if key == ' ': fbo.save(on_display, "gl-circles.png")
# -----------------------------------------------------------------------------
if __name__ == '__main__':
from glagg import CircleCollection
glut.glutInit(sys.argv)
glut.glutInitDisplayMode(glut.GLUT_DOUBLE | glut.GLUT_RGB)
glut.glutCreateWindow("OpenGL antialiased circles")
glut.glutReshapeWindow(512, 512 + 32)
glut.glutDisplayFunc(on_display)
glut.glutReshapeFunc(on_reshape)
glut.glutKeyboardFunc(on_keyboard)
collection = CircleCollection()
radius = 255.0
theta, dtheta = 0, 5.5 / 180.0 * np.pi
for i in range(500):
theta += dtheta
x = 256 + radius * np.cos(theta)
y = 256 + 32 + radius * np.sin(theta)
r = 10.1 - i * 0.02
radius -= 0.45
collection.append(center=(x, y), radius=r)
for i in range(0, 39):
linewidth = (i + 1) / 10.0
x = 20 + i * 12.5 - r
y = 16
collection.append(center=(x, y), radius=4, linewidth=linewidth)
circles.append( center = p3, radius = 4, fg_color=(0.0,0.0,1.0,1.0) )
# -----------------------------------------------------------------------------
if __name__ == '__main__':
import sys
import OpenGL.GLUT as glut
from glagg import curve3_bezier, curve4_bezier
from glagg import PathCollection, CircleCollection
glut.glutInit(sys.argv)
glut.glutInitDisplayMode(glut.GLUT_DOUBLE | glut.GLUT_RGB | glut.GLUT_DEPTH)
glut.glutInitWindowSize(800, 800)
glut.glutCreateWindow("Dynamic cubic Bézier curve [drag handles with mouse]")
glut.glutDisplayFunc(on_display)
glut.glutReshapeFunc(on_reshape)
glut.glutKeyboardFunc(on_keyboard)
glut.glutMouseFunc(on_mouse)
glut.glutMotionFunc(on_motion)
glut.glutPassiveMotionFunc(on_passive_motion)
paths = PathCollection()
circles = CircleCollection()
drag,index = False, -1
points = np.array( [ (100.,400.), (400.,700.),
(500.,100.), (700.,400.) ] )
add_bezier(*points)
glut.glutMainLoop()