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igl/python/tcpviewer.py
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Python

# This file is part of libigl, a simple c++ geometry processing library.
#
# Copyright (C) 2017 Sebastian Koch <s.koch@tu-berlin.de> and Daniele Panozzo <daniele.panozzo@gmail.com>
#
# This Source Code Form is subject to the terms of the Mozilla Public License
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at http://mozilla.org/MPL/2.0/.
import socket
import threading
import pyigl as igl
import array
import time
HOST = 'localhost' # Symbolic name meaning all available interfaces
PORT = 50008 # Arbitrary non-privileged port
def worker(viewer,lock,s):
print("TCP iglviewer server listening on port " + str(PORT))
try:
while True:
conn, addr = s.accept()
lock.acquire()
slist = []
while True:
buf = conn.recv(4096)
if not buf:
break
slist.append(buf.decode('unicode_internal','ignore'))
conn.close()
data = ''.join(slist)
temp = list(data)
isempty = viewer.data().V.rows() == 0
viewer.data().deserialize(temp)
if isempty and viewer.data().V.rows() != 0:
viewer.core.align_camera_center(viewer.data().V,viewer.data().F)
lock.release()
except:
s.close()
return
class TCPViewer(igl.glfw.Viewer):
def launch(self):
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
ser = self.data().serialize()
a = array.array('u', ser)
s.sendall(a)
s.close()
except:
print("Failed to open socket, is tcpviewer running?")
if __name__ == "__main__": # The main script is a server
## Try to open the socket first
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.bind((HOST, PORT))
except:
print("Failed to bind, port already used.")
exit(1)
s.listen(1)
viewer = igl.glfw.Viewer()
lock = threading.Lock()
t = threading.Thread(target=worker, args=(viewer,lock,s,))
t.setDaemon(True)
t.start()
viewer.core.is_animating = True
# viewer.data().dirty = int(0x03FF)
viewer.launch_init(True,False)
done = False
while not done:
lock.acquire()
done = not viewer.launch_rendering(False)
lock.release()
time.sleep(0.000001) # DO NOT REMOVE ME
viewer.launch_shut()