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Alexander Avtanski's diary

Recent diary entries

GPSMash update - Support for NMEA import, data cleanup updates

Posted by Alexander Avtanski on 5 August 2013 in English (English)

Hello,

I just finished testing the latest update (1.3) of my GPS logfile handling tool GPSMash. The new features in version 1.3 are:

  • import of NMEA logfiles
  • improved track cleanup algorithm

GPSMash is a command-line Windows application that can repair broken GPX files, clean-up, organize, and analyze data, convert to various formats for visualization, etc.

Here is a sample video using data processed with GPSMash:

Click to play video: http://youtu.be/hAvHgBFEOAc

If you are interested, you can download it from my site:

http://avtanski.net/gpsmash

Any feedback is welcome.

Regards,

Alex

GPS track processing tool

Posted by Alexander Avtanski on 15 June 2013 in English (English)

Hello,

I've been working on a GPS track visualization and processing tool - GPSMash - for a while and today I just completed the first release suitable for public use (most bugs fixed, enough functionality, good documentation). This is a command-line Windows application that can repair broken GPX files, clean-up, organize, and analyze data, convert to various formats for visualization, etc.

Here is a sample video using data processed with GPSMash:

Click to play video: http://youtu.be/hAvHgBFEOAc

If you are interested, you can download it from my site:

http://avtanski.net/gpsmash

Any feedback is welcome.

Regards,

Alex

Location: US-101 SB entrance, San José, Santa Clara County, California, 95121, United States of America

GPS tracks around the office...

Posted by Alexander Avtanski on 27 July 2012 in English (English)

Today I put together one year worth of GPS tracks from my lunch walks and bike rides around the office. The colors correspond to different speeds - yellow is for walking, magenta is for biking and cyan - driving at highway speeds:

GPS Tracks

In case you feel offended by the bright neon colors, here is another version (blue = walking, green = biking, red = driving):

GPS Tracks

If you have tons of GPS tracks and want to visualize them, the tool I'm using is here: http://avtanski.net/projects/gps.

Location: Twin Dolphin Drive, San Mateo, San Mateo County, California, 94065, United States of America

GPS visualizer - minor updates

Posted by Alexander Avtanski on 30 September 2011 in English (English)

I'm in the habit of always carrying my GPS, recording where I go hiking, biking, or driving. Yesterday, while on a walk, I though that it should be pretty easy when visualizing the accumulated track to use different color for each mode of transportation. So, today I modified my GPS visualizer scripts a bit, adding parameters that allow selection by speed range.


On this image my trips are color-coded, based on the track speed:




Here RED is Driving (or rather "likely driving" based on the speed range), GREEN is Biking, and BLUE is Hiking/Walking.


If somebody is interested, the visualizer scripts, some more images, and a sample video can be downloaded from here:

http://avtanski.net/projects/gps .

Three years of dragging my GPS around with me...

Posted by Alexander Avtanski on 25 May 2011 in English (English)

I recently [re]discovered the years and years of accumulated GPS logs that I had from dragging my GPS with me on every hike or drive and decided to do something with them. After some Perl scripting and ImageMagick processing, I got this:



Click on the picture above for a full size view of this and other images.


BTW, this is my first diary entry - I hope the HTML works... If not, the URL is this: http://avtanski.net/projects/gps. The track visualization video is here: http://www.vimeo.com/23697355

Location: Walnut Blossom Drive, San José, Santa Clara County, California, 95123, United States of America
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