Posts tagged activitylog2

Timezone Aware Local Time

:: activitylog2, racket

I wanted ActivityLog2 to show that my New Zealand skiing run started at 10am, rather than showing 6am, which is the local time in Western Australia, where I live. This feature took a long time to implement, plus it required a surprising amount of effort, and this blog post describes some of the implementation details.

Interactive Heat Maps

:: activitylog2, racket

A HeatMap chart allows displaying a collection of GPS activities on a map and it is a nice way to visualize GPS data. On-line tools provide this functionality, but I wanted to implement my own, displaying heat maps using data from my own computer, without having to upload it to another website.

Building a Data Visualization Dashboard in Racket

:: racket, activitylog2, data visualization

When experimenting with a new data visualization or data analysis method, it is simpler to write a prototype as a separate application, to evaluate if it is worthwhile investing the effort of adding a full feature to ActivityLog2, this post illustrates the process used to write a “training load” dashboard application in Racket.

Running and Cycling Workout Editor

:: activitylog2

A Garmin fitness device can use workouts during a bike or run activity: they are a collection of steps with a duration and intensity (such as heart rate, pace or power). While running or biking, the device keeps track of the duration and will sound an alarm if the intensity is too high or too low. Workouts can be created on the Garmin Connect website, but I decided to write my own application for creating workouts.

Bike Trainer

:: bike trainer, activitylog2

I bought a bike trainer last June for indoor riding during winter (which in the southern hemisphere is in July and August.) and I decided to write virtual ride simulator to use it. The simulator would follow a predefined course on the map: the current position would advance based on the speed received from the trainer, and the application would control the resistance based on the slope at the current location.

Introducing ActivityLog2

:: activitylog2

ActivityLog2 is a program that can analyze data recorded by fitness devices such as swim, bike and run sessions. It can be used as a training log and to gain insights about your training using reports and trend charts.