void axis_BoundsChanged(DoubleAxisBase axis)
{
// HACK: Das hier kann wegfallen, wenn das Event abgehängt ist
if (!_doubleAxes.OfType<DoubleAxisBase>().Contains(axis))
return;
if (!_handleEvents)
return;
if (IsRelative)
ScaleRelative(axis, ProxyAxis);
else
ProxyAxis.SetBounds(axis.ActualLowerBound, axis.ActualUpperBound);
}
private void SyncScale(DoubleAxisBase destination)
{
if (IsRelative)
ScaleRelative(ProxyAxis, destination);
else
destination.SetBounds(ProxyAxis.ActualLowerBound, ProxyAxis.ActualUpperBound);
}
private static void ScaleRelative(DoubleAxisBase source, DoubleAxisBase destination)
{
var normFactor = source.UpperBound - source.LowerBound;
var ls0 = source.LowerBound / normFactor;
var us0 = source.UpperBound / normFactor;
var ls1 = source.ActualLowerBound / normFactor;
var us1 = source.ActualUpperBound / normFactor;
// Das hier sind jetzt relative Differenzen, da wir oben normiert haben
var dls = ls1 - ls0; // Bedeutet: "x % von der Länge des Ursprungs-Vektors
var dus = us1 - us0;
// Destination:
var destinationLength = destination.UpperBound - destination.LowerBound;
var newLower = destination.LowerBound + dls * destinationLength;
var newUpper = destination.UpperBound + dus * destinationLength;
destination.SetBounds(newLower, newUpper);
}