ZBrushCentral

get curretn object size on canvas and transform it to fit canvas

Hi ! I am new to ZBrush and zscript .
How to transform the current object on canvas to fit the canvas ?
Should it be transform in 3d mode or 2.5D mode ?

I think I can resize the width and height of the document , so that the document width and height is known. But how do I get the width and height of the current object on canvas , so that I can calculate a scale and position .

Thanks in advance!