Magellan MobileMapper Pro Guía De Inicio página 19

Offsetting an area
(or a line) feature:
On the offset screen,
the Direction field will
replace the Bearing
field (see previous
page, Offsetting a point
feature). In the Direc-
tion field, you will have
to specify the location
of the feature with
respect to your actual
path (on the left or on
the right):
Line Area
On the left On the right
Time, length
and area indications
- Recording an area feature
The area feature in the "Tutorial" feature library is for
describing parks. Area features are exactly like recording
line features except that you have to return to the location
where you began logging the area feature. The reason for
this, besides mapping the area feature completely, is that
MobileMapper Pro will connect the first and last recording
positions for all area features. In the same way as you did
for the line feature, set a specific logging interval for the
area feature: press MENU, select the Logging Interval
option and choose a type and a value for the logging inter-
val.
You can record large area features with straight sides more
quickly and accurately by describing the feature at one of
its corners and then pausing the feature. Then move to the
next corner, resume logging for several seconds and then
pause the feature again. Do this at each corner until you
finish logging at the last corner. Then close the feature.
MobileMapper Pro will record a single averaged (and
therefore more accurate) position at each corner and then
automatically connect each corner - including the first and
last corner - with a straight line.
- Time on point features, length of line features, area of
area features
When you are recording features the logging screen indi-
cates the time you have spent on point features, the
length of line features and the area of area features. The
values increase until the feature is closed. The calculation
for area features is not accurate until you return to the
start location or the last corner of any feature with straight
sides.
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