Sketcher Extend/it

Description
The extend edge tool extends an edge to an arbitrary location in the sketch, or to another edge.

How to use

 * 1) Press the Sketcher Extend.svg Extend edge button.
 * 2) Select a line or an arc.
 * 3) In the 3D view, move the mouse pointer toward the direction to extend.
 * 4) Click on an arbitrary location in space, or
 * 5) To extend to another edge, place the mouse pointer over the edge; when it is highlighted and the Sketcher ConstrainPointOnObject.png point on object constraint icon appears besides the mouse pointer, click to confirm. A point on object constraint will be added.
 * 6) To extend to a point in the sketch, place the mouse pointer over the point; when it is highlighted and the Sketcher ConstrainCoincident.png coincident constraint icon appears besides the mouse pointer, click to confirm. A coincident constraint will be added.

Limitations

 * Only arcs and lines can be extended at this time.