T-FLEX Parametric CAD. Fundamentals. 2D Design

Fundamentals. Two-Dimensional Design
262
1. No nodes neither construction lines are selected
The option highlights (selects) the nearest
straight construction line. Highlighting the
construction line in this case means the start node of
the graphic line being created will be constrained to
this line. A node will begin rubberbanding,
constrained to sliding along the selected line. This
indicates that a node can be selected only at an
intersection of this line and some other construction
entity.
2. The start node alone is selected
The option highlights a straight construction
line. The start node stays highlighted, and a new line
begins rubberbanding, constrained to stretching
along the selected line. This indicates that the end
node of the new graphic line can be selected only at
an intersection of the highlighted line and some other
construction entity.
3. A single construction entity is selected
The option selects the node at the intersection
of the already highlighted construction entity and the
newly appointed construction line. The selected node
becomes the start node for the graphic line being
created. The new line begins rubberbanding,
constrained to the selected construction entity. If the
two selected construction lines do not intersects, no
action occurs.
4. The start node and a construction entity are selected
The option selects the node at the intersection
of the already highlighted construction entity and the
newly appointed construction line. A graphic entity
is created from the start node to the newly selected
node, which may be a straight line segment or an arc
of a circle, depending on the selected (underlying)
construction entity. The newly created node and the
last selected construction entity stay highlighted, and
new line rubberbanding begins along the latter
entity.
If the two selected construction lines do not intersect, no action occurs.
The option is insensitive to the “free” versus “constrained” drawing mode. In either case, its use implies
selection of a construction circle entity as the underlying entity for creation of a graphic entity – circle or arc.
The option acts as follows in the described situations: