I thought I'd share a solution to the draggable legend problem since
it took me forever to assimilate all the scattered knowledge on the
mailing lists...
class DraggableLegend:
def __init__(self, legend):
self.legend = legend
self.gotLegend = False
legend.figure.canvas.mpl_connect('motion_notify_event', self.on_motion)
legend.figure.canvas.mpl_connect('pick_event', self.on_pick)
legend.figure.canvas.mpl_connect('button_release_event',
self.on_release)
legend.set_picker(self.my_legend_picker)
def on_motion(self, evt):
if self.gotLegend:
dx = evt.x - self.mouse_x
dy = evt.y - self.mouse_y
loc_in_canvas = self.legend_x + dx, self.legend_y + dy
loc_in_norm_axes =
self.legend.parent.transAxes.inverted().transform_point(loc_in_canvas)
self.legend._loc = tuple(loc_in_norm_axes)
self.legend.figure.canvas.draw()
def my_legend_picker(self, legend, evt):
return self.legend.legendPatch.contains(evt)
def on_pick(self, evt):
legend = self.legend
if evt.artist == legend:
bbox = self.legend.get_window_extent()
self.mouse_x = evt.mouseevent.x
self.mouse_y = evt.mouseevent.y
self.legend_x = bbox.xmin
self.legend_y = bbox.ymin
self.gotLegend = 1
def on_release(self, event):
if self.gotLegend:
self.gotLegend = False
#...and in your code...
def draw(self):
ax = self.figure.add_subplot(111)
scatter = ax.scatter(np.random.randn(100), np.random.randn(100))
legend = DraggableLegend(ax.legend())
On Thu, Jan 28, 2010 at 3:02 PM, Adam Fraser <ada...@gm...> wrote: > I thought I'd share a solution to the draggable legend problem since > it took me forever to assimilate all the scattered knowledge on the > mailing lists... Cool -- nice example. I added the code to legend.py. Now you can do leg = ax.legend() leg.draggable() to enable draggable mode. You can repeatedly call this func to toggle the draggable state. Thanks, JDH
On Thu, Jan 28, 2010 at 3:48 PM, John Hunter <jd...@gm...> wrote: > On Thu, Jan 28, 2010 at 3:02 PM, Adam Fraser <ada...@gm...> > wrote: > > I thought I'd share a solution to the draggable legend problem since > > it took me forever to assimilate all the scattered knowledge on the > > mailing lists... > > Cool -- nice example. I added the code to legend.py. Now you can do > > leg = ax.legend() > leg.draggable() > > to enable draggable mode. You can repeatedly call this func to toggle > the draggable state. > > Thanks, > JDH > Very useful addition for me. One question In [8]: ax.leg<tab> ax.legend ax.legend_ Has the second instance forgotten or left on purpose? > > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the > business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Matplotlib-users mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Gökhan
> On Thu, Jan 28, 2010 at 3:48 PM, John Hunter <jd...@gm...
> Cool -- nice example. I added the code to legend.py. Now you can do
>
> leg = ax.legend()
> leg.draggable()
>
> to enable draggable mode. You can repeatedly call this func to toggle
> the draggable state.
Might I suggest that that be made:
leg.draggable(True)
leg.draggable(False)
or
leg.draggable('on')
leg.draggable('off')
or even a property:
leg.draggable = True
or some such. I'd be nice not to have to keep track of the current state.
-Chris
--
Christopher Barker, Ph.D.
Oceanographer
NOAA/OR&R/HAZMAT (206) 526-6959 voice
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On Thu, Jan 28, 2010 at 8:01 PM, Christopher Barker <Chr...@no...> wrote: > Might I suggest that that be made: > > leg.draggable(True) > leg.draggable(False) > Agreed. My favorite api for toggles is: _state = True def toggle(state=None): global _state old = _state if state is None: _state = not _state else: _state = state return old ### This lets you: - toggle without arguments - set state specifically as needed - save previous state before setting it if you need to make temporary changes. Cheers, f
Good job! +1 On Fri, Jan 29, 2010 at 4:14 AM, Fernando Perez <fpe...@gm...>wrote: > On Thu, Jan 28, 2010 at 8:01 PM, Christopher Barker > <Chr...@no...> wrote: > > Might I suggest that that be made: > > > > leg.draggable(True) > > leg.draggable(False) > > > > Agreed. My favorite api for toggles is: > > _state = True > > def toggle(state=None): > global _state > old = _state > if state is None: > _state = not _state > else: > _state = state > return old > > ### > > This lets you: > > - toggle without arguments > - set state specifically as needed > - save previous state before setting it if you need to make temporary > changes. > > Cheers, > > f > > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the > business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Matplotlib-users mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users >
On Thu, Jan 28, 2010 at 10:14 PM, Fernando Perez <fpe...@gm...> wrote: > On Thu, Jan 28, 2010 at 8:01 PM, Christopher Barker > <Chr...@no...> wrote: >> Might I suggest that that be made: >> >> leg.draggable(True) >> leg.draggable(False) >> > > Agreed. My favorite api for toggles is: > > _state = True OK, this is committed. Thanks for the suggestion. JDH
I did some refactoring and now the annotation is also draggable.. I also added an example, examples/animation/draggable_legend.py Regards, -JJ On Fri, Jan 29, 2010 at 10:28 AM, John Hunter <jd...@gm...> wrote: > On Thu, Jan 28, 2010 at 10:14 PM, Fernando Perez <fpe...@gm...> wrote: >> On Thu, Jan 28, 2010 at 8:01 PM, Christopher Barker >> <Chr...@no...> wrote: >>> Might I suggest that that be made: >>> >>> leg.draggable(True) >>> leg.draggable(False) >>> >> >> Agreed. My favorite api for toggles is: >> >> _state = True > > OK, this is committed. Thanks for the suggestion. > > JDH > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Matplotlib-users mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users >
added blitting support. -JJ On Fri, Jan 29, 2010 at 12:40 PM, Jae-Joon Lee <lee...@gm...> wrote: > I did some refactoring and now the annotation is also draggable.. > I also added an example, > > examples/animation/draggable_legend.py > > Regards, > > -JJ > > > > On Fri, Jan 29, 2010 at 10:28 AM, John Hunter <jd...@gm...> wrote: >> On Thu, Jan 28, 2010 at 10:14 PM, Fernando Perez <fpe...@gm...> wrote: >>> On Thu, Jan 28, 2010 at 8:01 PM, Christopher Barker >>> <Chr...@no...> wrote: >>>> Might I suggest that that be made: >>>> >>>> leg.draggable(True) >>>> leg.draggable(False) >>>> >>> >>> Agreed. My favorite api for toggles is: >>> >>> _state = True >> >> OK, this is committed. Thanks for the suggestion. >> >> JDH >> >> ------------------------------------------------------------------------------ >> The Planet: dedicated and managed hosting, cloud storage, colocation >> Stay online with enterprise data centers and the best network in the business >> Choose flexible plans and management services without long-term contracts >> Personal 24x7 support from experience hosting pros just a phone call away. >> http://p.sf.net/sfu/theplanet-com >> _______________________________________________ >> Matplotlib-users mailing list >> Mat...@li... >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >> >
One minor issue with the example is once you drag one of the items (legend or text or image) out of the plotting area there is no way to move them back unless you restart the example. Do you get the same defect? On Fri, Jan 29, 2010 at 11:40 AM, Jae-Joon Lee <lee...@gm...> wrote: > I did some refactoring and now the annotation is also draggable.. > I also added an example, > > examples/animation/draggable_legend.py > > Regards, > > -JJ > > > > On Fri, Jan 29, 2010 at 10:28 AM, John Hunter <jd...@gm...> wrote: > > On Thu, Jan 28, 2010 at 10:14 PM, Fernando Perez <fpe...@gm...> > wrote: > >> On Thu, Jan 28, 2010 at 8:01 PM, Christopher Barker > >> <Chr...@no...> wrote: > >>> Might I suggest that that be made: > >>> > >>> leg.draggable(True) > >>> leg.draggable(False) > >>> > >> > >> Agreed. My favorite api for toggles is: > >> > >> _state = True > > > > OK, this is committed. Thanks for the suggestion. > > > > JDH > > > > > ------------------------------------------------------------------------------ > > The Planet: dedicated and managed hosting, cloud storage, colocation > > Stay online with enterprise data centers and the best network in the > business > > Choose flexible plans and management services without long-term contracts > > Personal 24x7 support from experience hosting pros just a phone call > away. > > http://p.sf.net/sfu/theplanet-com > > _______________________________________________ > > Matplotlib-users mailing list > > Mat...@li... > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > > > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the > business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Matplotlib-users mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Gökhan