How to display Size property in form of "number+units" in the custom operator's REDO panel?

Question

If we add some standard mesh (e.g, cube) - the Size property will be displayed as

number + units :

API documentation says that in case of primitive_cube_add the Size property is:

___

Ok, let's make a custom operator, which contains Size FloatProperty

In this case no units mentioned,

just a number :

The question :

How can I display Size property in form of number + units ?

bpy.props.FloatProperty has unit and subtype can input. — X Y, Commented Nov 1 at 0:10
@XY - tried unit: it's EXACTLY what I needed. Huge thanks for help! ❤️ — Yaroslav, Commented Nov 1 at 0:55

Yaroslav · Accepted Answer · 2024-11-27 19:11:26Z

@XY has answered my question in the comments, but for some reason hasn't posted it as a full answer.

So, here is the solution (kudos to XY) :

FloatProperty (as any other property) has multiple parameters: default, min, max, and many others.

One of these parameters is unit.

By default unit has value "NONE", but if we set it to "LENGTH" distance units will be displayed:

Example of code:

size:FloatProperty(
     name='Size',
     unit='LENGTH',
     precision=3,
     default=1,
     min=0)

NOTE: unit can be not only "LENGTH", but also "ROTATION", "VELOCITY" and many others.

Every possible type of unit is described HERE

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