DRALLE sScale, Руководство пользователя

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CAUTION:
Adjust your driving speed according to the nature of the path and the length of the woodpile.
Before starting the measurement, watch out for oncoming vehicles or persons!
The maximum possible vehicle speed is 20 km/h. For the prevention of accidents, however, it
is recommended to drive past the woodpile at a speed of nor more than 15 km/h.
TIP:
First start taking pictures once you start to move, in this way the widths of the pictures will be
more even.
TIP:
You can change the viewing angle of the camera while taking pictures. This may be necessary
if the woodpile is not parallel to the road, or if the height varies considerably.
TIP:
If it is not possible to take pictures, check whether a GPS signal is being received. Without a
known GPS position, taking a measurement is basically not possible. When attempting to start
a measurement without GPS signals, a message appears stating that no GPS position is known.
TIP:
If the analysis is not successful, try changing the exposure time.
3.2.2. Check and crop the captured picture sequence
Checking
After successfully taking pictures, it is possible to examine the individual pictures and to check
for any errors (for example, cropped woodpile areas if the woodpile is not parallel to the path).
To do this, you can scroll through the individual pictures in the “Picture sequence” user inter-
face.
Cropping
Cropping the picture sequence reduces the number of pictures to be analysed and speeds up
the analysis process. This step is not absolutely necessary for a successful analysis, but may
be helpful in different situations (for example, when distracted by walkers at the end of the
picture taking: You forgot to press “Stop” and the picture taking continued, while the area was
cleared for the walkers or you started taking pictures a distance before reaching the woodpile).
To crop the picture sequence in the front area, move to the location in the picture sequence
where you want to start the analysis and drag in a vertical gesture through the picture se-
quence. To crop the picture sequence at the rear, proceed accordingly.
On the start pictures the woodpile should take a maximum of 50%, as should be the case with
the last pictures of the sequence.
The pictures not taken into account will be gre yed out and the “Start” and “Finish” marks will
move to the new positions in the overview bar at the bottom of the screen (see Figure 6).