// polygons

        //GMapPolygon polygon;

        // etc

        readonly Random rnd = new Random();

        readonly DescendingComparer ComparerIpStatus = new DescendingComparer();

        GMapMarkerRect CurentRectMarker = null;

        string mobileGpsLog = string.Empty;

        bool isMouseDown = false;

        PointLatLng start;

        PointLatLng end;

        public MainForm()

        {

            InitializeComponent();

            if (!DesignMode)

            {

                // add your custom map db provider

                //GMap.NET.CacheProviders.MySQLPureImageCache ch = new GMap.NET.CacheProviders.MySQLPureImageCache();

                //ch.ConnectionString = @"server=sql2008;User Id=trolis;Persist Security Info=True;database=gmapnetcache;password=trolis;";

                //MainMap.Manager.SecondaryCache = ch;

                // set your proxy here if need

                //GMapProvider.WebProxy = new WebProxy("10.2.0.100", 8080);

                //GMapProvider.WebProxy.Credentials = new NetworkCredential("ogrenci@bilgeadam.com", "bilgeada");

            //put chart displays in a ready state

            ResetChartColors();

        }

        string latitude;

        string longitude;

        //handle line of input data and put into chart

        //parses transmissions and saves data to CSV file

        public void ParseIncomingData(string rawDataReceived)

        {

            //check to see if data should be processed

            {

                return;

            }

            /* sample stansmission

            KD8TDF-9>APRS,WIDE2-1:/151916z3944.87N/08348.75WO005/0.013 SV:09 A-30.5 B45.64 C99542

                                          ^char 31 ^char 40            ^60

            */

            //TODO: verify index charcter accuracy with real transmission

            int indexStart = rawDataReceived.IndexOf("z");

            int indexEnd = rawDataReceived.IndexOf("N/");

            latitude = rawDataReceived.Substring(indexStart + 1, indexEnd - indexStart - 1);

            indexStart = rawDataReceived.IndexOf("N/");

            indexEnd = rawDataReceived.IndexOf("WO");

            longitude = rawDataReceived.Substring(indexStart + 2, indexEnd - indexStart - 2);

            {

                addMarkerFromTransmit(latitude, longitude);

            }

            AddText(rawDataReceived + "\r\n");

            //place each datum in its own variable

            string[] dataTransmission;

            dataTransmission = rawDataReceived.Split(' ');

            //parse out the data type - should be a single letter

            string typeCode;

            double data;

            string csvData = "";

            //loop through all datums in the transmission and send them to the chart builder

            for (int i = 1; i < dataTransmission.Length; i++)

            {

                typeCode = dataTransmission[i].Substring(0, 1);

                data = double.Parse(dataTransmission[i].Substring(1));

                csvData += typeCode + data + ",";

            }

            //write the data to CSV file

            WriteToCSV(csvData);

        }

        //write the data to CSV file

        private void WriteToCSV(string data)

        {

            {

                writer.WriteLine(data);

            }

        }

        //method to insert parsed data into the charts

        //TODO: add inserts for all charts. altitude is finished and is a template

        private void addToChart(string dataType, double data)

        {

            ///data types organized by listing in google doc

            //MASTER MODULE DATA VALUES

            if (dataType.Equals("t"))  //board temperature

            {

        float conv_coords(float in_coords)

        {

            //Initialize the location.

            float f = in_coords;

            // Get the first two digits by turning f into an integer, then doing an integer divide by 100;

            // firsttowdigits should be 77 at this point.

            int firsttwodigits = ((int)f) / 100;                               //This assumes that f < 10000.

            float nexttwodigits = f - (float)(firsttwodigits * 100);

            float theFinalAnswer = (float)(firsttwodigits + nexttwodigits / 60.0);

            return theFinalAnswer;

        }

        public decimal DmsToDD(double d, double m = 0, double s = 0)

        {

            return Convert.ToDecimal((d + (m / 60) + (s / 3600)) * (d < 0 ? -1 : 1));

        }

        #endregion

        #region cross theading

        //these are for function calls across threads

        delegate void SetTextDelegate(string value);

        public void AddText(string value)