Gann Angles are drawn between a significant
bottom and top (or vice versa) at various angles. Gann identified nine significant angles,
with the 1 x 1 being the most important:
1 x 8  82.5 degrees
1 x 4  75 degrees
1 x 3  71.25 degrees
1 x 2  63.75 degrees
1 x 1  45 degrees
2 x 1  26.25 degrees
3 x 1  18.75 degrees
4 x 1  15 degrees
8 x 1  7 degrees
Note that in order for the rise/run
values (e.g., 1 x 1, 1 x 8, etc) to match the actual angles (in degrees), the x and
yaxes must have equally spaced intervals. This means that one unit on the xaxis (i.e.,
hour, day, week, month, etc) must be the same distance as one unit on the yaxis. The
easiest way to calibrate the chart is make sure that a 1 x 1 angle produces a 45 degree
angle.
A sample Gann Fan is depicted in the
following figure:
Because this is an interactive drawing
feature, the user normally create the Gann fan by selecting the first extreme point and
then dragging the mouse to the other extreme point. When the mouse is released, Chart FX
FE will make all the necessary calculations and draw the Fan. Please note. it is not
necessary that the user clicks on a specific data point as the Gann Fan will be calculated
according to the axis scale and the position the mouse was released.
