rvb.py

Created by schraf

Created on August 19, 2021

597 Bytes


from math import *
from kandinsky import set_pixel, fill_rect, get_pixel

# Rayon (au carré) des 3 disques
R = 180*180
# Précision du tracé (mettre 1 par exemple)
pas = 4

def synthese(sous = 1):
  # Fond blanc si synthèse soustrative sinon noir	
  fill_rect(0,0,320,222,(255 * sous,) * 3)
  # On dessine les 3 disques centrés en (0,50), etc.
  for i, m in enumerate([[0,50],[320,50],[160,290]]):
    # On parcourt tous les pixels de l'écran
    for c in range(0,320,pas):
      for l in range(0,222,pas):
      	# Distance au carré entre le point (c,l) et le centre du disque
        d = (m[0] - c) ** 2 + (m[1] - l) ** 2
        # On est dans le disque ?
        if d < R:  
          # Couleur actuelle du pixel en (c,l)
          # On transforme en liste car un tuple n'est pas modifiable
          p = list(get_pixel(c,l))
          # Synthèse soustractive
          if sous:
            p[i] = int(max(p[i] - 255 * sqrt(d / R), 0))  
          # Synthèse additive
          else:
            p[i] = int(min(p[i] + 255 * sqrt(d / R), 255))  
          # On dessine le rectangle avec la précision voulue
          fill_rect(c,l,pas,pas,tuple(p))


from math import *
from kandinsky import set_pixel, fill_rect, get_pixel

R = 180*180
pas = 4

def synthese(sous = 1):
  fill_rect(0,0,320,222,(255 * sous,) * 3)
  for i, m in enumerate([[0,50],[320,50],[160,290]]):
    for c in range(0,320,pas):
      for l in range(0,222,pas):
        d = (m[0] - c) ** 2 + (m[1] - l) ** 2
        if d < R:  
          p = list(get_pixel(c,l))
          if sous:
            p[i] = int(max(p[i] - 255 * sqrt(d / R), 0))  
          else:
            p[i] = int(min(p[i] + 255 * sqrt(d / R), 255))  
          fill_rect(c,l,pas,pas,tuple(p))

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