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graph.py
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graph.py
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import Queue
import wx
import wx.lib.plot
import logger
import time
import threading
import os
class GetNumBox(wx.Dialog):
def __init__(self, parent, xRange = None, prompt="Number", title="Num", text=""):
wx.Dialog.__init__(self, parent, id=wx.ID_ANY, title = "Enter A Number")
class GraphInfoBox(wx.Dialog):
def __init__(self, parent, xRange=(0,100), yRange=(0,100), xmin=0, xmax=99999999, ymin=0, ymax=4096, xunits="Seconds", yunits="units"):
wx.Dialog.__init__ ( self, parent, id = wx.ID_ANY, title = "Graph Information" )
ico = wx.Icon('OFSI-Logo.ico', wx.BITMAP_TYPE_ICO )
self.SetIcon( ico )
xcheck = False
ycheck = False
if xRange is None:
xcheck = True
xRange = (0,0)
if yRange is None:
ycheck = True
yRange = (0,0)
# -- create window controls --
self.mainSizer = wx.BoxSizer( wx.VERTICAL )
self.mainSizer.AddSpacer( ( 0, 10), 0, wx.EXPAND, 5 )
txt2 = wx.StaticText( self, wx.ID_ANY, "Graph Dimensions:", wx.DefaultPosition, wx.DefaultSize, 0 )
self.mainSizer.Add( txt2, 0, wx.LEFT|wx.TOP, 10 )
axisSplit = wx.BoxSizer( wx.HORIZONTAL )
xSizer = wx.BoxSizer( wx.VERTICAL )
ySizer = wx.BoxSizer( wx.VERTICAL )
axisSplit.Add( xSizer, 0, wx.EXPAND|wx.LEFT|wx.RIGHT, 15)
axisSplit.Add( ySizer, 0, wx.EXPAND|wx.LEFT|wx.RIGHT, 15)
self.mainSizer.Add(axisSplit, 0, wx.ALL, 5)
# add controls for x axis
xdimSizer = wx.BoxSizer( wx.HORIZONTAL )
self.xLower = wx.TextCtrl( self, wx.ID_ANY, str(xRange[0]), wx.DefaultPosition, wx.Size( 45,-1 ), 0 )
self.xUpper = wx.TextCtrl( self, wx.ID_ANY, str(xRange[1]), wx.DefaultPosition, wx.Size( 45,-1 ), 0 )
xtxt2 = wx.StaticText( self, wx.ID_ANY, " - " , wx.DefaultPosition, wx.DefaultSize, 0 )
xdimSizer.Add( self.xLower, 1, wx.BOTTOM, 5 )
xdimSizer.Add( xtxt2, 0, 0, 5 )
xdimSizer.Add( self.xUpper, 1, wx.BOTTOM, 5 )
if xunits is not None:
xtitle = "X Axis (" + xunits + ") :"
else:
xtitle = "X Axis :"
xtxt = wx.StaticText( self, wx.ID_ANY, xtitle , wx.DefaultPosition, wx.DefaultSize, 0 )
self.xautoScale = wx.CheckBox(self, wx.ID_ANY, "Autoscale", wx.DefaultPosition, wx.DefaultSize, 0)
self.xautoScale.SetValue(xcheck)
xSizer.Add(xtxt, 0, wx.ALL, 5)
xSizer.Add(xdimSizer, 0, wx.ALL, 5)
xSizer.Add(self.xautoScale, 0, wx.LEFT, 10)
# add controls for y axis
ydimSizer = wx.BoxSizer( wx.HORIZONTAL )
self.yLower = wx.TextCtrl( self, wx.ID_ANY, str(yRange[0]), wx.DefaultPosition, wx.Size( 45,-1 ), 0 )
self.yUpper = wx.TextCtrl( self, wx.ID_ANY, str(yRange[1]), wx.DefaultPosition, wx.Size( 45,-1 ), 0 )
ytxt2 = wx.StaticText( self, wx.ID_ANY, " - " , wx.DefaultPosition, wx.DefaultSize, 0 )
ydimSizer.Add( self.yLower, 1, wx.BOTTOM, 5 )
ydimSizer.Add( ytxt2, 0, wx.BOTTOM, 5 )
ydimSizer.Add( self.yUpper, 1, wx.BOTTOM, 5 )
if yunits is not None:
ytitle = "Y Axis (" + yunits + ") :"
else:
ytitle = "Y Axis :"
ytxt = wx.StaticText( self, wx.ID_ANY, ytitle , wx.DefaultPosition, wx.DefaultSize, 0 )
self.yautoScale = wx.CheckBox(self, wx.ID_ANY, "Autoscale", wx.DefaultPosition, wx.DefaultSize, 0)
self.yautoScale.SetValue(ycheck)
ySizer.Add(ytxt, 0, wx.ALL, 5)
ySizer.Add(ydimSizer, 0, wx.ALL, 5)
ySizer.Add(self.yautoScale, 0, wx.LEFT, 10)
# add OK/Cancel button controls
#btnSizer = self.CreateButtonSizer( wx.OK | wx.CANCEL )
btnSizer = wx.BoxSizer( wx.HORIZONTAL )
okBtn = wx.Button( self, wx.ID_ANY, "OK", wx.DefaultPosition, wx.DefaultSize, 0 )
cancelBtn = wx.Button( self, wx.ID_ANY, "Cancel", wx.DefaultPosition, wx.DefaultSize, 0 )
btnSizer.Add( okBtn, 1, wx.ALIGN_RIGHT, 5 )
btnSizer.Add( cancelBtn, 1, wx.ALIGN_RIGHT, 5 )
self.mainSizer.Add( btnSizer, 1, wx.ALIGN_RIGHT, 5 )
# set default buttons
self.SetAffirmativeId(okBtn.GetId())
self.SetEscapeId(cancelBtn.GetId())
self.SetSizer( self.mainSizer )
self.Layout()
self.Fit()
self.Centre( wx.BOTH )
self.On_X_Autoscale(None)
self.On_Y_Autoscale(None)
# -- Connect Events --
self.xautoScale.Bind( wx.EVT_CHECKBOX, self.On_X_Autoscale )
self.yautoScale.Bind( wx.EVT_CHECKBOX, self.On_Y_Autoscale )
okBtn.Bind( wx.EVT_BUTTON, self.On_OK )
cancelBtn.Bind( wx.EVT_BUTTON, self.On_Cancel )
self.Bind( wx.EVT_CLOSE, self.On_Close )
def On_Y_Autoscale(self, event):
enabled = not self.yautoScale.GetValue()
self.yLower.Enable( enabled )
self.yUpper.Enable( enabled )
def On_X_Autoscale(self, event):
enabled = not self.xautoScale.GetValue()
self.xLower.Enable( enabled )
self.xUpper.Enable( enabled )
def On_Close(self, event):
self.EndModal(wx.ID_CANCEL)
pass
def On_Cancel(self, event):
self.EndModal(wx.ID_CANCEL)
def On_OK(self, event):
if self.xautoScale.GetValue():
self.xRange = None
else:
try:
self.xMin = float(self.xLower.GetValue())
except ValueError:
self.xMin = 0
try:
self.xMax = float(self.xUpper.GetValue())
except ValueError:
self.xMin = 0
self.xMax = 0
self.xRange = (self.xMin, self.xMax )
if self.yautoScale.GetValue():
self.yRange = None
else:
try:
self.yMin = float(self.yLower.GetValue())
except ValueError:
self.yMin = 0
try:
self.yMax = float(self.yUpper.GetValue())
except ValueError:
self.yMin = 0
self.yMax = 0
self.yRange = (self.yMin, self.yMax )
self.EndModal(wx.ID_OK)
class GraphFrame(wx.Frame):
def __init__(self, parent, xRange=None, yRange=None, xSize=None, ySize=None, nPoints=None, header=None, title="Graph", xlabel="Seconds", ylabel="Value", showPoints=False):
self.max_X = xSize
self.max_Y = ySize
self.xRange = xRange
self.yRange = yRange
self.nPoints = nPoints
self.showPoints = showPoints
if self.nPoints is not None:
self.dataQueue = Queue.Queue(self.nPoints)
self.title = title
self.xlabel = xlabel
self.ylabel = ylabel
self.outFile = None
self.header = header
if self.header is None:
date = '"' + time.asctime() + '"'
self.header = date
wndsize = wx.Size(500,500)
self.pending = False
# initialize frame object
wx.Frame.__init__(self, parent, id=wx.ID_ANY, title=self.title , pos=wx.DefaultPosition, size=wndsize)
ico = wx.Icon('OFSI-Logo.ico', wx.BITMAP_TYPE_ICO )
self.SetIcon( ico )
# add menubar
self.menuBar = wx.MenuBar( 0 )
self.fileMenu = wx.Menu()
self.editMenu = wx.Menu()
self.menuBar.Append(self.fileMenu, "File")
self.menuBar.Append(self.editMenu, "Edit")
# create menu items
save = wx.MenuItem( self.fileMenu, wx.ID_ANY, "Save", "Saves the current graph", wx.ITEM_NORMAL )
close = wx.MenuItem( self.fileMenu, wx.ID_ANY, "Close", "Closes the graph window", wx.ITEM_NORMAL )
setAxis = wx.MenuItem( self.fileMenu, wx.ID_ANY, "Dimensions", "Changes the graph dimensions", wx.ITEM_NORMAL )
# append menu items
self.fileMenu.AppendItem(save)
self.fileMenu.AppendItem(close)
self.editMenu.AppendItem(setAxis)
# bind items
self.Bind( wx.EVT_MENU, self.OnClose, id=close.GetId() )
self.Bind( wx.EVT_MENU, self.OnResize, id=setAxis.GetId() )
self.Bind( wx.EVT_MENU, self.OnSave, id=save.GetId() )
self.SetMenuBar( self.menuBar)
# add plot
self.mainSizer = wx.BoxSizer(wx.VERTICAL)
self.plot = wx.lib.plot.PlotCanvas(self, size=wx.Size(500,500), style=wx.EXPAND)
self.plot.SetShowScrollbars(True)
# add points
self.data = dict()
self.displayData = dict()
if self.max_X is not None:
lastX = self.max_X/2.0
elif self.xRange is not None:
lastX = xRange[0]
else:
lastX = 0
if self.max_Y is not None:
lastY = self.max_Y/2.0
elif self.yRange is not None:
lastY = yRange[0]
else:
lastY = 0
self.lastpoint = (lastX, lastY)
self.updateTimer = None
self.mainSizer.Add(self.plot, 1, wx.EXPAND, 0)
self.SetSizer(self.mainSizer)
self.Layout
self.Bind(wx.EVT_CLOSE,self.OnClose)
def updateData(self):
lines = []
if not self.data:
lines.append( wx.lib.plot.PolyLine([self.lastpoint], colour="black", width=1) )
else:
for idx in self.data:
if self.showPoints:
lines.append( wx.lib.plot.PolyMarker(self.data[idx], colour="black", width=2, fillstyle=wx.SOLID, fillcolour="black", size=1, marker="circle") )
lines.append( wx.lib.plot.PolyMarker(self.displayData[idx], colour="black", width=2, fillstyle=wx.SOLID, fillcolour="black", size=1, marker="circle") )
if self.nPoints > 0:
lines.append( wx.lib.plot.PolyLine(self.displayData[idx], colour="red", width=1) )
else:
lines.append( wx.lib.plot.PolyLine(self.data[idx], colour="blue", width=1) )
#lines.append( wx.lib.plot.PolyLine(self.dataQueue, colour="green", width=1) )
pg = wx.lib.plot.PlotGraphics(lines, self.title, self.xlabel, self.ylabel)
if self.max_X is not None:
self.xRange = ( self.lastpoint[0] - self.max_X/2.0, self.lastpoint[0] + self.max_X/2.0 )
if self.max_Y is not None:
self.yRange = ( self.lastpoint[1] - self.max_Y/2.0, self.lastpoint[1] + self.max_Y/2.0 )
self.plot.Draw(pg, self.xRange, self.yRange)
self.pending = False
def addPoint(self, x, y, idx):
if idx not in self.data:
self.data[idx] = []
self.displayData[idx] = []
self.data[idx].append((x,y))
self.displayData[idx].append((x,y))
#if self.dataQueue.full():
# self.dataQueue.get()
#self.dataQueue.put((x,y))
#if self.nPoints > 0:
# self.xRange =
if self.nPoints > 0:
tPoints = 0
for c in self.displayData:
tPoints += len( self.displayData[c] )
if tPoints > self.nPoints:
self.displayData[idx].pop(0)
self.lastpoint = (x,y)
if not self.pending:
self.pending = True
def update():
self.updateData()
self.updateTimer = threading.Timer(.5,update)
self.updateTimer.start()
def OnResize(self, event):
info = GraphInfoBox(self, xRange=self.xRange, yRange=self.yRange, xunits=self.xlabel, yunits=self.ylabel)
if info.ShowModal() == wx.ID_OK:
self.xRange = info.xRange
self.yRange = info.yRange
self.updateData()
def OnSave(self, event):
filetypes = "CSV files (*.csv)|*.csv|Text files (*.txt)|*.txt|All files|*"
dlg = wx.FileDialog(self, "Choose a file", style=wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT, wildcard=filetypes)
outFile = None
if dlg.ShowModal()==wx.ID_OK:
try:
filename=dlg.GetFilename()
dirname=dlg.GetDirectory()
fullPath = os.path.join(dirname, filename)
self.SetTitle( self.title + " - " + filename )
outFile = open(fullPath, "w")
# write header info
outFile.write( self.header )
outFile.write( "\n" )
for idx in self.data:
outFile.write(", X" + str(idx) )
outFile.write(", Y" + str(idx) )
outFile.write( "\n" )
# write data
nData = 0
for idx in self.data:
if len(self.data[idx]) > nData:
nData = len( self.data[idx] )
for n in range( nData ):
for idx in self.data:
try:
strfmt = ",{0:.5f},{1}".format(self.data[idx][n][0], self.data[idx][n][1])
outFile.write(strfmt)
except IndexError:
pass
outFile.write( "\n")
outFile.close()
except IOError as e:
logger.log("Error opening file", e, logger.WARNING)
logger.message("Error opening file.", logger.ERROR)
except ValueError as e:
logger.log("Error writing file", e, logger.WARNING)
logger.message("Error writing file.", logger.ERROR)
dlg.Destroy()
def OnClose(self, event):
if self.updateTimer is not None: self.updateTimer.cancel()
self.Destroy()