Greg Hewgill (ghewgill) wrote,
Greg Hewgill
ghewgill

xearth tropical storm overlay

Two new things for xearth this week. First, there is a new overlay for current tropical storm activity. The source data is the Tropical Storms, Worldwide data set from the University of Hawaii. I wrote a script to download the current tropical storm file (which is a flat ASCII file), some Python code to convert that to an SVG file, and then converted that to a transparent PNG for the overlay.

The other new thing is xearth now supports multiple overlay files. Here's an example showing all map and overlay features (the Living Earth base map, and earthquakes, storms, and clouds overlays).



I'm going to improve the presentation of the tropical storm map so the labels are more visible, especially when combined with the cloud overlay (white on white is not an ideal colour combination).
Subscribe

  • 2013 in review

    2013 is the year when everything changed. The biggest event was the birth of our daughter Lily. She was born prematurely in Shanghai while we…

  • 2012 in review

    2012 has been fairly quiet. Maybe it just seems that way because I haven't actually written anything new in this blog since last year's annual…

  • new photo galleries

    I've been busy processing photo galleries from the last year (or two) and putting them online for your perusal. Vancouver 2010 Northland…

  • Post a new comment

    Error

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

    Help
  • 0 comments