ProCoach

Yep. Love 20 Hz MoTeC and VVBOX exports. Hopefully, AiM Sports soon...

amso3

Tentenths

Explain how you got two laps to overlay AIM data. Are they from the same session or different sessions? Thanks for sharing

ProCoach

Yes, please. I downloaded your (ten tenths) linked file, opened it in GE and got only one red lap. Thank you!

tentenths

Yes it appears what I uploaded is only the red lap. Sorry. I think it showed 2 for me because it was linking to the other kml lap on my desktop and apparently you can't save both laps in to a new KML using ge but you can open multiple colored laps and compare them in ge.

In my video there is a text field in gpsprune that I stupidly said means nothing…this is the field where we should note lap3 of test 1 or whatever your naming convention is…then this becomes a layer in ge and you can turn on many layers in different colors. I just looked at 3 that came from AIM. So you can have many laps from many sessions.

Original process: I exported 1 test from AIM. Using gpsprune I exported 2 different laps and made them different colors. So I now have 2 KML files. Then I opened the first kml and then went to file open and opened a 2nd kml and the 2nd shows within the first. So you add them in and I think they are temporary. When you quit ge they are not compiled in to one. So each time you open and add them to view.

Here is another link with 2 individual laps that you can open one then the other and it should work. https://goo.gl/E9j7SB
Let me know if it again does not work because it works excellent here. We just have to manually make them to compare them in ge. AIM will solve this I think.

amso3

Tentenths

Thanks for sharing. It did work for me. I'll give it a try on some of my data. Let's hope AIM will get this feature added, but they are working on some cool stuff now, so we'll see.

tentenths

What "cool stuff" and do you think we will see analysis v3 at PRI?

mglobe

Ok, I was able to display laps in Google Earth, which is VERY cool. However, when I compare from two different sessions, GPS drift makes it a bit difficult. I know that in Traqview, you can adjust sessions so that they overlay to correct for this. Is there any way to do this in RS2, or in Google Earth?

tentenths

I do not know of a way to reposition the laps in GE???? Hello AIM...we need this?

Traqmate can do session to session reposition nicely but how do you export a KML?

amso3

If you are trying to line up laps in RS 2 that were done at different times, you could try going to Lap Manager tab (at the bottom) and click on GPS Lap Insert (upper right) and use the current Lat and Long in GPS manager. This will line up start finish, but might not affect "drift"

996tnz

It is very cool isn't it! I mapped a bunch of best laps (4 different drivers, same car), to Google Earth (GE) a while back but had never heard of GPS Prune or other tools so IIRC I got the co-ordinates of each end of the Start-Finish line from GE and extrapolated the line out a bit beyond the track edges to allow for that GPS drift. I then renamed the AIM data file to CSV, opened it in notepad and manually marked out the laps (by spotting the nearest coordinates to ones on that S-F line) before editing it down and resaving it with just the lap of interest in each case. Would've been better to do that Start-Finish lap cutting step in Excel though.

On viewing the 4 laps as KMZs superimposed on Google Earth it was obvious to me too that there was up to about 10 feet of GPS drift between some of them. To correct this, I needed a known reference point where I'd know the car had to be in the same place each lap, even with different drivers. Couldn't quite find such a spot on their live laps, but the pit entry chicane was ideal as it is very tight and narrow with big kinks, and the slow speed of the car made the most of the GPS sample rate. So I worked out the GPS offset (well offsets actually - for both latitude and longitude) needed to put the car through that chicane without taking out a wall then imported the CSVs into Excel and applied that same correction to the lap of interest in that same session, renamed it to KMZ (and maybe had to add a bit of a header but its a couple of years ago now so don't quite remember).

On loading those back into Google Earth it all looked right after that correction, allowing proper comparison of lines. Can't post the map to illustrate sorry as it's back at home. The key is just to pick a tight and bendy spot where you know the car will be, though you could also do it as a two step process by looking for one spot on track where it is constrained on the Longitude axis and another where it is constrained on the Latititude axis to work out each offset.

Am still keen to hear about any tools that would make doing the above a bit faster and easier though. Maybe Google Earth itself now has a simple tool to drag and drop the lines around to align them to such a reference point or points?

amso3

AIM next gen GPS will be more accurate than today so that will help. We (dealers and users0 all are asking for the ability to export single laps, preferably laps overlaid in comparison. Give it time, this is complex stuff.

996tnz

Picture being worth a thousand words, I just found some of those overlaid colour coded maps I generated from the drift corrected AIM Solo data some 18 months ago, though just a two way comparison. My best lap in red, my other 3 fastest laps in green mapped against a team mates 3 fastest laps in yellow. Plotted on Google earth so fully zoomable. Comparing this to our sector splits allowed us to compare cornering lines where one or or other of us was running a sector faster than the other.

I was quicker through here by 0.6s but have since changed my line again, now running the second inside kerb.



He was quicker be the same margin through another corner, shown in the standard AIM view (pink, orange being faster, running right to left) below. Having a map under the lines helps a lot with putting changes into practice.

Caddell

AiM Race Studio 2 has just been updated and one of the updates allow track sessions to be exported in the Google Earth .kml format with individual lap placemarks. With these placemarks included, once in Google Earth you can easily change the properties (line color, width, transparency, etc.) for individual laps.

In RS2 with an open test, go to 'File'=>'Data Export to Excel' menu item and select the 'KML' format and finally select the laps (some or all) that you want exported.

amso3

Super, thanks for the update!

amso3

Roger

I was not able to export one lap. What am I missing?