X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/48023e151f006927dc8be260a63360793678b9cb..16541a4ef4c409e27a047f898f9d770bdcfa9f30:/wxPython/wx/lib/plot.py?ds=sidebyside diff --git a/wxPython/wx/lib/plot.py b/wxPython/wx/lib/plot.py index 5fabf66063..59f7f37c61 100644 --- a/wxPython/wx/lib/plot.py +++ b/wxPython/wx/lib/plot.py @@ -92,20 +92,23 @@ import string as _string import time as _time import wx -# Needs Numeric or numarray +# Needs Numeric or numarray or NumPy try: - import Numeric as _Numeric + import numpy as _Numeric except: try: import numarray as _Numeric #if numarray is used it is renamed Numeric except: - msg= """ - This module requires the Numeric or numarray module, - which could not be imported. It probably is not installed - (it's not part of the standard Python distribution). See the - Python site (http://www.python.org) for information on - downloading source or binaries.""" - raise ImportError, "Numeric or numarray not found. \n" + msg + try: + import Numeric as _Numeric + except: + msg= """ + This module requires the Numeric/numarray or NumPy module, + which could not be imported. It probably is not installed + (it's not part of the standard Python distribution). See the + Numeric Python site (http://numpy.scipy.org) for information on + downloading source or binaries.""" + raise ImportError, "Numeric,numarray or NumPy not found. \n" + msg @@ -118,7 +121,8 @@ class PolyPoints: """ def __init__(self, points, attr): - self.points = _Numeric.array(points) + self._points = _Numeric.array(points).astype(_Numeric.Float64) + self._logscale = (False, False) self.currentScale= (1,1) self.currentShift= (0,0) self.scaled = self.points @@ -129,12 +133,34 @@ class PolyPoints: raise KeyError, "Style attribute incorrect. Should be one of %s" % self._attributes.keys() self.attributes[name] = value + def setLogScale(self, logscale): + self._logscale = logscale + + def __getattr__(self, name): + if name == 'points': + if len(self._points)>0: + data = _Numeric.array(self._points,copy=True) + if self._logscale[0]: + data = self.log10(data, 0) + if self._logscale[1]: + data = self.log10(data, 1) + return data + else: + return self._points + else: + raise AttributeError, name + + def log10(self, data, ind): + data = _Numeric.compress(data[:,ind]>0,data,0) + data[:,ind] = _Numeric.log10(data[:,ind]) + return data + def boundingBox(self): if len(self.points) == 0: # no curves to draw # defaults to (-1,-1) and (1,1) but axis can be set in Draw - minXY= _Numeric.array([-1,-1]) - maxXY= _Numeric.array([ 1, 1]) + minXY= _Numeric.array([-1.0,-1.0]) + maxXY= _Numeric.array([ 1.0, 1.0]) else: minXY= _Numeric.minimum.reduce(self.points) maxXY= _Numeric.maximum.reduce(self.points) @@ -201,7 +227,9 @@ class PolyLine(PolyPoints): colour = self.attributes['colour'] width = self.attributes['width'] * printerScale style= self.attributes['style'] - pen = wx.Pen(wx.NamedColour(colour), width, style) + if not isinstance(colour, wx.Colour): + colour = wx.NamedColour(colour) + pen = wx.Pen(colour, width, style) pen.SetCap(wx.CAP_BUTT) dc.SetPen(pen) if coord == None: @@ -262,11 +290,16 @@ class PolyMarker(PolyPoints): fillstyle = self.attributes['fillstyle'] marker = self.attributes['marker'] - dc.SetPen(wx.Pen(wx.NamedColour(colour), width)) + if colour and not isinstance(colour, wx.Colour): + colour = wx.NamedColour(colour) + if fillcolour and not isinstance(fillcolour, wx.Colour): + fillcolour = wx.NamedColour(fillcolour) + + dc.SetPen(wx.Pen(colour, width)) if fillcolour: - dc.SetBrush(wx.Brush(wx.NamedColour(fillcolour),fillstyle)) + dc.SetBrush(wx.Brush(fillcolour,fillstyle)) else: - dc.SetBrush(wx.Brush(wx.NamedColour(colour), fillstyle)) + dc.SetBrush(wx.Brush(colour, fillstyle)) if coord == None: self._drawmarkers(dc, self.scaled, marker, size) else: @@ -343,6 +376,14 @@ class PlotGraphics: self.xLabel= xLabel self.yLabel= yLabel + def setLogScale(self, logscale): + if type(logscale) != tuple: + raise TypeError, 'logscale must be a tuple of bools, e.g. (False, False)' + if len(self.objects) == 0: + return + for o in self.objects: + o.setLogScale(logscale) + def boundingBox(self): p1, p2 = self.objects[0].boundingBox() for o in self.objects[1:]: @@ -415,30 +456,63 @@ class PlotGraphics: #------------------------------------------------------------------------------- # Main window that you will want to import into your application. -class PlotCanvas(wx.Window): - """Subclass of a wx.Window to allow simple general plotting +class PlotCanvas(wx.Panel): + """ + Subclass of a wx.Panel which holds two scrollbars and the actual + plotting canvas (self.canvas). It allows for simple general plotting of data with zoom, labels, and automatic axis scaling.""" - def __init__(self, parent, id = -1, pos=wx.DefaultPosition, - size=wx.DefaultSize, style= wx.DEFAULT_FRAME_STYLE, name= ""): - """Constucts a window, which can be a child of a frame, dialog or + def __init__(self, parent): + """Constructs a panel, which can be a child of a frame or any other non-control window""" - wx.Window.__init__(self, parent, id, pos, size, style, name) + wx.Panel.__init__(self, parent) + + sizer = wx.FlexGridSizer(2,2,0,0) + self.canvas = wx.Window(self, -1) + self.sb_vert = wx.ScrollBar(self, -1, style=wx.SB_VERTICAL) + self.sb_vert.SetScrollbar(0,1000,1000,1000) + self.sb_hor = wx.ScrollBar(self, -1, style=wx.SB_HORIZONTAL) + self.sb_hor.SetScrollbar(0,1000,1000,1000) + + sizer.Add(self.canvas, 1, wx.EXPAND) + sizer.Add(self.sb_vert, 0, wx.EXPAND) + sizer.Add(self.sb_hor, 0, wx.EXPAND) + sizer.Add((0,0)) + + sizer.AddGrowableRow(0, 1) + sizer.AddGrowableCol(0, 1) + + self.sb_vert.Show(False) + self.sb_hor.Show(False) + + self.SetSizer(sizer) + self.Fit() + self.border = (1,1) self.SetBackgroundColour("white") # Create some mouse events for zooming - self.Bind(wx.EVT_LEFT_DOWN, self.OnMouseLeftDown) - self.Bind(wx.EVT_LEFT_UP, self.OnMouseLeftUp) - self.Bind(wx.EVT_MOTION, self.OnMotion) - self.Bind(wx.EVT_LEFT_DCLICK, self.OnMouseDoubleClick) - self.Bind(wx.EVT_RIGHT_DOWN, self.OnMouseRightDown) + self.canvas.Bind(wx.EVT_LEFT_DOWN, self.OnMouseLeftDown) + self.canvas.Bind(wx.EVT_LEFT_UP, self.OnMouseLeftUp) + self.canvas.Bind(wx.EVT_MOTION, self.OnMotion) + self.canvas.Bind(wx.EVT_LEFT_DCLICK, self.OnMouseDoubleClick) + self.canvas.Bind(wx.EVT_RIGHT_DOWN, self.OnMouseRightDown) + + # scrollbar events + self.Bind(wx.EVT_SCROLL_THUMBTRACK, self.OnScroll) + self.Bind(wx.EVT_SCROLL_PAGEUP, self.OnScroll) + self.Bind(wx.EVT_SCROLL_PAGEDOWN, self.OnScroll) + self.Bind(wx.EVT_SCROLL_LINEUP, self.OnScroll) + self.Bind(wx.EVT_SCROLL_LINEDOWN, self.OnScroll) # set curser as cross-hairs - self.SetCursor(wx.CROSS_CURSOR) - + self.canvas.SetCursor(wx.CROSS_CURSOR) + self.HandCursor = wx.CursorFromImage(getHandImage()) + self.GrabHandCursor = wx.CursorFromImage(getGrabHandImage()) + self.MagCursor = wx.CursorFromImage(getMagPlusImage()) + # Things for printing self.print_data = wx.PrintData() self.print_data.SetPaperId(wx.PAPER_LETTER) @@ -450,6 +524,19 @@ class PlotCanvas(wx.Window): self.printerScale = 1 self.parent= parent + # scrollbar variables + self._sb_ignore = False + self._adjustingSB = False + self._sb_xfullrange = 0 + self._sb_yfullrange = 0 + self._sb_xunit = 0 + self._sb_yunit = 0 + + self._dragEnabled = False + self._screenCoordinates = _Numeric.array([0.0, 0.0]) + + self._logscale = (False, False) + # Zooming variables self._zoomInFactor = 0.5 self._zoomOutFactor = 2 @@ -477,15 +564,28 @@ class PlotCanvas(wx.Window): self._pointLabelEnabled= False self.last_PointLabel= None self._pointLabelFunc= None - self.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeave) + self.canvas.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeave) - self.Bind(wx.EVT_PAINT, self.OnPaint) - self.Bind(wx.EVT_SIZE, self.OnSize) + self.canvas.Bind(wx.EVT_PAINT, self.OnPaint) + self.canvas.Bind(wx.EVT_SIZE, self.OnSize) # OnSize called to make sure the buffer is initialized. # This might result in OnSize getting called twice on some # platforms at initialization, but little harm done. - if wx.Platform != "__WXMAC__": - self.OnSize(None) # sets the initial size based on client size + self.OnSize(None) # sets the initial size based on client size + + self._gridColour = wx.NamedColour('black') + + def SetCursor(self, cursor): + self.canvas.SetCursor(cursor) + + def GetGridColour(self): + return self._gridColour + + def SetGridColour(self, colour): + if isinstance(colour, wx.Colour): + self._gridColour = colour + else: + self._gridColour = wx.NamedColour(colour) # SaveFile @@ -556,7 +656,7 @@ class PlotCanvas(wx.Window): self.pageSetupData.SetMarginBottomRight(data.GetMarginBottomRight()) self.pageSetupData.SetMarginTopLeft(data.GetMarginTopLeft()) self.pageSetupData.SetPrintData(data.GetPrintData()) - self.print_data=data.GetPrintData() # updates print_data + self.print_data=wx.PrintData(data.GetPrintData()) # updates print_data finally: dlg.Destroy() @@ -564,13 +664,12 @@ class PlotCanvas(wx.Window): """Print current plot.""" if paper != None: self.print_data.SetPaperId(paper) - pdd = wx.PrintDialogData() - pdd.SetPrintData(self.print_data) + pdd = wx.PrintDialogData(self.print_data) printer = wx.Printer(pdd) out = PlotPrintout(self) print_ok = printer.Print(self.parent, out) if print_ok: - self.print_data = printer.GetPrintDialogData().GetPrintData() + self.print_data = wx.PrintData(printer.GetPrintDialogData().GetPrintData()) out.Destroy() def PrintPreview(self): @@ -594,6 +693,20 @@ class PlotCanvas(wx.Window): frame.Centre(wx.BOTH) frame.Show(True) + def setLogScale(self, logscale): + if type(logscale) != tuple: + raise TypeError, 'logscale must be a tuple of bools, e.g. (False, False)' + if self.last_draw is not None: + graphics, xAxis, yAxis= self.last_draw + graphics.setLogScale(logscale) + self.last_draw = (graphics, None, None) + self.SetXSpec('min') + self.SetYSpec('min') + self._logscale = logscale + + def getLogScale(self): + return self._logscale + def SetFontSizeAxis(self, point= 10): """Set the tick and axis label font size (default is 10 point)""" self._fontSizeAxis= point @@ -618,10 +731,45 @@ class PlotCanvas(wx.Window): """Get current Legend font size in points""" return self._fontSizeLegend + def SetShowScrollbars(self, value): + """Set True to show scrollbars""" + if value not in [True,False]: + raise TypeError, "Value should be True or False" + if value == self.GetShowScrollbars(): + return + self.sb_vert.Show(value) + self.sb_hor.Show(value) + wx.CallAfter(self.Layout) + + def GetShowScrollbars(self): + """Set True to show scrollbars""" + return self.sb_vert.IsShown() + + def SetEnableDrag(self, value): + """Set True to enable drag.""" + if value not in [True,False]: + raise TypeError, "Value should be True or False" + if value: + if self.GetEnableZoom(): + self.SetEnableZoom(False) + self.SetCursor(self.HandCursor) + else: + self.SetCursor(wx.CROSS_CURSOR) + self._dragEnabled = value + + def GetEnableDrag(self): + return self._dragEnabled + def SetEnableZoom(self, value): """Set True to enable zooming.""" if value not in [True,False]: raise TypeError, "Value should be True or False" + if value: + if self.GetEnableDrag(): + self.SetEnableDrag(False) + self.SetCursor(self.MagCursor) + else: + self.SetCursor(wx.CROSS_CURSOR) self._zoomEnabled= value def GetEnableZoom(self): @@ -630,8 +778,8 @@ class PlotCanvas(wx.Window): def SetEnableGrid(self, value): """Set True to enable grid.""" - if value not in [True,False]: - raise TypeError, "Value should be True or False" + if value not in [True,False,'Horizontal','Vertical']: + raise TypeError, "Value should be True, False, Horizontal or Vertical" self._gridEnabled= value self.Redraw() @@ -676,7 +824,7 @@ class PlotCanvas(wx.Window): """Unzoom the plot.""" self.last_PointLabel = None #reset pointLabel if self.last_draw is not None: - self.Draw(self.last_draw[0]) + self._Draw(self.last_draw[0]) def ScrollRight(self, units): """Move view right number of axis units.""" @@ -684,16 +832,26 @@ class PlotCanvas(wx.Window): if self.last_draw is not None: graphics, xAxis, yAxis= self.last_draw xAxis= (xAxis[0]+units, xAxis[1]+units) - self.Draw(graphics,xAxis,yAxis) + self._Draw(graphics,xAxis,yAxis) def ScrollUp(self, units): """Move view up number of axis units.""" self.last_PointLabel = None #reset pointLabel - if self.BeenDrawn(): - self._drawCmd.scrollAxisY(units, self._ySpec) - self._draw() + if self.last_draw is not None: + graphics, xAxis, yAxis= self.last_draw + yAxis= (yAxis[0]+units, yAxis[1]+units) + self._Draw(graphics,xAxis,yAxis) + + def GetXY(self, event): + """Wrapper around _getXY, which handles log scales""" + x,y = self._getXY(event) + if self.getLogScale()[0]: + x = _Numeric.power(10,x) + if self.getLogScale()[1]: + y = _Numeric.power(10,y) + return x,y - def GetXY(self,event): + def _getXY(self,event): """Takes a mouse event and returns the XY user axis values.""" x,y= self.PositionScreenToUser(event.GetPosition()) return x,y @@ -737,6 +895,12 @@ class PlotCanvas(wx.Window): return self._ySpec def GetXMaxRange(self): + xAxis = self._getXMaxRange() + if self.getLogScale()[0]: + xAxis = _Numeric.power(10,xAxis) + return xAxis + + def _getXMaxRange(self): """Returns (minX, maxX) x-axis range for displayed graph""" graphics= self.last_draw[0] p1, p2 = graphics.boundingBox() # min, max points of graphics @@ -744,6 +908,12 @@ class PlotCanvas(wx.Window): return xAxis def GetYMaxRange(self): + yAxis = self._getYMaxRange() + if self.getLogScale()[1]: + yAxis = _Numeric.power(10,yAxis) + return yAxis + + def _getYMaxRange(self): """Returns (minY, maxY) y-axis range for displayed graph""" graphics= self.last_draw[0] p1, p2 = graphics.boundingBox() # min, max points of graphics @@ -751,38 +921,62 @@ class PlotCanvas(wx.Window): return yAxis def GetXCurrentRange(self): + xAxis = self._getXCurrentRange() + if self.getLogScale()[0]: + xAxis = _Numeric.power(10,xAxis) + return xAxis + + def _getXCurrentRange(self): """Returns (minX, maxX) x-axis for currently displayed portion of graph""" return self.last_draw[1] def GetYCurrentRange(self): + yAxis = self._getYCurrentRange() + if self.getLogScale()[1]: + yAxis = _Numeric.power(10,yAxis) + return yAxis + + def _getYCurrentRange(self): """Returns (minY, maxY) y-axis for currently displayed portion of graph""" return self.last_draw[2] - + def Draw(self, graphics, xAxis = None, yAxis = None, dc = None): - """Draw objects in graphics with specified x and y axis. - graphics- instance of PlotGraphics with list of PolyXXX objects - xAxis - tuple with (min, max) axis range to view - yAxis - same as xAxis - dc - drawing context - doesn't have to be specified. - If it's not, the offscreen buffer is used - """ + """Wrapper around _Draw, which handles log axes""" + + graphics.setLogScale(self.getLogScale()) + # check Axis is either tuple or none if type(xAxis) not in [type(None),tuple]: - raise TypeError, "xAxis should be None or (minX,maxX)" + raise TypeError, "xAxis should be None or (minX,maxX)"+str(type(xAxis)) if type(yAxis) not in [type(None),tuple]: - raise TypeError, "yAxis should be None or (minY,maxY)" + raise TypeError, "yAxis should be None or (minY,maxY)"+str(type(xAxis)) # check case for axis = (a,b) where a==b caused by improper zooms if xAxis != None: if xAxis[0] == xAxis[1]: return + if self.getLogScale()[0]: + xAxis = _Numeric.log10(xAxis) if yAxis != None: if yAxis[0] == yAxis[1]: return - + if self.getLogScale()[1]: + yAxis = _Numeric.log10(yAxis) + self._Draw(graphics, xAxis, yAxis, dc) + + def _Draw(self, graphics, xAxis = None, yAxis = None, dc = None): + """\ + Draw objects in graphics with specified x and y axis. + graphics- instance of PlotGraphics with list of PolyXXX objects + xAxis - tuple with (min, max) axis range to view + yAxis - same as xAxis + dc - drawing context - doesn't have to be specified. + If it's not, the offscreen buffer is used + """ + if dc == None: # sets new dc and clears it - dc = wx.BufferedDC(wx.ClientDC(self), self._Buffer) + dc = wx.BufferedDC(wx.ClientDC(self.canvas), self._Buffer) dc.Clear() dc.BeginDrawing() @@ -807,21 +1001,24 @@ class PlotCanvas(wx.Window): p1= _Numeric.array([xAxis[0], yAxis[0]]) # lower left corner user scale (xmin,ymin) p2= _Numeric.array([xAxis[1], yAxis[1]]) # upper right corner user scale (xmax,ymax) - self.last_draw = (graphics, xAxis, yAxis) # saves most recient values + self.last_draw = (graphics, _Numeric.array(xAxis), _Numeric.array(yAxis)) # saves most recient values # Get ticks and textExtents for axis if required if self._xSpec is not 'none': - xticks = self._ticks(xAxis[0], xAxis[1]) + xticks = self._xticks(xAxis[0], xAxis[1]) xTextExtent = dc.GetTextExtent(xticks[-1][1])# w h of x axis text last number on axis else: xticks = None xTextExtent= (0,0) # No text for ticks if self._ySpec is not 'none': - yticks = self._ticks(yAxis[0], yAxis[1]) - yTextExtentBottom= dc.GetTextExtent(yticks[0][1]) - yTextExtentTop = dc.GetTextExtent(yticks[-1][1]) - yTextExtent= (max(yTextExtentBottom[0],yTextExtentTop[0]), - max(yTextExtentBottom[1],yTextExtentTop[1])) + yticks = self._yticks(yAxis[0], yAxis[1]) + if self.getLogScale()[1]: + yTextExtent = dc.GetTextExtent('-2e-2') + else: + yTextExtentBottom = dc.GetTextExtent(yticks[0][1]) + yTextExtentTop = dc.GetTextExtent(yticks[-1][1]) + yTextExtent= (max(yTextExtentBottom[0],yTextExtentTop[0]), + max(yTextExtentBottom[1],yTextExtentTop[1])) else: yticks = None yTextExtent= (0,0) # No text for ticks @@ -878,17 +1075,19 @@ class PlotCanvas(wx.Window): # remove the clipping region dc.DestroyClippingRegion() dc.EndDrawing() + + self._adjustScrollbars() - def Redraw(self, dc= None): + def Redraw(self, dc=None): """Redraw the existing plot.""" if self.last_draw is not None: graphics, xAxis, yAxis= self.last_draw - self.Draw(graphics,xAxis,yAxis,dc) + self._Draw(graphics,xAxis,yAxis,dc) def Clear(self): """Erase the window.""" self.last_PointLabel = None #reset pointLabel - dc = wx.BufferedDC(wx.ClientDC(self), self._Buffer) + dc = wx.BufferedDC(wx.ClientDC(self.canvas), self._Buffer) dc.Clear() self.last_draw = None @@ -905,7 +1104,7 @@ class PlotCanvas(wx.Window): h = (yAxis[1] - yAxis[0]) * Ratio[1] xAxis = ( x - w/2, x + w/2 ) yAxis = ( y - h/2, y + h/2 ) - self.Draw(graphics, xAxis, yAxis) + self._Draw(graphics, xAxis, yAxis) def GetClosestPoints(self, pntXY, pointScaled= True): """Returns list with @@ -966,7 +1165,7 @@ class PlotCanvas(wx.Window): """ if self.last_PointLabel != None: #compare pointXY - if mDataDict["pointXY"] != self.last_PointLabel["pointXY"]: + if _Numeric.sometrue(mDataDict["pointXY"] != self.last_PointLabel["pointXY"]): #closest changed self._drawPointLabel(self.last_PointLabel) #erase old self._drawPointLabel(mDataDict) #plot new @@ -983,35 +1182,57 @@ class PlotCanvas(wx.Window): self._drawRubberBand(self._zoomCorner1, self._zoomCorner2) # remove old else: self._hasDragged= True - self._zoomCorner2[0], self._zoomCorner2[1] = self.GetXY(event) + self._zoomCorner2[0], self._zoomCorner2[1] = self._getXY(event) self._drawRubberBand(self._zoomCorner1, self._zoomCorner2) # add new - + elif self._dragEnabled and event.LeftIsDown(): + coordinates = event.GetPosition() + newpos, oldpos = map(_Numeric.array, map(self.PositionScreenToUser, [coordinates, self._screenCoordinates])) + dist = newpos-oldpos + self._screenCoordinates = coordinates + + if self.last_draw is not None: + graphics, xAxis, yAxis= self.last_draw + yAxis -= dist[1] + xAxis -= dist[0] + self._Draw(graphics,xAxis,yAxis) + def OnMouseLeftDown(self,event): - self._zoomCorner1[0], self._zoomCorner1[1]= self.GetXY(event) + self._zoomCorner1[0], self._zoomCorner1[1]= self._getXY(event) + self._screenCoordinates = _Numeric.array(event.GetPosition()) + if self._dragEnabled: + self.SetCursor(self.GrabHandCursor) + self.canvas.CaptureMouse() def OnMouseLeftUp(self, event): if self._zoomEnabled: if self._hasDragged == True: self._drawRubberBand(self._zoomCorner1, self._zoomCorner2) # remove old - self._zoomCorner2[0], self._zoomCorner2[1]= self.GetXY(event) + self._zoomCorner2[0], self._zoomCorner2[1]= self._getXY(event) self._hasDragged = False # reset flag minX, minY= _Numeric.minimum( self._zoomCorner1, self._zoomCorner2) maxX, maxY= _Numeric.maximum( self._zoomCorner1, self._zoomCorner2) self.last_PointLabel = None #reset pointLabel if self.last_draw != None: - self.Draw(self.last_draw[0], xAxis = (minX,maxX), yAxis = (minY,maxY), dc = None) + self._Draw(self.last_draw[0], xAxis = (minX,maxX), yAxis = (minY,maxY), dc = None) #else: # A box has not been drawn, zoom in on a point ## this interfered with the double click, so I've disables it. - # X,Y = self.GetXY(event) + # X,Y = self._getXY(event) # self.Zoom( (X,Y), (self._zoomInFactor,self._zoomInFactor) ) + if self._dragEnabled: + self.SetCursor(self.HandCursor) + if self.canvas.HasCapture(): + self.canvas.ReleaseMouse() def OnMouseDoubleClick(self,event): if self._zoomEnabled: - self.Reset() + # Give a little time for the click to be totally finished + # before (possibly) removing the scrollbars and trigering + # size events, etc. + wx.FutureCall(200,self.Reset) def OnMouseRightDown(self,event): if self._zoomEnabled: - X,Y = self.GetXY(event) + X,Y = self._getXY(event) self.Zoom( (X,Y), (self._zoomOutFactor, self._zoomOutFactor) ) def OnPaint(self, event): @@ -1019,17 +1240,19 @@ class PlotCanvas(wx.Window): if self.last_PointLabel != None: self._drawPointLabel(self.last_PointLabel) #erase old self.last_PointLabel = None - dc = wx.BufferedPaintDC(self, self._Buffer) + dc = wx.BufferedPaintDC(self.canvas, self._Buffer) def OnSize(self,event): # The Buffer init is done here, to make sure the buffer is always # the same size as the Window - Size = self.GetClientSize() - + Size = self.canvas.GetClientSize() + Size.width = max(1, Size.width) + Size.height = max(1, Size.height) + # Make new offscreen bitmap: this bitmap will always have the # current drawing in it, so it can be used to save the image to # a file, or whatever. - self._Buffer = wx.EmptyBitmap(Size[0],Size[1]) + self._Buffer = wx.EmptyBitmap(Size.width, Size.height) self._setSize() self.last_PointLabel = None #reset pointLabel @@ -1038,7 +1261,7 @@ class PlotCanvas(wx.Window): self.Clear() else: graphics, xSpec, ySpec = self.last_draw - self.Draw(graphics,xSpec,ySpec) + self._Draw(graphics,xSpec,ySpec) def OnLeave(self, event): """Used to erase pointLabel when mouse outside window""" @@ -1046,12 +1269,26 @@ class PlotCanvas(wx.Window): self._drawPointLabel(self.last_PointLabel) #erase old self.last_PointLabel = None + def OnScroll(self, evt): + if not self._adjustingSB: + self._sb_ignore = True + sbpos = evt.GetPosition() + if evt.GetOrientation() == wx.VERTICAL: + fullrange,pagesize = self.sb_vert.GetRange(),self.sb_vert.GetPageSize() + sbpos = fullrange-pagesize-sbpos + dist = sbpos*self._sb_yunit-(self._getYCurrentRange()[0]-self._sb_yfullrange[0]) + self.ScrollUp(dist) + + if evt.GetOrientation() == wx.HORIZONTAL: + dist = sbpos*self._sb_xunit-(self._getXCurrentRange()[0]-self._sb_xfullrange[0]) + self.ScrollRight(dist) + # Private Methods ************************************************** def _setSize(self, width=None, height=None): """DC width and height.""" if width == None: - (self.width,self.height) = self.GetClientSize() + (self.width,self.height) = self.canvas.GetClientSize() else: self.width, self.height= width,height self.plotbox_size = 0.97*_Numeric.array([self.width, self.height]) @@ -1068,7 +1305,7 @@ class PlotCanvas(wx.Window): """Used for printing.""" if self.last_draw != None: graphics, xSpec, ySpec= self.last_draw - self.Draw(graphics,xSpec,ySpec,printDC) + self._Draw(graphics,xSpec,ySpec,printDC) def _drawPointLabel(self, mDataDict): """Draws and erases pointLabels""" @@ -1082,7 +1319,7 @@ class PlotCanvas(wx.Window): self._pointLabelFunc(dcs,mDataDict) #custom user pointLabel function dcs.EndDrawing() - dc = wx.ClientDC( self ) + dc = wx.ClientDC( self.canvas ) #this will erase if called twice dc.Blit(0, 0, width, height, dcs, 0, 0, wx.EQUIV) #(NOT src) XOR dst @@ -1151,7 +1388,7 @@ class PlotCanvas(wx.Window): """Draws/erases rect box from corner1 to corner2""" ptx,pty,rectWidth,rectHeight= self._point2ClientCoord(corner1, corner2) # draw rectangle - dc = wx.ClientDC( self ) + dc = wx.ClientDC( self.canvas ) dc.BeginDrawing() dc.SetPen(wx.Pen(wx.BLACK)) dc.SetBrush(wx.Brush( wx.WHITE, wx.TRANSPARENT ) ) @@ -1223,13 +1460,20 @@ class PlotCanvas(wx.Window): def _drawAxes(self, dc, p1, p2, scale, shift, xticks, yticks): penWidth= self.printerScale # increases thickness for printing only - dc.SetPen(wx.Pen(wx.NamedColour('BLACK'), penWidth)) + dc.SetPen(wx.Pen(self._gridColour, penWidth)) # set length of tick marks--long ones make grid if self._gridEnabled: x,y,width,height= self._point2ClientCoord(p1,p2) - yTickLength= width/2.0 +1 - xTickLength= height/2.0 +1 + if self._gridEnabled == 'Horizontal': + yTickLength= width/2.0 +1 + xTickLength= 3 * self.printerScale + elif self._gridEnabled == 'Vertical': + yTickLength= 3 * self.printerScale + xTickLength= height/2.0 +1 + else: + yTickLength= width/2.0 +1 + xTickLength= height/2.0 +1 else: yTickLength= 3 * self.printerScale # lengthens lines for printing xTickLength= 3 * self.printerScale @@ -1264,6 +1508,49 @@ class PlotCanvas(wx.Window): pt[1]-0.5*h) text = 0 # axis values not drawn on right side + def _xticks(self, *args): + if self._logscale[0]: + return self._logticks(*args) + else: + return self._ticks(*args) + + def _yticks(self, *args): + if self._logscale[1]: + return self._logticks(*args) + else: + return self._ticks(*args) + + def _logticks(self, lower, upper): + #lower,upper = map(_Numeric.log10,[lower,upper]) + #print 'logticks',lower,upper + ticks = [] + mag = _Numeric.power(10,_Numeric.floor(lower)) + if upper-lower > 6: + t = _Numeric.power(10,_Numeric.ceil(lower)) + base = _Numeric.power(10,_Numeric.floor((upper-lower)/6)) + def inc(t): + return t*base-t + else: + t = _Numeric.ceil(_Numeric.power(10,lower)/mag)*mag + def inc(t): + return 10**int(_Numeric.floor(_Numeric.log10(t)+1e-16)) + majortick = int(_Numeric.log10(mag)) + while t <= pow(10,upper): + if majortick != int(_Numeric.floor(_Numeric.log10(t)+1e-16)): + majortick = int(_Numeric.floor(_Numeric.log10(t)+1e-16)) + ticklabel = '1e%d'%majortick + else: + if upper-lower < 2: + minortick = int(t/pow(10,majortick)+.5) + ticklabel = '%de%d'%(minortick,majortick) + else: + ticklabel = '' + ticks.append((_Numeric.log10(t), ticklabel)) + t += inc(t) + if len(ticks) == 0: + ticks = [(0,'')] + return ticks + def _ticks(self, lower, upper): ideal = (upper-lower)/7. log = _Numeric.log10(ideal) @@ -1295,6 +1582,61 @@ class PlotCanvas(wx.Window): _multiples = [(2., _Numeric.log10(2.)), (5., _Numeric.log10(5.))] + def _adjustScrollbars(self): + if self._sb_ignore: + self._sb_ignore = False + return + + self._adjustingSB = True + needScrollbars = False + + # horizontal scrollbar + r_current = self._getXCurrentRange() + r_max = list(self._getXMaxRange()) + sbfullrange = float(self.sb_hor.GetRange()) + + r_max[0] = min(r_max[0],r_current[0]) + r_max[1] = max(r_max[1],r_current[1]) + + self._sb_xfullrange = r_max + + unit = (r_max[1]-r_max[0])/float(self.sb_hor.GetRange()) + pos = int((r_current[0]-r_max[0])/unit) + + if pos >= 0: + pagesize = int((r_current[1]-r_current[0])/unit) + + self.sb_hor.SetScrollbar(pos, pagesize, sbfullrange, pagesize) + self._sb_xunit = unit + needScrollbars = needScrollbars or (pagesize != sbfullrange) + else: + self.sb_hor.SetScrollbar(0, 1000, 1000, 1000) + + # vertical scrollbar + r_current = self._getYCurrentRange() + r_max = list(self._getYMaxRange()) + sbfullrange = float(self.sb_vert.GetRange()) + + r_max[0] = min(r_max[0],r_current[0]) + r_max[1] = max(r_max[1],r_current[1]) + + self._sb_yfullrange = r_max + + unit = (r_max[1]-r_max[0])/sbfullrange + pos = int((r_current[0]-r_max[0])/unit) + + if pos >= 0: + pagesize = int((r_current[1]-r_current[0])/unit) + pos = (sbfullrange-1-pos-pagesize) + self.sb_vert.SetScrollbar(pos, pagesize, sbfullrange, pagesize) + self._sb_yunit = unit + needScrollbars = needScrollbars or (pagesize != sbfullrange) + else: + self.sb_vert.SetScrollbar(0, 1000, 1000, 1000) + + self.SetShowScrollbars(needScrollbars) + self._adjustingSB = False + #------------------------------------------------------------------------------- # Used to layout the printer page @@ -1373,6 +1715,83 @@ class PlotPrintout(wx.Printout): return True +#---------------------------------------------------------------------- +from wx import ImageFromStream, BitmapFromImage +import cStringIO, zlib + + +def getMagPlusData(): + return zlib.decompress( +'x\xda\x01*\x01\xd5\xfe\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x18\ +\x00\x00\x00\x18\x08\x06\x00\x00\x00\xe0w=\xf8\x00\x00\x00\x04sBIT\x08\x08\ +\x08\x08|\x08d\x88\x00\x00\x00\xe1IDATx\x9c\xb5U\xd1\x0e\xc4 \x08\xa3n\xff\ +\xff\xc5\xdb\xb8\xa7\xee<\x04\x86gFb\xb2\x88\xb6\x14\x90\x01m\x937m\x8f\x1c\ +\xd7yh\xe4k\xdb\x8e*\x01<\x05\x04\x07F\x1cU\x9d"\x19\x14\\\xe7\xa1\x1e\xf07"\ +\x90H+$?\x04\x16\x9c\xd1z\x04\x00J$m\x06\xdc\xee\x03Hku\x13\xd8C\x16\x84+"O\ +\x1b\xa2\x07\xca"\xb7\xc6sY\xbdD\x926\xf5.\xce\x06!\xd2)x\xcb^\'\x08S\xe4\ +\xe5x&5\xb4[A\xb5h\xb4j=\x9a\xc8\xf8\xecm\xd4\\\x9e\xdf\xbb?\x10\xf0P\x06\ +\x12\xed?=\xb6a\xd8=\xcd\xa2\xc8T\xd5U2t\x11\x95d\xa3"\x9aQ\x9e\x12\xb7M\x19\ +I\x9f\xff\x1e\xd8\xa63#q\xff\x07U\x8b\xd2\xd9\xa7k\xe9\xa1U\x94,\xbf\xe4\x88\ +\xe4\xf6\xaf\x12x$}\x8a\xc2Q\xf1\'\x89\xf2\x9b\xfbKE\xae\xd8\x07+\xd2\xa7c\ +\xdf\x0e\xc3D\x00\x00\x00\x00IEND\xaeB`\x82\xe2ovy' ) + +def getMagPlusBitmap(): + return BitmapFromImage(getMagPlusImage()) + +def getMagPlusImage(): + stream = cStringIO.StringIO(getMagPlusData()) + return ImageFromStream(stream) + +#---------------------------------------------------------------------- +def getGrabHandData(): + return zlib.decompress( +'x\xda\x01Z\x01\xa5\xfe\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x18\ +\x00\x00\x00\x18\x08\x06\x00\x00\x00\xe0w=\xf8\x00\x00\x00\x04sBIT\x08\x08\ +\x08\x08|\x08d\x88\x00\x00\x01\x11IDATx\x9c\xb5U\xd1\x12\x830\x08Kh\xff\xff\ +\x8b7\xb3\x97\xd1C\xa4Zw\x93;\x1fJ1\t\x98VJ\x92\xb5N<\x14\x04 I\x00\x80H\xb4\ +\xbd_\x8a9_{\\\x89\xf2z\x02\x18/J\x82\xb5\xce\xed\xfd\x12\xc9\x91\x03\x00_\ +\xc7\xda\x8al\x00{\xfdW\xfex\xf2zeO\x92h\xed\x80\x05@\xa45D\xc5\xb3\x98u\x12\ +\xf7\xab.\xa9\xd0k\x1eK\x95\xbb\x1a]&0\x92\xf0\'\xc6]gI\xda\tsr\xab\x8aI\x1e\ +\\\xe3\xa4\x0e\xb4*`7"\x07\x8f\xaa"x\x05\xe0\xdfo6B\xf3\x17\xe3\x98r\xf1\xaf\ +\x07\xd1Z\'%\x95\x0erW\xac\x8c\xe3\xe0\xfd\xd8AN\xae\xb8\xa3R\x9as>\x11\x8bl\ +yD\xab\x1f\xf3\xec\x1cY\x06\x89$\xbf\x80\xfb\x14\\dw\x90x\x12\xa3+\xeeD\x16%\ +I\xe3\x1c\xb8\xc7c\'\xd5Y8S\x9f\xc3Zg\xcf\x89\xe8\xaao\'\xbbk{U\xfd\xc0\xacX\ +\xab\xbb\xe8\xae\xfa)AEr\x15g\x86(\t\xfe\x19\xa4\xb5\xe9f\xfem\xde\xdd\xbf$\ +\xf8G<>\xa2\xc7\t>\tE\xfc\x8a\xf6\x8dqc\x00\x00\x00\x00IEND\xaeB`\x82\xdb\ +\xd0\x8f\n' ) + +def getGrabHandBitmap(): + return BitmapFromImage(getGrabHandImage()) + +def getGrabHandImage(): + stream = cStringIO.StringIO(getGrabHandData()) + return ImageFromStream(stream) + +#---------------------------------------------------------------------- +def getHandData(): + return zlib.decompress( +'x\xda\x01Y\x01\xa6\xfe\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x18\ +\x00\x00\x00\x18\x08\x06\x00\x00\x00\xe0w=\xf8\x00\x00\x00\x04sBIT\x08\x08\ +\x08\x08|\x08d\x88\x00\x00\x01\x10IDATx\x9c\xad\x96\xe1\x02\xc2 \x08\x849\ +\xf5\xfd\x9fx\xdb\xf5\'\x8c!\xa8\xab\xee\x975\xe5\x83\x0b\\@\xa9\xb2\xab\xeb\ +<\xa8\xebR\x1bv\xce\xb4\'\xc1\x81OL\x92\xdc\x81\x0c\x00\x1b\x88\xa4\x94\xda\ +\xe0\x83\x8b\x88\x00\x10\x92\xcb\x8a\xca,K\x1fT\xa1\x1e\x04\xe0f_\n\x88\x02\ +\xf1:\xc3\x83>\x81\x0c\x92\x02v\xe5+\xba\xce\x83\xb7f\xb8\xd1\x9c\x8fz8\xb2*\ +\x93\xb7l\xa8\xe0\x9b\xa06\xb8]_\xe7\xc1\x01\x10U\xe1m\x98\xc9\xefm"ck\xea\ +\x1a\x80\xa0Th\xb9\xfd\x877{V*Qk\xda,\xb4\x8b\xf4;[\xa1\xcf6\xaa4\x9cd\x85X\ +\xb0\r\\j\x83\x9dd\x92\xc3 \xf6\xbd\xab\x0c2\x05\xc0p\x9a\xa7]\xf4\x14\x18]3\ +7\x80}h?\xff\xa2\xa2\xe5e\x90\xact\xaf\xe8B\x14y[4\x83|\x13\xdc\x9e\xeb\x16e\ +\x90\xa7\xf2I\rw\x91\x87d\xd7p\x96\xbd\xd70\x07\xda\xe3v\x9a\xf5\xc5\xb2\xb2\ ++\xb24\xbc\xaew\xedZe\x9f\x02"\xc8J\xdb\x83\xf6oa\xf5\xb7\xa5\xbf8\x12\xffW\ +\xcf_\xbd;\xe4\x8c\x03\x10\xdb^\x00\x00\x00\x00IEND\xaeB`\x82\xd1>\x97B' ) + +def getHandBitmap(): + return BitmapFromImage(getHandImage()) + +def getHandImage(): + stream = cStringIO.StringIO(getHandData()) + return ImageFromStream(stream) + #--------------------------------------------------------------------------- @@ -1468,6 +1887,16 @@ def _draw6Objects(): return PlotGraphics([line1, line1g, line1b, line2, line2g, line2b], "Bar Graph - (Turn on Grid, Legend)", "Months", "Number of Students") +def _draw7Objects(): + # Empty graph with axis defined but no points/lines + x = _Numeric.arange(1,1000,1) + y1 = 4.5*x**2 + y2 = 2.2*x**3 + points1 = _Numeric.transpose([x,y1]) + points2 = _Numeric.transpose([x,y2]) + line1 = PolyLine(points1, legend='quadratic', colour='blue', width=1) + line2 = PolyLine(points2, legend='cubic', colour='red', width=1) + return PlotGraphics([line1,line2], "double log plot", "Value X", "Value Y") class TestFrame(wx.Frame): @@ -1508,7 +1937,8 @@ class TestFrame(wx.Frame): self.Bind(wx.EVT_MENU,self.OnPlotDraw5, id=210) menu.Append(260, 'Draw6', 'Draw plots6') self.Bind(wx.EVT_MENU,self.OnPlotDraw6, id=260) - + menu.Append(261, 'Draw7', 'Draw plots7') + self.Bind(wx.EVT_MENU,self.OnPlotDraw7, id=261) menu.Append(211, '&Redraw', 'Redraw plots') self.Bind(wx.EVT_MENU,self.OnPlotRedraw, id=211) @@ -1520,6 +1950,8 @@ class TestFrame(wx.Frame): self.Bind(wx.EVT_MENU,self.OnEnableZoom, id=214) menu.Append(215, 'Enable &Grid', 'Turn on Grid', kind=wx.ITEM_CHECK) self.Bind(wx.EVT_MENU,self.OnEnableGrid, id=215) + menu.Append(217, 'Enable &Drag', 'Activates dragging mode', kind=wx.ITEM_CHECK) + self.Bind(wx.EVT_MENU,self.OnEnableDrag, id=217) menu.Append(220, 'Enable &Legend', 'Turn on Legend', kind=wx.ITEM_CHECK) self.Bind(wx.EVT_MENU,self.OnEnableLegend, id=220) menu.Append(222, 'Enable &Point Label', 'Show Closest Point', kind=wx.ITEM_CHECK) @@ -1548,9 +1980,9 @@ class TestFrame(wx.Frame): #define the function for drawing pointLabels self.client.SetPointLabelFunc(self.DrawPointLabel) # Create mouse event for showing cursor coords in status bar - self.client.Bind(wx.EVT_LEFT_DOWN, self.OnMouseLeftDown) + self.client.canvas.Bind(wx.EVT_LEFT_DOWN, self.OnMouseLeftDown) # Show closest point when enabled - self.client.Bind(wx.EVT_MOTION, self.OnMotion) + self.client.canvas.Bind(wx.EVT_MOTION, self.OnMotion) self.Show(True) @@ -1579,7 +2011,7 @@ class TestFrame(wx.Frame): # ----------- def OnMouseLeftDown(self,event): - s= "Left Mouse Down at Point: (%.4f, %.4f)" % self.client.GetXY(event) + s= "Left Mouse Down at Point: (%.4f, %.4f)" % self.client._getXY(event) self.SetStatusText(s) event.Skip() #allows plotCanvas OnMouseLeftDown to be called @@ -1588,7 +2020,7 @@ class TestFrame(wx.Frame): if self.client.GetEnablePointLabel() == True: #make up dict with info for the pointLabel #I've decided to mark the closest point on the closest curve - dlst= self.client.GetClosetPoint( self.client.GetXY(event), pointScaled= True) + dlst= self.client.GetClosetPoint( self.client._getXY(event), pointScaled= True) if dlst != []: #returns [] if none curveNum, legend, pIndex, pointXY, scaledXY, distance = dlst #make up dictionary to pass to my user function (see DrawPointLabel) @@ -1658,6 +2090,12 @@ class TestFrame(wx.Frame): self.client.SetYSpec('auto') self.client.Draw(_draw6Objects(), xAxis= (0,7)) + def OnPlotDraw7(self, event): + #log scale example + self.resetDefaults() + self.client.setLogScale((True,True)) + self.client.Draw(_draw7Objects()) + def OnPlotRedraw(self,event): self.client.Redraw() @@ -1671,10 +2109,15 @@ class TestFrame(wx.Frame): def OnEnableZoom(self, event): self.client.SetEnableZoom(event.IsChecked()) + self.mainmenu.Check(217, not event.IsChecked()) def OnEnableGrid(self, event): self.client.SetEnableGrid(event.IsChecked()) + def OnEnableDrag(self, event): + self.client.SetEnableDrag(event.IsChecked()) + self.mainmenu.Check(214, not event.IsChecked()) + def OnEnableLegend(self, event): self.client.SetEnableLegend(event.IsChecked()) @@ -1700,9 +2143,11 @@ class TestFrame(wx.Frame): self.client.SetFont(wx.Font(10,wx.SWISS,wx.NORMAL,wx.NORMAL)) self.client.SetFontSizeAxis(10) self.client.SetFontSizeLegend(7) + self.client.setLogScale((False,False)) self.client.SetXSpec('auto') self.client.SetYSpec('auto') + def __test():