I recently purchased an iPhone app that captures GPS and accelerometer data for
use in a race car. The app (Harry's Laptimer Pro) can export the captured data
in a couple different formats. I thought it might be fun to try and get this
data into QC to overlay onto in-car video. Sort of a poor person's Traqmate.
I'm brand new to QC, but a rusty C programmer so I understand the concepts.
Is it too ambitious to want to create a track outline based on the GPS
coordinates, display the lateral and lineal acceleration as simple left-right,
up-down gradients, and a simple string of current speed? Are there already
examples of someone using laptimer data with QC?
Thanks for any pointers.
Here's a short sample of lap data in XML.
<?xml version="1.0" encoding="windows-1252"?>
<LapTimerDB>
<name>LapTimer Database</name>
<lap index="22">
<date>05-JUN-10,12:12:20.00</date>
<lapTime>01:50.83</lapTime>
<vehicle>Carrera</vehicle>
<track>6/5/10 start</track>
<addedAligned>true</addedAligned>
<overallDistance>1596.4</overallDistance>
<recording>
<fix index="9621">
<date>05-JUN-10,18:12:18.70</date>
<coordinate>32.780728,-117.123947,12.0</coordinate>
<speed>20.4</speed>
<positioning>0,3</positioning>
<satellites>0</satellites>
<direction>314.0</direction>
<hdop>1.42</hdop>
<relativeToStart>0.0,00:00.00</relativeToStart>
<acceleration>
<source>1</source>
<lateral>0.12</lateral>
<lineal>0.00</lineal>
<coordinate>32.780690,-117.123991</coordinate>
</acceleration>
</fix>
<fix index="9622">
<date>05-JUN-10,18:12:18.:0</date>
<coordinate>32.780739,-117.123960,12.0</coordinate>
<speed>20.4</speed>
<positioning>0,2</positioning>
<satellites>0</satellites>
<direction>314.0</direction>
<hdop>1.42</hdop>
<relativeToStart>1.7,00:00.30</relativeToStart>
<acceleration>
<source>1</source>
<lateral>0.06</lateral>
<lineal>0.05</lineal>
<coordinate>32.780720,-117.123982</coordinate>
</acceleration>
</fix>
<fix index="9623">
<date>05-JUN-10,18:12:19.:0</date>
<coordinate>32.780779,-117.123985,12.0</coordinate>
<speed>20.9</speed>
<positioning>0,2</positioning>
<satellites>0</satellites>
<direction>318.0</direction>
<hdop>1.42</hdop>
<relativeToStart>6.7,00:01.30</relativeToStart>
<acceleration>
<source>1</source>
<lateral>0.11</lateral>
<lineal>0.00</lineal>
<coordinate>32.780746,-117.124029</coordinate>
</acceleration>
</fix>
<fix index="9624">
<date>05-JUN-10,18:12:20.99</date>
<coordinate>32.780881,-117.123975,12.0</coordinate>
<speed>24.6</speed>
<positioning>0,2</positioning>
<satellites>0</satellites>
<direction>4.0</direction>
<hdop>1.42</hdop>
<relativeToStart>17.9,00:02.29</relativeToStart>
<acceleration>
<source>1</source>
<lateral>0.36</lateral>
<lineal>-0.02</lineal>
<coordinate>32.780892,-117.124167</coordinate>
</acceleration>
</fix>
<fix index="9625">
<date>05-JUN-10,18:12:21.:0</date>
<coordinate>32.780923,-117.123928,12.0</coordinate>
<speed>33.3</speed>
<positioning>0,2</positioning>
<satellites>0</satellites>
<direction>46.0</direction>
<hdop>1.42</hdop>
<relativeToStart>24.3,00:03.30</relativeToStart>
<acceleration>
<source>1</source>
<lateral>0.39</lateral>
<lineal>0.00</lineal>
<coordinate>32.781049,-117.124073</coordinate>
</acceleration>
</fix>
<SNIP>
<fix index="9872">
<date>05-JUN-10,18:17:40.16</date>
<coordinate>32.781548,-117.122371,15.0</coordinate>
<speed>78.4</speed>
<positioning>0,3</positioning>
<satellites>0</satellites>
<direction>145.7</direction>
<hdop>1.42</hdop>
<relativeToStart>1577.7,01:25.17</relativeToStart>
<acceleration>
<source>0</source>
<lateral>-0.33</lateral>
<lineal>-0.62</lineal>
<coordinate>32.781464,-117.122517</coordinate>
</acceleration>
</fix>
</recording>
</lap>
</LapTimerDB>
Thanks,
-Terry
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