Package Scientific :: Package TkWidgets :: Module TkPlotCanvas :: Class PlotCanvas

Class PlotCanvas

  Tkinter.Misc --+            
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Tkinter.BaseWidget --+        
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      Tkinter.Pack --+        
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     Tkinter.Place --+        
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      Tkinter.Grid --+        
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        Tkinter.Widget --+    
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             Tkinter.Frame --+
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                            PlotCanvas

Tk plot widget

PlotCanvas objects support all operations of Tk widgets.

Nested Classes
Inherited from `Tkinter.Misc`: `getdouble`, `getint`

Instance Methods

__init__(self, master, width, height, background='white', font='-*-helvetica-medium-r-normal--10-*-*-*-*-*-*-*', **attr)
Construct a frame widget with the parent MASTER.

bind(self, *args)
Bind to this widget at event SEQUENCE a call to function FUNC.

clear(self)
Clear the canvas

draw(self, graphics, xaxis=None, yaxis=None)
Draw something on the canvas

reconfigure(self, event)

redraw(self)
Redraw the most recent canvas contents

select(self, range)
Highlight a range on the x-axis

Inherited from Tkinter.BaseWidget: destroy

Inherited from Tkinter.Misc: __getitem__, __setitem__, __str__, after, after_cancel, after_idle, bbox, bell, bind_all, bind_class, bindtags, cget, clipboard_append, clipboard_clear, clipboard_get, colormodel, columnconfigure, config, configure, deletecommand, event_add, event_delete, event_generate, event_info, focus, focus_displayof, focus_force, focus_get, focus_lastfor, focus_set, getboolean, getvar, grab_current, grab_release, grab_set, grab_set_global, grab_status, grid_bbox, grid_columnconfigure, grid_location, grid_propagate, grid_rowconfigure, grid_size, grid_slaves, image_names, image_types, keys, lift, lower, mainloop, nametowidget, option_add, option_clear, option_get, option_readfile, pack_propagate, pack_slaves, place_slaves, propagate, quit, register, rowconfigure, selection_clear, selection_get, selection_handle, selection_own, selection_own_get, send, setvar, size, slaves, tk_bisque, tk_focusFollowsMouse, tk_focusNext, tk_focusPrev, tk_menuBar, tk_setPalette, tk_strictMotif, tkraise, unbind, unbind_all, unbind_class, update, update_idletasks, wait_variable, wait_visibility, wait_window, waitvar, winfo_atom, winfo_atomname, winfo_cells, winfo_children, winfo_class, winfo_colormapfull, winfo_containing, winfo_depth, winfo_exists, winfo_fpixels, winfo_geometry, winfo_height, winfo_id, winfo_interps, winfo_ismapped, winfo_manager, winfo_name, winfo_parent, winfo_pathname, winfo_pixels, winfo_pointerx, winfo_pointerxy, winfo_pointery, winfo_reqheight, winfo_reqwidth, winfo_rgb, winfo_rootx, winfo_rooty, winfo_screen, winfo_screencells, winfo_screendepth, winfo_screenheight, winfo_screenmmheight, winfo_screenmmwidth, winfo_screenvisual, winfo_screenwidth, winfo_server, winfo_toplevel, winfo_viewable, winfo_visual, winfo_visualid, winfo_visualsavailable, winfo_vrootheight, winfo_vrootwidth, winfo_vrootx, winfo_vrooty, winfo_width, winfo_x, winfo_y

Inherited from Tkinter.Pack: forget, info, pack, pack_configure, pack_forget, pack_info

Inherited from Tkinter.Place: place, place_configure, place_forget, place_info

Inherited from Tkinter.Grid: grid, grid_configure, grid_forget, grid_info, grid_remove, location

Class Variables
Inherited from `Tkinter.Misc`: `_noarg_`

Method Details

init(self, master, width, height, background=`'white'`, font=`'--helvetica-medium-r-normal--10-------'`, **attr)
(Constructor)

Construct a frame widget with the parent MASTER.

Valid resource names: background, bd, bg, borderwidth, class, colormap, container, cursor, height, highlightbackground, highlightcolor, highlightthickness, relief, takefocus, visual, width.

Parameters:

master - the parent widget
width (int) - the initial width of the canvas
height (int) - the initial height of the canvas
background (str) - the background color
font (str) - the font used for the axis labels
attr - widget attributes
zoom (bool) - a flag that indicates whether interactive zooming (using the left mouse button) is enabled; the default is False (no zoom)
select - enables the user to select a range along the x axis by dragging the mouse (with the left button pressed) in the area under the x axis. If select is 0, no selection is possible. Otherwise the value of select must be a callable object that is called whenever the selection changes, with a single argument that can be None (no selection) or a tuple containing two x values.

Overrides: Tkinter.BaseWidget.__init__

bind(self, *args)

Bind to this widget at event SEQUENCE a call to function FUNC.

SEQUENCE is a string of concatenated event patterns. An event pattern is of the form <MODIFIER-MODIFIER-TYPE-DETAIL> where MODIFIER is one of Control, Mod2, M2, Shift, Mod3, M3, Lock, Mod4, M4, Button1, B1, Mod5, M5 Button2, B2, Meta, M, Button3, B3, Alt, Button4, B4, Double, Button5, B5 Triple, Mod1, M1. TYPE is one of Activate, Enter, Map, ButtonPress, Button, Expose, Motion, ButtonRelease FocusIn, MouseWheel, Circulate, FocusOut, Property, Colormap, Gravity Reparent, Configure, KeyPress, Key, Unmap, Deactivate, KeyRelease Visibility, Destroy, Leave and DETAIL is the button number for ButtonPress, ButtonRelease and DETAIL is the Keysym for KeyPress and KeyRelease. Examples are <Control-Button-1> for pressing Control and mouse button 1 or <Alt-A> for pressing A and the Alt key (KeyPress can be omitted). An event pattern can also be a virtual event of the form <<AString>> where AString can be arbitrary. This event can be generated by event_generate. If events are concatenated they must appear shortly after each other.

FUNC will be called if the event sequence occurs with an instance of Event as argument. If the return value of FUNC is "break" no further bound function is invoked.

An additional boolean parameter ADD specifies whether FUNC will be called additionally to the other bound function or whether it will replace the previous function.

Bind will return an identifier to allow deletion of the bound function with unbind without memory leak.

If FUNC or SEQUENCE is omitted the bound function or list of bound events are returned.

Overrides: Tkinter.Misc.bind: (inherited documentation)

draw(self, graphics, xaxis=None, yaxis=None)

Draw something on the canvas

Parameters:

graphics - the graphics object (PolyLine, PolyMarker, or PlotGraphics) to be drawn
xaxis - None (no x-axis), "automatic" (automatic scaling), or a pair (x1, x2) defining the range of the x-axis
yaxis - None (no y-axis), "automatic" (automatic scaling), or a pair (y1, y2) defining the range of the y-axis

select(self, range)

Highlight a range on the x-axis

Parameters:

range - the range on the x-axis to be highlighted. It can be None (no selection) or a sequence of two values on the x-axis.

Class PlotCanvas

__init__(self, master, width, height, background='white', font='-*-helvetica-medium-r-normal--10-*-*-*-*-*-*-*', **attr) (Constructor)

bind(self, *args)

draw(self, graphics, xaxis=None, yaxis=None)

select(self, range)

init(self, master, width, height, background=`'white'`, font=`'--helvetica-medium-r-normal--10-------'`, **attr)
(Constructor)