GTrek II User Manual page 38

continuous line will be broken. Imagine taking some data in a location, about 2 miles,
switching your GTrek off and then moving to another location some 20 miles away
and switching your GTrek back on again and gathering another 2 miles of data. The
resulting information will show total distance of 24 miles with Interpolation switch on
but only 4 miles with it switch off. Interpolation is switched on by default and will
provide a continuous line and a single segment when exported to Google Earth.
13.
X Axis selection
This is only applicable to the Altitude and Speed displays. It switches the X axis scale
between time at which the data was gathered, data record number and total distance.
With the Altitude display and the X axis set to distance, select show distance and the
distance and hill or slope inclination will be displayed.
14.
Duration to Accumulative Time.
Clicking the Duration to Accumulative Time will re-asses the data in the total time
section of the Route Summary. If unchecked this will be the total time between the
time and date of the first record to the time and date of the last record. If however this
box is checked then the total time is the summation of the Down Time + Up Time +
Flat Time. If however Interpolation is checked then it is unlikely that these two
calculations will be different.
15.
Show Map
The actual route path will be displayed on a simple green background but if an
internet connection is available then it will be displayed with a terrain image backdrop.
This can be zoomed in or out independently of the speed and altitude. It can also be
switched to/from a satellite view. The clickable Show Map menu item will switch
between the terrain and graphical display modes. If no internet connection is
available this this item will be greyed out.
16.
Smooth Line
When enabled (by default) it will attempt to smooth out the displayed line with a spline
fit curve. The difference is more noticeable on route data when the sample rate is
slower as may be used when walking.
4.
Settings Option
1.
Trim Data Stream
The data gathered may contain data either at
the beginning or at the end that is not relevant
to the trip. For example your GTrek is switched
on when you leave your place of residence and
then you travel by bus to the first ski lift or after
the last ski run there is bus ride back. Selecting
this utility will allow you to trim off data both at
the beginning and end. Alternatively the data
stream contains two segments that are of
separate interest. Simply trim the end to get the
first segment and save then wind back the end
trim and trim from the beginning to get the
second segment, save the data under a new name.
Data trimmed in this way is not deleted it's just hidden.
2.
Delete Data Segment
Often during a journey if a building is entered, for example lunch, the data collected
by the GTrek can be a bit erratic due to limited signal strength or signal reflections.
This utility allows the user to delete records (permanently) from the data stream.
3.
Delete Inactive Data
Data collected while motionless is deemed inactive data and can be removed
manually with the "Trim" or "Delete Segment" utilities. The Delete Inactive data utility
attempts to perform this function automatically. Inactive data in this sense is where
the speed of movement is very low. Once deleted data orphans can be created, this
utility can also remove these.
4.
Trip Details
By selecting this option details of the trip can be entered. This data is used by the
Profile display and then saved along with the route data.
© GTrek Ltd. 2013 Page 37 of 62 Version 5.4.0