Ansa secondary development - external programs use socket to communicate with ansa

The implementation steps are as follows ：

1. stay ANSA Script Edit Running server code in ：

#  Server code socket_server.py
 
import socket
import os
import sys
 
def work():
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.bind(('localhost',1000))
    sock.listen(1)
    while True:
        try:
            conn, addr = sock.accept()
            ret = conn.recv(2048)
            # result = os.popen(ret).read()
            # popen(ret) Wrong command 
            result = exec(ret)
            conn.send("success".encode())
        except KeyboardInterrupt:
            print('Now we will exit')
            sys.exit(0)
    sock.close()

if __name__ == '__main__':
    work()

 Click on 【 function 】 Button ：

After operation ANSA The main program is locked ：

2. Client code client.py

#  Client code client.py
import socket
 
def socket_send(command):
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.connect(('localhost', 1000))
    sock.send(command)
    result = sock.recv(2048)
    sock.close()
    return result
 
cmd = '''from ansa import base from ansa import constants fields = {'X1': 3.5, 'X2': 10.8, 'X3': 246.7} new_grid = base.CreateEntity(constants.NASTRAN, 'GRID', fields) print('The id of the new grid:', new_grid._id) '''
print(socket_send(cmd.encode()))

3. open Python IDLE（ need python3 The compiler ）, as follows File —>Open open client.py
   
   function Run：Run Module or F5 function
   

4. see ANSA Operation in ： You can see that the node has been created ( Only the main process is closed socket after ANSA To operate , Created Grid Only then )
   

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There are problems ：

 At present only in ANSA Run in the main thread socket, But running socket after ANSA The main thread is locked , Lead to ANSA Can't operate ; Only the main process is closed socket after ANSA To operate , Created ANSA Object appears .