public void ToScreenCoords(double a, double b, out double x, out double y)
{
if (chain != null && chain.Count > 0)
{
double c = a, d = b;
foreach (var transformer in chain)
{
transformer.ToScreenCoords(c, d, out x, out y);
c = x; d = y;
}
x = c; y = d;
}
else
{
EmptyTransformer.ToScreenCoords(a, b, out x, out y);
}
}
public void ToModelCoords(double x, double y, out double a, out double b)
{
if (chain != null && chain.Count > 0)
{
double c = x, d = y;
foreach (var transformer in chain)
{
transformer.ToModelCoords(c, d, out a, out b);
c = a; d = b;
}
a = c; b = d;
}
else
{
EmptyTransformer.ToModelCoords(x, y, out a, out b);
}
}
