private void DoZoom(double factor)
{
if (masterPlot != null)
{
var rect = masterPlot.PlotRect;
if (IsHorizontalNavigationEnabled)
{
rect.X = rect.X.Zoom(factor);
}
if (IsVerticalNavigationEnabled)
{
rect.Y = rect.Y.Zoom(factor);
}
if (IsZoomEnable(rect))
{
masterPlot.SetPlotRect(rect);
masterPlot.IsAutoFitEnabled = false;
}
}
}
private void KeyboardNavigationKeyDown(object sender, KeyEventArgs e)
{
if (masterPlot != null)
{
if (e.Key == Key.Up && IsVerticalNavigationEnabled)
{
var rect = masterPlot.PlotRect;
double dy = rect.Height / 200;
masterPlot.SetPlotRect(new DataRect(
rect.XMin,
rect.YMin - dy,
rect.XMin + rect.Width,
rect.YMin - dy + rect.Height));
masterPlot.IsAutoFitEnabled = false;
e.Handled = true;
}
if (e.Key == Key.Down && IsVerticalNavigationEnabled)
{
var rect = masterPlot.PlotRect;
double dy = -rect.Height / 200;
masterPlot.SetPlotRect(new DataRect(
rect.XMin,
rect.YMin - dy,
rect.XMin + rect.Width,
rect.YMin - dy + rect.Height));
masterPlot.IsAutoFitEnabled = false;
e.Handled = true;
}
if (e.Key == Key.Right && IsHorizontalNavigationEnabled)
{
var rect = masterPlot.PlotRect;
double dx = -rect.Width / 200;
masterPlot.SetPlotRect(new DataRect(
rect.XMin + dx,
rect.YMin,
rect.XMin + dx + rect.Width,
rect.YMin + rect.Height));
masterPlot.IsAutoFitEnabled = false;
e.Handled = true;
}
if (e.Key == Key.Left && IsHorizontalNavigationEnabled)
{
var rect = masterPlot.PlotRect;
double dx = rect.Width / 200;
masterPlot.SetPlotRect(new DataRect(
rect.XMin + dx,
rect.YMin,
rect.XMin + dx + rect.Width,
rect.YMin + rect.Height));
masterPlot.IsAutoFitEnabled = false;
e.Handled = true;
}
if (e.Key == Key.Subtract)
{
DoZoom(1.2);
masterPlot.IsAutoFitEnabled = false;
e.Handled = true;
}
if (e.Key == Key.Add)
{
DoZoom(1 / 1.2);
masterPlot.IsAutoFitEnabled = false;
e.Handled = true;
}
if (e.Key == Key.Home)
{
masterPlot.IsAutoFitEnabled = true;
e.Handled = true;
}
}
}