Re: [Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

[rogerjames99 <ro...@be...>]

Hi Thomas,I posted via nabble. It looks like something stripped the code.Here
is the bit where the axes are set up    def setup_axes(self, fig, rect):       
"""        With custom locator and formatter.        Note that the extreme
values are swapped.        """        transform = PolarAxes.PolarTransform()       
angle_ticks = [(0, r"$Right$"),                       (.5*pi, r"$Forward$"),                      
(pi, r"$Left$")]        grid_locator1 = FixedLocator([v for v, s in
angle_ticks])        tick_formatter1 = DictFormatter(dict(angle_ticks))       
grid_locator2 = MaxNLocator(4)        self.grid_helper =
floating_axes.GridHelperCurveLinear(transform,                                           
extremes=(0, pi, self.sonar_limit, 0),                                           
grid_locator1=grid_locator1,                                           
grid_locator2=grid_locator2,                                           
tick_formatter1=tick_formatter1,                                           
tick_formatter2=None,                                            )       
self.axes = floating_axes.FloatingSubplot(fig, rect,
grid_helper=self.grid_helper)       
self.axes.axis["bottom"].major_ticklabels.set_rotation(180)       
self.axes.axis["left"].set_axis_direction("bottom")       
self.axes.grid(b=True, which='major', color='b', linestyle='-')       
fig.add_subplot(self.axes)        # create a parasite axes whose transData
in RA, cz        self.auxiliary_axes = self.axes.get_aux_axes(transform)       
self.auxiliary_axes.patch = self.axes.patch # for auxiliary_axis to have a
clip path as in ax        self.axes.patch.zorder=0.9 # but this has a side
effect that the patch is                            # drawn twice, and
possibly over some other                            # artists. So, we
decrease the zorder a bit to                            # prevent this.       
self.lines, = self.auxiliary_axes.plot(self.theta, self.radius)and here is
the bit where the plot is updated    def idleCallback(self):        global
root        plotit = False        logging.debug('Acquire the data lock')       
self.dataLock.acquire()        if self.newSonarDataAvailable:           
plotit = True            theta = self.theta[:]            radius =
self.radius[:]            selfNewSonarDataAvailable = False       
self.dataLock.release()#        theta.insert(0, 0.)#       
theta.append(0.)#        radius.insert(0, 0.)#        radius.append(0.)       
if plotit:            logging.debug('Plotting')           
self.lines.set_data(theta, radius)            self.axes.relim()           
self.axes.autoscale_view()            self.canvas.draw()if have also put the
full code file  here
<https://dl.dropboxusercontent.com/u/84613021/barnaby.py>  As you can see I
have been trying a few other things. Looks like if am missing the boat
pretty comprehensively!



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