Ejemplo n.º 1
0
        private static void UpdateChartHorizontalPanOffsetAndZoom(RadChartBase chart)
        {
            if (ChartViewUtilities.GetIsHorizontalRangeEnabled(chart) && !suspendedCharts.Contains(chart))
            {
                suspendedCharts.Add(chart);

                if (chart.PlotAreaClip.Width > 0)
                {
                    double horizontalStart = ChartViewUtilities.GetHorizontalStart(chart);
                    double horizontalEnd   = ChartViewUtilities.GetHorizontalEnd(chart);
                    double horizontalRange = horizontalEnd - horizontalStart;

                    if (horizontalRange > 0 && horizontalRange <= 1)
                    {
                        double newZoomX     = 1 / horizontalRange;
                        double virtualWidth = newZoomX * chart.PlotAreaClip.Width;
                        double panOffsetX   = -horizontalStart * virtualWidth;

                        chart.Zoom      = new Size(newZoomX, chart.Zoom.Height);
                        chart.PanOffset = new Point(panOffsetX, chart.PanOffset.Y);
                    }
                }

                suspendedCharts.Remove(chart);
            }
        }
Ejemplo n.º 2
0
        private static void UpdateHorizontalRangeValues(RadChartBase chart)
        {
            if (ChartViewUtilities.GetIsHorizontalRangeEnabled(chart) && !suspendedCharts.Contains(chart))
            {
                suspendedCharts.Add(chart);

                var virtualWidth = chart.PlotAreaClip.Width * chart.Zoom.Width;
                if (virtualWidth > 0)
                {
                    double oldHorizontalStart = ChartViewUtilities.GetHorizontalStart(chart);
                    double oldHorizontalEnd   = ChartViewUtilities.GetHorizontalEnd(chart);

                    double newHorizontalStart = (-chart.PanOffset.X) / virtualWidth;
                    double newHorizontalEnd   = ((-chart.PanOffset.X) + chart.PlotAreaClip.Width) / virtualWidth;

                    ChartViewUtilities.SetHorizontalStart(chart, newHorizontalStart);
                    ChartViewUtilities.SetHorizontalEnd(chart, newHorizontalEnd);
                }

                suspendedCharts.Remove(chart);
            }
        }