Ashtech MobileMapper 10 Specifikace stáhnout pdf (Strana 32)

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Logging a Point

Feature

• Stand near the point you want to log.

•Tap Log (or press the “–” key underneath). A menu

appears listing all the layers in the job.

• Tap on the point layer name (“Points” in our example).

• Tap on the Settings tab and check or change the averaging

time expressed in seconds. As the last chosen averaging

time is prompted by default, you may not have to view this

tab every time you log a new point feature.

• To log the point with an offset, tap on the Offset tab and

enter the following parameters (for no offset, just check

that the horizontal distance is 0 on this tab and proceed

to the next step):

– Bearing: This field is filled automatically either from

the GPS compass, the E-compass if this option is

activated in Menu> Options> E-compass, at the time you

access the Offset tab, or from the range finder, if there

is one (see below).

If the E-compass is used, a valid measurement will be

made if you take care to hold the receiver horizontally

in the direction of the point feature, before you start

logging the feature.

If neither the E-compass nor a range finder is used,

then the GPS compass can provide this value by

default. A valid measurement will be made if you take

care to steadily walk in the direction of the point

feature before you start logging the feature.

– Horizontal Distance field: Distance to the point feature.

If a range finder is used, tap on the Read Range Finder

button once the range finder can provide valid

measurements. This action will automatically fill in the

Bearing and Horizontal Distance fields.

If no range finder is used, type an estimate of the

horizontal distance directly in the field using the

keyboard. The better you estimate the distance, the

better the collected position.

•Tap OK. MobileMapper Field instantly starts logging the

point. Wait for the end of the averaging process while

holding the receiver still and keeping an eye on the

progress bar. MobileMapper Field then automatically

switches to the attribute list. Note that the computed

coordinates of the point feature are displayed at the end

of the list of attributes.

Bearing

d= Horizontal Distance

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