Python FancyBboxPatch.draw方法代码示例

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class Legend(Artist):
    """
    Place a legend on the axes at location loc.  Labels are a
    sequence of strings and loc can be a string or an integer
    specifying the legend location

    The location codes are::

      'best'         : 0, (only implemented for axis legends)
      '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,

    loc can be a tuple of the noramilzed coordinate values with
    respect its parent.

    """


    codes = {'best'         : 0, # only implemented for axis legends
             '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,
             }


    zorder = 5
    def __str__(self):
        return "Legend"

    def __init__(self, parent, handles, labels,
                 loc = None,
                 numpoints = None,     # the number of points in the legend line
                 markerscale = None,   # the relative size of legend markers vs. original
                 scatterpoints = 3,    # TODO: may be an rcParam
                 scatteryoffsets=None,
                 prop = None,          # properties for the legend texts

                 # the following dimensions are in axes coords
                 pad = None,           # deprecated; use borderpad
                 labelsep = None,      # deprecated; use labelspacing
                 handlelen = None,     # deprecated; use handlelength
                 handletextsep = None, # deprecated; use handletextpad
                 axespad = None,       # deprecated; use borderaxespad

                 # spacing & pad defined as a fraction of the font-size
                 borderpad = None,     # the whitespace inside the legend border
                 labelspacing=None, #the vertical space between the legend entries
                 handlelength=None, # the length of the legend handles
                 handleheight=None, # the height of the legend handles
                 handletextpad=None, # the pad between the legend handle and text
                 borderaxespad=None, # the pad between the axes and legend border
                 columnspacing=None, # spacing between columns

                 ncol=1, # number of columns
                 mode=None, # mode for horizontal distribution of columns. None, "expand"

                 fancybox=None, # True use a fancy box, false use a rounded box, none use rc
                 shadow = None,
                 title = None, # set a title for the legend
                 bbox_to_anchor = None, # bbox that the legend will be anchored.
                 bbox_transform = None, # transform for the bbox
                 frameon = None, # draw frame
                 handler_map = None,
                 ):
        """
        - *parent* : the artist that contains the legend
        - *handles* : a list of artists (lines, patches) to be added to the legend
        - *labels* : a list of strings to label the legend

        Optional keyword arguments:

        ================   ==================================================================
        Keyword            Description
        ================   ==================================================================
        loc                a location code
        prop               the font property
        markerscale        the relative size of legend markers vs. original
        numpoints          the number of points in the legend for line
        scatterpoints      the number of points in the legend for scatter plot
        scatteryoffsets    a list of yoffsets for scatter symbols in legend
        frameon            if True, draw a frame around the legend. If None, use rc
        fancybox           if True, draw a frame with a round fancybox.  If None, use rc
        shadow             if True, draw a shadow behind legend
        ncol               number of columns
        borderpad          the fractional whitespace inside the legend border
#.........这里部分代码省略.........

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class PaddedBox(OffsetBox):
    def __init__(self, child, pad=None, draw_frame=False, patch_attrs=None):
        """
        *pad* : boundary pad

        .. note::
          *pad* need to given in points and will be
          scale with the renderer dpi, while *width* and *hight*
          need to be in pixels.
        """

        super(PaddedBox, self).__init__()

        self.pad = pad
        self._children = [child]

        self.patch = FancyBboxPatch(
            xy=(0.0, 0.0), width=1., height=1.,
            facecolor='w', edgecolor='k',
            mutation_scale=1, #self.prop.get_size_in_points(),
            snap=True
            )

        self.patch.set_boxstyle("square",pad=0)

        if patch_attrs is not None:
            self.patch.update(patch_attrs)

        self._drawFrame =  draw_frame


    def get_extent_offsets(self, renderer):
        """
        update offset of childrens and return the extents of the box
        """

        dpicor = renderer.points_to_pixels(1.)
        pad = self.pad * dpicor

        w, h, xd, yd = self._children[0].get_extent(renderer)

        return w + 2*pad, h + 2*pad, \
               xd+pad, yd+pad, \
               [(0, 0)]


    def draw(self, renderer):
        """
        Update the location of children if necessary and draw them
        to the given *renderer*.
        """

        width, height, xdescent, ydescent, offsets = self.get_extent_offsets(renderer)

        px, py = self.get_offset(width, height, xdescent, ydescent, renderer)

        for c, (ox, oy) in zip(self.get_visible_children(), offsets):
            c.set_offset((px+ox, py+oy))

        self.draw_frame(renderer)

        for c in self.get_visible_children():
            c.draw(renderer)

        #bbox_artist(self, renderer, fill=False, props=dict(pad=0.))

    def update_frame(self, bbox, fontsize=None):
        self.patch.set_bounds(bbox.x0, bbox.y0,
                              bbox.width, bbox.height)

        if fontsize:
            self.patch.set_mutation_scale(fontsize)

    def draw_frame(self, renderer):
        # update the location and size of the legend
        bbox = self.get_window_extent(renderer)
        self.update_frame(bbox)

        if self._drawFrame:
            self.patch.draw(renderer)

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class AnchoredOffsetbox(OffsetBox):
    """
    An offset box placed according to the legend location
    loc. AnchoredOffsetbox has a single child. When multiple children
    is needed, use other OffsetBox class to enlose them.  By default,
    the offset box is anchored against its parent axes. You may
    explicitly specify the bbox_to_anchor.
    """

    zorder = 5 # zorder of the legend

    def __init__(self, loc,
                 pad=0.4, borderpad=0.5,
                 child=None, prop=None, frameon=True,
                 bbox_to_anchor=None,
                 bbox_transform=None,
                 **kwargs):
        """
        loc is a string or an integer specifying the legend location.
        The valid  location codes are::

        '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,

        pad : pad around the child for drawing a frame. given in
          fraction of fontsize.

        borderpad : pad between offsetbox frame and the bbox_to_anchor,

        child : OffsetBox instance that will be anchored.

        prop : font property. This is only used as a reference for paddings.

        frameon : draw a frame box if True.

        bbox_to_anchor : bbox to anchor. Use self.axes.bbox if None.

        bbox_transform : with which the bbox_to_anchor will be transformed.

        """

        super(AnchoredOffsetbox, self).__init__(**kwargs)

        self.set_bbox_to_anchor(bbox_to_anchor, bbox_transform)
        self.set_child(child)

        self.loc = loc
        self.borderpad=borderpad
        self.pad = pad

        if prop is None:
            self.prop=FontProperties(size=rcParams["legend.fontsize"])
        elif isinstance(prop, dict):
            self.prop=FontProperties(**prop)
            if "size" not in prop:
                self.prop.set_size(rcParams["legend.fontsize"])
        else:
            self.prop = prop

        self.patch = FancyBboxPatch(
            xy=(0.0, 0.0), width=1., height=1.,
            facecolor='w', edgecolor='k',
            mutation_scale=self.prop.get_size_in_points(),
            snap=True
            )
        self.patch.set_boxstyle("square",pad=0)
        self._drawFrame =  frameon




    def set_child(self, child):
        "set the child to be anchored"
        self._child = child

    def get_child(self):
        "return the child"
        return self._child

    def get_children(self):
        "return the list of children"
        return [self._child]


    def get_extent(self, renderer):
        """
        return the extent of the artist. The extent of the child
        added with the pad is returned
        """
        w, h, xd, yd =  self.get_child().get_extent(renderer)
        fontsize = renderer.points_to_pixels(self.prop.get_size_in_points())
        pad = self.pad * fontsize
#.........这里部分代码省略.........

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class AnnotationBbox(martist.Artist, _AnnotationBase):
    """
    Annotation-like class, but with offsetbox instead of Text.
    """

    zorder = 3

    def __str__(self):
        return "AnnotationBbox(%g,%g)"%(self.xy[0],self.xy[1])
    @docstring.dedent_interpd
    def __init__(self, offsetbox, xy,
                 xybox=None,
                 xycoords='data',
                 boxcoords=None,
                 frameon=True, pad=0.4, # BboxPatch
                 annotation_clip=None,
                 box_alignment=(0.5, 0.5),
                 bboxprops=None,
                 arrowprops=None,
                 fontsize=None,
                 **kwargs):
        """
        *offsetbox* : OffsetBox instance

        *xycoords* : same as Annotation but can be a tuple of two
           strings which are interpreted as x and y coordinates.

        *boxcoords* : similar to textcoords as Annotation but can be a
           tuple of two strings which are interpreted as x and y
           coordinates.

        *box_alignment* : a tuple of two floats for a vertical and
           horizontal alignment of the offset box w.r.t. the *boxcoords*.
           The lower-left corner is (0.0) and upper-right corner is (1.1).

        other parameters are identical to that of Annotation.
        """
        self.offsetbox = offsetbox

        self.arrowprops = arrowprops

        self.set_fontsize(fontsize)


        if arrowprops is not None:
            self._arrow_relpos = self.arrowprops.pop("relpos", (0.5, 0.5))
            self.arrow_patch = FancyArrowPatch((0, 0), (1,1),
                                               **self.arrowprops)
        else:
            self._arrow_relpos = None
            self.arrow_patch = None

        _AnnotationBase.__init__(self,
                                 xy, xytext=xybox,
                                 xycoords=xycoords, textcoords=boxcoords,
                                 annotation_clip=annotation_clip)

        martist.Artist.__init__(self, **kwargs)

        #self._fw, self._fh = 0., 0. # for alignment
        self._box_alignment = box_alignment

        # frame
        self.patch = FancyBboxPatch(
            xy=(0.0, 0.0), width=1., height=1.,
            facecolor='w', edgecolor='k',
            mutation_scale=self.prop.get_size_in_points(),
            snap=True
            )
        self.patch.set_boxstyle("square",pad=pad)
        if bboxprops:
            self.patch.set(**bboxprops)
        self._drawFrame =  frameon


    def contains(self,event):
        t,tinfo = self.offsetbox.contains(event)
        #if self.arrow_patch is not None:
        #    a,ainfo=self.arrow_patch.contains(event)
        #    t = t or a

        # self.arrow_patch is currently not checked as this can be a line - JJ

        return t,tinfo


    def get_children(self):
        children = [self.offsetbox, self.patch]
        if self.arrow_patch:
            children.append(self.arrow_patch)
        return children

    def set_figure(self, fig):

        if self.arrow_patch is not None:
            self.arrow_patch.set_figure(fig)
        self.offsetbox.set_figure(fig)
        martist.Artist.set_figure(self, fig)

    def set_fontsize(self, s=None):
#.........这里部分代码省略.........

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class Legend(Artist):
    """
    Place a legend on the axes at location loc.  Labels are a
    sequence of strings and loc can be a string or an integer
    specifying the legend location

    The location codes are::

      'best'         : 0, (only implemented for axes legends)
      'upper right'  : 1,
      'upper left'   : 2,
      'lower left'   : 3,
      'lower right'  : 4,
      'right'        : 5, (same as 'center right', for back-compatibility)
      'center left'  : 6,
      'center right' : 7,
      'lower center' : 8,
      'upper center' : 9,
      'center'       : 10,

    loc can be a tuple of the normalized coordinate values with
    respect its parent.

    """
    codes = {'best':         0,  # only implemented for axes legends
             '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,
             }

    zorder = 5

    def __str__(self):
        return "Legend"

    def __init__(self, parent, handles, labels,
                 loc=None,
                 numpoints=None,    # the number of points in the legend line
                 markerscale=None,  # the relative size of legend markers
                                    # vs. original
                 markerfirst=True,  # controls ordering (left-to-right) of
                                    # legend marker and label
                 scatterpoints=None,    # number of scatter points
                 scatteryoffsets=None,
                 prop=None,          # properties for the legend texts
                 fontsize=None,        # keyword to set font size directly

                 # spacing & pad defined as a fraction of the font-size
                 borderpad=None,      # the whitespace inside the legend border
                 labelspacing=None,   # the vertical space between the legend
                                      # entries
                 handlelength=None,   # the length of the legend handles
                 handleheight=None,   # the height of the legend handles
                 handletextpad=None,  # the pad between the legend handle
                                      # and text
                 borderaxespad=None,  # the pad between the axes and legend
                                      # border
                 columnspacing=None,  # spacing between columns

                 ncol=1,     # number of columns
                 mode=None,  # mode for horizontal distribution of columns.
                             # None, "expand"

                 fancybox=None,  # True use a fancy box, false use a rounded
                                 # box, none use rc
                 shadow=None,
                 title=None,  # set a title for the legend

                 framealpha=None,  # set frame alpha
                 edgecolor=None,  # frame patch edgecolor
                 facecolor=None,  # frame patch facecolor

                 bbox_to_anchor=None,  # bbox that the legend will be anchored.
                 bbox_transform=None,  # transform for the bbox
                 frameon=None,  # draw frame
                 handler_map=None,
                 ):
        """
        - *parent*: the artist that contains the legend
        - *handles*: a list of artists (lines, patches) to be added to the
                      legend
        - *labels*: a list of strings to label the legend

        Optional keyword arguments:

        ================   ====================================================
        Keyword            Description
        ================   ====================================================
        loc                Location code string, or tuple (see below).
        prop               the font property
        fontsize           the font size (used only if prop is not specified)
        markerscale        the relative size of legend markers vs. original
        markerfirst        If True (default), marker is to left of the label.
#.........这里部分代码省略.........

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class Legend(Artist):
    """
    Place a legend on the axes at location loc.  Labels are a
    sequence of strings and loc can be a string or an integer
    specifying the legend location

    The location codes are::

      'best'         : 0, (only implemented for axis legends)
      '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,

    loc can be a tuple of the noramilzed coordinate values with
    respect its parent.

    Return value is a sequence of text, line instances that make
    up the legend
    """


    codes = {'best'         : 0, # only implemented for axis legends
             '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,
             }


    zorder = 5
    def __str__(self):
        return "Legend"

    def __init__(self, parent, handles, labels,
                 loc = None,
                 numpoints = None,     # the number of points in the legend line
                 markerscale = None,   # the relative size of legend markers vs. original
                 scatterpoints = 3,    # TODO: may be an rcParam
                 scatteryoffsets=None,
                 prop = None,          # properties for the legend texts

                 # the following dimensions are in axes coords
                 pad = None,           # deprecated; use borderpad
                 labelsep = None,      # deprecated; use labelspacing
                 handlelen = None,     # deprecated; use handlelength
                 handletextsep = None, # deprecated; use handletextpad
                 axespad = None,       # deprecated; use borderaxespad

                 # spacing & pad defined as a fractionof the font-size
                 borderpad = None,     # the whitespace inside the legend border
                 labelspacing=None, #the vertical space between the legend entries
                 handlelength=None, # the length of the legend handles
                 handletextpad=None, # the pad between the legend handle and text
                 borderaxespad=None, # the pad between the axes and legend border
                 columnspacing=None, # spacing between columns

                 ncol=1, # number of columns
                 mode=None, # mode for horizontal distribution of columns. None, "expand"

                 fancybox=None, # True use a fancy box, false use a rounded box, none use rc
                 shadow = None,
                 ):
        """
        - *parent* : the artist that contains the legend
        - *handles* : a list of artists (lines, patches) to add to the legend
        - *labels* : a list of strings to label the legend

        Optional keyword arguments:

        ================   ==================================================================
        Keyword            Description
        ================   ==================================================================
        loc                a location code or a tuple of coordinates
        numpoints          the number of points in the legend line
        prop               the font property
        markerscale        the relative size of legend markers vs. original
        fancybox           if True, draw a frame with a round fancybox.  If None, use rc
        shadow             if True, draw a shadow behind legend
        scatteryoffsets    a list of yoffsets for scatter symbols in legend
        borderpad          the fractional whitespace inside the legend border
        labelspacing       the vertical space between the legend entries
        handlelength       the length of the legend handles
        handletextpad      the pad between the legend handle and text
        borderaxespad      the pad between the axes and legend border
        columnspacing      the spacing between columns
        ================   ==================================================================

#.........这里部分代码省略.........

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import draw [as 别名]
class Legend(Artist):
    """
    Place a legend on the axes at location loc.

    """
    codes = {'best':         0,  # only implemented for axes legends
             '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,
             }

    zorder = 5

    def __str__(self):
        return "Legend"

    @docstring.dedent_interpd
    def __init__(self, parent, handles, labels,
                 loc=None,
                 numpoints=None,    # the number of points in the legend line
                 markerscale=None,  # the relative size of legend markers
                                    # vs. original
                 markerfirst=True,  # controls ordering (left-to-right) of
                                    # legend marker and label
                 scatterpoints=None,    # number of scatter points
                 scatteryoffsets=None,
                 prop=None,          # properties for the legend texts
                 fontsize=None,        # keyword to set font size directly

                 # spacing & pad defined as a fraction of the font-size
                 borderpad=None,      # the whitespace inside the legend border
                 labelspacing=None,   # the vertical space between the legend
                                      # entries
                 handlelength=None,   # the length of the legend handles
                 handleheight=None,   # the height of the legend handles
                 handletextpad=None,  # the pad between the legend handle
                                      # and text
                 borderaxespad=None,  # the pad between the axes and legend
                                      # border
                 columnspacing=None,  # spacing between columns

                 ncol=1,     # number of columns
                 mode=None,  # mode for horizontal distribution of columns.
                             # None, "expand"

                 fancybox=None,  # True use a fancy box, false use a rounded
                                 # box, none use rc
                 shadow=None,
                 title=None,  # set a title for the legend
                 title_fontsize=None,  # set to ax.fontsize if None
                 framealpha=None,  # set frame alpha
                 edgecolor=None,  # frame patch edgecolor
                 facecolor=None,  # frame patch facecolor

                 bbox_to_anchor=None,  # bbox that the legend will be anchored.
                 bbox_transform=None,  # transform for the bbox
                 frameon=None,  # draw frame
                 handler_map=None,
                 ):
        """
        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.
        """
        # local import only to avoid circularity
        from matplotlib.axes import Axes
        from matplotlib.figure import Figure
#.........这里部分代码省略.........