You can change the size of objects by stretching them. When you stretch objects, you must select the objects using either a crossing window or a crossing polygon. You then specify a displacement distance or select a base point and a displacement point. Objects that cross the window or polygon boundary are stretched; those completely within the crossing window or crossing polygon are simply moved.
STRETCH stretches arcs, elliptical arcs, lines, polyline segments, 2D solids, rays, traces, and splines that cross the selection window.
STRETCH moves only endpoints within the selection window, leaving those outside unchanged. The polyline is treated as the composition of line straight and arc when being stretched. STRETCH does not affect 3D solids, polyline width, tangent or curve-fitting information.
When stretching objects, you have to specify a base point and displacement point. You should use crossing selection to select the desired objects. With using grip edition, you can also stretch objects.
To stretch an object
Choose Modify > Stretch.
Select the objects using either a crossing window or a crossing polygon, and then press Enter.
Specify the base point.
Specify the second point of displacement.
Command line STRETCH
To stretch objects, select them using a crossing window (A) or crossing polygon, and then specify the base point (B) and displacement point (C)
To stretch an object using grips, you select it to display its grips and then select a grip to make it the active grip. This becomes the base point. Then you move the active grip to a new location. The grip you select depends on the type of object you're modifying. For example, to stretch one corner of a rectangle, select the corner point grip.
To stretch a line, select an endpoint grip. Not all objects can be stretched using grips.
To stretch an object using grips
Select the object.
Click a grip to activate it.
Drag the grip.
Click to release.
To stretch an object using grips, select the object (A), select a grip (B), and drag the grip to its new location (C)
LENGTHEN: Changes the length of objects and the included angle of arcs
PEDIT: Edits polylines and three-dimensional polygon meshes
PROPERTIES: Controls properties of existing objects
SCALE: Enlarges or reduces selected objects proportionally in the X, Y, and Z directions
SPLINEDIT: Edits a spline or spline-fit polyline
STRETCH: Moves or stretches objects
System Variables Reference