Exemple #1
0
    def _add_bar_graph(self, item, shading='faceted'):
        if DEBUG:
            print "Adding a bar graph"
        # get data:
        x = squeeze(item.getp('xdata'))
        y = squeeze(item.getp('ydata'))
        # get line specifiactions:
        marker, color, style, width = self._get_linespecs(item)

        edgecolor = item.getp('edgecolor')
        if not edgecolor:
            edgecolor = 'k'  # use black for now
            # FIXME: edgecolor should be same as ax.getp('fgcolor') by default
        facecolor = item.getp('facecolor')
        if not facecolor:
            facecolor = color
        opacity = item.getp('material').getp('opacity')
        if opacity is None:
            opacity = 1.0

        if y.ndim == 1:
            y = reshape(y,(len(y),1))
        nx, ny = shape(y)

        step = item.getp('barstepsize')/10

        center = floor(ny/2)
        start = -step*center
        stop = step*center
        if not ny%2:
            start += step/2
            stop -= step/2
        a = linspace(start,stop,ny)

        barwidth = item.getp('barwidth')/10

        hold_state = self._g.ishold()
        self._g.hold(True)
        colors = PlotProperties._colors + \
                 list(matplotlib.colors.cnames.values())
        for j in range(ny):
            y_ = y[:,j]
            x_ = array(list(range(nx))) + a[j] - barwidth/2
            if not facecolor:
                c = colors[j]
            else:
                c = facecolor
            self._g.bar(x_, y_, width=barwidth, color=c,
                        ec=edgecolor, alpha=opacity)
        self._g.hold(hold_state)

        barticks = item.getp('barticks')
        if barticks is None:
            barticks = x
        if item.getp('rotated_barticks'):
            self._g.xticks(list(range(len(x))), barticks, rotation=90)
        else:
            self._g.xticks(list(range(len(x))), barticks)
Exemple #2
0
    def _add_bars(self, name, item, shading='faceted'):
        if DEBUG:
            print("Adding a bar graph")
        # get data:
        x = item.getp('xdata')
        y = item.getp('ydata')
        # get line specifiactions:
        marker, color, style, width = self._get_linespecs(item)

        if y.ndim == 1:
            y = reshape(y, (len(y), 1))
        nx, ny = shape(y)

        barticks = item.getp('barticks')
        if barticks is None:
            barticks = list(range(nx))
        xtics = ', '.join(['"%s" %d' % (m, i)
                           for i, m in enumerate(barticks)])
        if item.getp('rotated_barticks'):
            pass

        barwidth = item.getp('barwidth') / 10
        edgecolor = item.getp('edgecolor')
        if not edgecolor:
            edgecolor = 'black'  # use black for now
            # FIXME: edgecolor should be same as ax.getp('fgcolor') by default
        else:
            edgecolor = self._colors.get(edgecolor, 'black')

        if shading == 'faceted':
            pass
        else:
            pass

        facecolor = item.getp('facecolor')
        if not facecolor:
            facecolor = color
        facecolor = self._colors.get(facecolor, 'blue')  # use blue as default

        step = item.getp('barstepsize') / 10

        center = floor(ny / 2)
        start = -step * center
        stop = step * center
        if not ny % 2:
            start += step / 2
            stop -= step / 2
        a = linspace(start, stop, ny)

        self._g.configure(barmode="overlap")

        data = []
        for j in range(ny):
            y_ = y[:, j]
            x_ = array(list(range(nx))) + a[j]
            curvename = '%s_bar%s' % (name, j)
            if not item.getp('linecolor') and not item.getp('facecolor'):
                color = 'black'
            else:
                color = facecolor
            self._g.bar_create(curvename,
                               xdata=tuple(x_),
                               ydata=tuple(y_),
                               barwidth=barwidth,
                               fg=color)