#!/usr/bin/env python2.3 try: import Numeric import RandomArray haveNumeric = True except ImportError: try: import numarray as Numeric import numarray.random_array as RandomArray haveNumeric = True except ImportError: haveNumeric = False if not haveNumeric: errorText = """ The FloatCanvas requires either the Numeric or Numarray module: You can get them at: http://sourceforge.net/projects/numpy NOTE: The Numeric module is substantially faster than numarray for this purpose, if you have lot's of objects """ def runTest(frame, nb, log): dlg = wx.MessageDialog(frame, errorText, 'Sorry', wx.OK | wx.ICON_INFORMATION) dlg.ShowModal() dlg.Destroy() overview = "" else: StartUpDemo = "all" if __name__ == "__main__": # parse options if run stand-alone # check options: import sys, getopt optlist, args = getopt.getopt(sys.argv[1:],'l',["local","all","text","map","stext","hit","hitf","animate","speed","temp","props"]) for opt in optlist: if opt[0] == "--all": StartUpDemo = "all" elif opt[0] == "--text": StartUpDemo = "text" elif opt[0] == "--map": StartUpDemo = "map" elif opt[0] == "--stext": StartUpDemo = "stext" elif opt[0] == "--hit": StartUpDemo = "hit" elif opt[0] == "--hitf": StartUpDemo = "hitf" elif opt[0] == "--animate": StartUpDemo = "animate" elif opt[0] == "--speed": StartUpDemo = "speed" elif opt[0] == "--temp": StartUpDemo = "temp" elif opt[0] == "--props": StartUpDemo = "props" import wx import time, random def runTest(frame, nb, log): """ This method is used by the wxPython Demo Framework for integrating this demo with the rest. """ win = DrawFrame(None, -1, "FloatCanvas Drawing Window",wx.DefaultPosition,(500,500)) frame.otherWin = win win.Show(True) win.DrawTest() try: from floatcanvas import NavCanvas, FloatCanvas except ImportError: # if it's not there locally, try the wxPython lib. from wx.lib.floatcanvas import NavCanvas, FloatCanvas import wxPython.lib.colourdb class DrawFrame(wx.Frame): """ A frame used for the FloatCanvas Demo """ def __init__(self,parent, id,title,position,size): wx.Frame.__init__(self,parent, id,title,position, size) ## Set up the MenuBar MenuBar = wx.MenuBar() file_menu = wx.Menu() item = file_menu.Append(-1, "&Close","Close this frame") self.Bind(wx.EVT_MENU, self.OnQuit, item) MenuBar.Append(file_menu, "&File") draw_menu = wx.Menu() item = draw_menu.Append(-1, "&Draw Test","Run a test of drawing random components") self.Bind(wx.EVT_MENU, self.DrawTest, item) item = draw_menu.Append(-1, "&Line Test","Run a test of drawing random lines") self.Bind(wx.EVT_MENU, self.LineTest, item) item = draw_menu.Append(-1, "Draw &Map","Run a test of drawing a map") self.Bind(wx.EVT_MENU, self.DrawMap, item) item = draw_menu.Append(-1, "&Text Test","Run a test of text drawing") self.Bind(wx.EVT_MENU, self.TestText, item) item = draw_menu.Append(-1, "&ScaledText Test","Run a test of text drawing") self.Bind(wx.EVT_MENU, self.TestScaledText, item) item = draw_menu.Append(-1, "&Clear","Clear the Canvas") self.Bind(wx.EVT_MENU, self.Clear, item) item = draw_menu.Append(-1, "&Hit Test","Run a test of the hit test code") self.Bind(wx.EVT_MENU, self.TestHitTest, item) item = draw_menu.Append(-1, "Hit Test &Foreground","Run a test of the hit test code with a foreground Object") self.Bind(wx.EVT_MENU, self.TestHitTestForeground, item) item = draw_menu.Append(-1, "&Animation","Run a test of Animation") self.Bind(wx.EVT_MENU, self.TestAnimation, item) item = draw_menu.Append(-1, "&Speed","Run a test of Drawing Speed") self.Bind(wx.EVT_MENU, self.SpeedTest, item) item = draw_menu.Append(-1, "Change &Properties","Run a test of Changing Object Properties") self.Bind(wx.EVT_MENU, self.PropertiesChangeTest, item) MenuBar.Append(draw_menu, "&Tests") view_menu = wx.Menu() item = view_menu.Append(-1, "Zoom to &Fit","Zoom to fit the window") self.Bind(wx.EVT_MENU, self.ZoomToFit, item) MenuBar.Append(view_menu, "&View") help_menu = wx.Menu() item = help_menu.Append(-1, "&About", "More information About this program") self.Bind(wx.EVT_MENU, self.OnAbout, item) MenuBar.Append(help_menu, "&Help") self.SetMenuBar(MenuBar) self.CreateStatusBar() # Add the Canvas self.Canvas = NavCanvas.NavCanvas(self, -1, (500,500), Debug = 0, BackgroundColor = "DARK SLATE BLUE") wx.EVT_CLOSE(self, self.OnCloseWindow) FloatCanvas.EVT_MOTION(self.Canvas, self.OnMove ) #FloatCanvas.EVT_LEFT_UP(self.Canvas, self.OnLeftUp ) self.EventsAreBound = False ## getting all the colors and linestyles for random objects wxPython.lib.colourdb.updateColourDB() self.colors = wxPython.lib.colourdb.getColourList() #self.LineStyles = FloatCanvas.DrawObject.LineStyleList.keys() return None def BindAllMouseEvents(self): if not self.EventsAreBound: ## Here is how you catch FloatCanvas mouse events FloatCanvas.EVT_LEFT_DOWN(self.Canvas, self.OnLeftDown ) FloatCanvas.EVT_LEFT_UP(self.Canvas, self.OnLeftUp ) FloatCanvas.EVT_LEFT_DCLICK(self.Canvas, self.OnLeftDouble ) FloatCanvas.EVT_MIDDLE_DOWN(self.Canvas, self.OnMiddleDown ) FloatCanvas.EVT_MIDDLE_UP(self.Canvas, self.OnMiddleUp ) FloatCanvas.EVT_MIDDLE_DCLICK(self.Canvas, self.OnMiddleDouble ) FloatCanvas.EVT_RIGHT_DOWN(self.Canvas, self.OnRightDown ) FloatCanvas.EVT_RIGHT_UP(self.Canvas, self.OnRightUp ) FloatCanvas.EVT_RIGHT_DCLICK(self.Canvas, self.OnRightDouble ) FloatCanvas.EVT_MOUSEWHEEL(self.Canvas, self.OnWheel ) self.EventsAreBound = True def UnBindAllMouseEvents(self): ## Here is how you catch FloatCanvas mouse events FloatCanvas.EVT_LEFT_DOWN(self.Canvas, None ) FloatCanvas.EVT_LEFT_UP(self.Canvas, None ) FloatCanvas.EVT_LEFT_DCLICK(self.Canvas, None) FloatCanvas.EVT_MIDDLE_DOWN(self.Canvas, None ) FloatCanvas.EVT_MIDDLE_UP(self.Canvas, None ) FloatCanvas.EVT_MIDDLE_DCLICK(self.Canvas, None ) FloatCanvas.EVT_RIGHT_DOWN(self.Canvas, None ) FloatCanvas.EVT_RIGHT_UP(self.Canvas, None ) FloatCanvas.EVT_RIGHT_DCLICK(self.Canvas, None ) FloatCanvas.EVT_MOUSEWHEEL(self.Canvas, None ) self.EventsAreBound = False def PrintCoords(self,event): print "coords are: %s"%(event.Coords,) print "pixel coords are: %s\n"%(event.GetPosition(),) def OnLeftDown(self, event): print "Left Button has been clicked in DrawFrame" self.PrintCoords(event) def OnLeftUp(self, event): print "Left up in DrawFrame" self.PrintCoords(event) def OnLeftDouble(self, event): print "Left Double Click in DrawFrame" self.PrintCoords(event) def OnMiddleDown(self, event): print "Middle Button clicked in DrawFrame" self.PrintCoords(event) def OnMiddleUp(self, event): print "Middle Button Up in DrawFrame" self.PrintCoords(event) def OnMiddleDouble(self, event): print "Middle Button Double clicked in DrawFrame" self.PrintCoords(event) def OnRightDown(self, event): print "Right Button has been clicked in DrawFrame" self.PrintCoords(event) def OnRightUp(self, event): print "Right Button Up in DrawFrame" self.PrintCoords(event) def OnRightDouble(self, event): print "Right Button Double clicked in DrawFrame" self.PrintCoords(event) def OnWheel(self, event): print "Mouse Wheel Moved in DrawFrame" self.PrintCoords(event) def OnMove(self, event): """ Updates the staus bar with the world coordinates """ self.SetStatusText("%.2f, %.2f"%tuple(event.Coords)) def OnAbout(self, event): print "OnAbout called" dlg = wx.MessageDialog(self, "This is a small program to demonstrate\n" "the use of the FloatCanvas\n", "About Me", wx.OK | wx.ICON_INFORMATION) dlg.ShowModal() dlg.Destroy() def ZoomToFit(self,event): self.Canvas.ZoomToBB() def Clear(self,event = None): self.UnBindAllMouseEvents() self.Canvas.ClearAll() self.Canvas.SetProjectionFun(None) self.Canvas.Draw() def OnQuit(self,event): self.Close(True) def OnCloseWindow(self, event): self.Destroy() def DrawTest(self,event=None): wx.GetApp().Yield() # import random # import RandomArray Range = (-10,10) colors = self.colors self.BindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) ## Random tests of everything: # Rectangles for i in range(3): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) h = random.randint(1,5) w = random.randint(1,5) Canvas.AddRectangle(x,y,w,h,LineWidth = lw,FillColor = colors[cf]) # Ellipses for i in range(3): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) h = random.randint(1,5) w = random.randint(1,5) Canvas.AddEllipse(x,y,h,w,LineWidth = lw,FillColor = colors[cf]) # Points for i in range(5): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) D = random.randint(1,50) cf = random.randint(0,len(colors)-1) Canvas.AddPoint((x,y), Color = colors[cf], Diameter = D) # Circles for i in range(5): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) D = random.randint(1,5) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) Canvas.AddCircle(x,y,D,LineWidth = lw,LineColor = colors[cl],FillColor = colors[cf]) Canvas.AddText("Circle # %i"%(i),x,y,Size = 12,BackgroundColor = None,Position = "cc") # Lines for i in range(5): points = [] for j in range(random.randint(2,10)): point = (random.randint(Range[0],Range[1]),random.randint(Range[0],Range[1])) points.append(point) lw = random.randint(1,10) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) Canvas.AddLine(points, LineWidth = lw, LineColor = colors[cl]) # Polygons for i in range(3): points = [] for j in range(random.randint(2,6)): point = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) points.append(point) lw = random.randint(1,6) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) Canvas.AddPolygon(points, LineWidth = lw, LineColor = colors[cl], FillColor = colors[cf], FillStyle = 'Solid') ## Pointset for i in range(4): points = [] points = RandomArray.uniform(Range[0],Range[1],(100,2)) cf = random.randint(0,len(colors)-1) D = random.randint(1,4) Canvas.AddPointSet(points, Color = colors[cf], Diameter = D) # Text String = "Unscaled text" for i in range(3): ts = random.randint(10,40) cf = random.randint(0,len(colors)-1) x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) Canvas.AddText(String, x, y, Size = ts, Color = colors[cf], Position = "cc") # Scaled Text String = "Scaled text" for i in range(3): ts = random.random()*3 + 0.2 cf = random.randint(0,len(colors)-1) x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) Canvas.AddScaledText(String, x, y, Size = ts, Color = colors[cf], Position = "cc") Canvas.ZoomToBB() def TestAnimation(self,event=None): """ In this test, a relatively complex background is drawn, and a simple object placed in the foreground is moved over it. This demonstrates how to use the InForeground attribute to make an object in the foregorund draw fast, without having to re-draw the whole background. """ wx.GetApp().Yield() Range = (-10,10) self.Range = Range self.UnBindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) ## Random tests of everything: colors = self.colors # Rectangles for i in range(3): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) h = random.randint(1,5) w = random.randint(1,5) Canvas.AddRectangle(x,y,h,w,LineWidth = lw,FillColor = colors[cf]) # Ellipses for i in range(3): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) h = random.randint(1,5) w = random.randint(1,5) Canvas.AddEllipse(x,y,h,w,LineWidth = lw,FillColor = colors[cf]) # Circles for i in range(5): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) D = random.randint(1,5) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) Canvas.AddCircle(x,y,D,LineWidth = lw,LineColor = colors[cl],FillColor = colors[cf]) Canvas.AddText("Circle # %i"%(i),x,y,Size = 12,BackgroundColor = None,Position = "cc") # Lines for i in range(5): points = [] for j in range(random.randint(2,10)): point = (random.randint(Range[0],Range[1]),random.randint(Range[0],Range[1])) points.append(point) lw = random.randint(1,10) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) Canvas.AddLine(points, LineWidth = lw, LineColor = colors[cl]) # Polygons for i in range(3): points = [] for j in range(random.randint(2,6)): point = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) points.append(point) lw = random.randint(1,6) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) Canvas.AddPolygon(points, LineWidth = lw, LineColor = colors[cl], FillColor = colors[cf], FillStyle = 'Solid') # Scaled Text String = "Scaled text" for i in range(3): ts = random.random()*3 + 0.2 cf = random.randint(0,len(colors)-1) x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) Canvas.AddScaledText(String, x, y, Size = ts, Color = colors[cf], Position = "cc") # Now the Foreground Object: C = Canvas.AddCircle(0,0,7,LineWidth = 2,LineColor = "Black",FillColor = "Red", InForeground = True) T = Canvas.AddScaledText("Click to Move",0,0, Size = 0.6, Position = 'cc', InForeground = True) C.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.MoveMe) C.Text = T self.Timer = wx.PyTimer(self.ShowFrame) self.FrameDelay = 50 # milliseconds Canvas.ZoomToBB() def ShowFrame(self): Object = self.MovingObject Range = self.Range if self.TimeStep < self.NumTimeSteps: x,y = Object.XY if x > Range[1] or x < Range[0]: self.dx = -self.dx if y > Range[1] or y < Range[0]: self.dy = -self.dy Object.Move( (self.dx,self.dy) ) Object.Text.Move( (self.dx,self.dy)) self.Canvas.Draw() self.TimeStep += 1 wx.GetApp().Yield(True) else: self.Timer.Stop() def MoveMe(self, Object): self.MovingObject = Object Range = self.Range self.dx = random.uniform(Range[0]/4,Range[1]/4) self.dy = random.uniform(Range[0]/4,Range[1]/4) #import time #start = time.time() self.NumTimeSteps = 200 self.TimeStep = 1 self.Timer.Start(self.FrameDelay) #print "Did %i frames in %f seconds"%(N, (time.time() - start) ) def TestHitTest(self,event=None): wx.GetApp().Yield() self.UnBindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) #Add a HitAble rectangle w, h = 60, 20 dx = 80 dy = 40 x,y = 20, 20 FontSize = 8 #Add one that is not HitAble Canvas.AddRectangle(x, y, w, h, LineWidth = 2) Canvas.AddText("Not Hit-able", x, y, Size = FontSize, Position = "bl") x += dx R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2) R.Name = "Line Rectangle" R.HitFill = False R.HitLineWidth = 5 # Makes it a little easier to hit R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHit) Canvas.AddText("Left Click Line", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "Red" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + "Rectangle" R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHit) Canvas.AddText("Left Click Fill", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy color = "LightBlue" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHit) Canvas.AddText("Right Click Fill", x, y, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "Grey" R = Canvas.AddEllipse(x, y, w, h,LineWidth = 2,FillColor = color) R.Name = color +" Ellipse" R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHit) Canvas.AddText("Right Click Fill", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "Brown" R = Canvas.AddCircle(x+dx/2, y+dy/2, dx/4, LineWidth = 2, FillColor = color) R.Name = color + " Circle" R.HitFill = True R.Bind(FloatCanvas.EVT_FC_LEFT_DCLICK, self.RectGotHit) Canvas.AddText("Left D-Click Fill", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy color = "Pink" R = Canvas.AddCircle(x+dx/2, y+dy/2, dx/4, LineWidth = 2,FillColor = color) R.Name = color + " Circle" R.Bind(FloatCanvas.EVT_FC_LEFT_UP, self.RectGotHit) Canvas.AddText("Left Up Fill", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "White" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_MIDDLE_DOWN, self.RectGotHit) Canvas.AddText("Middle Down", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "AQUAMARINE" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_MIDDLE_UP, self.RectGotHit) Canvas.AddText("Middle Up", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy color = "CORAL" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_MIDDLE_DCLICK, self.RectGotHit) Canvas.AddText("Middle DoubleClick", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "CYAN" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_RIGHT_UP, self.RectGotHit) Canvas.AddText("Right Up", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "LIME GREEN" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_RIGHT_DCLICK, self.RectGotHit) Canvas.AddText("Right Double Click", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy color = "MEDIUM GOLDENROD" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHitRight) R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft) Canvas.AddText("L and R Click", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "SALMON" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color + " Rectangle" R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver) Canvas.AddText("Mouse Enter", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "MEDIUM VIOLET RED" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave) Canvas.AddText("Mouse Leave", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy color = "SKY BLUE" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color) R.Name = color R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver) R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave) Canvas.AddText("Enter and Leave", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "WHEAT" R = Canvas.AddRectangle(x, y, w+12, h, LineColor = None, FillColor = color) R.Name = color R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver) R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave) Canvas.AddText("Mouse Enter&Leave", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "KHAKI" R = Canvas.AddRectangle(x-12, y, w+12, h, LineColor = None, FillColor = color) R.Name = color R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver) R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave) Canvas.AddText("Mouse ENter&Leave", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy L = Canvas.AddLine(( (x, y), (x+10, y+10), (x+w, y+h) ), LineWidth = 2, LineColor = "Red") L.Name = "A Line" L.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft) Canvas.AddText("Left Down", x, y, Size = FontSize, Position = "bl") Canvas.AddText(L.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "SEA GREEN" Points = Numeric.array(( (x, y), (x, y+2.*h/3), (x+w, y+h), (x+w, y+h/2.), (x + 2.*w/3, y+h/2.), (x + 2.*w/3,y) ), Numeric.Float) R = Canvas.AddPolygon(Points, LineWidth = 2, FillColor = color) R.Name = color + " Polygon" R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHitRight) Canvas.AddText("RIGHT_DOWN", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x += dx color = "Red" Points = Numeric.array(( (x, y), (x, y+2.*h/3), (x+w, y+h), (x+w, y+h/2.), (x + 2.*w/3, y+h/2.), (x + 2.*w/3,y) ), Numeric.Float) R = Canvas.AddPointSet(Points, Diameter = 4, Color = color) R.Name = "PointSet" R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.PointSetGotHit) Canvas.AddText("LEFT_DOWN", x, y, Size = FontSize, Position = "bl") Canvas.AddText(R.Name, x, y+h, Size = FontSize, Position = "tl") x = 20 y += dy T = Canvas.AddText("Hit-able Text", x, y, Size = 15, Color = "Red", Position = 'tl') T.Name = "Hit-able Text" T.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft) Canvas.AddText("Left Down", x, y, Size = FontSize, Position = "bl") x += dx T = Canvas.AddScaledText("Scaled Text", x, y, Size = 1./2*h, Color = "Pink", Position = 'bl') Canvas.AddPointSet( (x, y), Diameter = 3) T.Name = "Scaled Text" T.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft) Canvas.AddText("Left Down", x, y, Size = FontSize, Position = "tl") self.Canvas.ZoomToBB() def TestHitTestForeground(self,event=None): wx.GetApp().Yield() self.UnBindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) #Add a Hitable rectangle w, h = 60, 20 dx = 80 dy = 40 x,y = 20, 20 color = "Red" R = Canvas.AddRectangle(x, y, w, h, LineWidth = 2, FillColor = color, InForeground = False) R.Name = color + "Rectangle" R.HitFill = True R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHit) Canvas.AddText("Left Click Fill", x, y, Position = "bl") Canvas.AddText(R.Name, x, y+h, Position = "tl") ## A set of Rectangles that move together ## NOTE: In a real app, it might be better to create a new ## custom FloatCanvas DrawObject self.MovingRects = [] x += dx color = "LightBlue" R = Canvas.AddRectangle(x, y, w/2, h/2, LineWidth = 2, FillColor = color, InForeground = True) R.HitFill = True R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveLeft) L = Canvas.AddText("Left", x + w/4, y + h/4, Position = "cc", InForeground = True) self.MovingRects.extend( (R,L) ) x += w/2 R = Canvas.AddRectangle(x, y, w/2, h/2, LineWidth = 2, FillColor = color, InForeground = True) R.HitFill = True R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveRight) L = Canvas.AddText("Right", x + w/4, y + h/4, Position = "cc", InForeground = True) self.MovingRects.extend( (R,L) ) x -= w/2 y += h/2 R = Canvas.AddRectangle(x, y, w/2, h/2, LineWidth = 2, FillColor = color, InForeground = True) R.HitFill = True R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveUp) L = Canvas.AddText("Up", x + w/4, y + h/4, Position = "cc", InForeground = True) self.MovingRects.extend( (R,L) ) x += w/2 R = Canvas.AddRectangle(x, y, w/2, h/2, LineWidth = 2, FillColor = color, InForeground = True) R.HitFill = True R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveDown) L = Canvas.AddText("Down", x + w/4, y + h/4, Position = "cc", InForeground = True) self.MovingRects.extend( (R,L) ) self.Canvas.ZoomToBB() def RectMoveLeft(self,Object): self.MoveRects("left") def RectMoveRight(self,Object): self.MoveRects("right") def RectMoveUp(self,Object): self.MoveRects("up") def RectMoveDown(self,Object): self.MoveRects("down") def MoveRects(self, Dir): for Object in self.MovingRects: X,Y = Object.XY if Dir == "left": X -= 10 elif Dir == "right": X += 10 elif Dir == "up": Y += 10 elif Dir == "down": Y -= 10 Object.SetXY(X,Y) self.Canvas.Draw() def PointSetGotHit(self, Object): print Object.Name, "Got Hit\n" def RectGotHit(self, Object): print Object.Name, "Got Hit\n" def RectGotHitRight(self, Object): print Object.Name, "Got Hit With Right\n" def RectGotHitLeft(self, Object): print Object.Name, "Got Hit with Left\n" def RectMouseOver(self, Object): print "Mouse entered:", Object.Name def RectMouseLeave(self, Object): print "Mouse left ", Object.Name def TestText(self, event= None): wx.GetApp().Yield() self.BindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) x,y = (0, 0) ## Add a non-visible rectangle, just to get a Bounding Box ## Text objects have a zero-size bounding box, because it changes with zoom Canvas.AddRectangle(-10,-10,20,20,LineWidth = 1, LineColor = None) # Text String = "Some text" self.Canvas.AddText("Top Left",x,y,Size = 14,Color = "Yellow",BackgroundColor = "Blue", Position = "tl") self.Canvas.AddText("Bottom Left",x,y,Size = 14,Color = "Cyan",BackgroundColor = "Black",Position = "bl") self.Canvas.AddText("Top Right",x,y,Size = 14,Color = "Black",BackgroundColor = "Cyan",Position = "tr") self.Canvas.AddText("Bottom Right",x,y,Size = 14,Color = "Blue",BackgroundColor = "Yellow",Position = "br") Canvas.AddPointSet((x,y), Color = "White", Diameter = 2) x,y = (0, 2) Canvas.AddPointSet((x,y), Color = "White", Diameter = 2) self.Canvas.AddText("Top Center",x,y,Size = 14,Color = "Black",Position = "tc") self.Canvas.AddText("Bottom Center",x,y,Size = 14,Color = "White",Position = "bc") x,y = (0, 4) Canvas.AddPointSet((x,y), Color = "White", Diameter = 2) self.Canvas.AddText("Center Right",x,y,Size = 14,Color = "Black",Position = "cr") self.Canvas.AddText("Center Left",x,y,Size = 14,Color = "Black",Position = "cl") x,y = (0, -2) Canvas.AddPointSet((x,y), Color = "White", Diameter = 2) self.Canvas.AddText("Center Center",x,y,Size = 14,Color = "Black",Position = "cc") self.Canvas.AddText("40 Pixels",-10,8,Size = 40) self.Canvas.AddText("20 Pixels",-10,5,Size = 20) self.Canvas.AddText("10 Pixels",-10,3,Size = 10) self.Canvas.AddText("MODERN Font", -10, 0, Family = wx.MODERN) self.Canvas.AddText("DECORATIVE Font", -10, -1, Family = wx.DECORATIVE) self.Canvas.AddText("ROMAN Font", -10, -2, Family = wx.ROMAN) self.Canvas.AddText("SCRIPT Font", -10, -3, Family = wx.SCRIPT) self.Canvas.AddText("ROMAN BOLD Font", -10, -4, Family = wx.ROMAN, Weight=wx.BOLD) self.Canvas.AddText("ROMAN ITALIC BOLD Font", -10, -5, Family = wx.ROMAN, Weight=wx.BOLD, Style=wx.ITALIC) # NOTE: this font exists on my Linux box..who knows were else you'll find it! Font = wx.Font(20, wx.DEFAULT, wx.ITALIC, wx.NORMAL, False, "zapf chancery") self.Canvas.AddText("zapf chancery Font", -10, -6, Font = Font) self.Canvas.ZoomToBB() def TestScaledText(self, event= None): wx.GetApp().Yield() self.BindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) x,y = (0, 0) T = Canvas.AddScaledText("Top Left",x,y,Size = 5,Color = "Yellow",BackgroundColor = "Blue", Position = "tl") T = Canvas.AddScaledText("Bottom Left",x,y,Size = 5,Color = "Cyan",BackgroundColor = "Black",Position = "bl") T = Canvas.AddScaledText("Top Right",x,y,Size = 5,Color = "Black",BackgroundColor = "Cyan",Position = "tr") T = Canvas.AddScaledText("Bottom Right",x,y,Size = 5,Color = "Blue",BackgroundColor = "Yellow",Position = "br") Canvas.AddPointSet((x,y), Color = "Red", Diameter = 4) x,y = (0, 20) Canvas.AddScaledText("Top Center",x,y,Size = 7,Color = "Black",Position = "tc") Canvas.AddScaledText("Bottom Center",x,y,Size = 7,Color = "White",Position = "bc") Canvas.AddPointSet((x,y), Color = "White", Diameter = 4) x,y = (0, -20) Canvas.AddScaledText("Center Right",x,y,Size = 9,Color = "Black",Position = "cr") Canvas.AddScaledText("Center Left",x,y,Size = 9,Color = "Black",Position = "cl") Canvas.AddPointSet((x,y), Color = "White", Diameter = 4) x = -200 self.Canvas.AddScaledText("MODERN Font", x, 0, Size = 7, Family = wx.MODERN, Color = (0,0,0)) self.Canvas.AddScaledText("DECORATIVE Font", x, -10, Size = 7, Family = wx.DECORATIVE, Color = (0,0,1)) self.Canvas.AddScaledText("ROMAN Font", x, -20, Size = 7, Family = wx.ROMAN) self.Canvas.AddScaledText("SCRIPT Font", x, -30, Size = 7, Family = wx.SCRIPT) self.Canvas.AddScaledText("ROMAN BOLD Font", x, -40, Size = 7, Family = wx.ROMAN, Weight=wx.BOLD) self.Canvas.AddScaledText("ROMAN ITALIC BOLD Font", x, -50, Size = 7, Family = wx.ROMAN, Weight=wx.BOLD, Style=wx.ITALIC) Canvas.AddPointSet((x,0), Color = "White", Diameter = 4) # NOTE: this font exists on my Linux box..who knows were else you'll find it! x,y = (-100, 50) Font = wx.Font(12, wx.DEFAULT, wx.ITALIC, wx.NORMAL, False, "zapf chancery") T = self.Canvas.AddScaledText("zapf chancery Font", x, y, Size = 20, Font = Font, Position = 'bc') x,y = (-50, -50) Font = wx.Font(12, wx.DEFAULT, wx.ITALIC, wx.NORMAL, False, "bookman") T = self.Canvas.AddScaledText("Bookman Font", x, y, Size = 8, Font = Font) self.Canvas.ZoomToBB() def DrawMap(self,event = None): wx.GetApp().Yield() import os, time self.BindAllMouseEvents() ## Test of Actual Map Data self.Canvas.ClearAll() self.Canvas.SetProjectionFun("FlatEarth") #start = time.clock() Shorelines = Read_MapGen(os.path.join("data",'world.dat'),stats = 0) #print "It took %f seconds to load %i shorelines"%(time.clock() - start,len(Shorelines) ) #start = time.clock() for segment in Shorelines: self.Canvas.AddLine(segment) #print "It took %f seconds to add %i shorelines"%(time.clock() - start,len(Shorelines) ) #start = time.clock() self.Canvas.ZoomToBB() #print "It took %f seconds to draw %i shorelines"%(time.clock() - start,len(Shorelines) ) def LineTest(self,event = None): wx.GetApp().Yield() import os, time # import random colors = self.colors Range = (-10,10) ## Test of drawing lots of lines Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) #start = time.clock() linepoints = [] linecolors = [] linewidths = [] for i in range(2000): points = (random.randint(Range[0],Range[1]), random.randint(Range[0],Range[1]), random.randint(Range[0],Range[1]), random.randint(Range[0],Range[1])) linepoints.append(points) linewidths.append(random.randint(1,10) ) linecolors.append(random.randint(0,len(colors)-1) ) for (points,color,width) in zip(linepoints,linecolors,linewidths): Canvas.AddLine((points[0:2],points[2:4]), LineWidth = width, LineColor = colors[color]) #print "It took %f seconds to add %i lines"%(time.clock() - start,len(linepoints) ) #start = time.clock() Canvas.ZoomToBB() #print "It took %f seconds to draw %i lines"%(time.clock() - start,len(linepoints) ) def SpeedTest(self,event=None): wx.GetApp().Yield() BigRange = (-1000,1000) colors = self.colors self.UnBindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) # Pointset coords = [] for i in range(1000): x,y = (random.uniform(BigRange[0],BigRange[1]),random.uniform(BigRange[0],BigRange[1])) coords.append( (x,y) ) print "Drawing the Points" start = time.clock() for Point in coords: Canvas.AddPoint(Point, Diameter = 4) print "It took %s seconds to add the points"%(time.clock() - start) Canvas.ZoomToBB() def PropertiesChangeTest(self,event=None): wx.GetApp().Yield() Range = (-10,10) colors = self.colors self.UnBindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) self.ColorObjectsAll = [] self.ColorObjectsLine = [] self.ColorObjectsColor = [] self.ColorObjectsText = [] ##One of each object: # Rectangle x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) h = random.randint(1,5) w = random.randint(1,5) self.Rectangle = Canvas.AddRectangle(x,y,w,h,LineWidth = lw,FillColor = colors[cf]) self.ColorObjectsAll.append(self.Rectangle) # Ellipse x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) h = random.randint(1,5) w = random.randint(1,5) self.Ellipse = Canvas.AddEllipse(x,y,h,w,LineWidth = lw,FillColor = colors[cf]) self.ColorObjectsAll.append(self.Ellipse) # Point xy = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) D = random.randint(1,50) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) self.ColorObjectsColor.append(Canvas.AddPoint(xy, colors[cf], D)) # Circle x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) D = random.randint(1,5) lw = random.randint(1,5) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) self.Circle = Canvas.AddCircle(x,y,D,LineWidth = lw,LineColor = colors[cl],FillColor = colors[cf]) self.ColorObjectsAll.append(self.Circle) # Line points = [] for j in range(random.randint(2,10)): point = (random.randint(Range[0],Range[1]),random.randint(Range[0],Range[1])) points.append(point) lw = random.randint(1,10) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) self.ColorObjectsLine.append(Canvas.AddLine(points, LineWidth = lw, LineColor = colors[cl])) # Polygon ## points = [] ## for j in range(random.randint(2,6)): ## point = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) ## points.append(point) points = RandomArray.uniform(Range[0],Range[1],(6,2)) lw = random.randint(1,6) cf = random.randint(0,len(colors)-1) cl = random.randint(0,len(colors)-1) self.ColorObjectsAll.append(Canvas.AddPolygon(points, LineWidth = lw, LineColor = colors[cl], FillColor = colors[cf], FillStyle = 'Solid')) ## Pointset points = RandomArray.uniform(Range[0],Range[1],(100,2)) cf = random.randint(0,len(colors)-1) D = random.randint(1,4) self.PointSet = Canvas.AddPointSet(points, Color = colors[cf], Diameter = D) self.ColorObjectsColor.append(self.PointSet) ## Point point = RandomArray.uniform(Range[0],Range[1],(2,)) cf = random.randint(0,len(colors)-1) D = random.randint(1,4) self.Point = Canvas.AddPoint(point, Color = colors[cf], Diameter = D) self.ColorObjectsColor.append(self.Point) # Text String = "Unscaled text" ts = random.randint(10,40) cf = random.randint(0,len(colors)-1) x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) self.ColorObjectsText.append(Canvas.AddText(String, x, y, Size = ts, Color = colors[cf], Position = "cc")) # Scaled Text String = "Scaled text" ts = random.random()*3 + 0.2 cf = random.randint(0,len(colors)-1) x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) self.ColorObjectsText.append(Canvas.AddScaledText(String, x, y, Size = ts, Color = colors[cf], Position = "cc")) # A "Button" Button = Canvas.AddRectangle(-10, -12, 20, 3, LineStyle = None, FillColor = "Red") Canvas.AddScaledText("Click Here To Change Properties", 0, -10.5, Size = 0.7, Color = "Black", Position = "cc") Button.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.ChangeProperties) Canvas.ZoomToBB() def ChangeProperties(self, Object = None): colors = self.colors Range = (-10,10) for Object in self.ColorObjectsAll: pass Object.SetFillColor(colors[random.randint(0,len(colors)-1)]) Object.SetLineColor(colors[random.randint(0,len(colors)-1)]) Object.SetLineWidth(random.randint(1,7)) Object.SetLineStyle(FloatCanvas.DrawObject.LineStyleList.keys()[random.randint(0,5)]) for Object in self.ColorObjectsLine: Object.SetLineColor(colors[random.randint(0,len(colors)-1)]) Object.SetLineWidth(random.randint(1,7)) Object.SetLineStyle(FloatCanvas.DrawObject.LineStyleList.keys()[random.randint(0,5)]) for Object in self.ColorObjectsColor: Object.SetColor(colors[random.randint(0,len(colors)-1)]) for Object in self.ColorObjectsText: Object.SetColor(colors[random.randint(0,len(colors)-1)]) Object.SetBackgroundColor(colors[random.randint(0,len(colors)-1)]) self.Circle.SetDiameter(random.randint(1,10)) self.PointSet.SetDiameter(random.randint(1,8)) self.Point.SetDiameter(random.randint(1,8)) for Object in (self.Rectangle, self.Ellipse): x,y = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) w,h = random.randint(1,5), random.randint(1,5) Object.SetShape(x,y,w,h) self.Canvas.Draw(Force = True) def TempTest(self, event= None): wx.GetApp().Yield() self.UnBindAllMouseEvents() Canvas = self.Canvas Canvas.ClearAll() Canvas.SetProjectionFun(None) Range = (-10,10) # Create a random Polygon points = [] for j in range(6): point = (random.uniform(Range[0],Range[1]),random.uniform(Range[0],Range[1])) points.append(point) Poly = Canvas.AddPolygon(points, LineWidth = 2, LineColor = "Black", FillColor = "LightBlue", FillStyle = 'Solid') Poly.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.SelectPoly) self.SelectedPoly = None self.SelectPoints = [] self.SelectedPoint = None Canvas.ZoomToBB() def SelectPoly(self, Object): print "In SelectPoly" Canvas = self.Canvas if Object is self.SelectedPoly: pass else: #fixme: Do something to unselect the old one self.SelectedPoly = Object Canvas.RemoveObjects(self.SelectPoints) self.SelectPoints = [] # Draw points on the Vertices of the Selected Poly: for i, point in enumerate(Object.Points): P = Canvas.AddPointSet(point, Diameter = 6, Color = "Red") P.VerticeNum = i P.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.SelectPointHit) self.SelectPoints.append(P) #Canvas.ZoomToBB() Canvas.Draw() def SelectPointHit(self, Point): print "Point Num: %i Hit"%Point.VerticeNum self.SelectedPoint = Point class DemoApp(wx.App): """ How the demo works: Under the Draw menu, there are three options: *Draw Test: will put up a picture of a bunch of randomly generated objects, of each kind supported. *Draw Map: will draw a map of the world. Be patient, it is a big map, with a lot of data, and will take a while to load and draw (about 10 sec on my 450Mhz PIII). Redraws take about 2 sec. This demonstrates how the performance is not very good for large drawings. *Clear: Clears the Canvas. Once you have a picture drawn, you can zoom in and out and move about the picture. There is a tool bar with three tools that can be selected. The magnifying glass with the plus is the zoom in tool. Once selected, if you click the image, it will zoom in, centered on where you clicked. If you click and drag the mouse, you will get a rubber band box, and the image will zoom to fit that box when you release it. The magnifying glass with the minus is the zoom out tool. Once selected, if you click the image, it will zoom out, centered on where you clicked. (note that this takes a while when you are looking at the map, as it has a LOT of lines to be drawn. The image is double buffered, so you don't see the drawing in progress) The hand is the move tool. Once selected, if you click and drag on the image, it will move so that the part you clicked on ends up where you release the mouse. Nothing is changed while you are dragging. The drawing is too slow for that. I'd like the cursor to change as you change tools, but the stock wxCursors didn't include anything I liked, so I stuck with the pointer. Please let me know if you have any nice cursor images for me to use. Any bugs, comments, feedback, questions, and especially code are welcome: -Chris Barker Chris.Barker@noaa.gov """ def __init__(self, *args, **kwargs): wx.App.__init__(self, *args, **kwargs) def OnInit(self): wx.InitAllImageHandlers() frame = DrawFrame(None, -1, "FloatCanvas Demo App",wx.DefaultPosition,(700,700)) self.SetTopWindow(frame) frame.Show() ## check to see if the demo is set to start in a particular mode. if StartUpDemo == "text": frame.TestText() if StartUpDemo == "stext": frame.TestScaledText() elif StartUpDemo == "all": frame.DrawTest() elif StartUpDemo == "map": frame.DrawMap() elif StartUpDemo == "hit": frame.TestHitTest() elif StartUpDemo == "hitf": "starting TestHitTestForeground" frame.TestHitTestForeground() elif StartUpDemo == "animate": "starting TestAnimation" frame.TestAnimation() elif StartUpDemo == "speed": "starting SpeedTest" frame.SpeedTest() elif StartUpDemo == "temp": "starting temp Test" frame.TempTest() elif StartUpDemo == "props": "starting PropertiesChange Test" frame.PropertiesChangeTest() return True def Read_MapGen(filename,stats = 0,AllLines=0): """ This function reads a MapGen Format file, and returns a list of NumPy arrays with the line segments in them. Each NumPy array in the list is an NX2 array of Python Floats. The demo should have come with a file, "world.dat" that is the shorelines of the whole world, in MapGen format. """ import string file = open(filename,'rt') data = file.readlines() data = map(string.strip,data) Shorelines = [] segment = [] for line in data: if line: if line == "# -b": #New segment beginning if segment: Shorelines.append(Numeric.array(segment)) segment = [] else: segment.append(map(float,string.split(line))) if segment: Shorelines.append(Numeric.array(segment)) if stats: NumSegments = len(Shorelines) NumPoints = 0 for segment in Shorelines: NumPoints = NumPoints + len(segment) AvgPoints = NumPoints / NumSegments print "Number of Segments: ", NumSegments print "Average Number of Points per segment: ",AvgPoints if AllLines: Lines = [] for segment in Shorelines: Lines.append(segment[0]) for point in segment[1:-1]: Lines.append(point) Lines.append(point) Lines.append(segment[-1]) return Lines else: return Shorelines ## for the wxPython demo: try: import floatcanvas except ImportError: # if it's not there locally, try the wxPython lib. from wx.lib import floatcanvas overview = floatcanvas.__doc__ if __name__ == "__main__": if not haveNumeric: print errorText else: app = DemoApp(False)# put in True if you want output to go to it's own window. app.MainLoop()