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Append p to tick, and the annotation
interval is expected to be in transformed units, but annotation will be plotted
as un-transformed units. E.g., if tick = 1 and power = 0.5 (i.e., sqrt),
then equidistant annotations labeled 1, –4, –9, ... will appear.
Figure:
Exponential or power projection axis. (top) Using an exponent of 0.5
yields a
axis. Here, intervals refer to actual data values, in
-R0/100/0/1 -JX3 p0.5/0.4 -Ba20 f10 g5.
(bottom) Here, intervals refer to projected values, although the anotation
uses the corresponding unprojected values, as in -Ba3 f2 g1 p.
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Paul Wessel
1999-12-03