Dragging Objects

Drag objects in your sketch for several purposes: to reposition the objects, to resize them, to change the shape of a construction, and to investigate the geometry embedded in the sketch, thereby discovering and revealing mathematical relationships between them. To drag an object, position the tip of the Arrow tool over the object, then press and drag. (The Arrow flips horizontal when it's pointing at an object.)

· If the object was not selected, only that object drags. (Any other selected objects deselect.)

· If the object was already selected, it and all other selected objects drag to follow your mouse.

Sketchpad uses the terms parent and child to describe geometric relationships. A segment is the child of its endpoints; the endpoints are the parents of the segment.

When you drag an object, other related objects stretch and shrink to maintain their relationship to the dragged object. For instance, if you drag one endpoint of a segment, the segment stretches because the segment depends upon the location of both of its endpoints. Similarly, if you drag the segment itself, both endpoints move with it because the segment depends upon these endpoints and cannot move separately from them.

Subtopics:
Transformations and Dragging
Translate Arrow Tool
Rotate Arrow Tool
Dilate Arrow Tool
How To Zoom In and Out on a Sketch