fingertip_panel.py
Go to the documentation of this file.
00001 #!/usr/bin/env python
00002 # Software License Agreement (BSD License)
00003 #
00004 # Copyright (c) 2008, Willow Garage, Inc.
00005 # All rights reserved.
00006 #
00007 # Redistribution and use in source and binary forms, with or without
00008 # modification, are permitted provided that the following conditions
00009 # are met:
00010 #
00011 #  * Redistributions of source code must retain the above copyright
00012 #    notice, this list of conditions and the following disclaimer.
00013 #  * Redistributions in binary form must reproduce the above
00014 #    copyright notice, this list of conditions and the following
00015 #    disclaimer in the documentation and/or other materials provided
00016 #    with the distribution.
00017 #  * Neither the name of the Willow Garage nor the names of its
00018 #    contributors may be used to endorse or promote products derived
00019 #    from this software without specific prior written permission.
00020 #
00021 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00022 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00023 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00024 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
00025 # COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00026 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00027 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00028 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00029 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00030 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
00031 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00032 # POSSIBILITY OF SUCH DAMAGE.
00033 #
00034 
00035 PKG = 'fingertip_pressure'
00036 
00037 import roslib
00038 roslib.load_manifest(PKG)
00039 
00040 import sys
00041 import rospy
00042 from pr2_msgs.msg import PressureState
00043 import math
00044 
00045 from fingertip_pressure.colormap import color255
00046 from fingertip_pressure.msg import PressureInfo
00047 from geometry_msgs.msg import Vector3
00048 
00049 import wxversion
00050 wxversion.ensureMinimal("2.8")
00051 
00052 import wx
00053 import threading
00054 from wx import xrc
00055 
00056 NUMSENSORS = 22
00057 RATE = 5. #Hz 
00058 
00059 def txtcolor(data):
00060     (r,g,b)=color255(data)
00061     if r + g + b < 3 *128:
00062         (rt,gt,bt) = (255,255,255)
00063     else:
00064         (rt,gt,bt) = (0,0,0)
00065     return ("#%02x%02x%02x"%(r,g,b),"#%02x%02x%02x"%(rt,gt,bt))
00066 
00067 class GripperPressurePanel(wx.Panel):
00068     def __init__(self, parent, topic):
00069         wx.Panel.__init__(self, parent, wx.ID_ANY)
00070 
00071         # Set up UI
00072         sizer = wx.BoxSizer(wx.HORIZONTAL)
00073         self.panel0 = FingertipPressurePanel(self)
00074         self.panel1 = FingertipPressurePanel(self)
00075         sizer.Add(self.panel0.panel, 1, wx.EXPAND)
00076         sizer.AddSpacer(5)
00077         sizer.Add(self.panel1.panel, 1, wx.EXPAND)
00078         self.SetSizer(sizer)
00079 
00080         # Set up subscription
00081         self._mutex = threading.Lock()
00082         self.new_message_ = None
00083         self.new_info_ = None
00084         rospy.Subscriber(topic, PressureState, self.message_callback)
00085         rospy.Subscriber(topic+"_info", PressureInfo, self.info_callback)
00086 
00087         self.timer = wx.Timer(self, 1)
00088         self.Bind(wx.EVT_TIMER, self.on_timer, self.timer)
00089 
00090     def info_callback(self, message):
00091         self._mutex.acquire()
00092         self.new_info_ = message
00093         self._mutex.release()
00094 
00095     def message_callback(self, message):
00096         #print 'message_callback'
00097         self._mutex.acquire()
00098         
00099         self.new_message_ = message
00100        
00101         if not self.timer.IsRunning():
00102             self.timer.Start(1000./RATE, True)
00103             wx.CallAfter(self.display)
00104  
00105         self._mutex.release()
00106 
00107     def on_timer(self, event):
00108         #print 'timer'
00109         pass
00110 
00111     def display(self):
00112         self._mutex.acquire()
00113         
00114         if self.new_message_ != None:
00115             #print 'newmsg'
00116             
00117             self.panel0.new_message(self.new_message_.l_finger_tip)
00118             self.panel1.new_message(self.new_message_.r_finger_tip)
00119             
00120             self.new_message_ = None
00121         
00122             self.Refresh()
00123 
00124         if self.new_info_ != None:
00125             self.panel0.set_info(self.new_info_.sensor[0])
00126             self.panel1.set_info(self.new_info_.sensor[1])
00127             self.new_info_ = None
00128             self.Refresh()
00129 
00130         self._mutex.release()
00131 
00132 class FingertipPressurePanel:
00133     Newton = 'N';
00134     kPascal = 'kPa';
00135 
00136     def __init__(self, parent): 
00137         self._mutex = threading.Lock()
00138         xrc_path = roslib.packages.get_pkg_dir(PKG) + '/ui/fingertip_panel.xrc'
00139         panelxrc = xrc.XmlResource(xrc_path)
00140             
00141         self.panel = panelxrc.LoadPanel(parent, 'FingertipPressurePanel')
00142         
00143         bag =self.panel.GetSizer()
00144         bag.SetEmptyCellSize(wx.Size(0,0)) 
00145 
00146         self.scalings = None
00147         self.zeros = [0 for i in range(0,22)]
00148         self.recentmean = [0 for i in range(0,22)]
00149 
00150         self.pad = []
00151         for i in range(0, NUMSENSORS):
00152             self.pad.append(xrc.XRCCTRL(self.panel, 'pad%i'%i))
00153             self.pad[i].SetEditable(False)
00154             font = self.pad[i].GetFont()
00155             font.SetPointSize(6)
00156             self.pad[i].SetFont(font)
00157             self.pad[i].SetMinSize(wx.Size(40,35))
00158         self.frame_id_box = xrc.XRCCTRL(self.panel, 'frame_id')
00159 
00160         self.panel.Bind(wx.EVT_RADIOBUTTON, self.set_Newton, id=xrc.XRCID('button_N'))
00161         self.panel.Bind(wx.EVT_RADIOBUTTON, self.set_kPascal, id=xrc.XRCID('button_kPa'))
00162         self.unit = self.Newton
00163         
00164         self.panel.Bind(wx.EVT_CHECKBOX, self.set_Zero, id=xrc.XRCID('button_Zero'))
00165 
00166     def set_Newton(self, event):
00167         self._mutex.acquire()
00168         self.unit = self.Newton
00169         self._mutex.release()
00170 
00171     def set_kPascal(self, event):
00172         self._mutex.acquire()
00173         self.unit = self.kPascal     
00174         self._mutex.release()
00175 
00176     def set_Zero(self, event):
00177         self._mutex.acquire()
00178         cb = event.GetEventObject()
00179         if cb.IsChecked():
00180             self.zeros = list(self.recentmean);
00181         else:
00182             self.zeros = [0 for i in range(0,22)]
00183         self._mutex.release()
00184 
00185     def calc_area(self,u,v):
00186         w = Vector3()
00187         w.x = u.y * v.z - u.z * v.y
00188         w.y = u.z * v.x - u.x * v.z
00189         w.z = u.x * v.y - u.y * v.x
00190         return math.sqrt(w.x*w.x + w.y*w.y + w.z*w.z)
00191 
00192     def set_info(self, info):
00193         self._mutex.acquire()
00194         self.scalings = info.force_per_unit
00195         self.areas = [self.calc_area(info.halfside1[i], info.halfside2[i]) * 4 for i in range(0,22)]
00196         self.frame_id_box.SetValue(info.frame_id)
00197         self._mutex.release()
00198 
00199     def new_message(self, data):
00200         self._mutex.acquire()
00201         #print "FingertipPressurePanel new_message"
00202         for i in range(0, NUMSENSORS):
00203             #print repr(color(data[i]))
00204             #print txtcolor(data[i])
00205             self.recentmean[i] = 0.8 * self.recentmean[i] + 0.2 * data[i]
00206             dat = data[i] - self.zeros[i]
00207             if self.scalings != None:
00208                 if self.unit == self.kPascal:
00209                     val = dat / self.scalings[i] / self.areas[i] / 1e3
00210                     colval = val / 30.
00211                     scaled = '%.0f'%val
00212                 else:
00213                     val = dat / self.scalings[i]
00214                     colval = val / 3.
00215                     scaled = '%.2f'%val
00216             else:
00217                 val = dat
00218                 colval = val / 6000.
00219                 scaled = '??'
00220             (colb,colf)=txtcolor(colval)
00221             self.pad[i].SetBackgroundColour(colb)
00222             self.pad[i].SetForegroundColour(colf)
00223             self.pad[i].SetValue('#%i\n%i\n%s %s'%(i,dat,scaled,self.unit))
00224         self._mutex.release()
00225            


fingertip_pressure
Author(s): Blaise Gassend/blaise@willowgarage.com
autogenerated on Thu Apr 24 2014 15:43:41