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Edit File: legend.cpython-38.pyc
U ��]m� � @ sn d Z ddlZddlZddlmZ ddlmZ ddlmZmZ ddlm Z m Z ddl m Z m Z mZ ddlmZ dd lmZ dd lmZmZmZmZ dd lmZmZmZm Z m Z dd l m Z m Z m!Z! dd l m"Z"m#Z# ddl$m%Z%m&Z&m'Z'm(Z( ddl$m)Z) ddl*m+Z+m,Z,m-Z- ddl.m/Z/ G dd� de)�Z0dZ1ej2j3e1d� G dd� de �Z4d dd�Z5d!dd �Z6ddd �d d �Z7dS )"aO The legend module defines the Legend class, which is responsible for drawing legends associated with axes and/or figures. .. important:: It is unlikely that you would ever create a Legend instance manually. Most users would normally create a legend via the :meth:`~matplotlib.axes.Axes.legend` function. For more details on legends there is also a :doc:`legend guide </tutorials/intermediate/legend_guide>`. The Legend class can be considered as a container of legend handles and legend texts. Creation of corresponding legend handles from the plot elements in the axes or figures (e.g., lines, patches, etc.) are specified by the handler map, which defines the mapping between the plot elements and the legend handlers to be used (the default legend handlers are defined in the :mod:`~matplotlib.legend_handler` module). Note that not all kinds of artist are supported by the legend yet by default but it is possible to extend the legend handler's capabilities to support arbitrary objects. See the :doc:`legend guide </tutorials/intermediate/legend_guide>` for more information. � N)�cbook)�rcParams)r � docstring)�Artist�allow_rasterization)� silent_list� is_hashable�warn_deprecated)�FontProperties)�Line2D)�Patch� Rectangle�Shadow�FancyBboxPatch)�LineCollection�RegularPolyCollection�CircleCollection�PathCollection�PolyCollection)�Bbox�BboxBase�TransformedBbox)�BboxTransformTo�BboxTransformFrom)�HPacker�VPacker�TextArea� DrawingArea)�DraggableOffsetBox)�ErrorbarContainer� BarContainer� StemContainer� )�legend_handlerc @ s6 e Zd Zddd�Zdd� Zdd� Zd d � Zd d � Zd S )�DraggableLegendF�locc C s: || _ |dkr|| _n td| ��tj| ||j|d� dS )a� Wrapper around a `.Legend` to support mouse dragging. Parameters ---------- legend : `.Legend` The `.Legend` instance to wrap. use_blit : bool, optional Use blitting for faster image composition. For details see :ref:`func-animation`. update : {'loc', 'bbox'}, optional If "loc", update the *loc* parameter of the legend upon finalizing. If "bbox", update the *bbox_to_anchor* parameter. )r% �bbox�'update parameter '%s' is not supported.)�use_blitN)�legend�_update� ValueErrorr �__init__� _legend_box)�selfr) r( �update� r0 �3/usr/lib/python3/dist-packages/matplotlib/legend.pyr, 2 s � �zDraggableLegend.__init__c C s | j �|�S �N)r) �contains)r. r) Zevtr0 r0 r1 � artist_pickerL s z DraggableLegend.artist_pickerc C sF | � � }| jdkr | �|� n$| jdkr4| �|� ntd| j ��d S )Nr% r& r' )Zget_loc_in_canvasr* � _update_loc�_update_bbox_to_anchor� RuntimeErrorr/ )r. � loc_in_canvasr0 r0 r1 �finalize_offsetO s �z DraggableLegend.finalize_offsetc C sR | j �� }|jdks |jdkr4| j �d � | j �� }t|�}t|�|��| j _d S )Nr ) r) �get_bbox_to_anchor�width�height�set_bbox_to_anchorr �tuple�transform_point�_loc)r. r8 r& Z_bbox_transformr0 r0 r1 r5 Z s �zDraggableLegend._update_locc C s$ | j jj}|�|�}| j �|� d S r2 )r) �axesZ transAxesr? r= )r. r8 ZtrZ loc_in_bboxr0 r0 r1 r6 h s z&DraggableLegend._update_bbox_to_anchorN)Fr% )�__name__� __module__� __qualname__r, r4 r9 r5 r6 r0 r0 r0 r1 r$ 1 s r$ a� loc : str or pair of floats, default: :rc:`legend.loc` ('best' for axes, 'upper right' for figures) The location of the legend. The strings ``'upper left', 'upper right', 'lower left', 'lower right'`` place the legend at the corresponding corner of the axes/figure. The strings ``'upper center', 'lower center', 'center left', 'center right'`` place the legend at the center of the corresponding edge of the axes/figure. The string ``'center'`` places the legend at the center of the axes/figure. The string ``'best'`` places the legend at the location, among the nine locations defined so far, with the minimum overlap with other drawn artists. This option can be quite slow for plots with large amounts of data; your plotting speed may benefit from providing a specific location. The location can also be a 2-tuple giving the coordinates of the lower-left corner of the legend in axes coordinates (in which case *bbox_to_anchor* will be ignored). For back-compatibility, ``'center right'`` (but no other location) can also be spelled ``'right'``, and each "string" locations can also be given as a numeric value: =============== ============= Location String Location Code =============== ============= 'best' 0 'upper right' 1 'upper left' 2 'lower left' 3 'lower right' 4 'right' 5 'center left' 6 'center right' 7 'lower center' 8 'upper center' 9 'center' 10 =============== ============= bbox_to_anchor : `.BboxBase`, 2-tuple, or 4-tuple of floats Box that is used to position the legend in conjunction with *loc*. Defaults to `axes.bbox` (if called as a method to `.Axes.legend`) or `figure.bbox` (if `.Figure.legend`). This argument allows arbitrary placement of the legend. Bbox coordinates are interpreted in the coordinate system given by `bbox_transform`, with the default transform Axes or Figure coordinates, depending on which ``legend`` is called. If a 4-tuple or `.BboxBase` is given, then it specifies the bbox ``(x, y, width, height)`` that the legend is placed in. To put the legend in the best location in the bottom right quadrant of the axes (or figure):: loc='best', bbox_to_anchor=(0.5, 0., 0.5, 0.5) A 2-tuple ``(x, y)`` places the corner of the legend specified by *loc* at x, y. For example, to put the legend's upper right-hand corner in the center of the axes (or figure) the following keywords can be used:: loc='upper right', bbox_to_anchor=(0.5, 0.5) ncol : integer The number of columns that the legend has. Default is 1. prop : None or :class:`matplotlib.font_manager.FontProperties` or dict The font properties of the legend. If None (default), the current :data:`matplotlib.rcParams` will be used. fontsize : int or float or {'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large'} Controls the font size of the legend. If the value is numeric the size will be the absolute font size in points. String values are relative to the current default font size. This argument is only used if `prop` is not specified. numpoints : None or int The number of marker points in the legend when creating a legend entry for a `.Line2D` (line). Default is ``None``, which will take the value from :rc:`legend.numpoints`. scatterpoints : None or int The number of marker points in the legend when creating a legend entry for a `.PathCollection` (scatter plot). Default is ``None``, which will take the value from :rc:`legend.scatterpoints`. scatteryoffsets : iterable of floats The vertical offset (relative to the font size) for the markers created for a scatter plot legend entry. 0.0 is at the base the legend text, and 1.0 is at the top. To draw all markers at the same height, set to ``[0.5]``. Default is ``[0.375, 0.5, 0.3125]``. markerscale : None or int or float The relative size of legend markers compared with the originally drawn ones. Default is ``None``, which will take the value from :rc:`legend.markerscale`. markerfirst : bool If *True*, legend marker is placed to the left of the legend label. If *False*, legend marker is placed to the right of the legend label. Default is *True*. frameon : None or bool Control whether the legend should be drawn on a patch (frame). Default is ``None``, which will take the value from :rc:`legend.frameon`. fancybox : None or bool Control whether round edges should be enabled around the :class:`~matplotlib.patches.FancyBboxPatch` which makes up the legend's background. Default is ``None``, which will take the value from :rc:`legend.fancybox`. shadow : None or bool Control whether to draw a shadow behind the legend. Default is ``None``, which will take the value from :rc:`legend.shadow`. framealpha : None or float Control the alpha transparency of the legend's background. Default is ``None``, which will take the value from :rc:`legend.framealpha`. If shadow is activated and *framealpha* is ``None``, the default value is ignored. facecolor : None or "inherit" or a color spec Control the legend's background color. Default is ``None``, which will take the value from :rc:`legend.facecolor`. If ``"inherit"``, it will take :rc:`axes.facecolor`. edgecolor : None or "inherit" or a color spec Control the legend's background patch edge color. Default is ``None``, which will take the value from :rc:`legend.edgecolor` If ``"inherit"``, it will take :rc:`axes.edgecolor`. mode : {"expand", None} If `mode` is set to ``"expand"`` the legend will be horizontally expanded to fill the axes area (or `bbox_to_anchor` if defines the legend's size). bbox_transform : None or :class:`matplotlib.transforms.Transform` The transform for the bounding box (`bbox_to_anchor`). For a value of ``None`` (default) the Axes' :data:`~matplotlib.axes.Axes.transAxes` transform will be used. title : str or None The legend's title. Default is no title (``None``). title_fontsize: str or None The fontsize of the legend's title. Default is the default fontsize. borderpad : float or None The fractional whitespace inside the legend border. Measured in font-size units. Default is ``None``, which will take the value from :rc:`legend.borderpad`. labelspacing : float or None The vertical space between the legend entries. Measured in font-size units. Default is ``None``, which will take the value from :rc:`legend.labelspacing`. handlelength : float or None The length of the legend handles. Measured in font-size units. Default is ``None``, which will take the value from :rc:`legend.handlelength`. handletextpad : float or None The pad between the legend handle and text. Measured in font-size units. Default is ``None``, which will take the value from :rc:`legend.handletextpad`. borderaxespad : float or None The pad between the axes and legend border. Measured in font-size units. Default is ``None``, which will take the value from :rc:`legend.borderaxespad`. columnspacing : float or None The spacing between columns. Measured in font-size units. Default is ``None``, which will take the value from :rc:`legend.columnspacing`. handler_map : dict or None The custom dictionary mapping instances or types to a legend handler. This `handler_map` updates the default handler map found at :func:`matplotlib.legend.Legend.get_legend_handler_map`. )�_legend_kw_docc @ s� e Zd ZdZdddddddd d d d d � ZdZdd� ZejdWdd��Z dd� Z dd� Z dd� Z e e e �Zdd� Zed d � �ZdXd d �Zee�� ee�� ee�� ee�� e e� � e e� � e e�!� e"ejej#d �e$e�%� e&e�'� e(e�)� i Z*e+d!d"� �Z,e+d#d$� �Z-e+d%d&� �Z.d'd(� Z/e0d)d*� �Z1dYd+d,�Z2d-d.� Z3d/d0� Z4d1d2� Z5d3d4� Z6d5d6� Z7d7d8� Z8d9d:� Z9dZd;d<�Z:d=d>� Z;d[d?d@�Z<dAdB� Z=dCdD� Z>dEdF� Z?dGdH� Z@d\dIdJ�ZAdKdL� ZBd]dMdN�ZCdOdP� ZDd^dSdT�ZEdUdV� ZFdS )_�Legendz6 Place a legend on the axes at location loc. r r" � � � � � � � � � ) �best� upper rightz upper leftz lower leftz lower right�rightz center leftz center rightz lower centerz upper center�centerc C s dS )NrF r0 �r. r0 r0 r1 �__str__U s zLegend.__str__NTc , C sv ddl m} ddlm}! t�| � | dkrR| dk r@t| d�| _q�ttd d�| _n6t | t �r�tf | �| _d| kr�| j� td � n| | _| j� � | _ g | _g | _d| _| | _t� }"dD ]2}#|"|# dkr�td |# }$n|"|# }$t| |#|$� q�~"g g }%}&t||�D ]J\}'}(t |'t��r4|'�d ��r4t�d �|(|'�� n|%�|'� |&�|(� �q |%|& }}t|�}t |�d k �rpd }|| _ | j dk�r�t d| ��| dk�r�t �!dddg�| _"n t �#| �| _"| j$t | j"� d })t �%| j"|)�d| j$� | _"d| _&t || ��rd| _'|| _(| �)|j*� n&t ||!��r0d| _'| �)|� nt+d��|| _,|dk| _-|dk�rptd }| j'�sp|dk�rpd}t |t��r�|| j.k�r�| j'�r�tj/dd�|d�0| j.��d� d}n"tj/dd �|d�0| j.��d� d }n | j.| }| j'�s|dk�rtj/dd d� d }|| _1| �2| | � |dk�r*td }|d k�r<td }|dk�rNtd! }|d k�r`td" }t3d#d$d$||| j dd%�| _4|dk�r�td& }|�r�| j4j5d'dd(d)� n| j4j5d*dd+� | �6| j4� | | _7| dk�r�td, | _7| �8|||� |dk�r |�r | �9� �:d � n| �9� �:td- � n| �9� �:|� | j-}*| �;|� |*| _-|dk�rTtd. }t|d�}+| j<||+d/� d| _=dS )0aC Parameters ---------- parent : `~matplotlib.axes.Axes` or `.Figure` The artist that contains the legend. handles : sequence of `.Artist` A list of Artists (lines, patches) to be added to the legend. labels : sequence of strings A list of labels to show next to the artists. The length of handles and labels should be the same. If they are not, they are truncated to the smaller of both lengths. Other Parameters ---------------- %(_legend_kw_doc)s Notes ----- Users can specify any arbitrary location for the legend using the *bbox_to_anchor* keyword argument. bbox_to_anchor can be an instance of BboxBase(or its derivatives) or a tuple of 2 or 4 floats. See :meth:`set_bbox_to_anchor` for more detail. The legend location can be specified by setting *loc* with a tuple of 2 floats, which is interpreted as the lower-left corner of the legend in the normalized axes coordinate. r )�Axes)�FigureN)�sizezlegend.fontsizerX ) � numpoints� markerscale�shadow� columnspacing� scatterpoints� handleheight� borderpad� labelspacing� handlelength� handletextpad� borderaxespadzlegend.�_zVThe handle {!r} has a label of {!r} which cannot be automatically added to the legend.rG r" z numpoints must be > 0; it was %dg �?g �?g �?TFz,Legend needs either Axes or Figure as parentz legend.loc)r rP rQ z3.1zuUnrecognized location {!r}. Falling back on 'best'; valid locations are {} This will raise an exception %(removal)s.z )�messagez}Unrecognized location {!r}. Falling back on 'upper right'; valid locations are {} 'This will raise an exception %(removal)s.z�Automatic legend placement (loc='best') not implemented for figure legend. Falling back on 'upper right'. This will raise an exception %(removal)s.zlegend.facecolorZinheritzaxes.facecolorzlegend.edgecolorzaxes.edgecolor)� rf g �?)Zxyr; r< � facecolor� edgecolorZmutation_scaleZsnapzlegend.fancybox�roundg�������?)�padZ rounding_sizeZsquare)rj zlegend.frameonzlegend.framealphazlegend.title_fontsize)�prop)>Zmatplotlib.axesrV Zmatplotlib.figurerW r r, r rk r � isinstance�dictZset_sizeZget_size_in_points� _fontsize�texts� legendHandles�_legend_title_box�_custom_handler_map�locals�setattr�zip�str� startswithr �_warn_external�format�append�list�len�_ncolrY r+ �np�arrayZ_scatteryoffsetsZasarrayr] Ztiler- �isaxesrA � set_figure�figure� TypeError�parent�_loc_used_default�codesr �join�_moder= r � legendPatchZ set_boxstyle�_set_artist_props� _drawFrame�_init_legend_box� get_frameZ set_alpha�_set_loc� set_title� _draggable),r. r� �handles�labelsr% rY rZ � markerfirstr] Zscatteryoffsetsrk �fontsizer_ r` ra r^ rb rc r\ �ncol�modeZfancyboxr[ �titleZtitle_fontsizeZ framealpharh rg Zbbox_to_anchorZbbox_transformZframeon� handler_maprV rW Z locals_view�name�valueZ_labZ_hand�label�handleZrepsZtmpZtpropr0 r0 r1 r, X s K � �� �� �� � � � zLegend.__init__c C s, |� | j� | jr| j|_|�| �� � dS )zF Set the boilerplate props for artists added to axes. N)r� r� r� rA Z set_transform� get_transform)r. �ar0 r0 r1 r� V s zLegend._set_artist_propsc C s$ d| _ || _d| _| j�| j� d S )NFT)r� � _loc_real�staler- Z set_offset� _findoffset)r. r% r0 r0 r1 r� a s zLegend._set_locc C s | j S r2 )r� rT r0 r0 r1 �_get_locj s zLegend._get_locc C s� | j dkr | �|||�\}}np| j tj�� krZt�dd||�}| �| j || �� |�\}}n4| j \} } | �� }|j |j | |j |j | }}|| || fS )z%Helper function to locate the legend.r ) r@ �_find_best_positionrF r� �valuesr � from_bounds�_get_anchored_bboxr: �x0r; �y0r< ) r. r; r< �xdescent�ydescent�renderer�x�yr& ZfxZfyr0 r0 r1 r� o s � "zLegend._findoffsetc C s� | � � s dS |�d� |�| j�}| jdkrVd| j| j | }| j�| � � j | � | j� |�}| j � |j|j|j |j� | j �|� | jr�| jr�t| j dd�}|�|� | j �|� | j�|� |�d� d| _dS )z+Draw everything that belongs to the legend.Nr) )�expandrG ���F)Z get_visibleZ open_group�points_to_pixelsrn r� rc r_ r- Z set_widthr: r; �get_window_extentr� Z set_boundsr� r� r< Zset_mutation_scaler� r[ r �drawZ close_groupr� )r. r� r� rj r& r[ r0 r0 r1 r� � s* � z Legend.drawc C s |dkr| j S |�| j �S dS )zm Return the approximate height of the text. This is used to place the legend handle. N)rn r� �r. r� r0 r0 r1 �_approx_text_height� s zLegend._approx_text_height)Z update_funcc C s | j S )zF A class method that returns the default handler map. ��_default_handler_map)�clsr0 r0 r1 �get_default_handler_map� s z Legend.get_default_handler_mapc C s || _ dS )z@ A class method to set the default handler map. Nr� �r� r� r0 r0 r1 �set_default_handler_map� s z Legend.set_default_handler_mapc C s | j �|� dS )zC A class method to update the default handler map. N)r� r/ r� r0 r0 r1 �update_default_handler_map� s z!Legend.update_default_handler_mapc C s. | � � }| jr&|�� }|�| j� |S |S dS )z) Return the handler map. N)r� rr �copyr/ )r. Zdefault_handler_mapZhmr0 r0 r1 �get_legend_handler_map� s z Legend.get_legend_handler_mapc C s^ z | | W S t tfk r" Y nX t|��� D ](}z| | W S tk rV Y q0X q0dS )a Return a legend handler from *legend_handler_map* that corresponds to *orig_handler*. *legend_handler_map* should be a dictionary object (that is returned by the get_legend_handler_map method). It first checks if the *orig_handle* itself is a key in the *legend_handler_map* and return the associated value. Otherwise, it checks for each of the classes in its method-resolution-order. If no matching key is found, it returns ``None``. N)r� �KeyError�type�mro)�legend_handler_map� orig_handleZ handle_typer0 r0 r1 �get_legend_handler� s zLegend.get_legend_handlerc sv �j � g }g }g }tdd�jd�}d��� �jd }��� �j | } ��� } t||�D ]�\} } ��| | �} | dkr�t� d� | �� |� d� q\t | |ddd �}t �j� | d |d �}|� |j� |� | ��| � |�� |� ||f� q\|�r^t�jt|��}tt|�|�\}}|| }|d g| |g| }t�d gt�|�dd� g�}t||�}ng }g }|D ]�\}}� ��fdd�|||| � D �}��r�|d �� d �d� n|d �� d �d� ��r�dnd}|� td �j� ||d�� �qj�j dk�rdnd} �j � } t d | d| |d��_ t d��_ t�j!� �j� d�j �j gd��_"�j"�#�j$� |�_%|�_&dS )z� Initialize the legend_box. The legend_box is an instance of the OffsetBox, which is packed with legend handles and texts. Once packed, their location is calculated during the drawing time. �baseline�left)ZverticalalignmentZhorizontalalignmentZfontpropertiesgffffff�?gffffff�?Nz�Legend does not support {!r} instances. A proxy artist may be used instead. See: http://matplotlib.org/users/legend_guide.html#creating-artists-specifically-for-adding-to-the-legend-aka-proxy-artistsT)Z textpropsZmultilinebaselineZminimumdescentrf )r; r< r� r� r" r ���c s6 g | ].\}}t d �j� �r$||gn||gdd��qS )r r� )rj �sep�children�align)r rb )�.0�h�t�r� r� r. r0 r1 � <listcomp>U s ��z+Legend._init_legend_box.<locals>.<listcomp>FrR )rj r� r� r� r� Zfixed)rj r� r� r� r� � rS )'rn rm rk r� r^ r� ru r� r rx ry rz r r ra �_textZ legend_artist�minr} r| �divmodr~ � concatenateZcumsum� get_childrenZset_minimumdescentr r` r� r\ r Z_legend_handle_boxrq r_ r- r� r� ro rp ) r. r� r� r� Z text_listZ handle_listZhandles_and_labelsZ label_propZdescentr< r� r� ZlabZhandlerZtextboxZ handleboxr� ZnrowsZ num_largecolZ num_smallcolZ rows_per_colZ start_idxsZcolsZ columnboxZi0ZdiZ itemBoxesZ alignmentr� r� r0 r� r1 r� � s� � �� � � � �� � ��zLegend._init_legend_boxc C s< | j s t�| j}g }g }g }|jD ]6}t|t�s4t�|�� }|�� }|�|�}|� |� q"|j D ]V}t|t �srt�t|t �r�|� � } |� |�� �| �� q`|�� } |� |�� �| �� q`|jD ]6}|�� \} } } } t| �r�| �| �D ]} |� | � q�q�zt�dd� |D ��}W n tk �r. t�g �}Y nX ||||gS )a{ Returns list of vertices and extents covered by the plot. Returns a two long list. First element is a list of (x, y) vertices (in display-coordinates) covered by all the lines and line collections, in the legend's handles. Second element is a list of bounding boxes for all the patches in the legend's handles. c S s g | ] }|j �qS r0 )�vertices)r� �lr0 r0 r1 r� � s z,Legend._auto_legend_data.<locals>.<listcomp>)r� �AssertionErrorr� �linesrl r Zget_pathr� Ztransform_pathrz �patchesr r Zget_data_transformZget_bboxZ transformedZ get_extents� collectionsZ_prepare_pointsr| � transformr~ r� r+ r )r. �ax�bboxesr� �offsetsr� �pathZtransZtpathr� Z transOffsetZhoffsets�paths�offsetr� r0 r0 r1 �_auto_legend_dataw s8 zLegend._auto_legend_datac C s | � |� dS )z^ Set draw frame to b. Parameters ---------- b : bool N)� set_frame_on�r. �br0 r0 r1 � draw_frame� s zLegend.draw_framec C s( g }| j r|�| j � |�| �� � |S )z Return a list of child artists.)r- rz r� )r. r� r0 r0 r1 r� � s zLegend.get_childrenc C s | j S )zV Return the `~.patches.Rectangle` instances used to frame the legend. )r� rT r0 r0 r1 r� � s zLegend.get_framec C s dd� | j D �S )z:Return a list of `~.lines.Line2D` instances in the legend.c S s g | ]}t |t�r|�qS r0 )rl r �r� r� r0 r0 r1 r� � s z$Legend.get_lines.<locals>.<listcomp>)rp rT r0 r0 r1 � get_lines� s zLegend.get_linesc C s t ddd� | jD ��S )z;Return a list of `~.patches.Patch` instances in the legend.r c S s g | ]}t |t�r|�qS r0 )rl r r� r0 r0 r1 r� � s �z&Legend.get_patches.<locals>.<listcomp>)r rp rT r0 r0 r1 � get_patches� s �zLegend.get_patchesc C s t d| j�S )z7Return a list of `~.text.Text` instances in the legend.ZText)r ro rT r0 r0 r1 � get_texts� s zLegend.get_textsc C s| | j j�|� |r.| j j�d� | j �d� n| j j�d� | j �d� |dk rrt|t�rdtf |�}| j j�|� d| _dS )zk Set the legend title. Fontproperties can be optionally set with *prop* parameter. TFN) rq r� Zset_textZ set_visiblerl rm r Zset_fontpropertiesr� )r. r� rk r0 r0 r1 r� � s zLegend.set_titlec C s | j jS )z1Return the `.Text` instance for the legend title.)rq r� rT r0 r0 r1 � get_title� s zLegend.get_titlec C s |dkr| j j}| jj|d�S )z Return extent of the legend.N)r� )r� Z_cachedRendererr- r� r� r0 r0 r1 r� � s zLegend.get_window_extentc C s | j �|�S )a� Like `.Legend.get_window_extent`, but uses the box for the legend. Parameters ---------- renderer : `.RendererBase` instance renderer that will be used to draw the figures (i.e. ``fig.canvas.get_renderer()``) Returns ------- `.BboxBase` : containing the bounding box in figure pixel co-ordinates. )r- r� r� r0 r0 r1 � get_tightbbox� s zLegend.get_tightbboxc C s | j S )z*Get whether the legend box patch is drawn.)r� rT r0 r0 r1 � get_frame_on s zLegend.get_frame_onc C s || _ d| _dS )zt Set whether the legend box patch is drawn. Parameters ---------- b : bool TN)r� r� r� r0 r0 r1 r� s zLegend.set_frame_onc C s | j dkr| jjS | j S dS )z4Return the bbox that the legend will be anchored to.N)�_bbox_to_anchorr� r& rT r0 r0 r1 r: s zLegend.get_bbox_to_anchorc C s� |dkrd| _ dS t|t�r$|| _ nZz t|�}W n$ tk rT tdt|� ��Y nX |dkrr|d |d ddg}tj|� | _ |dkr�t | j j �}t | j |�| _ d| _ dS )ab Set the bbox that the legend will be anchored to. *bbox* can be - A `.BboxBase` instance - A tuple of ``(left, bottom, width, height)`` in the given transform (normalized axes coordinate if None) - A tuple of ``(left, bottom)`` where the width and height will be assumed to be zero. Nz Invalid argument for bbox : %srG r r" T)r� rl r r| r� r+ rv r r� r r� r& r r� )r. r& r� r� r0 r0 r1 r= s$ �zLegend.set_bbox_to_anchorc C s� |t dd�kst�t d�\ }}}}} } } } } }}|d|d|d| d| d| d| d| d |d |d i }|| }|�| j�}|�| j | �}|j||d �}|j|jfS ) a� Place the *bbox* inside the *parentbbox* according to a given location code. Return the (x,y) coordinate of the bbox. - loc: a location code in range(1, 11). This corresponds to the possible values for self._loc, excluding "best". - bbox: bbox to be placed, display coordinate units. - parentbbox: a parent box which will contain the bbox. In display coordinates. r" � ZNEZNWZSWZSE�E�W�S�N�C)� container) �ranger� r� rn Zpaddedrc Zanchoredr� r� )r. r% r& Z parentbboxr� ZBESTZURZULZLLZLR�RZCLZCRZLCZUCr� Z anchor_coefs�cr� r� Z anchored_boxr0 r0 r1 r� 9 s6 � zLegend._get_anchored_bboxc s �j s t���� \}}}}�jr8|jd dkr8t�d� t�dd||�� |dkrr� ��fdd�t dt �j ��D �}g } t |�D ]|\} \} } t�| | ||��d} �� |��� |� ��|� t�fdd �|D �� } | dkr�| | f S | �| | | | ff� q~t| �\}}\} } | | fS ) z� Determine the best location to place the legend. *consider* is a list of ``(x, y)`` pairs to consider as a potential lower-left corner of the legend. All are display coords. r i@ zGCreating legend with loc="best" can be slow with large amounts of data.Nc s g | ]}�� |� ��� ���qS r0 )r� r: )r� r� )r& r� r. r0 r1 r� p s ��z.Legend._find_best_position.<locals>.<listcomp>r" c 3 s | ]}|j � d d�V qdS )F)ZfilledN)Zintersects_bbox)r� �line)� legendBoxr0 r1 � <genexpr> s �z-Legend._find_best_position.<locals>.<genexpr>)r� r� r� r� �shaper rx r r� r� r| r� � enumerateZcount_containsZcount_overlaps�sumrz r� )r. r; r< r� ZconsiderZvertsr� r� r� Z candidates�idxr� r� Zbadnessrd r0 )r& r� r� r. r1 r� \ s: ���� �� zLegend._find_best_positionc C s | j �|�S r2 )r� r3 )r. Zeventr0 r0 r1 r3 � s zLegend.containsFr% c C s@ |r | j dkr:t| ||d�| _ n| j dk r4| j �� d| _ | j S )a� Enable or disable mouse dragging support of the legend. Parameters ---------- state : bool Whether mouse dragging is enabled. use_blit : bool, optional Use blitting for faster image composition. For details see :ref:`func-animation`. update : {'loc', 'bbox'}, optional The legend parameter to be changed when dragged: - 'loc': update the *loc* parameter of the legend - 'bbox': update the *bbox_to_anchor* parameter of the legend Returns ------- If *state* is ``True`` this returns the `~.DraggableLegend` helper instance. Otherwise this returns ``None``. N)r/ )r� r$ Z disconnect)r. �stater( r/ r0 r0 r1 � set_draggable� s � zLegend.set_draggablec C s | j dk S )z@Return ``True`` if the legend is draggable, ``False`` otherwise.N)r� rT r0 r0 r1 � get_draggable� s zLegend.get_draggable) NNNTNNNNNNNNNNNr" NNNNNNNNNNNN)N)T)N)N)N)N)Fr% )GrB rC rD �__doc__r� ZzorderrU r Zdedent_interpdr, r� r� r� �propertyr@ r� r r� r� r! r# Z HandlerStemr ZHandlerErrorbarr Z HandlerLine2Dr Z HandlerPatchr ZHandlerLineCollectionr Z HandlerRegularPolyCollectionr ZHandlerCircleCollectionr Zupdate_from_first_childr> Z HandlerTupler ZHandlerPathCollectionr ZHandlerPolyCollectionr� � classmethodr� r� r� r� � staticmethodr� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r: r= r� r� r3 r r r0 r0 r0 r1 rF A s� � � ~ " � � x4 ## - !rF c c s� g }| D ]R}||j |j |j |j 7 }t|d�r|jD ] }||j |j |j |j 7 }q8qt�� }|dk r~|�� }|� |� tj }|D ]$}|� � }|dkr�|||�r�|V q�dS )zU Return a generator of artists that can be used as handles in a legend. � parasitesNZ _nolegend_) r� r� r� Z containers�hasattrr rF r� r� r/ r� � get_label) �axsr� Zhandles_originalr� Zaxxr� Z has_handlerr� r� r0 r0 r1 �_get_legend_handles� s. �� �� r c C sJ g }g }t | |�D ].}|�� }|r|�d�s|�|� |�|� q||fS )zA Return handles and labels for legend, internal method. rd )r r rw rz )r r� r� r� r� r� r0 r0 r1 �_get_legend_handles_labels� s r )r� r� c O s< t �t�}|�di �pi }d}|dk s.|dk r<|r<t�d� |rX|rXtt||�� \}}n�|dk rx|dkrxdd� |D �}n�|dk r�|dkr�dd� tt| |�|�D �}n�t|�dkr�t | |�\}}|s�|� d � nbt|�d kr�|\}d d� tt| |�|�D �}n4t|�d k�r(|dd � \}}|d d� }nt d ��||||fS )z� Get the handles and labels from the calls to either ``figure.legend`` or ``axes.legend``. ``axs`` is a list of axes (to get legend artists from) r� r0 NzMYou have mixed positional and keyword arguments, some input may be discarded.c S s g | ] }|� � �qS r0 )r )r� r� r0 r0 r1 r� � s z&_parse_legend_args.<locals>.<listcomp>c S s g | ] \}}|�qS r0 r0 �r� r� r� r0 r0 r1 r� � s r z.No handles with labels found to put in legend.r" c S s g | ] \}}|�qS r0 r0 r r0 r0 r1 r� s rG z Invalid arguments to legend.) �loggingZ getLoggerrB �getr rx ru r r| r Zwarningr� )r r� r� �args�kwargs�logZhandlersZ extra_argsr0 r0 r1 �_parse_legend_args� s6 � �r )N)N)8r r Znumpyr~ Z matplotlibr r r Zmatplotlib.artistr r Zmatplotlib.cbookr r r Zmatplotlib.font_managerr Zmatplotlib.linesr Zmatplotlib.patchesr r r r Zmatplotlib.collectionsr r r r r Zmatplotlib.transformsr r r r r Zmatplotlib.offsetboxr r r r r Zmatplotlib.containerr r r! r� r# r$ rE Zinterpdr/ rF r r r r0 r0 r0 r1 �<module> s> ? 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