Free Geography Tools

Compare Geographic Boundaries With Move Outlines

Leszek Pawlowicz — Thu, 09 Sep 2010 12:00:16 +0000

I can remember as a kid (way too many years ago) being impressed with a map of the lower 48 United States that had the outline of Alaska superimposed on top of it. The Alaska outline virtually covered the entire map, and there was a comment to the effect that,”Alaska is almost as large as [...] Related posts:

Inexpensive(?) Copies Of ESRI Products For Non-Profits

Leszek Pawlowicz — Wed, 08 Sep 2010 18:43:13 +0000

ESRI’s GIS And Science blog posts about a new ESRI program to provide GIS software for non-profits: The program allows qualified nonprofit organizations to request up to 75 seats of ArcGIS Desktop and 2 seats of ArcGIS Server software per organization. Alternatively, organizations can choose from four levels of a special nonprofit organization enterprise license [...] Related posts:

Draw A Polygon In Google Maps, Get The Enclosed Area

Leszek Pawlowicz — Wed, 08 Sep 2010 11:32:00 +0000

With the Google Planimeter site, click on the map to add polygon points: And have the area enclosed by the points be calculated in multiple units: Related posts:Draw And Edit Google Maps My Maps Layers With DRAWaMAP Draw GPX Data Directly On Web Maps Using The GPS Visualizer Freehand Drawing Tool Converting Text/Spreadsheet Data To [...] Related posts:

Find Your Own Double Rainbow – So Intense

Leszek Pawlowicz — Tue, 07 Sep 2010 11:50:00 +0000

One of the more interesting Google Maps mashups I’ve seen in a while, OMGRainbows! mixes information about where it’s raining in the United States along with the angle of the sun, and plots areas where you’re most likely to spot rainbows. To see a rainbow, you need to have the sun behind you, shining towards [...] Related posts:

AndroGeoid: Week Of 9/3/2010

Leszek Pawlowicz — Fri, 03 Sep 2010 12:43:00 +0000

This week in Android-related geoposts on the AndroGeoid website: Battery drain tests for GPS, Bluetooth, WiFi/3G and LCD screen display in Android – which ones are worst Ways to extend useful field battery life for Android units A review of the geographic features of the new Android Bing search app from Microsoft A review of [...] Related posts:

The Global Peace Index Map

Leszek Pawlowicz — Thu, 02 Sep 2010 11:51:00 +0000

Vision Of Humanity’s Global Peace Index Map displays a choropleth view of the “Global Peace Index” (GPI), a quasi-arbitrary composite index of 23 factors like military expenditure, level of violent crime, number of heavy weapons, and more. More meaningfully, you can also select individual factors for display on the map, along with a time slider [...] Related posts:

Crowdsourcing And Coordinating Data Collection With Handheld GPS Units

Leszek Pawlowicz — Wed, 01 Sep 2010 11:48:00 +0000

Got an email today from someone with a data collection/coordination/assembly problem. They have multiple people out in the field with Garmin GPS units recording data, and bringing it back to a central location for collation/combination when they’re done. Since Garmin GPS units have limited capabilities for data storage – coordinates, name, comment, date and time, [...] Related posts:

Do-It-Yourself Aerial Mapping At GrassrootsMapping.Org

Leszek Pawlowicz — Mon, 30 Aug 2010 12:26:00 +0000

The Grassroots Mapping wiki collects information, how-tos, current projects and general resources for creating your own georectified aerial imagery using cheap hardware to acquire the imagery (balloons, kites, and UAVs). Check out the main site for blog entries on current projects as well. From the website: Seeking to invert the traditional power structure of cartography, [...] Related posts:

AndroGeoid: Week Of 8/27/2010

Leszek Pawlowicz — Fri, 27 Aug 2010 13:57:00 +0000

This week on AndroGeoid, my website devoted to geography on the mobile Android OS: Reviews of Topo Maps and BackCountry Navigator, two apps that offer offline cached viewing of USGS topo maps and OpenStreetMap maps A look at 3banana Notes, a strong basic notetaking app with geotagging Snaptic’s Compass app, which can export position and [...] Related posts:

Draw And Edit Google Maps My Maps Layers With DRAWaMAP

Leszek Pawlowicz — Thu, 26 Aug 2010 11:54:12 +0000

Joining quikmaps and ScribbleMaps, DRAWaMAP lets you draw features in a Google Maps interface, and save them. Supported features include: Lines Markers Polygons Time polygons – you set a time and speed, and DRAWaMAP draws a polygon encompassing the walking distance around that point based on Google Maps data. Map Density Quadtree – ? Not [...] Related posts: