private void OnPlotPinch(UIPinchGestureRecognizer recognizer)
{
var location = recognizer.LocationInView(Plot);
if (recognizer.State == UIGestureRecognizerState.Began)
{
anchorPoint = location;
}
if (recognizer.State == UIGestureRecognizerState.Ended)
{
Plot.ZoomTo(recognizer.Scale, anchorPoint);
PrimaryYAxis.ZoomTo(recognizer.Scale, anchorPoint.Y);
PrimaryXAxis.ZoomTo(recognizer.Scale, anchorPoint.X);
Grid.ZoomTo(recognizer.Scale, anchorPoint);
anchorPoint = CGPoint.Empty;
}
else
{
Plot.ZoomBy(recognizer.Scale, anchorPoint);
PrimaryYAxis.ZoomBy(recognizer.Scale, anchorPoint.Y);
PrimaryXAxis.ZoomBy(recognizer.Scale, anchorPoint.X);
Grid.ZoomBy(recognizer.Scale, anchorPoint);
}
}
private void OnPlotPan(UIPanGestureRecognizer recognizer)
{
var translation = recognizer.TranslationInView(Plot);
if (recognizer.State == UIGestureRecognizerState.Ended)
{
Plot.PanTo(translation);
PrimaryYAxis.PanTo(translation.Y);
PrimaryXAxis.PanTo(translation.X);
Grid.PanTo(translation);
}
else
{
Plot.PanBy(translation);
PrimaryYAxis.PanBy(translation.Y);
PrimaryXAxis.PanBy(translation.X);
Grid.PanBy(translation);
}
}