GRASS GIS - A Simple Map Calculator Tutorial

Some examples using the r.mapcalc module in Grass GIS - reposting soon


  1. Hello,

    My name is Lindsy and I am writing on behalf of ( . We recently noticed your website and thought that you'd be interested in a contest we are running for a Garmin Handheld GPS.

    Our new GPS sharing app, Blipp just went live on the Google Play store and I thought you and your readers would enjoy this app. Blipp is an exciting, interactive GPS location sharing app. Friends are able to share important events with one another using a Blipp on a map.

    ** Contest Details
    To help promote Blipp we decided to run a contest. Simply post about Blipp on your website, Facebook or Twitter page and then shoot us an email back with the URL and then you will be entered to win! At the end of the contest (April 30th) we will randomly select 1 entry and that winner will receive a Garmin Handheld GPS ( .

    There are 4 simple ways to enter:
    1. Post a review on your website/blog and you will be entered to win 5 times.
    2. Post a link/mention on Facebook and you will be entered to win 2 times.
    3. Post a link/mention Blipp on Twitter and you will be entered to win 1 time.
    4. Like us on Facebook here and you will be entered to win 1 time.

    You can do all 4 for a total of 9 entries!

    Not only will you have a chance to win but you can also try an amazing location sharing app which is probably right up your alley (based on what we noticed on your website). Best of all it only takes a minute or two to enter. Please check out the app here: (

    Check out ( today, and help spread the word... then simply shoot us back a quick email with the URL and you will be entered to win. The contest ends April 30th. Please reply to this email with any questions.


    Lindsy Schafer


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