How is Scale calculated?

[BobSynfig]

Also, have a look here:

Using the scale layer

Hi, from the Wiki https://wiki.synfig.org/Scale_Layer A “Scale Layer” scales the size of any primitive layers (regions, gradients, etc.) below it. “Scale Layer” is part of Transform Layers category. Parameters of Scale Layers The parameters of the Scale Layers are: Name Value Type [Type real icon.png] Amount 1.000000 real [Type vector icon.png] Origin 0.000000u,0.000000u vector The Amount parameter may take the inverse of the exponential function (the natural log), as a r…