SetPointOfEndLine method example

Here is an example of "Open line"indicator. It uses SetPointOfEndLine method

public class OpenLine : Indicator
    {
        private bool _customSessionStart;
        private TimeSpan _startDate = new TimeSpan(9, 0, 0);
        private ValueDataSeries _line;
        private string _openCandleText = "Open Line";
        private int _fontSize = 10;
        private decimal _openValue = decimal.Zero;

        [Category("Session time")]
        [DisplayName("Custom session start")]
        [PropertyOrder(10)]
        public bool CustomSessionStart
        {
            get => _customSessionStart;
            set
            {
                _customSessionStart = value;
                RecalculateValues();
            }
        }

        [Category("Session time")]
        [DisplayName("Start time(GMT)")]
        [PropertyOrder(20)]
        public TimeSpan StartDate
        {
            get => _startDate;
            set
            {
                _startDate = value;
                RecalculateValues();
            }
        }

        [Category("Text settings")]
        [DisplayName("Text")]
        public string OpenCandleText
        {
            get => _openCandleText;
            set
            {
                _openCandleText = value;
                RecalculateValues();
            }
        }

        [Category("Text settings")]
        [DisplayName("Text size")]
        public int FontSize
        {
            get => _fontSize;
            set
            {
                _fontSize = value;
                RecalculateValues();
            }
        }

        private int _offset;

        [Category("Text settings")]
        [DisplayName("Y offset")]
        public int Offset
        {
            get => _offset;
            set { _offset = value; RecalculateValues(); }
        }


        public OpenLine():base(true)
        {
            _line = (ValueDataSeries)(DataSeries[0]);
            _line.VisualType=VisualMode.Square;
            _line.Color = Colors.SkyBlue;
            _line.Width = 2;
            DenyToChangePanel = true;
        }

        protected override void OnCalculate(int bar, decimal value)
        {
            if (bar == 0)
            {
                _openValue = decimal.Zero;
                return;
            }

            var candle = GetCandle(bar);
            bool isStart = _customSessionStart ? (candle.Time.TimeOfDay >= _startDate && GetCandle(bar - 1).Time.TimeOfDay < _startDate) : IsNewSession(bar);
            
            if (isStart)
            {
                _openValue = candle.Open;
                _line.SetPointOfEndLine(bar-1);
            }

            if (_openValue != decimal.Zero)
            {
                _line[bar] = _openValue;
                var penColor = System.Drawing.Color.FromArgb(_line.Color.A,_line.Color.R,_line.Color.G,_line.Color.B);

                AddText("Open Line", _openCandleText, true, CurrentBar, _openValue, -_offset, 0, penColor
                        , System.Drawing.Color.Transparent, System.Drawing.Color.Transparent, _fontSize,
                        DrawingText.TextAlign.Left);
            }
        }
    }

Thanks Vladimir!