def matriks_rotasi(sumbu, sudut): #0x,1y,2z
mtemp = c.Matriks()
sudut = sudut * math.pi / 180
mtemp.banyak_baris = 3
mtemp.banyak_kolom = 3
for i in range(3):
for j in range(3):
mtemp.elemen[i][j] = 0
n = 0
mtemp.elemen[sumbu][sumbu] = 1
for i in range(2):
for j in range(2):
if (n == 0):
mtemp.elemen[(sumbu + i + 1) % 3][(sumbu + j + 1) %
3] = math.cos(sudut)
if (n == 1):
mtemp.elemen[(sumbu + i + 1) % 3][(sumbu + j + 1) %
3] = -math.sin(sudut)
if (n == 2):
mtemp.elemen[(sumbu + i + 1) % 3][(sumbu + j + 1) %
3] = math.sin(sudut)
if (n == 3):
mtemp.elemen[(sumbu + i + 1) % 3][(sumbu + j + 1) %
3] = math.cos(sudut)
n = n + 1
return mtemp
def matriks_identitas():
mtemp = c.Matriks()
mtemp.elemen[0][0] = 1
mtemp.elemen[1][1] = 1
mtemp.elemen[2][2] = 1
return mtemp
def print_matriks(m1=c.Matriks()):
for i in range(m1.banyak_baris):
for j in range(m1.banyak_kolom):
print(m1.elemen[i][j])
