Editing mmWave.js inside guicomposer not working

I solved it using sockets. I tried to write to a file from mmWave.js but it did not work. After researching Node.js processes and experimenting with them, i discovered that spawned processes can't print to console or write to a file for reasons I don't know or I am unaware of.

My solution was to create  a TCP client in nodejs within processRangeDopplerHeatMap  . Here is the new code:

var processRangeDopplerHeatMap = function (bytevec, byteVecIdx, Params) {
    var elapsed_time = {}; // for profile this code only
    var subFrameNum = Params.currentSubFrameNumber;

    if (subFrameNum != Params.subFrameToPlot) return;

    if (Params.guiMonitor[subFrameNum].rangeDopplerHeatMap == 1) {
        var start_time = new Date().getTime();
        // %Get the whole log magnitude range dopppler matrix
        var numBytes = Params.dataPath[subFrameNum].numDopplerBins * Params.dataPath[subFrameNum].numRangeBins * 2;
        var rangeDoppler = bytevec.slice(byteVecIdx, byteVecIdx + numBytes);
        // rangeDoppler = rangeDoppler(1:2:end) + rangeDoppler(2:2:end)*256;
        rangeDoppler = math.add(
            math.subset(rangeDoppler, math.index(math.range(0, numBytes, 2))),
            math.multiply(math.subset(rangeDoppler, math.index(math.range(1, numBytes, 2))), 256)
        );
        rangeDoppler = MyUtil.reshape(rangeDoppler, Params.dataPath[subFrameNum].numDopplerBins, Params.dataPath[subFrameNum].numRangeBins);
        // rangeDoppler = fftshift(rangeDoppler,1);
		
////////////////////////////////////////////////////////////////////////////////////////////////////

		var net = require('net');

		var client = new net.Socket();
		client.connect(65432, '127.0.0.1', function() {
			client.write(JSON.stringify(rangeDoppler));
		});

////////////////////////////////////////////////////////////////////////////////////////////////////

        rangeDoppler = rangeDoppler.slice((rangeDoppler.length + 1) / 2).concat(rangeDoppler.slice(0, (rangeDoppler.length + 1) / 2));
        var range = math.dotMultiply(math.range(0, Params.dataPath[subFrameNum].numRangeBins - 1, true), Params.dataPath[subFrameNum].rangeIdxToMeters);
        range = math.subtract(range, Params.compRxChanCfg.rangeBias); //correct regardless of state (measurement or compensation)
        math.forEach(range, function (value, idx, ary) {
            ary[idx] = math.max(ary[idx], 0);
        });

        var dopplermps = math.dotMultiply(math.range(-Params.dataPath[subFrameNum].numDopplerBins / 2,
            Params.dataPath[subFrameNum].numDopplerBins / 2 - 1, true),
            Params.dataPath[subFrameNum].dopplerResolutionMps);
            
        templateObj.$.ti_widget_plot3.data[0].x = range.valueOf();
        templateObj.$.ti_widget_plot3.data[0].y = dopplermps.valueOf();
        templateObj.$.ti_widget_plot3.data[0].z = rangeDoppler;
        templateObj.$.ti_widget_plot3.redrawdata();
        
        elapsed_time.rangeDopplerHeatMap = new Date().getTime() - start_time;
    }
    return elapsed_time;
};

And I made a python server that receives the data. Here is an example:

import socket, json

# Server.py
HOST = '127.0.0.1'	# Standard loopback interface address (localhost)
PORT = 65432		# Port to listen on (non-privileged ports are > 1023)

with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
	s.bind((HOST, PORT))
	s.listen()
	conn, addr = s.accept()
	with conn:
		print('Connected by', addr)
		while True:
			data = conn.recv(1024)
			print(data)
			if not data:
				break
			conn.sendall(data)