In the listener & aggregator, the signal strength is stored as an
unsigned byte. To display the actual (negative) value, one must
substract 256 (0x100) to the unsigned value.
This commit changes several things:
- Use the decimal (256) instead of the hexadecimal value (0x100).
- Don't substract 256 when copying the value to another unsigned byte
(aggregator).
- Be careful with the type length. In the positioning server, a SS
could be copied to a signed byte, while (theoretically) the negative
value can exceed the capacity of the signed byte. measurement.hh now
defines a type ss_t to store a signal strength value with the good
size (it is currently an int_fast16_t).
Add classes RADAR and CartographyAlgorithm, which is the super-class of
SS map based algorithms.
Measurement: Add functions:
- add_ss_list(), to add several SS in one operation.
- merge(), to merge a Measurement into another.
- ss_square_distance() (from old commented code), to compute the
distance to a SS value or another Measurement.
posexcept: Add exception cannot_merge, used by Measurement::merge().
ReferencePoint:
- Add ss_square_distance() and functions used by it:
complete_with_dummy_measurements(), compute_ss_square_distance() and
get_all_measurements_sorted(). Use of sorted values (map instead of
unordered_map) is useless, should be fixed soon.
- Delete old commented code: getPowerForAp(), addMeasurement() and old
getSsSquareDistance().
Stock: Add function closest_reference_point().
- Where possible, use initialisation lists in class definition instead
of explicit variable initialisations in source file.
- Rename some variables (use of "source" in copy constructors and
operators…).
- Suppress useless Doxygen comments, allow non-documented members in
Doxyfile.
Matteo Cypriani