scalerel – Constrained scaling and stretching of objects

The pack­age pro­vides four com­mands for ver­ti­cally scal­ing and stretch­ing ob­jects. Its pri­mary func­tion is the abil­ity to scale/stretch and shift one ob­ject to con­form to the size of a spec­i­fied sec­ond ob­ject. This fea­ture can be use­ful in both equa­tions and schematic di­a­grams.
Ad­di­tion­ally, the scal­ing and stretch­ing com­mands of­fer con­straints on max­i­mum width and/or min­i­mum as­pect ra­tio, which are of­ten used to pre­serve leg­i­bil­ity or for the sake of gen­eral ap­pear­ance.