added graph

raspberry-pi/gui/graph.py

@@ -0,0 +1,49 @@
+import tkinter as tk
+import time, math, noise
+from PIL import Image, ImageDraw, ImageTk
+
+class Graph(tk.Canvas):
+  def __init__(self, root, **kwargs):
+    self.root = root
+    tk.Canvas.__init__(self, root, **kwargs)
+    self.height = self.winfo_reqheight()
+    self.width = self.winfo_reqwidth()
+    self.coord = [(10, 50), (20, 50), (100, 100)]
+    
+    self.drawBackground()
+    self.canvas = self.bg.copy()
+    self.image = self.create_image(0, 0, image=None, anchor='nw')
+
+    self.bind("<Configure>", self.on_resize)
+    self.n = 0
+
+  def drawBackground(self):
+    self.bg = Image.new('RGB', (self.width, self.height), (0,20,0))
+    draw = ImageDraw.Draw(self.bg)
+    draw.line([(0, self.height/2), (self.width, self.height/2)], (0,127,127), 1)
+    draw.line([(self.width/2, 0), (self.width/2, self.height)], (0,127,127), 1)
+
+
+  def on_resize(self,event):
+    # determine the ratio of old width/height to new width/height
+    self.width = max(400, event.width-4)
+    self.height = max(400, event.height-4)
+    # resize the canvas 
+    self.config(width=self.width, height=self.height)
+    self.canvas = self.canvas.resize((self.width, self.height))
+    self.drawBackground()
+    self.canvas = Image.blend(self.canvas, self.bg, 0.1)
+
+  def update(self):
+    self.coord = [self.coord[-1]]
+    for i in range(30):
+      self.coord.append(((noise.pnoise1(self.n)+1)*self.width/2, (noise.pnoise1(self.n*1.3+3)+1)*self.height/2))
+
+      self.n += 0.001
+
+    self.canvas = Image.blend(self.canvas, self.bg, 1/250)
+    draw = ImageDraw.Draw(self.canvas)
+    draw.line(self.coord, fill=(100, 255, 100, 255), width=int(self.height/100), joint='curve')
+
+    self.photo = ImageTk.PhotoImage(self.canvas)
+    self.itemconfig(self.image, image=self.photo)

raspberry-pi/gui/mainWindow.py

@@ -0,0 +1,30 @@
+import tkinter as tk
+import time
+
+from graph import Graph
+
+class MainWindow(tk.Frame):
+  def __init__(self, root):
+    self.root = root
+    tk.Frame.__init__(self, root)
+
+    self.graph = Graph(self)
+    self.graph.pack(fill=tk.BOTH, side=tk.LEFT, expand=True)
+
+    self.controls = tk.Frame(self)
+    self.controls.pack(fill=tk.BOTH, side=tk.RIGHT)
+
+    l = tk.Label(self.controls, text="your widgets go here...", anchor="c")
+    l.pack(side="top", fill="both", expand=True)
+
+  def update(self):
+    self.graph.update()
+    self.root.after(30, self.update)
+
+if __name__ == "__main__":
+  root = tk.Tk()
+  root.title("Tracking System")
+  view = MainWindow(root)
+  view.pack(side="top", fill="both", expand=True)
+  view.update()
+  root.mainloop()