amount(0)
{
}
-
+
bool
Zoom::set_param(const String & param, const ValueBase &value)
{
IMPORT(center);
IMPORT(amount);
-
+
return false;
}
EXPORT_NAME();
EXPORT_VERSION();
-
- return ValueBase();
+
+ return ValueBase();
}
Layer::Vocab
Zoom::get_param_vocab()const
{
Layer::Vocab ret;
-
+
ret.push_back(ParamDesc("amount")
.set_local_name(_("Amount"))
.set_description(_("Amount to zoom in"))
.set_local_name(_("Center"))
.set_description(_("Point to zoom in to"))
);
-
+
return ret;
}
etl::handle<const Zoom> layer;
public:
Zoom_Trans(const Zoom* x):Transform(x->get_guid()),layer(x) { }
-
+
synfig::Vector perform(const synfig::Vector& x)const
{
return (x-layer->center)*exp(layer->amount)+layer->center;
}
-
+
synfig::Vector unperform(const synfig::Vector& x)const
{
return (x-layer->center)/exp(layer->amount)+layer->center;