This command will scale selected entities using a specified
scale factor and base point. This 2D Scale method differs from the
3D Scale method in that it only scales the entities in the x,y
coordinates and does not change the elevations of the entities. A
case for using 2D Scale is when the x,y coordinates are in
architectural units of inches and the elevation is in feet and you
want to convert the x,y coordinates to feet. When the entities are
at zero elevation, then 2D Scale makes no difference and it is
better to use 3D Scale because it is faster.
In the dialog shown here, you have the ability to determine what is scaled: the entire drawing or a selection set. If you choose Select Objects, you will be prompted to select the entities to scale after clicking the OK button. The Base Point acts as the center of the scaling operation and remains stationary. The base point you specify identifies the point that remains in the same location as the selected objects change size.
There are two methods for scaling entities: by Units
Conversion or by a Customized Scale Factor. The dialog above shows
one application of this routine, converting a drawing from
architectural (Inches) to decimal units (US Feet) when the
architectural units have the drawing x,y coordinates in inches and
the elevations in feet. In this case, 2D Scale can be used to apply
a 1/12 scale factor (0.08333333) to convert the inches to feet for
the x,y coordinates and leave the elevations unchanged.
If the scale you want to apply is not a standard
conversion, a manual scale can be entered by checking on the Use
Customized Scale Factor checkbox. A scale factor greater than
1 enlarges the object. A scale factor between 0 and 1 shrinks the
object.
Pulldown Menu Location: Edit > Scale
Keyboard Command: scscale
Prerequisite: None