GPS data masks are flags that specify which GPS data elements have changed. Parameters using data masks can be any combination of the following values:
|
Constant |
Description |
Value |
|
GPSDATAMASK_POSITION |
Position information |
0x00000001 |
|
GPSDATAMASK_SATELLITE |
Satellite Information |
0x00000002 |
|
GPSDATAMASK_DOP |
Dilution Of Precision |
0x00000004 |
|
GPSDATAMASK_BEARING |
Bearing |
0x00000008 |
|
GPSDATAMASK_WAYPOINT |
Waypoint data |
0x00000010 |
|
GPSDATAMASK_TIME |
GPS Universal Time Coordinated (UTC) |
0x00000020 |
|
GPSDATAMASK_SIRF_EX |
Advanced SiRF data |
0x00000040 |
|
GPSDATAMASK_ERROR |
Error information |
0x00000080 |
|
GPSDATAMASK_EPE |
Estimated Position Error |
0x00000100 |