PyGGB (test): Truchet triangles & symétries
# truchet triangles 5/05/2023
from random import*
import time
# background:
A=Point(-100,-100, is_visible=False)
B=Point(100,-100, is_visible=False)
background=Polygon(A,B,4,opacity=1,color=[1,1,1])
def motif(n,m):
for i in range(n):
for j in range(m):
r=random()
col=[(i+j)/(2*n),(i+j)/(2*n)*r,r**2]
if r<0.25 :
l=[Point(i,j,is_visible=False),Point(i+1,j,is_visible=False),Point(i+1,j+1,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-i,j,is_visible=False),Point(-(i+1),j,is_visible=False),Point(-(i+1),j+1,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(i,-j,is_visible=False),Point(i+1,-j,is_visible=False),Point(i+1,-(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-i,-j,is_visible=False),Point(-(i+1),-j,is_visible=False),Point(-(i+1),-(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
elif r<0.5 :
l=[Point(i,j,is_visible=False),Point(i,j+1,is_visible=False),Point(i+1,j,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-i,j,is_visible=False),Point(-i,j+1,is_visible=False),Point(-(i+1),j,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(i,-j,is_visible=False),Point(i,-(j+1),is_visible=False),Point(i+1,-j,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-i,-j,is_visible=False),Point(-i,-(j+1),is_visible=False),Point(-(i+1),-j,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
elif r<0.75 :
l=[Point(i+1,j,is_visible=False),Point(i+1,j+1,is_visible=False),Point(i,j+1,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-(i+1),j,is_visible=False),Point(-(i+1),j+1,is_visible=False),Point(-i,j+1,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(i+1,-j,is_visible=False),Point(i+1,-(j+1),is_visible=False),Point(i,-(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-(i+1),-j,is_visible=False),Point(-(i+1),-(j+1),is_visible=False),Point(-i,-(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
else:
l=[Point(i,j,is_visible=False),Point(i,j+1,is_visible=False),Point(i+1,j+1,is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-i,j,is_visible=False),Point(-i,j+1,is_visible=False),Point(-(i+1),(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(i,-j,is_visible=False),Point(i,-(j+1),is_visible=False),Point(i+1,-(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
l=[Point(-i,-j,is_visible=False),Point(-i,-(j+1),is_visible=False),Point(-(i+1),-(j+1),is_visible=False)]
s=Polygon(l,color=col,opacity=1,line_thickness=0)
time.sleep(0.001)
motif(10,7)Variante
col=[(i+j)/(2*n)*r**5,(i+j)/(2*n)*r**5,0.5]
Variante:
col=[(i+j)/(2*n)*r**5,(i+j)/(2*n)*r**5,r]