value[index][0]
             else:
                 value = value[index]
         elif isinstance(value, bool):
             value = field.checkState() == QtCore.Qt.Checked
         elif isinstance(value, float):
             value = float(str(field.text()))
         elif isinstance(value, int):
             value = int(field.value())
         elif isinstance(value, datetime.datetime):
             value = field.dateTime().toPyDateTime()
         elif isinstance(value, datetime.date):
             value = field.date().toPyDate()
         else:
             value = eval(str(field.text()))
         valuelist.append(value)
     return valuelist

    def WaitingtimesDistributions(self,waiting_times,rates,trajectory_index,linestyle,linewidth, marker,colors,title,xlabel,ylabel,is_legend,legend_location):
        """        
        Plots the waiting times for each reaction in the model. 
        Makes use of ObtainWaitingtimes to derive the waiting times out of the SSA output.
   
        Input: 
         - *waiting_times* (dict)
         - *rates* (list)
         - *trajectory_index* (integer)
         - *linestyle* (string)
         - *linewith* (float)    
         - *marker* (string)
         - *colors* (list)
         - *title* (string)
         - *xlabel* (string)
         - *ylabel* (string)
         - *is_legend* (boolean)
         - *legend_location* [default = 'upper right'] (string/integer)
        """
        plt.figure(self.plotnum)               
        if len(rates) == 1:
            j = trajectory_index
        else:
            j=0

        L_legend_names = []
        for r_id in rates:                        
            L_waiting_times = waiting_times[r_id]         # get list of waiting times for a given reaction
            if len(L_waiting_times) > 1:			      # At least 2 waiting times are necessary per reaction
                (x,y,nbins) = LogBin(L_waiting_times,1.5) # Create logarithmic bins (HARDCODED 1.5)
                
                if x != None:
                    if colors == None:              
                        if j >= len(self.colors):                  
                            j=0
                    elif isinstance(colors,list):
                        if j >= len(colors):
                            j=0
                    elif isinstance(colors,str):
                        colors = [colors]
                        j=0              
                    if colors == None:
                        plt.loglog(x,y,marker,ls = linestyle,lw=linewidth,color = self.colors[j])
                    else:
                        if clr.is_color_like(colors[j]):           
                            plt.loglog(x,y,marker,ls = linestyle,lw=linewidth,color = colors[j])
                        else:
                            print("*** WARNING ***: '{0}' is not recognized as a valid color code".format(colors[j]) )
                            plt.loglog(x,y,marker,ls = linestyle,lw=linewidth,color = self.colors[j])
                            colors = None                            
                    L_legend_names.append(r_id)
                    j+=1
        plt.title(title)
        plt.xlabel(xlabel)
        plt.ylabel(ylabel)
        if is_legend:
            plt.legend(L_legend_names,numpoints=1,frameon=True,loc=legend_location)

    def draw_merge_contour(self, color, idx=0):
        if is_color_like(color):
            color = hex2color(color)
        color = np.array(color)
        color = np.round(color*np.iinfo(self.dtype).max)
        ix, iy, _ = self.contours[idx]

        # shift contour from subimage to the last column
        xoff = (self._nsub-1-idx)*self.swidth
        self[ix+xoff, iy] = color

    def TimeSeries(self,data,npoints,datatype,labels,trajectory_index,linestyle,linewidth,marker,colors,title,xlabel,ylabel,is_legend,legend_location):      
        """        
        Tracks the propensities and/or species over time.

        Input: 
         - *data* (array)
         - *npoints* (integer)
         - *datatype* (list)
         - *labels* (list)
         - *trajectory_index* (integer)
         - *linestyle* (string)
         - *linewidth* (float)
         - *title* (string)
         - *xlabel* (string)
         - *ylabel* (string)
         - *is_legend* (boolean)       
        """
        plt.figure(self.plotnum)       
        datatype_indices = [labels.index(Id) for Id in datatype]
        
        data = getDataForTimeSimPlot(data,npoints,self.quiet)
       
        Arr_time = data[:,0]   
        if len(datatype) == 1:
            j = trajectory_index
        else:
            j=0

        for i in datatype_indices:
            y = data[:,i+1]          
            if colors == None:              
                if j >= len(self.colors):                  
                    j=0
            elif isinstance(colors,list):
                if j >= len(colors):
                    j=0
            elif isinstance(colors,str):
                colors = [colors]
                j=0             

            if colors == None:
                plt.plot(Arr_time,y,marker,ls = linestyle,lw = linewidth,color = self.colors[j])
            else:
                if clr.is_color_like(colors[j]):
                    plt.plot(Arr_time,y,marker,ls = linestyle,lw = linewidth,color = colors[j])
                else:
                    print("*** WARNING ***: '{0}' is not recognized as a valid color code".format(colors[j]) )
                    plt.plot(Arr_time,y,marker,ls = linestyle,lw = linewidth,color = self.colors[j])
                    colors = None
            j+=1
        if is_legend:
            plt.legend(datatype,numpoints=1,frameon=True,loc=legend_location)
        plt.title(title)
        plt.xlabel(xlabel) 
        plt.ylabel(ylabel)      

    def AverageTimeSeries(self,means,stds,time,nstd,datatype,labels,linestyle,linewidth,marker,ms,colors,title,xlabel,ylabel,is_legend,legend_location):
        """       
        Plots the average and standard deviation of datatype on a regular grid.

        Input:
         - *means* (array)
         - *stds* (array)
         - *time* (array)
         - *nstd* (float)
         - *datatype* (list)
         - *labels* (list)     
         - *linestyle* (string)
         - *linewidth* (float)
         - *marker* (string)
         - *ms* (float)
         - *colors* (list)       
         - *title* (string)
         - *xlabel* (string)
         - *ylabel* (string)
         - *is_legend* (boolean)
         - *legend_location* [default = 'upper right'] (string/integer)
        """ 
        assert nstd > 0, "Error: The number of STDs must be a value larger than zero"
        plt.figure(self.plotnum)
        datatype_indices = [labels.index(Id) for Id in datatype] 
        j=0
        for i in datatype_indices:
            if colors == None:              
                if j >= len(self.colors):                  
                    j=0
            elif isinstance(colors,list):
                if j >= len(colors):
                    j=0
            elif isinstance(colors,str):
                colors = [colors]
                j=0          
            
            # plot with y-axis error bars
            if colors == None:
                plt.errorbar(time,means[:,i],yerr = nstd*np.array(stds[:,i]),color = self.colors[j],ls = linestyle,lw=linewidth,marker = marker,ms=ms,label = labels[i]) 
            else:
                if clr.is_color_like(colors[j]):     
                    plt.errorbar(time,means[:,i],yerr = nstd*np.array(stds[:,i]),color = colors[j],ls = linestyle,lw=linewidth,marker = marker,ms=ms,label = labels[i])
                else:
                    print("*** WARNING ***: '{0}' is not recognized as a valid color code".format(colors[j]) )
                    plt.errorbar(time,means[:,i],yerr = nstd*np.array(stds[:,i]),color = self.colors[j],ls = linestyle,lw=linewidth,marker = marker,ms=ms,label = labels[i])
                    colors = None
            j+=1
        if is_legend:
            plt.legend(numpoints=1,frameon=True,loc=legend_location)
        plt.title(title)
        plt.xlabel(xlabel)
        plt.ylabel(ylabel)

 def Autocorrelations(self,lags,data,datatype,labels,trajectory_index,linestyle,linewidth,marker,colors,title,xlabel,ylabel,is_legend,legend_location):      
     """        
     Input:
      - *lags*
      - *data* (array)      
      - *datatype* (list) 
      - *labels* (list)
      - *trajectory_index* (integer)       
      - *linestyle* (string)
      - *linewidth* (float)
      - *marker* string)
      - *colors* (list)
      - *title* (string)
      - *xlabel* (string)
      - *ylabel* (string)
      - *is_legend* (boolean)
     """
     plt.figure(self.plotnum)
     datatype_indices = [labels.index(Id) for Id in datatype]
     if len(datatype) == 1:
         j = trajectory_index
     else:
         j=0          
     
     for i in datatype_indices:         
         if colors == None:              
             if j >= len(self.colors):                  
                 j=0
         elif isinstance(colors,list):
             if j >= len(colors):
                 j=0
         elif isinstance(colors,str):
             colors = [colors]
             j=0
                                 
         y = data[i][0:len(lags)]          
         if colors == None:
             plt.plot(lags,y,marker,ls = linestyle,lw = linewidth, color = self.colors[j])
         else:   
             if clr.is_color_like(colors[j]):             
                 plt.plot(lags,y,marker,ls = linestyle,lw = linewidth, color = colors[j])
             else:
                 print("*** WARNING ***: '{0}' is not recognized as a valid color code".format(colors[j]) )
                 plt.plot(lags,y,marker,ls = linestyle,lw = linewidth, color = self.colors[j]) 
                 colors = None
         j+=1 
     if is_legend:    
         plt.legend(datatype,numpoints=1,frameon=True,loc=legend_location)      
     plt.title(title)
     plt.xlabel(xlabel) 
     plt.ylabel(ylabel)

    def add_contour(self, position, contour, color):
        if is_color_like(color):
            color = hex2color(color)

        if color is None:
            color = hex2color(Colors.white)

        color = np.array(color)
        color = np.round(color*np.iinfo(self.dtype).max)

        # filter pixels that do not lie in the sub image
        contour = np.array(filter(
                lambda c: c[0]<self.swidth and c[1]<self.swidth, contour))
        contour = contour + np.array((position*self.swidth, 0))
        # rgb color according to dtype of the image
        self.contours.append((contour[:, 0], contour[:, 1], color))

    def AverageDistributionsCI(self,means,stds,nstd,datatype,labels,colors,title,xlabel,ylabel,is_legend,legend_location):
        """      
        Plots the average and standard deviation.

        Input:
         - *means* (nested list)
         - *stds* (nested list)
         - *nstd* (float)
         - *labels* (list)
         - *linestyle* (string)
         - *linewidth* (float)
         - *marker* (string)
         - *colors* (list)
         - *title* (string)
         - *xlabel* (string)
         - *ylabel* (string)
         - *is_legend* (boolean)
         - *legend_location* [default = 'upper right'] (string/integer)
        """  
        assert nstd > 0, "Error: The number of STDs must be a value larger than zero"      
        plt.figure(self.plotnum)
        datatype_indices = [labels.index(Id) for Id in datatype]           
        for i in datatype_indices:   
            L_s_amount = copy.copy(means[i][0])
            L_mu =  copy.copy(means[i][1])
            L_sigma =  copy.copy(stds[i][1])

            # Add an additional value
            L_s_amount.append(L_s_amount[-1]+1)
            L_mu.append(L_mu[-1])
            L_sigma.append(L_sigma[-1])

            X_i = []
            Y_i = []
            L_errors = []
            for j in range(len(L_s_amount)):
                if (not L_s_amount[j] == L_s_amount[0]) and (not L_s_amount[j] == L_s_amount[-1]):
                    X_i.append(L_s_amount[j])
                    Y_i.append(L_mu[j-1])
                    L_errors.append(L_sigma[j-1])
                X_i.append(L_s_amount[j])
                Y_i.append(L_mu[j])
                L_errors.append(L_sigma[j])
            X_e = np.concatenate([X_i, X_i[::-1]])
            Y_e = np.concatenate([np.array(Y_i) - nstd*np.array(L_errors) ,(np.array(Y_i) + nstd*np.array(L_errors))[::-1]])   
        
            if colors == None:              
                if j >= len(self.colors):                  
                    j=0
            elif isinstance(colors,list):
                if j >= len(colors):
                    j=0
            elif isinstance(colors,str):
                colors = [colors]
                j=0
            if colors == None:                         
                plt.fill(X_e-0.5,Y_e,  alpha=.25, ec='None', label='{0} STD confidence interval'.format(nstd),color = self.colors[j]) 
                plt.plot(np.array(X_i)-0.5,np.array(Y_i),color = self.colors[j])
            else:
                if clr.is_color_like(colors[j]):     
                    plt.fill(X_e-0.5,Y_e,  alpha=.25, ec='None', label='{0} STD confidence interval'.format(nstd),color = colors[j]) 
                    plt.plot(np.array(X_i)-0.5,np.array(Y_i),color = colors[j])
                else:
                    print("*** WARNING ***: '{0}' is not recognized as a valid color code".format(colors[j]) )
                    plt.fill(X_e-0.5,Y_e,  alpha=.25, ec='None', label='{0} STD confidence interval'.format(nstd),color = self.colors[j]) 
                    plt.plot(np.array(X_i)-0.5,np.array(Y_i),color = self.colors[j])      
                    colors = None
        if is_legend:
            plt.legend(numpoints=1,frameon=True,loc=legend_location)
        plt.xlabel(xlabel)
        plt.ylabel(ylabel)
        plt.title(title)        

def grey2rgb(image, color="#FFFFFF"):
    if is_color_like(color):
        color = hex2color(color)
    # be aware that color contains floats ranging from 0 to 1
    return np.dstack((image, image, image))*np.array(color)

 def setup(self):
     for label, value in self.data:
         if DEBUG:
             print("value:", value)
         if label is None and value is None:
             # Separator: (None, None)
             self.formlayout.addRow(QtGui.QLabel(" "), QtGui.QLabel(" "))
             self.widgets.append(None)
             continue
         elif label is None:
             # Comment
             self.formlayout.addRow(QtGui.QLabel(value))
             self.widgets.append(None)
             continue
         elif tuple_to_qfont(value) is not None:
             field = FontLayout(value, self)
         elif is_color_like(value):
             field = ColorLayout(to_qcolor(value), self)
         elif isinstance(value, (str, unicode)):
             field = QtGui.QLineEdit(value, self)
         elif isinstance(value, (list, tuple)):
             if isinstance(value, tuple):
                 value = list(value)
             selindex = value.pop(0)
             field = QtGui.QComboBox(self)
             if isinstance(value[0], (list, tuple)):
                 keys = [ key for key, _val in value ]
                 value = [ val for _key, val in value ]
             else:
                 keys = value
             field.addItems(value)
             if selindex in value:
                 selindex = value.index(selindex)
             elif selindex in keys:
                 selindex = keys.index(selindex)
             elif not isinstance(selindex, int):
                 print("Warning: '%s' index is invalid (label: " \
                                 "%s, value: %s)" % (selindex, label, value), file=STDERR)
                 selindex = 0
             field.setCurrentIndex(selindex)
         elif isinstance(value, bool):
             field = QtGui.QCheckBox(self)
             if value:
                 field.setCheckState(QtCore.Qt.Checked)
             else :
                 field.setCheckState(QtCore.Qt.Unchecked)
         elif isinstance(value, float):
             field = QtGui.QLineEdit(repr(value), self)
             field.setValidator(QtGui.QDoubleValidator(field))
             dialog = self.get_dialog()
             dialog.register_float_field(field)
             self.connect(field, QtCore.SIGNAL('textChanged(QString)'),
                          lambda text: dialog.update_buttons())
         elif isinstance(value, int):
             field = QtGui.QSpinBox(self)
             field.setRange(-1e9, 1e9)
             field.setValue(value)
         elif isinstance(value, datetime.datetime):
             field = QtGui.QDateTimeEdit(self)
             field.setDateTime(value)
         elif isinstance(value, datetime.date):
             field = QtGui.QDateEdit(self)
             field.setDate(value)
         else:
             field = QtGui.QLineEdit(repr(value), self)
         self.formlayout.addRow(label, field)
         self.widgets.append(field)

"""
======================
Link to other packages
======================

Use :mod:`sphinx_gallery` to link to other packages, like
:mod:`numpy`, :mod:`matplotlib.colors`, and :mod:`matplotlib.pyplot`.

FYI this gallery uses :obj:`sphinx_gallery.sorting.FileNameSortKey`.
"""

import numpy as np
from matplotlib.colors import is_color_like
import matplotlib
import matplotlib.pyplot as plt

from local_module import N  # N = 1000

t = np.arange(N) / float(N)
win = np.hanning(N)
print(is_color_like('r'))
plt.figure()
plt.plot(t, win, color='r')
plt.text(0, 1, 'png', size=40, va='top')
orig_dpi = 80. if matplotlib.__version__[0] < '2' else 100.
assert plt.rcParams['figure.dpi'] == orig_dpi
plt.rcParams['figure.dpi'] = 70.
assert plt.rcParams['figure.dpi'] == 70.

 def setup(self):
     for label, value in self.data:
         if label is None and value is None:
             # Separator: (None, None)
             self.formlayout.addRow(QtWidgets.QLabel(" "), QtWidgets.QLabel(" "))
             self.widgets.append(None)
             continue
         elif label is None:
             # Comment
             self.formlayout.addRow(QtWidgets.QLabel(value))
             self.widgets.append(None)
             continue
         elif tuple_to_qfont(value) is not None:
             field = FontLayout(value, self)
         elif (label.lower() not in BLACKLIST
               and mcolors.is_color_like(value)):
             field = ColorLayout(to_qcolor(value), self)
         elif isinstance(value, str):
             field = QtWidgets.QLineEdit(value, self)
         elif isinstance(value, (list, tuple)):
             if isinstance(value, tuple):
                 value = list(value)
             # Note: get() below checks the type of value[0] in self.data so
             # it is essential that value gets modified in-place.
             # This means that the code is actually broken in the case where
             # value is a tuple, but fortunately we always pass a list...
             selindex = value.pop(0)
             field = QtWidgets.QComboBox(self)
             if isinstance(value[0], (list, tuple)):
                 keys = [key for key, _val in value]
                 value = [val for _key, val in value]
             else:
                 keys = value
             field.addItems(value)
             if selindex in value:
                 selindex = value.index(selindex)
             elif selindex in keys:
                 selindex = keys.index(selindex)
             elif not isinstance(selindex, Integral):
                 warnings.warn(
                     "index '%s' is invalid (label: %s, value: %s)" %
                     (selindex, label, value), stacklevel=2)
                 selindex = 0
             field.setCurrentIndex(selindex)
         elif isinstance(value, bool):
             field = QtWidgets.QCheckBox(self)
             if value:
                 field.setCheckState(QtCore.Qt.Checked)
             else:
                 field.setCheckState(QtCore.Qt.Unchecked)
         elif isinstance(value, Integral):
             field = QtWidgets.QSpinBox(self)
             field.setRange(-1e9, 1e9)
             field.setValue(value)
         elif isinstance(value, Real):
             field = QtWidgets.QLineEdit(repr(value), self)
             field.setCursorPosition(0)
             field.setValidator(QtGui.QDoubleValidator(field))
             field.validator().setLocale(QtCore.QLocale("C"))
             dialog = self.get_dialog()
             dialog.register_float_field(field)
             field.textChanged.connect(lambda text: dialog.update_buttons())
         elif isinstance(value, datetime.datetime):
             field = QtWidgets.QDateTimeEdit(self)
             field.setDateTime(value)
         elif isinstance(value, datetime.date):
             field = QtWidgets.QDateEdit(self)
             field.setDate(value)
         else:
             field = QtWidgets.QLineEdit(repr(value), self)
         self.formlayout.addRow(label, field)
         self.widgets.append(field)

    def plot_segmentlist(self, segmentlist, y=None, height=.8, label=None,
                         collection=True, rasterized=None, **kwargs):
        """Plot a `~gwpy.segments.SegmentList` onto these axes

        Parameters
        ----------
        segmentlist : `~gwpy.segments.SegmentList`
            list of segments to display

        y : `float`, optional
            y-axis value for new segments

        collection : `bool`, default: `True`
            add all patches as a
            `~matplotlib.collections.PatchCollection`, doesn't seem
            to work for hatched rectangles

        label : `str`, optional
            custom descriptive name to print as y-axis tick label

        **kwargs
            any other keyword arguments acceptable for
            `~matplotlib.patches.Rectangle`

        Returns
        -------
        collection : `~matplotlib.patches.PatchCollection`
            list of `~matplotlib.patches.Rectangle` patches
        """
        # get colour
        facecolor = kwargs.pop('facecolor', kwargs.pop('color', '#629fca'))
        if is_color_like(facecolor):
            kwargs.setdefault('edgecolor', tint(facecolor, factor=.5))

        # get y
        if y is None:
            y = self.get_next_y()

        # build patches
        patches = [SegmentRectangle(seg, y, height=height, facecolor=facecolor,
                                    **kwargs) for seg in segmentlist]

        if collection:  # map to PatchCollection
            coll = PatchCollection(patches, match_original=patches,
                                   zorder=kwargs.get('zorder', 1))
            coll.set_rasterized(rasterized)
            coll._ignore = collection == 'ignore'
            coll._ypos = y
            out = self.add_collection(coll)
            # reset label with tex-formatting now
            #   matplotlib default label is applied by add_collection
            #   so we can only replace the leading underscore after
            #   this point
            if label is None:
                label = coll.get_label()
            coll.set_label(to_string(label))
        else:
            out = []
            for patch in patches:
                patch.set_label(label)
                patch.set_rasterized(rasterized)
                label = ''
                out.append(self.add_patch(patch))
        self.autoscale(enable=None, axis='both', tight=False)
        return out