Ignore:
Timestamp:
07/29/10 19:13:46 (14 years ago)
Author:
Kana Sugimoto
Message:

New Development: Yes

JIRA Issue: No (test merging alma branch)

Ready for Test: Yes

Interface Changes: Yes

What Interface Changed:

Test Programs:

Put in Release Notes: No

Module(s):

Description:


Location:
branches/mergetest
Files:
2 edited

Legend:

Unmodified
Added
Removed

  • branches/mergetest

  • branches/mergetest/python/asaplotgui.py

    r1563 r1779  
    5656        self.window.lift()
    5757
    58     def position(self):
    59         """
    60         Use the mouse to get a position from a graph.
    61         """
    62 
    63         def position_disable(event):
    64             self.register('button_press', None)
    65             print '%.4f, %.4f' % (event.xdata, event.ydata)
    66 
    67         print 'Press any mouse button...'
    68         self.register('button_press', position_disable)
    69 
    70 
    7158    def quit(self):
    7259        """
    … …  
    7461        """
    7562        self.window.destroy()
    76 
    77 
    78     def region(self):
    79         """
    80         Use the mouse to get a rectangular region from a plot.
    81 
    82         The return value is [x0, y0, x1, y1] in world coordinates.
    83         """
    84 
    85         def region_start(event):
    86             height = self.canvas.figure.bbox.height()
    87             self.rect = {'fig': None, 'height': height,
    88                          'x': event.x, 'y': height - event.y,
    89                          'world': [event.xdata, event.ydata,
    90                                    event.xdata, event.ydata]}
    91             self.register('button_press', None)
    92             self.register('motion_notify', region_draw)
    93             self.register('button_release', region_disable)
    94 
    95         def region_draw(event):
    96             self.canvas._tkcanvas.delete(self.rect['fig'])
    97             self.rect['fig'] = self.canvas._tkcanvas.create_rectangle(
    98                                 self.rect['x'], self.rect['y'],
    99                                 event.x, self.rect['height'] - event.y)
    100 
    101         def region_disable(event):
    102             self.register('motion_notify', None)
    103             self.register('button_release', None)
    104 
    105             self.canvas._tkcanvas.delete(self.rect['fig'])
    106 
    107             self.rect['world'][2:4] = [event.xdata, event.ydata]
    108             print '(%.2f, %.2f)  (%.2f, %.2f)' % (self.rect['world'][0],
    109                 self.rect['world'][1], self.rect['world'][2],
    110                 self.rect['world'][3])
    111 
    112         self.register('button_press', region_start)
    113 
    114         # This has to be modified to block and return the result (currently
    115         # printed by region_disable) when that becomes possible in matplotlib.
    116 
    117         return [0.0, 0.0, 0.0, 0.0]
    118 
    119 
    120     def register(self, type=None, func=None):
    121         """
    122         Register, reregister, or deregister events of type 'button_press',
    123         'button_release', or 'motion_notify'.
    124 
    125         The specified callback function should have the following signature:
    126 
    127             def func(event)
    128 
    129         where event is an MplEvent instance containing the following data:
    130 
    131             name                # Event name.
    132             canvas              # FigureCanvas instance generating the event.
    133             x      = None       # x position - pixels from left of canvas.
    134             y      = None       # y position - pixels from bottom of canvas.
    135             button = None       # Button pressed: None, 1, 2, 3.
    136             key    = None       # Key pressed: None, chr(range(255)), shift,
    137                                   win, or control
    138             inaxes = None       # Axes instance if cursor within axes.
    139             xdata  = None       # x world coordinate.
    140             ydata  = None       # y world coordinate.
    141 
    142         For example:
    143 
    144             def mouse_move(event):
    145                 print event.xdata, event.ydata
    146 
    147             a = asaplot()
    148             a.register('motion_notify', mouse_move)
    149 
    150         If func is None, the event is deregistered.
    151 
    152         Note that in TkAgg keyboard button presses don't generate an event.
    153         """
    154 
    155         if not self.events.has_key(type): return
    156 
    157         if func is None:
    158             if self.events[type] is not None:
    159                 # It's not clear that this does anything.
    160                 self.canvas.mpl_disconnect(self.events[type])
    161                 self.events[type] = None
    162 
    163                 # It seems to be necessary to return events to the toolbar.
    164                 if type == 'motion_notify':
    165                     self.canvas.mpl_connect(type + '_event',
    166                         self.figmgr.toolbar.mouse_move)
    167                 elif type == 'button_press':
    168                     self.canvas.mpl_connect(type + '_event',
    169                         self.figmgr.toolbar.press)
    170                 elif type == 'button_release':
    171                     self.canvas.mpl_connect(type + '_event',
    172                         self.figmgr.toolbar.release)
    173 
    174         else:
    175             self.events[type] = self.canvas.mpl_connect(type + '_event', func)
    176 
    17763
    17864    def show(self, hardrefresh=True):
Note: See TracChangeset for help on using the changeset viewer.