Exemplo n.º 1
0
        public static void drawStepResponse(FunctionDelegate W, object chart, object table, int time)
        {
            var plot     = chart as System.Windows.Forms.DataVisualization.Charting.Chart;
            var dataView = table as System.Windows.Forms.DataGridView;

            plot.ChartAreas[0].AxisY.Minimum = Double.NaN;
            plot.ChartAreas[0].AxisY.Maximum = Double.NaN;
            foreach (var series in plot.Series)
            {
                series.Points.Clear();
                series.MarkerStyle = System.Windows.Forms.DataVisualization.Charting.MarkerStyle.None;
                series.BorderWidth = 3;
            }
            plot.ChartAreas[0].AxisX.Title   = "t, сек.";
            plot.ChartAreas[0].AxisY.Title   = "h(t)";
            plot.ChartAreas[0].AxisX.Minimum = 0;
            dataView.Rows.Clear();
            int _time = (int)time;

            for (double i = 0.00001; i < _time; i += 0.1)
            {
                double invCalc = Laplace.InverseTransform(W, i);
                plot.Series[0].Points.AddXY(i, invCalc);
                if (i.ToString("N2") == Math.Truncate(i).ToString("N2"))
                {
                    dataView.Rows.Add(i.ToString("N2"), invCalc.ToString("N4"));
                }
            }
        }
Exemplo n.º 2
0
        public static void drawStepResponse(FunctionDelegate W, object chart, object table)
        {
            var plot     = chart as System.Windows.Forms.DataVisualization.Charting.Chart;
            var dataView = table as System.Windows.Forms.DataGridView;

            plot.ChartAreas[0].AxisY.Minimum = Double.NaN;
            plot.ChartAreas[0].AxisY.Maximum = Double.NaN;
            foreach (var series in plot.Series)
            {
                series.Points.Clear();
                series.MarkerStyle = System.Windows.Forms.DataVisualization.Charting.MarkerStyle.None;
                series.BorderWidth = 3;
            }
            plot.ChartAreas[0].AxisX.Title   = "t, сек.";
            plot.ChartAreas[0].AxisX.Minimum = 0;
            plot.ChartAreas[0].AxisY.Title   = "h(t)";
            int    steps       = 0;
            double time        = 0.00001;
            double invCalc     = -1.0;
            double prevInvCalc = 0;

            dataView.Rows.Clear();
            do
            {
                prevInvCalc = invCalc;
                invCalc     = Laplace.InverseTransform(W, time);
                plot.Series[0].Points.AddXY(time - 0.1, invCalc);
                if (time.ToString("N2") == Math.Truncate(time).ToString("N2"))
                {
                    dataView.Rows.Add(time.ToString("N2"), invCalc.ToString("N4"));
                }
                if (Math.Abs(prevInvCalc - invCalc) <= 0.000001)
                {
                    steps++;
                }
                else
                {
                    time += 0.1;
                }
            } while (steps <= time * 1.15);
        }