Python FancyBboxPatch.set_bounds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 set_bounds [as 别名]

#.........这里部分代码省略.........
        "Heper function to locate the legend using the location code"

        if iterable(self._loc) and len(self._loc)==2:
            # when loc is a tuple of axes(or figure) coordinates.
            fx, fy = self._loc
            bbox = self.get_bbox_to_anchor()
            x, y = bbox.x0 + bbox.width * fx, bbox.y0 + bbox.height * fy
        else:
            bbox = Bbox.from_bounds(0, 0, width, height)
            x, y = self._get_anchored_bbox(self._loc, bbox, self.get_bbox_to_anchor(), renderer)

        return x+xdescent, y+ydescent

    @allow_rasterization
    def draw(self, renderer):
        "Draw everything that belongs to the legend"
        if not self.get_visible(): return


        renderer.open_group('legend')


        fontsize = renderer.points_to_pixels(self._fontsize)

        # if mode == fill, set the width of the legend_box to the
        # width of the paret (minus pads)
        if self._mode in ["expand"]:
            pad = 2*(self.borderaxespad+self.borderpad)*fontsize
            self._legend_box.set_width(self.get_bbox_to_anchor().width-pad)

        if self._drawFrame:
            # update the location and size of the legend
            bbox = self._legend_box.get_window_extent(renderer)
            self.legendPatch.set_bounds(bbox.x0, bbox.y0,
                                        bbox.width, bbox.height)

            self.legendPatch.set_mutation_scale(fontsize)

            if self.shadow:
                shadow = Shadow(self.legendPatch, 2, -2)
                shadow.draw(renderer)

            self.legendPatch.draw(renderer)

        self._legend_box.draw(renderer)

        renderer.close_group('legend')


    def _approx_text_height(self, renderer=None):
        """
        Return the approximate height of the text. This is used to place
        the legend handle.
        """
        if renderer is None:
            return self._fontsize
        else:
            return renderer.points_to_pixels(self._fontsize)


    # _default_handler_map defines the default mapping between plot
    # elements and the legend handlers.

    _default_handler_map = {
        StemContainer:legend_handler.HandlerStem(),
        ErrorbarContainer:legend_handler.HandlerErrorbar(),

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import set_bounds [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 set_bounds [as 别名]

#.........这里部分代码省略.........
                l = len(bbox)
            except TypeError:
                raise ValueError("Invalid argument for bbox : %s" % str(bbox))

            if l == 2:
                bbox = [bbox[0], bbox[1], 0, 0]

            self._bbox_to_anchor = Bbox.from_bounds(*bbox)

        self._bbox_to_anchor_transform = transform


    def get_window_extent(self, renderer):
        '''
        get the bounding box in display space.
        '''
        self._update_offset_func(renderer)
        w, h, xd, yd = self.get_extent(renderer)
        ox, oy = self.get_offset(w, h, xd, yd, renderer)
        return Bbox.from_bounds(ox-xd, oy-yd, w, h)


    def _update_offset_func(self, renderer, fontsize=None):
        """
        Update the offset func which depends on the dpi of the
        renderer (because of the padding).
        """
        if fontsize is None:
            fontsize = renderer.points_to_pixels(self.prop.get_size_in_points())

        def _offset(w, h, xd, yd, renderer, fontsize=fontsize, self=self):
            bbox = Bbox.from_bounds(0, 0, w, h)
            borderpad = self.borderpad*fontsize
            bbox_to_anchor = self.get_bbox_to_anchor()

            x0, y0 = self._get_anchored_bbox(self.loc,
                                             bbox,
                                             bbox_to_anchor,
                                             borderpad)
            return x0+xd, y0+yd

        self.set_offset(_offset)


    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(self, renderer):
        "draw the artist"

        if not self.get_visible(): return

        fontsize = renderer.points_to_pixels(self.prop.get_size_in_points())
        self._update_offset_func(renderer, fontsize)

        if self._drawFrame:
            # update the location and size of the legend
            bbox = self.get_window_extent(renderer)
            self.update_frame(bbox, fontsize)
            self.patch.draw(renderer)


        width, height, xdescent, ydescent = self.get_extent(renderer)

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

        self.get_child().set_offset((px, py))
        self.get_child().draw(renderer)



    def _get_anchored_bbox(self, loc, bbox, parentbbox, borderpad):
        """
        return the position of the bbox anchored at the parentbbox
        with the loc code, with the borderpad.
        """
        assert loc in range(1,11) # called only internally

        BEST, UR, UL, LL, LR, R, CL, CR, LC, UC, C = range(11)

        anchor_coefs={UR:"NE",
                      UL:"NW",
                      LL:"SW",
                      LR:"SE",
                      R:"E",
                      CL:"W",
                      CR:"E",
                      LC:"S",
                      UC:"N",
                      C:"C"}

        c = anchor_coefs[loc]

        container = parentbbox.padded(-borderpad)
        anchored_box = bbox.anchored(c, container=container)
        return anchored_box.x0, anchored_box.y0

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import set_bounds [as 别名]

#.........这里部分代码省略.........
        return fontsize in points
        """
        return self.prop.get_size_in_points()

    def update_positions(self, renderer):
        "Update the pixel positions of the annotated point and the text."
        xy_pixel = self._get_position_xy(renderer)
        self._update_position_xybox(renderer, xy_pixel)

        mutation_scale = renderer.points_to_pixels(self.get_fontsize())
        self.patch.set_mutation_scale(mutation_scale)

        if self.arrow_patch:
            self.arrow_patch.set_mutation_scale(mutation_scale)


    def _update_position_xybox(self, renderer, xy_pixel):
        "Update the pixel positions of the annotation text and the arrow patch."

        x, y = self.xytext
        if isinstance(self.textcoords, tuple):
            xcoord, ycoord = self.textcoords
            x1, y1 = self._get_xy(renderer, x, y, xcoord)
            x2, y2 = self._get_xy(renderer, x, y, ycoord)
            ox0, oy0 = x1, y2
        else:
            ox0, oy0 = self._get_xy(renderer, x, y, self.textcoords)

        w, h, xd, yd = self.offsetbox.get_extent(renderer)

        _fw, _fh = self._box_alignment
        self.offsetbox.set_offset((ox0-_fw*w+xd, oy0-_fh*h+yd))

        # update patch position
        bbox = self.offsetbox.get_window_extent(renderer)
        #self.offsetbox.set_offset((ox0-_fw*w, oy0-_fh*h))
        self.patch.set_bounds(bbox.x0, bbox.y0,
                              bbox.width, bbox.height)

        x, y = xy_pixel

        ox1, oy1 = x, y

        if self.arrowprops:
            x0, y0 = x, y

            d = self.arrowprops.copy()

            # Use FancyArrowPatch if self.arrowprops has "arrowstyle" key.

            # adjust the starting point of the arrow relative to
            # the textbox.
            # TODO : Rotation needs to be accounted.
            relpos = self._arrow_relpos

            ox0 = bbox.x0 + bbox.width * relpos[0]
            oy0 = bbox.y0 + bbox.height * relpos[1]

            # The arrow will be drawn from (ox0, oy0) to (ox1,
            # oy1). It will be first clipped by patchA and patchB.
            # Then it will be shrinked by shirnkA and shrinkB
            # (in points). If patch A is not set, self.bbox_patch
            # is used.

            self.arrow_patch.set_positions((ox0, oy0), (ox1,oy1))
            fs = self.prop.get_size_in_points()
            mutation_scale = d.pop("mutation_scale", fs)
            mutation_scale = renderer.points_to_pixels(mutation_scale)
            self.arrow_patch.set_mutation_scale(mutation_scale)

            patchA = d.pop("patchA", self.patch)
            self.arrow_patch.set_patchA(patchA)



    def draw(self, renderer):
        """
        Draw the :class:`Annotation` object to the given *renderer*.
        """

        if renderer is not None:
            self._renderer = renderer
        if not self.get_visible(): return

        xy_pixel = self._get_position_xy(renderer)

        if not self._check_xy(renderer, xy_pixel):
            return

        self.update_positions(renderer)

        if self.arrow_patch is not None:
            if self.arrow_patch.figure is None and self.figure is not None:
                self.arrow_patch.figure = self.figure
            self.arrow_patch.draw(renderer)

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

        self.offsetbox.draw(renderer)

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import set_bounds [as 别名]

#.........这里部分代码省略.........
        if self._loc == 0:  # "best".
            x, y = self._find_best_position(width, height, renderer)
        elif self._loc in Legend.codes.values():  # Fixed location.
            bbox = Bbox.from_bounds(0, 0, width, height)
            x, y = self._get_anchored_bbox(self._loc, bbox,
                                           self.get_bbox_to_anchor(),
                                           renderer)
        else:  # Axes or figure coordinates.
            fx, fy = self._loc
            bbox = self.get_bbox_to_anchor()
            x, y = bbox.x0 + bbox.width * fx, bbox.y0 + bbox.height * fy

        return x + xdescent, y + ydescent

    @allow_rasterization
    def draw(self, renderer):
        "Draw everything that belongs to the legend"
        if not self.get_visible():
            return

        renderer.open_group('legend')

        fontsize = renderer.points_to_pixels(self._fontsize)

        # if mode == fill, set the width of the legend_box to the
        # width of the paret (minus pads)
        if self._mode in ["expand"]:
            pad = 2 * (self.borderaxespad + self.borderpad) * fontsize
            self._legend_box.set_width(self.get_bbox_to_anchor().width - pad)

        # update the location and size of the legend. This needs to
        # be done in any case to clip the figure right.
        bbox = self._legend_box.get_window_extent(renderer)
        self.legendPatch.set_bounds(bbox.x0, bbox.y0,
                                    bbox.width, bbox.height)
        self.legendPatch.set_mutation_scale(fontsize)

        if self._drawFrame:
            if self.shadow:
                shadow = Shadow(self.legendPatch, 2, -2)
                shadow.draw(renderer)

            self.legendPatch.draw(renderer)

        self._legend_box.draw(renderer)

        renderer.close_group('legend')
        self.stale = False

    def _approx_text_height(self, renderer=None):
        """
        Return the approximate height of the text. This is used to place
        the legend handle.
        """
        if renderer is None:
            return self._fontsize
        else:
            return renderer.points_to_pixels(self._fontsize)

    # _default_handler_map defines the default mapping between plot
    # elements and the legend handlers.

    _default_handler_map = {
        StemContainer: legend_handler.HandlerStem(),
        ErrorbarContainer: legend_handler.HandlerErrorbar(),
        Line2D: legend_handler.HandlerLine2D(),

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import set_bounds [as 别名]

#.........这里部分代码省略.........

    def draw(self, renderer):
        "Draw everything that belongs to the legend"
        if not self.get_visible(): return

        self._update_legend_box(renderer)

        renderer.open_group('legend')

        # find_offset function will be provided to _legend_box and
        # _legend_box will draw itself at the location of the return
        # value of the find_offset.
        if self._loc == 0:
            _findoffset = self._findoffset_best
        else:
            _findoffset = self._findoffset_loc

        def findoffset(width, height, xdescent, ydescent):
            return _findoffset(width, height, xdescent, ydescent, renderer)
        
        self._legend_box.set_offset(findoffset)
        
        fontsize = renderer.points_to_pixels(self.fontsize)

        # if mode == fill, set the width of the legend_box to the
        # width of the paret (minus pads)
        if self._mode in ["expand"]:
            pad = 2*(self.borderaxespad+self.borderpad)*fontsize
            self._legend_box.set_width(self.parent.bbox.width-pad)

        if self._drawFrame:
            # update the location and size of the legend
            bbox = self._legend_box.get_window_extent(renderer)
            self.legendPatch.set_bounds(bbox.x0, bbox.y0,
                                        bbox.width, bbox.height)

            self.legendPatch.set_mutation_scale(fontsize)

            if self.shadow:
                shadow = Shadow(self.legendPatch, 2, -2)
                shadow.draw(renderer)

            self.legendPatch.draw(renderer)

        self._legend_box.draw(renderer)

        renderer.close_group('legend')


    def _approx_text_height(self, renderer=None):
        """
        Return the approximate height of the text. This is used to place
        the legend handle.
        """
        if renderer is None:
            return self.fontsize
        else:
            return renderer.points_to_pixels(self.fontsize)


    def _init_legend_box(self, handles, labels):
        """
        Initiallize 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.

# 需要导入模块: from matplotlib.patches import FancyBboxPatch [as 别名]
# 或者: from matplotlib.patches.FancyBboxPatch import set_bounds [as 别名]

#.........这里部分代码省略.........
        if self._loc == 0:  # "best".
            x, y = self._find_best_position(width, height, renderer)
        elif self._loc in Legend.codes.values():  # Fixed location.
            bbox = Bbox.from_bounds(0, 0, width, height)
            x, y = self._get_anchored_bbox(self._loc, bbox,
                                           self.get_bbox_to_anchor(),
                                           renderer)
        else:  # Axes or figure coordinates.
            fx, fy = self._loc
            bbox = self.get_bbox_to_anchor()
            x, y = bbox.x0 + bbox.width * fx, bbox.y0 + bbox.height * fy

        return x + xdescent, y + ydescent

    @allow_rasterization
    def draw(self, renderer):
        "Draw everything that belongs to the legend."
        if not self.get_visible():
            return

        renderer.open_group('legend')

        fontsize = renderer.points_to_pixels(self._fontsize)

        # if mode == fill, set the width of the legend_box to the
        # width of the parent (minus pads)
        if self._mode in ["expand"]:
            pad = 2 * (self.borderaxespad + self.borderpad) * fontsize
            self._legend_box.set_width(self.get_bbox_to_anchor().width - pad)

        # update the location and size of the legend. This needs to
        # be done in any case to clip the figure right.
        bbox = self._legend_box.get_window_extent(renderer)
        self.legendPatch.set_bounds(bbox.x0, bbox.y0,
                                    bbox.width, bbox.height)
        self.legendPatch.set_mutation_scale(fontsize)

        if self._drawFrame:
            if self.shadow:
                shadow = Shadow(self.legendPatch, 2, -2)
                shadow.draw(renderer)

            self.legendPatch.draw(renderer)

        self._legend_box.draw(renderer)

        renderer.close_group('legend')
        self.stale = False

    def _approx_text_height(self, renderer=None):
        """
        Return the approximate height of the text. This is used to place
        the legend handle.
        """
        if renderer is None:
            return self._fontsize
        else:
            return renderer.points_to_pixels(self._fontsize)

    # _default_handler_map defines the default mapping between plot
    # elements and the legend handlers.

    _default_handler_map = {
        StemContainer: legend_handler.HandlerStem(),
        ErrorbarContainer: legend_handler.HandlerErrorbar(),
        Line2D: legend_handler.HandlerLine2D(),