private void DoZoom(double factor, Point?mousePos = null)
{
if (masterPlot != null)
{
var rect = masterPlot.PlotRect;
ValidateNavigationLimits();
rect = NavigationHelper.DoZoom(factor, mousePos, rect,
NavigationLimitMaxX, NavigationLimitMinX,
NavigationLimitMaxY, NavigationLimitMinY,
IsHorizontalNavigationEnabled, IsVerticalNavigationEnabled,
PreferredAspectRatio, masterPlot.AspectRatio);
if (IsZoomEnable(rect))
{
masterPlot.SetPlotRect(rect);
masterPlot.IsAutoFitEnabled = false;
}
}
}