class DiagramTest(threading.Thread):
'''
Generate a mono and mult thread test for Voronoi Diagram Previewer
'''
STARTING = 1
RUNNING = 2
STOPPING = 3
num_threads = 0
lock = threading.Lock()
_big_delay = 0.25
def __init__(self, sites, delay):
with DiagramTest.lock:
self.id = DiagramTest.num_threads
DiagramTest.num_threads += 1
self.diagram = Delaunay(test = True)
self.site_set = SiteSet(sites)
self.delay = delay
self.big_delay = DiagramTest._big_delay \
if delay < DiagramTest._big_delay \
else delay
self.state = DiagramTest.STARTING
threading.Thread.__init__(self)
self.counter = 0
def start(self):
threading.Thread.start(self)
def stop(self):
self.state = DiagramTest.STOPPING
def must_exit(self):
self.counter += 1
threading.Event().wait(self.delay)
return self.state != DiagramTest.RUNNING or self.diagram.has_error()
def must_exit_delay(self, delay):
self.counter += 1
threading.Event().wait(delay)
return self.state != DiagramTest.RUNNING or self.diagram.has_error()
def run(self):
self.state = DiagramTest.RUNNING
while True:
if self.must_exit(): break
while self.site_set.can_pick():
self.diagram.include(self.site_set.pick())
if self.must_exit(): break
while self.site_set.has_picked():
self.diagram.remove(self.site_set.unpick())
if self.must_exit(): break
if self.must_exit(): break
# keep running until receive a stop sign
while self.state == DiagramTest.RUNNING:
pass
d.add(Point2D(100, 100))
for site in sites:
d.add(site)
# test site deletion:
preview = Preview(d)
preview.interactive(True)
preview.set_title("Simulation of remove(site)")
preview.draw_voronoi()
preview.draw_triangulation()
preview.draw_circumcircles()
preview.show()
preview.clear()
preview.process_events()
time.sleep(5)
deleted = []
while (preview.is_running()) and (len(sites) > 0):
i = random.randint(0, len(sites) - 1)
if i in deleted:
continue
deleted.append(i)
preview.draw_voronoi()
preview.draw_voronoi_cell(sites[i])
preview.show()
preview.clear()
preview.process_events()
time.sleep(1)
d.remove(sites[i])
