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GUI Neutral widgets
All of these widgets require you to predefine an Axes instance and
pass that as the first arg. matplotlib doesn't try to be too smart in
layout -- you have to figure out how wide and tall you want your Axes
to be to accommodate your widget.
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some widgets, like the cursor, draw onto the canvas, and this is not
desirable under all circumstaces, like when the toolbar is in
zoom-to-rect mode and drawing a rectangle. The module level "lock"
allows someone to grab the lock and prevent other widgets from
drawing. Use matplotlib.widgets.lock(someobj) to pr
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OK, I couldn't resist; abstract base class for mpl GUI neutral
widgets
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A GUI neutral button
The following attributes are accesible
ax - the Axes the button renders into
label - a text.Text instance
color - the color of the button when not hovering
hovercolor - the color of the button when hovering
Call "on_clicked" to connect to the button
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ax is the Axes instance the button will be placed into
label is a string which is the button text
image if not None, is an image to place in the button -- can
be any legal arg to imshow (numpy array, matplotlib Image
instance, or PIL image)
color is the color of the button when not activated
hovercolor is the color of the button when the mouse is over
it
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When the button is clicked, call this func with event
A connection id is returned which can be used to disconnect
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t Sliderc B sY e Z d Z d d e e d d e d Z d Z d Z d Z d Z d Z
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A slider representing a floating point range
The following attributes are defined
ax : the slider axes.Axes instance
val : the current slider value
vline : a Line2D instance representing the initial value
poly : A patch.Polygon instance which is the slider
valfmt : the format string for formatting the slider text
label : a text.Text instance, the slider label
closedmin : whether the slider is closed on the minimum
closedmax : whether the slider is closed on the maximum
slidermin : another slider - if not None, this slider must be > slidermin
slidermax : another slider - if not None, this slider must be < slidermax
dragging : allow for mouse dragging on slider
Call on_changed to connect to the slider event
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Create a slider from valmin to valmax in axes ax;
valinit - the slider initial position
label - the slider label
valfmt - used to format the slider value
closedmin and closedmax - indicate whether the slider interval is closed
slidermin and slidermax - be used to contrain the value of
this slider to the values of other sliders.
additional kwargs are passed on to self.poly which is the
matplotlib.patches.Rectangle which draws the slider. See the
matplotlib.patches.Rectangle documentation for legal property
names (eg facecolor, edgecolor, alpha, ...)
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When the slider valud is changed, call this func with the new
slider position
A connection id is returned which can be used to disconnect
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A GUI neutral radio button
The following attributes are exposed
ax - the Axes instance the buttons are in
labels - a list of text.Text instances
lines - a list of (line1, line2) tuples for the x's in the check boxes.
These lines exist for each box, but have set_visible(False) when
box is not checked
rectangles - a list of patch.Rectangle instances
Connect to the CheckButtons with the on_clicked method
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Add check buttons to axes.Axes instance ax
labels is a len(buttons) list of labels as strings
actives is a len(buttons) list of booleans indicating whether
the button is active
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When the button is clicked, call this func with button label
A connection id is returned which can be used to disconnect
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@ t RadioButtonsc B s8 e Z d Z d d d Z d Z d Z d Z RS( sN
A GUI neutral radio button
The following attributes are exposed
ax - the Axes instance the buttons are in
activecolor - the color of the button when clicked
labels - a list of text.Text instances
circles - a list of patch.Circle instances
Connect to the RadioButtons with the on_clicked method
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Add radio buttons to axes.Axes instance ax
labels is a len(buttons) list of labels as strings
active is the index into labels for the button that is active
activecolor is the color of the button when clicked
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When the button is clicked, call this func with button label
A connection id is returned which can be used to disconnect
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1 t SubplotToolc B sM e Z d Z d Z d Z d Z d Z d Z d Z d Z RS( s3
A tool to adjust to subplot params of fig
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targetfig is the figure to adjust
toolfig is the figure to embed the the subplot tool into. If
None, a default pylab figure will be created. If you are
using this from the GUI
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A horizontal and vertical line span the axes that and move with
the pointer. You can turn off the hline or vline spectively with
the attributes
horizOn =True|False: controls visibility of the horizontal line
vertOn =True|False: controls visibility of the horizontal line
And the visibility of the cursor itself with visible attribute
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Add a cursor to ax. If useblit=True, use the backend
dependent blitting features for faster updates (GTKAgg only
now). lineprops is a dictionary of line properties. See
examples/widgets/cursor.py.
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t MultiCursorc B s5 e Z d Z e d Z d Z d Z d Z RS( s
Provide a vertical line cursor shared between multiple axes
from matplotlib.widgets import MultiCursor
from pylab import figure, show, nx
t = nx.arange(0.0, 2.0, 0.01)
s1 = nx.sin(2*nx.pi*t)
s2 = nx.sin(4*nx.pi*t)
fig = figure()
ax1 = fig.add_subplot(211)
ax1.plot(t, s1)
ax2 = fig.add_subplot(212, sharex=ax1)
ax2.plot(t, s2)
multi = MultiCursor(fig.canvas, (ax1, ax2), color='r', lw=1)
show()
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sg
Select a min/max range of the x or y axes for a matplotlib Axes
Example usage:
ax = subplot(111)
ax.plot(x,y)
def onselect(vmin, vmax):
print vmin, vmax
span = SpanSelector(ax, onselect, 'horizontal')
onmove_callback is an optional callback that will be called on mouse move
with the span range
c C s | d j o t d d d d } n | | _ d | _ d | _ t | _ g | _ d | _ d | _ d | _
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Create a span selector in ax. When a selection is made, clear
the span and call onselect with
onselect(vmin, vmax)
and clear the span.
direction must be 'horizontal' or 'vertical'
If minspan is not None, ignore events smaller than minspan
The span rect is drawn with rectprops; default
rectprops = dict(facecolor='red', alpha=0.5)
set the visible attribute to False if you want to turn off
the functionality of the span selector
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t HorizontalSpanSelectorc B s e Z d Z RS( c K s9 d d k } | i d t t i | | | d | d S( Nis Use SpanSelector instead!R ( t warningst warnt DeprecationWarningR R ( R R% R RT R ( ( s8 /usr/lib64/python2.6/site-packages/matplotlib/widgets.pyR s ( R R R ( ( ( s8 /usr/lib64/python2.6/site-packages/matplotlib/widgets.pyR s t RectangleSelectorc B st e Z d Z d d d e d d d d Z d Z d Z d Z d Z d Z
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Z d Z
RS(
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Select a min/max range of the x axes for a matplotlib Axes
Example usage::
from matplotlib.widgets import RectangleSelector
from pylab import *
def onselect(eclick, erelease):
'eclick and erelease are matplotlib events at press and release'
print ' startposition : (%f, %f)' % (eclick.xdata, eclick.ydata)
print ' endposition : (%f, %f)' % (erelease.xdata, erelease.ydata)
print ' used button : ', eclick.button
def toggle_selector(event):
print ' Key pressed.'
if event.key in ['Q', 'q'] and toggle_selector.RS.active:
print ' RectangleSelector deactivated.'
toggle_selector.RS.set_active(False)
if event.key in ['A', 'a'] and not toggle_selector.RS.active:
print ' RectangleSelector activated.'
toggle_selector.RS.set_active(True)
x = arange(100)/(99.0)
y = sin(x)
fig = figure
ax = subplot(111)
ax.plot(x,y)
toggle_selector.RS = RectangleSelector(ax, onselect, drawtype='line')
connect('key_press_event', toggle_selector)
show()
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Create a selector in ax. When a selection is made, clear
the span and call onselect with
onselect(pos_1, pos_2)
and clear the drawn box/line. There pos_i are arrays of length 2
containing the x- and y-coordinate.
If minspanx is not None then events smaller than minspanx
in x direction are ignored(it's the same for y).
The rect is drawn with rectprops; default
rectprops = dict(facecolor='red', edgecolor = 'black',
alpha=0.5, fill=False)
The line is drawn with lineprops; default
lineprops = dict(color='black', linestyle='-',
linewidth = 2, alpha=0.5)
Use type if you want the mouse to draw a line, a box or nothing
between click and actual position ny setting
drawtype = 'line', drawtype='box' or drawtype = 'none'.
spancoords is one of 'data' or 'pixels'. If 'data', minspanx
and minspanx will be interpreted in the same coordinates as
the x and ya axis, if 'pixels', they are in pixels
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