X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/00b9c8672fa526a520f6bc7793fdcdde97278d33..16541a4ef4c409e27a047f898f9d770bdcfa9f30:/wxPython/wx/lib/plot.py diff --git a/wxPython/wx/lib/plot.py b/wxPython/wx/lib/plot.py index cf5df17ca1..59f7f37c61 100644 --- a/wxPython/wx/lib/plot.py +++ b/wxPython/wx/lib/plot.py @@ -25,7 +25,16 @@ # - Modified line end shape from round to square. # - Removed FloatDCWrapper for conversion to ints and ints in arguments # - +# Oct 15, 2004 Gordon Williams (g_will@cyberus.ca) +# - Imported modules given leading underscore to name. +# - Added Cursor Line Tracking and User Point Labels. +# - Demo for Cursor Line Tracking and Point Labels. +# - Size of plot preview frame adjusted to show page better. +# - Added helper functions PositionUserToScreen and PositionScreenToUser in PlotCanvas. +# - Added functions GetClosestPoints (all curves) and GetClosestPoint (only closest curve) +# can be in either user coords or screen coords. +# +# """ This is a simple light weight plotting module that can be used with @@ -79,24 +88,27 @@ Zooming controls with mouse (when enabled): Right mouse click - zoom out centred on click location. """ -import string -import time +import string as _string +import time as _time import wx -# Needs Numeric or numarray +# Needs Numeric or numarray or NumPy try: - import Numeric + import numpy as _Numeric except: try: - import numarray as Numeric #if numarray is used it is renamed Numeric + 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 @@ -109,7 +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 @@ -120,15 +133,37 @@ 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) + minXY= _Numeric.minimum.reduce(self.points) + maxXY= _Numeric.maximum.reduce(self.points) return minXY, maxXY def scaleAndShift(self, scale=(1,1), shift=(0,0)): @@ -145,7 +180,27 @@ class PolyPoints: def getLegend(self): return self.attributes['legend'] - + def getClosestPoint(self, pntXY, pointScaled= True): + """Returns the index of closest point on the curve, pointXY, scaledXY, distance + x, y in user coords + if pointScaled == True based on screen coords + if pointScaled == False based on user coords + """ + if pointScaled == True: + #Using screen coords + p = self.scaled + pxy = self.currentScale * _Numeric.array(pntXY)+ self.currentShift + else: + #Using user coords + p = self.points + pxy = _Numeric.array(pntXY) + #determine distance for each point + d= _Numeric.sqrt(_Numeric.add.reduce((p-pxy)**2,1)) #sqrt(dx^2+dy^2) + pntIndex = _Numeric.argmin(d) + dist = d[pntIndex] + return [pntIndex, self.points[pntIndex], self.scaled[pntIndex], dist] + + class PolyLine(PolyPoints): """Class to define line type and style - All methods except __init__ are private. @@ -172,7 +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: @@ -233,11 +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: @@ -255,9 +317,9 @@ class PolyMarker(PolyPoints): def _circle(self, dc, coords, size=1): fact= 2.5*size wh= 5.0*size - rect= Numeric.zeros((len(coords),4),Numeric.Float)+[0.0,0.0,wh,wh] + rect= _Numeric.zeros((len(coords),4),_Numeric.Float)+[0.0,0.0,wh,wh] rect[:,0:2]= coords-[fact,fact] - dc.DrawEllipseList(rect.astype(Numeric.Int32)) + dc.DrawEllipseList(rect.astype(_Numeric.Int32)) def _dot(self, dc, coords, size=1): dc.DrawPointList(coords) @@ -265,35 +327,35 @@ class PolyMarker(PolyPoints): def _square(self, dc, coords, size=1): fact= 2.5*size wh= 5.0*size - rect= Numeric.zeros((len(coords),4),Numeric.Float)+[0.0,0.0,wh,wh] + rect= _Numeric.zeros((len(coords),4),_Numeric.Float)+[0.0,0.0,wh,wh] rect[:,0:2]= coords-[fact,fact] - dc.DrawRectangleList(rect.astype(Numeric.Int32)) + dc.DrawRectangleList(rect.astype(_Numeric.Int32)) def _triangle(self, dc, coords, size=1): shape= [(-2.5*size,1.44*size), (2.5*size,1.44*size), (0.0,-2.88*size)] - poly= Numeric.repeat(coords,3) + poly= _Numeric.repeat(coords,3) poly.shape= (len(coords),3,2) poly += shape - dc.DrawPolygonList(poly.astype(Numeric.Int32)) + dc.DrawPolygonList(poly.astype(_Numeric.Int32)) def _triangle_down(self, dc, coords, size=1): shape= [(-2.5*size,-1.44*size), (2.5*size,-1.44*size), (0.0,2.88*size)] - poly= Numeric.repeat(coords,3) + poly= _Numeric.repeat(coords,3) poly.shape= (len(coords),3,2) poly += shape - dc.DrawPolygonList(poly.astype(Numeric.Int32)) + dc.DrawPolygonList(poly.astype(_Numeric.Int32)) def _cross(self, dc, coords, size=1): fact= 2.5*size for f in [[-fact,-fact,fact,fact],[-fact,fact,fact,-fact]]: - lines= Numeric.concatenate((coords,coords),axis=1)+f - dc.DrawLineList(lines.astype(Numeric.Int32)) + lines= _Numeric.concatenate((coords,coords),axis=1)+f + dc.DrawLineList(lines.astype(_Numeric.Int32)) def _plus(self, dc, coords, size=1): fact= 2.5*size for f in [[-fact,0,fact,0],[0,-fact,0,fact]]: - lines= Numeric.concatenate((coords,coords),axis=1)+f - dc.DrawLineList(lines.astype(Numeric.Int32)) + lines= _Numeric.concatenate((coords,coords),axis=1)+f + dc.DrawLineList(lines.astype(_Numeric.Int32)) class PlotGraphics: """Container to hold PolyXXX objects and graph labels @@ -314,12 +376,20 @@ 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:]: p1o, p2o = o.boundingBox() - p1 = Numeric.minimum(p1, p1o) - p2 = Numeric.maximum(p2, p2o) + p1 = _Numeric.minimum(p1, p1o) + p2 = _Numeric.maximum(p2, p2o) return p1, p2 def scaleAndShift(self, scale=(1,1), shift=(0,0)): @@ -356,9 +426,9 @@ class PlotGraphics: def draw(self, dc): for o in self.objects: - #t=time.clock() # profile info + #t=_time.clock() # profile info o.draw(dc, self.printerScale) - #dt= time.clock()-t + #dt= _time.clock()-t #print o, "time=", dt def getSymExtent(self, printerScale): @@ -366,7 +436,7 @@ class PlotGraphics: symExt = self.objects[0].getSymExtent(printerScale) for o in self.objects[1:]: oSymExt = o.getSymExtent(printerScale) - symExt = Numeric.maximum(symExt, oSymExt) + symExt = _Numeric.maximum(symExt, oSymExt) return symExt def getLegendNames(self): @@ -386,30 +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) @@ -421,11 +524,24 @@ 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 - self._zoomCorner1= Numeric.array([0.0, 0.0]) # left mouse down corner - self._zoomCorner2= Numeric.array([0.0, 0.0]) # left mouse up corner + self._zoomCorner1= _Numeric.array([0.0, 0.0]) # left mouse down corner + self._zoomCorner2= _Numeric.array([0.0, 0.0]) # left mouse up corner self._zoomEnabled= False self._hasDragged= False @@ -444,13 +560,32 @@ class PlotCanvas(wx.Window): self._fontSizeTitle= 15 self._fontSizeLegend= 7 - self.Bind(wx.EVT_PAINT, self.OnPaint) - self.Bind(wx.EVT_SIZE, self.OnSize) + # pointLabels + self._pointLabelEnabled= False + self.last_PointLabel= None + self._pointLabelFunc= None + self.canvas.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeave) + + 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 @@ -465,7 +600,7 @@ class PlotCanvas(wx.Window): .png Save a Portable Network Graphics file. .jpg Save a Joint Photographic Experts Group file. """ - if string.lower(fileName[-3:]) not in ['bmp','xbm','xpm','png','jpg']: + if _string.lower(fileName[-3:]) not in ['bmp','xbm','xpm','png','jpg']: dlg1 = wx.FileDialog( self, "Choose a file with extension bmp, gif, xbm, xpm, png, or jpg", ".", "", @@ -477,7 +612,7 @@ class PlotCanvas(wx.Window): if dlg1.ShowModal() == wx.ID_OK: fileName = dlg1.GetPath() # Check for proper exension - if string.lower(fileName[-3:]) not in ['bmp','xbm','xpm','png','jpg']: + if _string.lower(fileName[-3:]) not in ['bmp','xbm','xpm','png','jpg']: dlg2 = wx.MessageDialog(self, 'File name extension\n' 'must be one of\n' 'bmp, xbm, xpm, png, or jpg', @@ -494,7 +629,7 @@ class PlotCanvas(wx.Window): dlg1.Destroy() # File name has required extension - fType = string.lower(fileName[-3:]) + fType = _string.lower(fileName[-3:]) if fType == "bmp": tp= wx.BITMAP_TYPE_BMP # Save a Windows bitmap file. elif fType == "xbm": @@ -521,7 +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() @@ -529,13 +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): @@ -547,7 +681,7 @@ class PlotCanvas(wx.Window): wx.MessageDialog(self, "Print Preview failed.\n" \ "Check that default printer is configured\n", \ "Print error", wx.OK|wx.CENTRE).ShowModal() - self.preview.SetZoom(30) + self.preview.SetZoom(40) # search up tree to find frame instance frameInst= self while not isinstance(frameInst, wx.Frame): @@ -555,10 +689,24 @@ class PlotCanvas(wx.Window): frame = wx.PreviewFrame(self.preview, frameInst, "Preview") frame.Initialize() frame.SetPosition(self.GetPosition()) - frame.SetSize((500,400)) + frame.SetSize((600,550)) 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 @@ -583,10 +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): @@ -595,8 +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() @@ -615,31 +798,76 @@ class PlotCanvas(wx.Window): """True if Legend enabled.""" return self._legendEnabled + def SetEnablePointLabel(self, value): + """Set True to enable pointLabel.""" + if value not in [True,False]: + raise TypeError, "Value should be True or False" + self._pointLabelEnabled= value + self.Redraw() #will erase existing pointLabel if present + self.last_PointLabel = None + + def GetEnablePointLabel(self): + """True if pointLabel enabled.""" + return self._pointLabelEnabled + + def SetPointLabelFunc(self, func): + """Sets the function with custom code for pointLabel drawing + ******** more info needed *************** + """ + self._pointLabelFunc= func + + def GetPointLabelFunc(self): + """Returns pointLabel Drawing Function""" + return self._pointLabelFunc + def Reset(self): """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.""" + self.last_PointLabel = None #reset pointLabel 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.last_draw is not None: - graphics, xAxis, yAxis= self.last_draw - yAxis= (yAxis[0]+units, yAxis[1]+units) - self.Draw(graphics,xAxis,yAxis) + 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.""" - screenPos= Numeric.array( event.GetPosition()) - x,y= (screenPos-self._pointShift)/self._pointScale + x,y= self.PositionScreenToUser(event.GetPosition()) return x,y + def PositionUserToScreen(self, pntXY): + """Converts User position to Screen Coordinates""" + userPos= _Numeric.array(pntXY) + x,y= userPos * self._pointScale + self._pointShift + return x,y + + def PositionScreenToUser(self, pntXY): + """Converts Screen position to User Coordinates""" + screenPos= _Numeric.array(pntXY) + x,y= (screenPos-self._pointShift)/self._pointScale + return x,y + def SetXSpec(self, type= 'auto'): """xSpec- defines x axis type. Can be 'none', 'min' or 'auto' where: @@ -667,6 +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 @@ -674,6 +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 @@ -681,38 +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: - # allows using floats for certain functions - dc = wx.BufferedDC(wx.ClientDC(self), self._Buffer) + # sets new dc and clears it + dc = wx.BufferedDC(wx.ClientDC(self.canvas), self._Buffer) dc.Clear() dc.BeginDrawing() @@ -734,24 +998,27 @@ class PlotCanvas(wx.Window): p2[0],p2[1] = xAxis[1], yAxis[1] # upper right corner user scale (xmax,ymax) else: # Both axis specified in Draw - 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) + 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 @@ -767,8 +1034,8 @@ class PlotCanvas(wx.Window): lhsW= yTextExtent[0]+ yLabelWH[1] bottomH= max(xTextExtent[1], yTextExtent[1]/2.)+ xLabelWH[1] topH= yTextExtent[1]/2. + titleWH[1] - textSize_scale= Numeric.array([rhsW+lhsW,bottomH+topH]) # make plot area smaller by text size - textSize_shift= Numeric.array([lhsW, bottomH]) # shift plot area by this amount + textSize_scale= _Numeric.array([rhsW+lhsW,bottomH+topH]) # make plot area smaller by text size + textSize_shift= _Numeric.array([lhsW, bottomH]) # shift plot area by this amount # drawing title and labels text dc.SetFont(self._getFont(self._fontSizeTitle)) @@ -789,8 +1056,8 @@ class PlotCanvas(wx.Window): self._drawLegend(dc,graphics,rhsW,topH,legendBoxWH, legendSymExt, legendTextExt) # allow for scaling and shifting plotted points - scale = (self.plotbox_size-textSize_scale) / (p2-p1)* Numeric.array((1,-1)) - shift = -p1*scale + self.plotbox_origin + textSize_shift * Numeric.array((1,-1)) + scale = (self.plotbox_size-textSize_scale) / (p2-p1)* _Numeric.array((1,-1)) + shift = -p1*scale + self.plotbox_origin + textSize_shift * _Numeric.array((1,-1)) self._pointScale= scale # make available for mouse events self._pointShift= shift self._drawAxes(dc, p1, p2, scale, shift, xticks, yticks) @@ -802,22 +1069,25 @@ class PlotCanvas(wx.Window): ptx,pty,rectWidth,rectHeight= self._point2ClientCoord(p1, p2) dc.SetClippingRegion(ptx,pty,rectWidth,rectHeight) # Draw the lines and markers - #start = time.clock() + #start = _time.clock() graphics.draw(dc) - # print "entire graphics drawing took: %f second"%(time.clock() - start) + # print "entire graphics drawing took: %f second"%(_time.clock() - start) # 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.""" - dc = wx.BufferedDC(wx.ClientDC(self), self._Buffer) + self.last_PointLabel = None #reset pointLabel + dc = wx.BufferedDC(wx.ClientDC(self.canvas), self._Buffer) dc.Clear() self.last_draw = None @@ -826,6 +1096,7 @@ class PlotCanvas(wx.Window): Centers on the X,Y coords given in Center Zooms by the Ratio = (Xratio, Yratio) given """ + self.last_PointLabel = None #reset maker x,y = Center if self.last_draw != None: (graphics, xAxis, yAxis) = self.last_draw @@ -833,8 +1104,76 @@ 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 + [curveNumber, legend, index of closest point, pointXY, scaledXY, distance] + list for each curve. + Returns [] if no curves are being plotted. + + x, y in user coords + if pointScaled == True based on screen coords + if pointScaled == False based on user coords + """ + if self.last_draw == None: + #no graph available + return [] + graphics, xAxis, yAxis= self.last_draw + l = [] + for curveNum,obj in enumerate(graphics): + #check there are points in the curve + if len(obj.points) == 0: + continue #go to next obj + #[curveNumber, legend, index of closest point, pointXY, scaledXY, distance] + cn = [curveNum]+ [obj.getLegend()]+ obj.getClosestPoint( pntXY, pointScaled) + l.append(cn) + return l + + def GetClosetPoint(self, pntXY, pointScaled= True): + """Returns list with + [curveNumber, legend, index of closest point, pointXY, scaledXY, distance] + list for only the closest curve. + Returns [] if no curves are being plotted. + + x, y in user coords + if pointScaled == True based on screen coords + if pointScaled == False based on user coords + """ + #closest points on screen based on screen scaling (pointScaled= True) + #list [curveNumber, index, pointXY, scaledXY, distance] for each curve + closestPts= self.GetClosestPoints(pntXY, pointScaled) + if closestPts == []: + return [] #no graph present + #find one with least distance + dists = [c[-1] for c in closestPts] + mdist = min(dists) #Min dist + i = dists.index(mdist) #index for min dist + return closestPts[i] #this is the closest point on closest curve + + def UpdatePointLabel(self, mDataDict): + """Updates the pointLabel point on screen with data contained in + mDataDict. + + mDataDict will be passed to your function set by + SetPointLabelFunc. It can contain anything you + want to display on the screen at the scaledXY point + you specify. + + This function can be called from parent window with onClick, + onMotion events etc. + """ + if self.last_PointLabel != None: + #compare pointXY + if _Numeric.sometrue(mDataDict["pointXY"] != self.last_PointLabel["pointXY"]): + #closest changed + self._drawPointLabel(self.last_PointLabel) #erase old + self._drawPointLabel(mDataDict) #plot new + else: + #just plot new with no erase + self._drawPointLabel(mDataDict) #plot new + #save for next erase + self.last_PointLabel = mDataDict # event handlers ********************************** def OnMotion(self, event): @@ -843,68 +1182,119 @@ 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) + 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): # All that is needed here is to draw the buffer to screen - dc = wx.BufferedPaintDC(self, self._Buffer) + if self.last_PointLabel != None: + self._drawPointLabel(self.last_PointLabel) #erase old + self.last_PointLabel = None + 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 + if self.last_draw is None: 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""" + if self.last_PointLabel != None: + 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]) + self.plotbox_size = 0.97*_Numeric.array([self.width, self.height]) xo = 0.5*(self.width-self.plotbox_size[0]) yo = self.height-0.5*(self.height-self.plotbox_size[1]) - self.plotbox_origin = Numeric.array([xo, yo]) + self.plotbox_origin = _Numeric.array([xo, yo]) def _setPrinterScale(self, scale): """Used to thicken lines and increase marker size for print out.""" @@ -915,7 +1305,24 @@ 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""" + width = self._Buffer.GetWidth() + height = self._Buffer.GetHeight() + tmp_Buffer = wx.EmptyBitmap(width,height) + dcs = wx.MemoryDC() + dcs.SelectObject(tmp_Buffer) + dcs.Clear() + dcs.BeginDrawing() + self._pointLabelFunc(dcs,mDataDict) #custom user pointLabel function + dcs.EndDrawing() + + 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 + def _drawLegend(self,dc,graphics,rhsW,topH,legendBoxWH, legendSymExt, legendTextExt): """Draws legend symbols and text""" @@ -930,12 +1337,12 @@ class PlotCanvas(wx.Window): if isinstance(o,PolyMarker): # draw marker with legend pnt= (trhc[0]+legendLHS+legendSymExt[0]/2., trhc[1]+s+lineHeight/2.) - o.draw(dc, self.printerScale, coord= Numeric.array([pnt])) + o.draw(dc, self.printerScale, coord= _Numeric.array([pnt])) elif isinstance(o,PolyLine): # draw line with legend pnt1= (trhc[0]+legendLHS, trhc[1]+s+lineHeight/2.) pnt2= (trhc[0]+legendLHS+legendSymExt[0], trhc[1]+s+lineHeight/2.) - o.draw(dc, self.printerScale, coord= Numeric.array([pnt1,pnt2])) + o.draw(dc, self.printerScale, coord= _Numeric.array([pnt1,pnt2])) else: raise TypeError, "object is neither PolyMarker or PolyLine instance" # draw legend txt @@ -967,7 +1374,7 @@ class PlotCanvas(wx.Window): txtList= graphics.getLegendNames() txtExt= dc.GetTextExtent(txtList[0]) for txt in graphics.getLegendNames()[1:]: - txtExt= Numeric.maximum(txtExt,dc.GetTextExtent(txt)) + txtExt= _Numeric.maximum(txtExt,dc.GetTextExtent(txt)) maxW= symExt[0]+txtExt[0] maxH= max(symExt[1],txtExt[1]) # padding .1 for lhs of legend box and space between lines @@ -981,7 +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 ) ) @@ -1007,14 +1414,14 @@ class PlotCanvas(wx.Window): def _point2ClientCoord(self, corner1, corner2): """Converts user point coords to client screen int coords x,y,width,height""" - c1= Numeric.array(corner1) - c2= Numeric.array(corner2) + c1= _Numeric.array(corner1) + c2= _Numeric.array(corner2) # convert to screen coords pt1= c1*self._pointScale+self._pointShift pt2= c2*self._pointScale+self._pointShift # make height and width positive - pul= Numeric.minimum(pt1,pt2) # Upper left corner - plr= Numeric.maximum(pt1,pt2) # Lower right corner + pul= _Numeric.minimum(pt1,pt2) # Upper left corner + plr= _Numeric.maximum(pt1,pt2) # Lower right corner rectWidth, rectHeight= plr-pul ptx,pty= pul return ptx, pty, rectWidth, rectHeight @@ -1030,8 +1437,8 @@ class PlotCanvas(wx.Window): range = upper-lower if range == 0.: return lower-0.5, upper+0.5 - log = Numeric.log10(range) - power = Numeric.floor(log) + log = _Numeric.log10(range) + power = _Numeric.floor(log) fraction = log-power if fraction <= 0.05: power = power-1 @@ -1053,13 +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 @@ -1068,11 +1482,11 @@ class PlotCanvas(wx.Window): lower, upper = p1[0],p2[0] text = 1 for y, d in [(p1[1], -xTickLength), (p2[1], xTickLength)]: # miny, maxy and tick lengths - a1 = scale*Numeric.array([lower, y])+shift - a2 = scale*Numeric.array([upper, y])+shift + a1 = scale*_Numeric.array([lower, y])+shift + a2 = scale*_Numeric.array([upper, y])+shift dc.DrawLine(a1[0],a1[1],a2[0],a2[1]) # draws upper and lower axis line for x, label in xticks: - pt = scale*Numeric.array([x, y])+shift + pt = scale*_Numeric.array([x, y])+shift dc.DrawLine(pt[0],pt[1],pt[0],pt[1] + d) # draws tick mark d units if text: dc.DrawText(label,pt[0],pt[1]) @@ -1083,26 +1497,69 @@ class PlotCanvas(wx.Window): text = 1 h = dc.GetCharHeight() for x, d in [(p1[0], -yTickLength), (p2[0], yTickLength)]: - a1 = scale*Numeric.array([x, lower])+shift - a2 = scale*Numeric.array([x, upper])+shift + a1 = scale*_Numeric.array([x, lower])+shift + a2 = scale*_Numeric.array([x, upper])+shift dc.DrawLine(a1[0],a1[1],a2[0],a2[1]) for y, label in yticks: - pt = scale*Numeric.array([x, y])+shift + pt = scale*_Numeric.array([x, y])+shift dc.DrawLine(pt[0],pt[1],pt[0]-d,pt[1]) if text: dc.DrawText(label,pt[0]-dc.GetTextExtent(label)[0], 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) - power = Numeric.floor(log) + log = _Numeric.log10(ideal) + power = _Numeric.floor(log) fraction = log-power factor = 1. error = fraction for f, lf in self._multiples: - e = Numeric.fabs(fraction-lf) + e = _Numeric.fabs(fraction-lf) if e < error: error = e factor = f @@ -1116,14 +1573,69 @@ class PlotCanvas(wx.Window): digits = -int(power) format = '%'+`digits+2`+'.'+`digits`+'f' ticks = [] - t = -grid*Numeric.floor(-lower/grid) + t = -grid*_Numeric.floor(-lower/grid) while t <= upper: ticks.append( (t, format % (t,)) ) t = t + grid return ticks - _multiples = [(2., Numeric.log10(2.)), (5., Numeric.log10(5.))] + _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 @@ -1198,10 +1710,88 @@ class PlotPrintout(wx.Printout): # rescale back to original self.graph._setSize() self.graph._setPrinterScale(1) + self.graph.Redraw() #to get point label scale and shift correct 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) + #--------------------------------------------------------------------------- @@ -1212,19 +1802,19 @@ class PlotPrintout(wx.Printout): def _draw1Objects(): # 100 points sin function, plotted as green circles - data1 = 2.*Numeric.pi*Numeric.arange(200)/200. + data1 = 2.*_Numeric.pi*_Numeric.arange(200)/200. data1.shape = (100, 2) - data1[:,1] = Numeric.sin(data1[:,0]) + data1[:,1] = _Numeric.sin(data1[:,0]) markers1 = PolyMarker(data1, legend='Green Markers', colour='green', marker='circle',size=1) # 50 points cos function, plotted as red line - data1 = 2.*Numeric.pi*Numeric.arange(100)/100. + data1 = 2.*_Numeric.pi*_Numeric.arange(100)/100. data1.shape = (50,2) - data1[:,1] = Numeric.cos(data1[:,0]) + data1[:,1] = _Numeric.cos(data1[:,0]) lines = PolyLine(data1, legend= 'Red Line', colour='red') # A few more points... - pi = Numeric.pi + pi = _Numeric.pi markers2 = PolyMarker([(0., 0.), (pi/4., 1.), (pi/2, 0.), (3.*pi/4., -1)], legend='Cross Legend', colour='blue', marker='cross') @@ -1233,19 +1823,19 @@ def _draw1Objects(): def _draw2Objects(): # 100 points sin function, plotted as green dots - data1 = 2.*Numeric.pi*Numeric.arange(200)/200. + data1 = 2.*_Numeric.pi*_Numeric.arange(200)/200. data1.shape = (100, 2) - data1[:,1] = Numeric.sin(data1[:,0]) + data1[:,1] = _Numeric.sin(data1[:,0]) line1 = PolyLine(data1, legend='Green Line', colour='green', width=6, style=wx.DOT) # 50 points cos function, plotted as red dot-dash - data1 = 2.*Numeric.pi*Numeric.arange(100)/100. + data1 = 2.*_Numeric.pi*_Numeric.arange(100)/100. data1.shape = (50,2) - data1[:,1] = Numeric.cos(data1[:,0]) + data1[:,1] = _Numeric.cos(data1[:,0]) line2 = PolyLine(data1, legend='Red Line', colour='red', width=3, style= wx.DOT_DASH) # A few more points... - pi = Numeric.pi + pi = _Numeric.pi markers1 = PolyMarker([(0., 0.), (pi/4., 1.), (pi/2, 0.), (3.*pi/4., -1)], legend='Cross Hatch Square', colour='blue', width= 3, size= 6, fillcolour= 'red', fillstyle= wx.CROSSDIAG_HATCH, @@ -1264,7 +1854,7 @@ def _draw3Objects(): def _draw4Objects(): # 25,000 point line - data1 = Numeric.arange(5e5,1e6,10) + data1 = _Numeric.arange(5e5,1e6,10) data1.shape = (25000, 2) line1 = PolyLine(data1, legend='Wide Line', colour='green', width=5) @@ -1297,6 +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): @@ -1337,7 +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) @@ -1349,8 +1950,13 @@ 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) + self.Bind(wx.EVT_MENU,self.OnEnableLegend, id=220) + menu.Append(222, 'Enable &Point Label', 'Show Closest Point', kind=wx.ITEM_CHECK) + self.Bind(wx.EVT_MENU,self.OnEnablePointLabel, id=222) + menu.Append(225, 'Scroll Up 1', 'Move View Up 1 Unit') self.Bind(wx.EVT_MENU,self.OnScrUp, id=225) menu.Append(230, 'Scroll Rt 2', 'Move View Right 2 Units') @@ -1371,14 +1977,58 @@ class TestFrame(wx.Frame): self.CreateStatusBar(1) self.client = PlotCanvas(self) + #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.canvas.Bind(wx.EVT_MOTION, self.OnMotion) + self.Show(True) + def DrawPointLabel(self, dc, mDataDict): + """This is the fuction that defines how the pointLabels are plotted + dc - DC that will be passed + mDataDict - Dictionary of data that you want to use for the pointLabel + + As an example I have decided I want a box at the curve point + with some text information about the curve plotted below. + Any wxDC method can be used. + """ + # ---------- + dc.SetPen(wx.Pen(wx.BLACK)) + dc.SetBrush(wx.Brush( wx.BLACK, wx.SOLID ) ) + + sx, sy = mDataDict["scaledXY"] #scaled x,y of closest point + dc.DrawRectangle( sx-5,sy-5, 10, 10) #10by10 square centered on point + px,py = mDataDict["pointXY"] + cNum = mDataDict["curveNum"] + pntIn = mDataDict["pIndex"] + legend = mDataDict["legend"] + #make a string to display + s = "Crv# %i, '%s', Pt. (%.2f,%.2f), PtInd %i" %(cNum, legend, px, py, pntIn) + dc.DrawText(s, sx , sy+1) + # ----------- + 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() + event.Skip() #allows plotCanvas OnMouseLeftDown to be called + + def OnMotion(self, event): + #show closest point (when enbled) + 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) + if dlst != []: #returns [] if none + curveNum, legend, pIndex, pointXY, scaledXY, distance = dlst + #make up dictionary to pass to my user function (see DrawPointLabel) + mDataDict= {"curveNum":curveNum, "legend":legend, "pIndex":pIndex,\ + "pointXY":pointXY, "scaledXY":scaledXY} + #pass dict to update the pointLabel + self.client.UpdatePointLabel(mDataDict) + event.Skip() #go to next handler def OnFilePageSetup(self, event): self.client.PageSetup() @@ -1416,12 +2066,12 @@ class TestFrame(wx.Frame): self.resetDefaults() drawObj= _draw4Objects() self.client.Draw(drawObj) -## # profile -## start = time.clock() -## for x in range(10): -## self.client.Draw(drawObj) -## print "10 plots of Draw4 took: %f sec."%(time.clock() - start) -## # profile end +## # profile +## start = _time.clock() +## for x in range(10): +## self.client.Draw(drawObj) +## print "10 plots of Draw4 took: %f sec."%(_time.clock() - start) +## # profile end def OnPlotDraw5(self, event): # Empty plot with just axes @@ -1440,6 +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() @@ -1453,13 +2109,21 @@ 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()) + def OnEnablePointLabel(self, event): + self.client.SetEnablePointLabel(event.IsChecked()) + def OnScrUp(self, event): self.client.ScrollUp(1) @@ -1479,9 +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():