UI / Python Websocket

2021-08-05 09:54:31 +02:00
parent 768bc6f5cb
commit d15a0ff9ab
11 changed files with 39171 additions and 6595 deletions
--- a/PointCloudWeb.Scanner/test/index.html
+++ b/PointCloudWeb.Scanner/test/index.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>WebSocket demo</title>
+    </head>
+    <body>
+        <script>
+            var ws = new WebSocket("ws://127.0.0.1:5678/"),
+                messages = document.createElement('ul');
+            ws.onmessage = function (event) {
+                var messages = document.getElementsByTagName('ul')[0],
+                    message = document.createElement('li'),
+                    content = document.createTextNode(event.data);
+                message.appendChild(content);
+                messages.appendChild(message);
+            };
+            document.body.appendChild(messages);
+        </script>
+    </body>
+</html>
--- a/PointCloudWeb.Scanner/test/lida.py
+++ b/PointCloudWeb.Scanner/test/lida.py
@@ -0,0 +1,21 @@
+import PyLidar3
+import time # Time module
+#Serial port to which lidar connected, Get it from device manager windows
+#In linux type in terminal -- ls /dev/tty* 
+#port = input("Enter port name which lidar is connected:") #windows
+#port = "/dev/ttyUSB0" #linux
+f = open("PoinCloudWeb.Scanner\datafile.txt","wt")
+Obj = PyLidar3.YdLidarX4(port='COM6',chunk_size=20000) #PyLidar3.your_version_of_lidar(port,chunk_size) 
+if(Obj.Connect()):
+    print(Obj.GetDeviceInfo())
+    gen = Obj.StartScanning()
+    t = time.time() # start time 
+    data = next(gen)
+    #print(data)
+    for x,y  in data.items():
+        f.write(str(x) + " / " + str(y) + "\n")
+    f.close()
+    Obj.StopScanning()
+    Obj.Disconnect()
+else:
+    print("Error connecting to device")
--- a/PointCloudWeb.Scanner/test/ws.py
+++ b/PointCloudWeb.Scanner/test/ws.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+
+# WS server example that synchronizes state across clients
+
+import asyncio
+import json
+import logging
+import websockets
+
+logging.basicConfig()
+
+STATE = {"value": 0}
+
+USERS = set()
+
+
+def state_event():
+    return json.dumps({"type": "state", **STATE})
+
+
+def users_event():
+    return json.dumps({"type": "users", "count": len(USERS)})
+
+
+async def notify_state():
+    if USERS:  # asyncio.wait doesn't accept an empty list
+        message = state_event()
+        await asyncio.wait([user.send(message) for user in USERS])
+
+
+async def notify_users():
+    if USERS:  # asyncio.wait doesn't accept an empty list
+        message = users_event()
+        await asyncio.wait([user.send(message) for user in USERS])
+
+
+async def register(websocket):
+    USERS.add(websocket)
+    await notify_users()
+
+
+async def unregister(websocket):
+    USERS.remove(websocket)
+    await notify_users()
+
+
+async def counter(websocket, path):
+    # register(websocket) sends user_event() to websocket
+    await register(websocket)
+    try:
+        await websocket.send(state_event())
+        async for message in websocket:
+            data = json.loads(message)
+            if data["action"] == "minus":
+                STATE["value"] -= 1
+                await notify_state()
+            elif data["action"] == "plus":
+                STATE["value"] += 1
+                await notify_state()
+            else:
+                logging.error("unsupported event: %s", data)
+    finally:
+        await unregister(websocket)
+
+
+start_server = websockets.serve(counter, "localhost", 6789)
+
+asyncio.get_event_loop().run_until_complete(start_server)
+asyncio.get_event_loop().run_forever()