- PyOpenGL
Source Code :
# Kelompok 4 Grafika Komputer MM-3
# Nama Anggota:
# 1 Faisal Amru
# 2 Nur Khanifah
# 3 M. Ivan Aprilian
# 4 Rizqi Maulana Bahtiar
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
def init():
glClearColor(0.0, 0.0, 0.0, 0.0)
gluOrtho2D(-50.0, 50.0, -50.0, 50.0)
glPointSize(5)
def plot(x, y):
glBegin(GL_POINTS)
glVertex2f(x, y)
glEnd()
def bresenham_drawing_circle(r):
# contoh soal jika nilai center circle (3,3) dan r = 9
x_center = 3
y_center = 3
r = 9
x = 0
y = r
# parameter keputusan bresenham
d = 3 - 2 * r
# membuat titik pada koordinat yang ditentukan
plot(x + x_center, y + y_center)
while y > x:
if d < 0:
x += 1
d += 4 * x + 6
else:
x += 1
y -= 1
d += (4 * (x - y)) + 10
# Jika x <= y sudah terpenuhi, maka perulangan di hentikan.
# jika nilai (x,y)sudah didapatkan, lalu membalikan nilai (y, x)
# Untuk pixel (x, y)
# Quadrant 1
plot(x + x_center, y + y_center)
# Quadrant 2
plot(x + x_center, -y + y_center)
# Quadrant 3
plot(-x + x_center, -y + y_center)
# Quadrant 4
plot(-x + x_center, y + y_center)
# Untuk pixel (y, x)
# Quadrant 1
plot(y + x_center, x + y_center)
# Quadrant 2
plot(-y + x_center, x + y_center)
# Quadrant 3
plot(-y + x_center, -x + y_center)
# Quadrant 4
plot(y + x_center, -x + y_center)
def plotpoints():
glClear(GL_COLOR_BUFFER_BIT)
glColor3f(1.0, 0.0, 1.0)
glBegin(GL_LINES)
glVertex2f(-50, 0)
glVertex2f(50, 0)
glVertex2f(0, -50)
glVertex2f(0, 50)
glEnd()
bresenham_drawing_circle(40)
glFlush()
def main():
glutInit(sys.argv)
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB)
glutInitWindowSize(500, 500)
glutInitWindowPosition(100, 100)
glutCreateWindow("Bresenham Cricle TUGAS 4 Kel 4 MM3")
glutDisplayFunc(plotpoints)
init()
glutMainLoop()
main()
Output :
