| Si ho letto che ci sono tool per velocizzare python. Si puo' anche integrare il C nei punti critici o importare librerie matematche specifiche molto prestanti. Non so dirti i nomi, non ricordo, ho letto un po' sul manuale. Io parlavo di python nudo e crudo. Su alcune cose risulta parecchio lento. Insomma, un pochino la comodita' la paghi. Certo su certe cose te ne puoi fregare...su altre no EDIT: questo è un esempio di grafica in Python. Il programma non è mio, ma essendo pubblico su un sito lo posto come esempio. Esegue una simulazione di un neurone di una rete neurale in base ai pesi di input e il bias. Notare come sia relativamente corto il programma. Credo che in C sia un suicidio. CODICE #------------------------------------------------------------------------------
# Simulazione singolo neurone con doppio ingresso.
#
#------------------------------------------------------------------------------
try:
import Tkinter as tk
except ImportError:
import tkinter as tk
from math import exp
#---------------------------------------------------------------------
PUNTI = 18
BIMG = ('R0lGODdh4ABJAOfRAAYGBggICAkJCQoKCgsLCwwMDA4ODg8PDxAQEBERERISE'
'hMTExUVFRYWFhcXFxgYGBkZGRoaGhsbGxwcHB4eHh8fHyAgICEhISIiIiMjIy'
'QkJCUlJSYmJicnJygoKCkpKSoqKisrKywsLC4uLjAwMDIyMjMzMzQ0NDU1NTY'
'2Njc3Nzg4ODk5OTo6Ojs7Ozw8PD09PT4+Pj8/P0BAQEFBQUJCQkREREVFRUZG'
'RkdHR0hISEpKSkxMTE1NTU5OTk9PT1BQUFFRUVJSUlNTU1RUVFZWVldXV1hYW'
'FlZWVpaWltbW1xcXF1dXV5eXmBgYGFhYWJiYmNjY2VlZWZmZmdnZ2lpaWtra2'
'1tbW5ubm9vb3BwcHFxcXNzc3R0dHV1dXZ2dnd3d3h4eHl5eXp6ent7e319fX9'
'/f4GBgYODg4SEhIWFhYaGhoeHh4mJiYqKiouLi4yMjI2NjY6Ojo+Pj5GRkZOT'
'k5SUlJWVlZaWlpeXl5mZmZqampubm5ycnJ2dnZ6enp+fn6CgoKGhoaOjo6Wlp'
'aampqenp6ioqKmpqaqqqqurq62tra+vr7CwsLGxsbOzs7W1tba2tre3t7i4uL'
'm5ubq6uru7u729vb+/v8DAwMHBwcLCwsPDw8TExMXFxcbGxsfHx8jIyMnJycv'
'Ly83Nzc/Pz9DQ0NHR0dPT09XV1dbW1tfX19jY2NnZ2dra2tvb29zc3N3d3d7e'
'3t/f3+Dg4OHh4eLi4uPj4+Tk5OXl5ebm5ufn5+jo6Onp6evr6+zs7O7u7u/v7'
'/Dw8PHx8fLy8vPz8/T09PX19fb29vf39/j4+Pn5+fr6+vv7+/z8/P39/f7+/v'
'/////////////////////////////////////////////////////////////'
'/////////////////////////////////////////////////////////////'
'/////////////////////////////////////////////////////////////'
'////ywAAAAA4ABJAAAI/gCjCRxIsKDBgwgTKlzIsKHDhxAjSpxIsaLFixgzat'
'zIsaPHjyBDihxJsqTJkyhTqlzJsqXLlzBjypxJs6bNmzhz6tzJs6fPnwyP6Xg'
'l0BKSZ8HI4EACtKlTiX5ePCNWAVO0XW3WgHjKtatCHXOkWCF4aavXs2hvNchg'
'jKxZtBSPvcpU6M2bQpleHYNbEtYBFs/cLkyTwsujYHyhhQrjIQAGGEi6dEECA'
'0OADmBAQeP78RmMOzvkCFZYjBKZFwJIZFnkiyuuKxA4fPm0+SC0T184QLiCiz'
'PHOTWg3YJAVGDZh8kwnalBAEQVQ7l8DhuTgIsqiKq4JBgzzDdGVw1m/gnsAwM'
'aNCM0DBjxE5GZJzY6DGiIIohWzjsNmNSiWItJgzveWSRLKgRt0hYmCGLiSkXO'
'jBKHDwpQsAQfrcyUzBEnmIKRKSYckUyAOkFzSh1EOPBAEXegUttKuqCgxIcZJ'
'aMECrqA2NMqeiQxwQJAzEFKYCedQsEbHr1BwSk2/hQLIE9gcMAObYDSzEi6UO'
'AISI5QUGOSQN1CCBUeEGADGpoo41EyKBAZ0hsowMhlU70ocsUIAsRQhiV7ZXS'
'EEiQpccSbXgHjCBcnBLACGJB0R9EdJrgZUjImAAjoWcRIIkYLApSwBSO/QDRM'
'AxqWZEoDik6KFjKXmDHDACJYgcgu/gyNwQRKTIxhqnfLcKIGDgVwIMUgthyES'
'wL7nVRLAr3dGmAzorzBAwIWNOFHcdFcwYVKXFyhLJfPlEKHEAxEcAQyEFyXki'
'oQrLgtl6kAAgoHLHEAyrqmgvEFS1+AQe+kHXzC0icd7PvmMQGoixI0AeQpMIi'
'vYOASBtSu1EwaK3zARLAIfeLJwhFlAoNLMGTiEhE92GJMHg7wglAaaHAMUSF/'
'toREIS2FogAxAz2RRTR2KCJQIISgcoEFMuDhckNvdOFSFzeY4fTTUEct9dRUP'
'22QHT0QVIgL0WwhWjRnrBENy0c7lPTSTVet9tpUG5TGEgRBEkLXX4c9dstlMw'
'Sz/kszt2SICQTB4QPdApEhNtl5L+QxyCKzJAwDkwhEzAaLRPOHFAKpIHYeSie'
'uUMMPR6xSJRNA4QUHXgikywRU0LCC2LJgMEUjniNEsMEnIawwS8FMckjExyyi'
'Ci3FMiMKLLUj1O+/ASePlr346uv8U8VIAoYKVMC7krzT/1T99QGoAIYkxJSrE'
'rq4d0/T9yqEP34xBFmLrbbq18S++5LALyyxKB2bbP0vuZ/48tcQWdHKVgBkiQ'
'DfF5FPhYokoypVAkuyQAJWhFGOAgmkJDVBkVRQf3ri00j81EGQfPAjaFITSNi'
'UwRJa5IRUshKWtOTCi8AwSEMq0pFqOJEbsshF7i2kiIxoxMOH+PAlF8rQhjoU'
'xHUpgweoEEgnhMCsH2QgCImQyBFpgh/98Mc/HDzaIUzQDGRsABLRiMRhNpEAW'
'TRkiziZTnXM5ZDsbEeCZRtCGrTgBIMQgQ4JgWNPXhOb2aQvGrfJzW7+57leRI'
'ACwijILyTwQLcNEIRnUQxjHAMZyVDGMpjRTPdusQASTGkgyajBGQQmF7rYBS9'
'6SWAO3EAEvEWDGTzAQhFdtocVPMORUWxGEKawS47VogGsEIghTuAMNgCgCEYw'
'giCKSS9aRHEgnRiGLBKECdFR85vgDKc4x0nOcprznOhMpzrDGRAAOw==')
#---------------------------------------------------------------------
class CUBE3D(object):
def __init__(self, canvas, x, y, wid, zmin, zmax):
self.canvas = canvas
self.x = x
self.y = y
self.wid = wid
self.zmin = zmin
self.zmax = zmax
self.gitm = []
def _rear_box(self):
x, y, wid, dw = self.x, self.y, self.wid, self.wid // 2
self.gitm.append(self.canvas.create_line(
x+dw, y-dw, x+dw+wid-1, y-dw, fill='#00aa00', dash=4)) # diet bas
self.gitm.append(self.canvas.create_line(
x, y, x+dw, y-dw, fill='blue', arrow='last')) # diag bas sx
self.gitm.append(self.canvas.create_line(
x+dw, y-dw, x+dw, y-dw-wid+1, fill='#00aa00', dash=4)) # diet sx
def _front_box(self):
x, y, wid, dw = self.x, self.y, self.wid, self.wid // 2
self.gitm.append(self.canvas.create_line(
x+dw+wid-1, y-dw-wid+1, x+dw+wid-1, y-dw,
fill='#00aa00', dash=4)) # diet dx
self.gitm.append(self.canvas.create_line(
x+wid-1, y-wid+1, x, y-wid+1, fill='#00aa00', dash=4))
self.gitm.append(self.canvas.create_line(
x+wid-1, y-wid+1, x+dw+wid-1, y-dw-wid+1, fill='#00aa00', dash=4))
self.gitm.append(self.canvas.create_line(
x+wid-1, y-wid+1, x+wid-1, y, fill='#00aa00', dash=4))
self.gitm.append(self.canvas.create_line(
x+dw+wid-1, y-dw-wid+1, x+dw, y-dw-wid+1,
fill='#00aa00', dash=4)) #diet alt
self.gitm.append(self.canvas.create_line(
x, y-wid+1, x+dw, y-dw-wid+1, fill='#00aa00', dash=4)) #diag alt sx
self.gitm.append(self.canvas.create_line(
x+wid-1, y, x+dw+wid-1, y-dw, fill='#00aa00', dash=4)) #diag bas dx
self.gitm.append(self.canvas.create_line(
x, y, x+wid-1, y, fill='blue', arrow='last')) # dav bas
self.gitm.append(self.canvas.create_line(
x, y, x, y-wid+1, fill='blue', arrow='last')) # dav sx
def _translate(self, z):
return self.y + z / (self.zmax-self.zmin) * (-self.wid + 1.0)
def draw(self, data):
for itm in self.gitm:
self.canvas.delete(itm)
self.gitm = []
self._rear_box()
nrow = len(data)
ncol = len(data[0])
dw = self.wid // 2
for y in range(nrow-1, 0, -1):
for x in range(ncol-1):
ddw = dw * y / (ncol - 1.0)
x1 = int(self.x + self.wid * x / (ncol - 1) - 1.0) + ddw
y1 = int(self._translate(data[y][x])) - ddw
x2 = int(self.x + self.wid * (x+1) / (ncol - 1) - 1.0) + ddw
y2 = int(self._translate(data[y][x+1])) - ddw
ddw = dw * (y-1) / (ncol - 1.0)
x3 = int(self.x + self.wid * (x+1) / (ncol - 1) - 1.0) + ddw
y3 = int(self._translate(data[y-1][x+1])) - ddw
x4 = int(self.x + self.wid * x / (ncol - 1) - 1.0) + ddw
y4 = int(self._translate(data[y-1][x])) - ddw
self.gitm.append(self.canvas.create_polygon(
x1, y1, x2, y2, x3, y3, x4, y4,
fill='red', outline='#cfcf00'))
self._front_box()
#---------------------------------------------------------------------
class GUI(object):
def __init__(self):
self.root = tk.Tk()
self.root.resizable(0, 0)
self.root.title('Two input neuron - By C.Fin 2016')
self.canvas = tk.Canvas(self.root, width=278, height=378,
relief="sunken", border=1,
bg='white', highlightthickness=0)
self.canvas.pack(side='left', padx=8, pady=8)
self.img = tk.PhotoImage(data=BIMG)
self.canvas.create_image(140, 328, image=self.img, anchor='center')
self.frameDestra = tk.Frame(self.root)
self.frameDestra.pack(side='left', fill='y', expand=1, pady=8, padx=8)
tk.Label(self.frameDestra, text="Peso\nwx1").grid(row=0, column=0)
tk.Label(self.frameDestra, text="Peso\nwx2").grid(row=0, column=1)
tk.Label(self.frameDestra, text="Peso\nbias").grid(row=0,column=2)
self.wx1Scale = tk.Scale(
self.frameDestra, from_=20., to=-20.,
orient="vertical", showvalue=0, length=180, resolution=0.01)
self.wx1Scale.grid(row=1, column=0)
self.wx2Scale = tk.Scale(
self.frameDestra, from_=20., to=-20.,
orient="vertical", showvalue=0, length=180, resolution=0.01)
self.wx2Scale.grid(row=1, column=1)
self.biasScale = tk.Scale(
self.frameDestra, from_=20., to=-20.,
orient="vertical", showvalue=0, length=180, resolution=0.01)
self.biasScale.grid(row=1, column=2)
self.labelwx1 = tk.Label(self.frameDestra, width=6)
self.labelwx1.grid(row=2, column=0)
self.labelwx2 = tk.Label(self.frameDestra, width=6)
self.labelwx2.grid(row=2, column=1)
self.labelBias = tk.Label(self.frameDestra, width=6)
self.labelBias.grid(row=2, column=2)
self.buttonReset = tk.Button(
self.frameDestra, text="Reset", width=10)
self.buttonReset.grid(row=3, column=0, columnspan=3, pady=48)
#---------------------------------------------------------------------
class App(object):
def __init__(self):
self.gui = GUI()
self.c3d = CUBE3D(self.gui.canvas, 6, 273, 180, 0.0, 1.0)
self.gui.biasScale.configure(command=self.draw)
self.gui.wx1Scale.configure(command=self.draw)
self.gui.wx2Scale.configure(command=self.draw)
self.gui.buttonReset.configure(command=self.reset)
self.data = [[0] * PUNTI for _ in range(PUNTI)]
def reset(self):
self.gui.wx1Scale.set(0)
self.gui.wx2Scale.set(0)
self.gui.biasScale.set(0)
def draw(self, ev=None):
self.gui.labelwx1.configure(text="%5.2f" % self.gui.wx1Scale.get())
self.gui.labelwx2.configure(text="%5.2f" % self.gui.wx2Scale.get())
self.gui.labelBias.configure(text="%5.2f" % self.gui.biasScale.get())
step = 1.0 / (PUNTI - 1)
for y in range(PUNTI):
for x in range(PUNTI):
a = (self.gui.wx1Scale.get() * x*step +
self.gui.wx2Scale.get() * y*step +
self.gui.biasScale.get())
self.data[y][x] = 1.0 / ( 1.0 + exp(-a) )
self.c3d.draw(self.data)
def start(self):
self.gui.root.mainloop()
#---------------------------------------------------------------------
app = App()
app.start() Suppongo sia inutile dirlo: salvare su un file con estensione .py lanciare da terminale python prog.py (almeno su Ubuntu) C'è da dire che l'autore (io so chi è) è un tipo che a dire che è tosto è dire poco. Edited by GILA75 - 26/4/2018, 16:08 |
