@@ -272,7 +272,7 @@ class Slider(AxesWidget):
272272 """
273273 def __init__ (self , ax , label , valmin , valmax , valinit = 0.5 , valfmt = '%1.2f' ,
274274 closedmin = True , closedmax = True , slidermin = None ,
275- slidermax = None , dragging = True , valstep = None , ** kwargs ):
275+ slidermax = None , dragging = True , valstep = None , orientation = 'h' , ** kwargs ):
276276 """
277277 Parameters
278278 ----------
@@ -314,6 +314,9 @@ def __init__(self, ax, label, valmin, valmax, valinit=0.5, valfmt='%1.2f',
314314 valstep : float, optional, default: None
315315 If given, the slider will snap to multiples of `valstep`.
316316
317+ orientation : str, optional, default: 'h'
318+ If 'h' the slider is horizontal. If 'v' it is vertical
319+
317320 Notes
318321 -----
319322 Additional kwargs are passed on to ``self.poly`` which is the
@@ -329,6 +332,11 @@ def __init__(self, ax, label, valmin, valmax, valinit=0.5, valfmt='%1.2f',
329332 if slidermax is not None and not hasattr (slidermax , 'val' ):
330333 raise ValueError ("Argument slidermax ({}) has no 'val'"
331334 .format (type (slidermax )))
335+ if orientation not in 'h' , 'v' ]:
336+ raise ValueError ("Argument orientation ({}) must be either 'h' or 'v'"
337+ .format (orientation ))
338+
339+ self .orientation = orientation
332340 self .closedmin = closedmin
333341 self .closedmax = closedmax
334342 self .slidermin = slidermin
@@ -342,27 +350,44 @@ def __init__(self, ax, label, valmin, valmax, valinit=0.5, valfmt='%1.2f',
342350 valinit = valmin
343351 self .val = valinit
344352 self .valinit = valinit
345- self .poly = ax .axvspan (valmin , valinit , 0 , 1 , ** kwargs )
346- self .vline = ax .axvline (valinit , 0 , 1 , color = 'r' , lw = 1 )
353+ if orientation is 'v' :
354+ self .poly = ax .axhspan (valmin , valinit , 0 , 1 , ** kwargs )
355+ self .hline = ax .axhline (valinit , 0 , 1 , color = 'r' , lw = 1 )
356+ else :
357+ self .poly = ax .axvspan (valmin , valinit , 0 , 1 , ** kwargs )
358+ self .vline = ax .axvline (valinit , 0 , 1 , color = 'r' , lw = 1 )
347359
348360 self .valfmt = valfmt
349361 ax .set_yticks ([])
350- ax .set_xlim ((valmin , valmax ))
362+ if orientation is 'v' :
363+ ax .set_ylim ((valmin , valmax ))
364+ else :
365+ ax .set_xlim ((valmin , valmax ))
351366 ax .set_xticks ([])
352367 ax .set_navigate (False )
353368
354369 self .connect_event ('button_press_event' , self ._update )
355370 self .connect_event ('button_release_event' , self ._update )
356371 if dragging :
357372 self .connect_event ('motion_notify_event' , self ._update )
358- self .label = ax .text (- 0.02 , 0.5 , label , transform = ax .transAxes ,
359- verticalalignment = 'center' ,
360- horizontalalignment = 'right' )
373+ if orientation is 'v' :
374+ self .label = ax .text (0.5 , 1.02 , label , transform = ax .transAxes ,
375+ verticalalignment = 'bottom' ,
376+ horizontalalignment = 'center' )
377+
378+ self .valtext = ax .text (0.5 , - 0.02 , valfmt % valinit ,
379+ transform = ax .transAxes ,
380+ verticalalignment = 'top' ,
381+ horizontalalignment = 'center' )
382+ else :
383+ self .label = ax .text (- 0.02 , 0.5 , label , transform = ax .transAxes ,
384+ verticalalignment = 'center' ,
385+ horizontalalignment = 'right' )
361386
362- self .valtext = ax .text (1.02 , 0.5 , valfmt % valinit ,
363- transform = ax .transAxes ,
364- verticalalignment = 'center' ,
365- horizontalalignment = 'left' )
387+ self .valtext = ax .text (1.02 , 0.5 , valfmt % valinit ,
388+ transform = ax .transAxes ,
389+ verticalalignment = 'center' ,
390+ horizontalalignment = 'left' )
366391
367392 self .cnt = 0
368393 self .observers = {}
@@ -416,7 +441,10 @@ def _update(self, event):
416441 self .drag_active = False
417442 event .canvas .release_mouse (self .ax )
418443 return
419- val = self ._value_in_bounds (event .xdata )
444+ if self .orientation is 'v' :
445+ val = self ._value_in_bounds (event .ydata )
446+ else :
447+ val = self ._value_in_bounds (event .xdata )
420448 if (val is not None ) and (val != self .val ):
421449 self .set_val (val )
422450
@@ -429,8 +457,12 @@ def set_val(self, val):
429457 val : float
430458 """
431459 xy = self .poly .xy
432- xy [2 ] = val , 1
433- xy [3 ] = val , 0
460+ if self .orientation is 'v' :
461+ xy [1 ] = 0 , val
462+ xy [2 ] = 1 , val
463+ else :
464+ xy [2 ] = val , 1
465+ xy [3 ] = val , 0
434466 self .poly .xy = xy
435467 self .valtext .set_text (self .valfmt % val )
436468 if self .drawon :
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