Telemeter Compass is an application that calculates the distance from the current position to a point distant. It also contains a built-in compass and memorizing and guidance to positions. I-Ideal application for hikers, mushroom pickers, cyclists, hunters of historic relics, four wheel drive enthusiasts and, broad speaking, for anyone who needs to search and record outdoor locations.
To get the distance to a target, you need to point the mobile to the target and press the button (1) while maintaining the target pointed during all the acquisition process. This gets the first angle. Then move about thirty meters in perpendicular to the target, point again to the target and press the acquisition button (2) (it is very important to keep the mobile steady while capturing and if necessary, use the buttons zoom (3) to better focus). Finally, at (4), the application displays the distance to the target calculated by the method of triangulation (two angles and lateral distance)
(5) Orientation relative to magnetic north, with camera to point at the target
(11) Horizontal tilt indicator for vehicle
(11) Vertical tilt indicator with vertical slope expressed in percent with camera to point at the target
(7,8) Memorizing locations and guiding function (bearing and distance to target)
-Calibration of tilt sensors
-Magnetic Sensor Calibration
(5) Bearing relative to magnetic north
The application shows the angle (from 0 to 360 degrees) and the quadrant of the compass rose. The resolution is a tenth of a degree, but the error is usually greater than five degrees. It is worth to say that the accuracy of the orientation depends on how good the mobile sensor is, but we must also take into account the influence of external events of a temporary behavior (personal computers, fluorescent lights, metal, etc.) That spoils measurement. In addition, the sensor may need to be recalibrated magnetic, though usually come standard calibrated.
Is it necessary to calibrate the magnetic sensor?
To find out if you have to calibrate the sensor, put the phone on a flat surface where you can mark a line and point until it reads 0 degrees, rotate it 180 degrees (to match the stripe) and if the orientation indicator mark 180 degrees with an error of less than 5 degrees, the it is assumed that the North-South direction is acceptable. Do the same in the East-West direction, that is, 90-270 degrees. Repeat with the phone in landscape portrait mode (as if taking a photo) to the North-South and East-West. If the result is reasonably good, it is not worth to calibrate the sensor, else go to 'Settings'.
(11)Vertical tilt indicator with vertical slope expressed in percent with camera to point at the target
Stand as close as possible to ground and point the camera at the end of the rise or fall. The vertical tilt indicator will inform the percent slope.
The magnetometer indicates the absolute value of the magnetic field received by the mobile.
Storing locations and guiding function
If the GPS is on, the application lets you save the current location in a database with the 'Save the current position' menu option and that position can be retrieved at any time using the 'Choose destination position' menu option. Also, this option allows you to choose between editing the stored positions (modify / delete) or you can tell the application that guides you indicating the bearing and distance (with the 'Go there') to selected position. Once guidance feature is activated, the screen shows a red arrow around the center sight indicating the bearing to target and at the bottom of the screen shows the straight line distance to target.
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