Tracklog Workflow

I am trying to find ways to shorten my GPS workflow by a bit. I use a GisTeq CD-110B tracklog recorder, and it writes a new log every time it powers up or down, which can create a lot of logs since the thing powers down after 15 minutes of inactivity and powers up when […]

First Attempt at Rocktop Trail

Yesterday (February 29, 2008), I attempted a new trail, Rocktop. It is a 1.5 mile strenuous trail that is mostly upward with many hazards associated with mountain climbing. The trail is quite nice. On Pinnacle you can only see the mountain ahead of you and the trees that you have already passed, but on Rocktop […]

Elevation Profile of Hike

Now that I have had a little more time to play with the data obtained during my hike on Monday, I have found a few tools that will allow me to show interesting things from the tracklogs. One of my favorite things so far is the elevation profile, which shows the change in elevation during […]

A Hike To The Top

King’s Pinnacle I am a bit fatigued at the moment (woke at around 3am and then went for a hike), so I am just going to let the GPS explain everything: [click me]

Sample Tracklog Map Overlay

This is a sample of a tracklog being overlayed on a map, using Google Earth. This shows the best and worst of the GPS system. First of all, it provides a nice clear shape of where you travel. The trouble begins when the device records a bogus point in its log. When you see sporadic […]

Another GPS Use: GeoTagging

Another use for the GPS tracklock is geotagging. GeoTagging uses a digital or encoding film camera’s internal clock stamp on images in the EXIF data format and the tracklog from a GPS (automatically using known time information) to match points in the GPS to images. A lot of modern utilities, including Google’s Picasa (with Google […]

Working with Tracklogs

The most useful feature of my new GPS unit is the ability to record and transfer tracklogs. Tracklogs are a GPS-friendly way of making a note of each piece of data they create when reading their latitude, longitude, altitude and time. There are several ways this information can be recorded. Magellan uses a standard non-friendly […]