Assigning Reference and Main for Runlog Data Comparison
Insure at least two Lapfiles are open. To assign the Reference and Main status to two laps, in order to
provide comparison data with the Runlog pages:
Select any open lap as the Reference by placing the mouse cursor over the desired Lapfile tab clicking
the center button on the mouse.
If you are not using a three button mouse, it will be necessary to
go to the File Command in the Main Menu and select the Set
Reference File / File command.
This action will turn the Lapfile tab
red
.
Select any second lap as the Main file by placing the cursor over any other desired Lapfile tab (other
than the just selected Reference file) and left clicking.
Now, look again at the min, max and average data located below the track map on the Lap Zoom Runlog
page. The above action should activate the comparison between Lap 1 and Lap 3.
There is no set method for selecting Reference / Main files. It is at the users’ discretion to determine
which files will receive the Reference and Main settings. Either selection can be assigned to any open
file, by using the above instructions. The only item that must be remembered is to always select the
Reference file first, then the Main file second.
While it is not necessary to select Main and Reference settings to graph and view data, it is necessary to
perform the above actions in order to compare data in the Runlog pages.
Graph Scaling Explained
Racepak technicians assign each channel a default minimum and maximum
graph scaling value. As shown, GPS_MPH is set to graph data between 0
and 200 MPH.
When testing/racing at various locations, different values are obtained. For
example, the MPH obtained on a one mile track would be slower than the
MPH obtained on a two mile track. If the MPH scaling was set to graph
between 0-100 MPH, but 150 MPH was obtained during the run, the MPH
trace would go off the top of the graph, thus, the importance of graph scaling.
Let’s take a moment to discuss graph scaling. The visual rise and fall of graphed data is determined by
the scaling values. To provide a graphic example, look at the following two graphs. Both are the same
GPS_LatGs data, but with different scaling values.
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