To add a line to a graph:
-
Click the line icon
in the Graph toolbar, or select
InsertLine from the main menu.
-
Position your cursor
at a starting position in the graph.
-
Click and drag to create
the line in the graph.
You can control the
line as follows:
-
If you press the CTRL key and then
click and drag, the line is created from the center and moves outward.
-
If you press SHIFT and then click
and drag, then the line's orientation stays in multiples of 15 degrees.
You can create a perfect horizontal or vertical line this way. You
can also rotate the line in 15 degree increments to create a diagonal
line.
-
If you press CTRL+SHIFT and then
click and drag, the line is created from the center, moves outward,
and can be rotated in 15 degree increments.