setPlotValue() {
        return;
        const time = plotArea.stopWatch.ElapsedMilliseconds;
        if (
            this.plotValues.length &&
            this.plotValues[this.plotValues.length - 1][0] === time
        ) {
            this.plotValues.pop();
        }

        if (this.plotValues.length === 0) {
            this.plotValues.push([time, this.inp1.value]);
            return;
        }

        if (
            this.plotValues[this.plotValues.length - 1][1] === this.inp1.value
        ) {
            return;
        }
        this.plotValues.push([time, this.inp1.value]);
    }
@memberof Tunnel
function to set plot value