Python Rectangle.update_from方法代码示例

# 需要导入模块: from matplotlib.patches import Rectangle [as 别名]
# 或者: from matplotlib.patches.Rectangle import update_from [as 别名]
    def resizeGraphics(self, width, height):

        """ It is time to set a magnitude to our currently normalized
            lines, and send them to the figure. Here we assume that
            __normLines & __normPatches are already fully populated. """
        self.__fig.lines   = [] # clear all old lines from figure
        self.__fig.patches = [] # clear all old patches from figure
        self.__xsz = width
        self.__ysz = height

        # scale each text item
        for t in self.__fig.texts:
            t.set_size(self.getTextPointSize(t.gkiTextSzFactor, width, height))

        # scale each line, then apply it to the figure
        for nrln in self.__normLines:
            ll = Line2D([], [])
            ll.update_from(nrln)
            ll.set_data(nrln.get_xdata(True)*self.__xsz,
                        nrln.get_ydata(True)*self.__ysz)
            self.__fig.lines.append(ll)

        # scale each patch, then apply it to the figure
        for nrpa in self.__normPatches:
            rr = Rectangle((0,0),0,0)
            rr.update_from(nrpa)
            rr.set_x(nrpa.get_x()*self.__xsz)
            rr.set_y(nrpa.get_y()*self.__ysz)
            rr.set_width(nrpa.get_width()*self.__xsz)
            rr.set_height(nrpa.get_height()*self.__ysz)
            self.__fig.patches.append(rr)

# 需要导入模块: from matplotlib.patches import Rectangle [as 别名]
# 或者: from matplotlib.patches.Rectangle import update_from [as 别名]
    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.
        """

        fontsize = self.fontsize

        # legend_box is a HPacker, horizontally packed with
        # columns. Each column is a VPacker, vertically packed with
        # legend items. Each legend item is HPacker packed with
        # legend handleBox and labelBox. handleBox is an instance of
        # offsetbox.DrawingArea which contains legend handle. labelBox
        # is an instance of offsetbox.TextArea which contains legend
        # text.


        text_list = []  # the list of text instances
        handle_list = []  # the list of text instances

        label_prop = dict(verticalalignment='baseline',
                          horizontalalignment='left',
                          fontproperties=self.prop,
                          )

        labelboxes = []

        for l in labels:
            textbox = TextArea(l, textprops=label_prop,
                               multilinebaseline=True, minimumdescent=True)
            text_list.append(textbox._text)
            labelboxes.append(textbox)

        handleboxes = []


        # The approximate height and descent of text. These values are
        # only used for plotting the legend handle.
        height = self._approx_text_height() * 0.7
        descent = 0.

        # each handle needs to be drawn inside a box of (x, y, w, h) =
        # (0, -descent, width, height).  And their corrdinates should
        # be given in the display coordinates.

        # NOTE : the coordinates will be updated again in
        # _update_legend_box() method.

        # The transformation of each handle will be automatically set
        # to self.get_trasnform(). If the artist does not uses its
        # default trasnform (eg, Collections), you need to
        # manually set their transform to the self.get_transform().

        for handle in handles:
            if isinstance(handle, RegularPolyCollection):
                npoints = self.scatterpoints
            else:
                npoints = self.numpoints
            if npoints > 1:
                # we put some pad here to compensate the size of the
                # marker
                xdata = np.linspace(0.3*fontsize,
                                    (self.handlelength-0.3)*fontsize,
                                    npoints)
                xdata_marker = xdata
            elif npoints == 1:
                xdata = np.linspace(0, self.handlelength*fontsize, 2)
                xdata_marker = [0.5*self.handlelength*fontsize]

            if isinstance(handle, Line2D):
                ydata = ((height-descent)/2.)*np.ones(xdata.shape, float)
                legline = Line2D(xdata, ydata)

                legline.update_from(handle)
                self._set_artist_props(legline) # after update
                legline.set_clip_box(None)
                legline.set_clip_path(None)
                legline.set_drawstyle('default')
                legline.set_marker('None')

                handle_list.append(legline)

                legline_marker = Line2D(xdata_marker, ydata[:len(xdata_marker)])
                legline_marker.update_from(handle)
                self._set_artist_props(legline_marker)
                legline_marker.set_clip_box(None)
                legline_marker.set_clip_path(None)
                legline_marker.set_linestyle('None')
                # we don't want to add this to the return list because
                # the texts and handles are assumed to be in one-to-one
                # correpondence.
                legline._legmarker = legline_marker

            elif isinstance(handle, Patch):
                p = Rectangle(xy=(0., 0.),
                              width = self.handlelength*fontsize,
                              height=(height-descent),
                              )
#.........这里部分代码省略.........