selectElementAtReticle method

Selects an element at the current position of the reticle.

If called when the reticle is not over a vertex or mid-vertex this will return false even if a GeometryEditor.selectedElement already exists. Selection will not be cleared. If called when a GeometryEditor.pickedUpElement exists this will return false and the selection will not be changed. If called when the reticle is over a geometry segment or fill, this will return false and not select anything and existing selections will not be cleared.

Return Value: True if there is a vertex or mid-vertex under the reticle, which is now selected, false otherwise.