Glide reflection combines translation and reflection. In this symmetry operation, a shape is moved a constant distance and then reflected; that is, the shape is oriented in an opposite direction. Many ornamental borders utilize this combination of symmetry operations.
In dance, glide reflection patterns can often be created by having dancers face in different directions. For example, in a line extending across the stage, the dancers alternate facing downstage or upstage. Or two lines of dancers stand facing each other then and cross through each other’s lines, heading in opposite directions.… Read More