Intersect edits involving lines should not provide option to split lines #14
Description
The Intersect -> Direction-Line and Line-Line edits provide the ability to
split (subdivide) the lines involved. This is problematic in terms of editing
updates. If the user is allowed to alter the lines involved (which is a
reasonable expectation), AND line splits are also allowed, it is possible to
break subsequent edits (subsequent edits may need to refer to the sections
resulting from the split).
While this could be covered (possibly by leaving behind the original split
point), it is somewhat messy. A less confusing approach would involve removing
the split option from the Intersect edits, moving that option into a brand new
edit (Line - Subdivide at Intersection). This would make it possible to provide
an update capability for line intersect edits.
It does not eliminate problems with split sections that later have to be moved
to entirely different lines. However, the new edit could be built to
accommodate a collection of historic intersections (necessary only if the
original sections were referenced by subsequent edits, and the user is unable
to respecify an alternate line).
Original issue reported on code.google.com by ola.stan...@gmail.com on 11 Oct 2010 at 1:08