Adding Lap Markers
Lap markers can be added either by setting up a button on the DASH2 or DASH3 to add a marker, or by adding them to data using the Race Technology Analysis Software and saving the resulting .LAP file to the flash card for transfer to the VIDEO4.
Adding Lap Markers using DASH2 or DASH3
Lap markers can be added real time by using either DASH2 or DASH3. When the VIDEO4 is in operation, a track marker will be added each time the DASH2 or DASH3 button is pressed. Please read following section on more information on this.
Adding Lap Markers using LAP marker files
LAP files contain LAP marker information with respect to an origin. Once the VIDEO4 receives a GPS Lock it will match with the origin of all existing LAP files on the Removable CF card. If a matching file is found, the LAPs markers are added according to the file. If there isn’t any matching LAP marker file on the CF card, the VIDEO4 unit will save a LAP file based on the origin location with LAP markers added while recording.
To generate a Lap marker file from raw data, please refer to the section on Adding Track Markers in the Analysis Software documentation or Race Technology On-line Help System. Then these track markers can be saved into a Lap marker file (.LAP) by using the File -> Advanced Load/Saves -> Save Markers/Sectors menu command in the Analysis software.
Lap files must have the following naming conventions.
- The file names MUST be in 8.3 format, meaning that it must have no more than 8 characters before the decimal point and 3 characters after the decimal point.
- The file extension MUST be .LAP
- Entire file name must be in UPPERCASE letters, including the extension.
The resulting .LAP file should be saved to compact flash card for transfer to the VIDEO4. The .LAP file must be placed in the root directory of the Compact Flash card.
At the start of a run, the VIDEO4 will check its current position against the reference positions in any .LAP files on the compact flash card. As such, you can have 10 different .LAP files on the card, and so long as they were not started within about 15km of each other, the VIDEO4 will pick up the correct one for the current location. For this reason, it is very important that the VIDEO4 has a GPS lock at the start of the run; otherwise it will just pick up the first file found. If there are no files on the compact flash card, then it will write to the file MARKER01.LAP, if MARKER01.LAP already exists, it will go to MARKER02.LAP, and so on.
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