Free Geography Tools

I”ve posted about my free app G-Raster before – it converts raster imagery like topo maps and aerial imagery into the format compatible with recent Garmin GPS models (the Colorado, Oregon, and Dakota series). I’ve just uploaded version 1.3, which adds some major improvements:

- The option to rescale images that are too large for Garmin units (> 100 million pixels) to a smaller size; the previous version only let you crop the image

- Automatic rescaling of images to make sure that less than 100 tiles (the maximum for Garmin units) are created

- Display of the image resolution in meters per pixel, plus the maximum Garmin zoom level at which an image can be viewed without pixelization (aliasing)

- A view of the central part of the raster imagery, updated when the image is rescaled to a smaller size, or when the JPG compression is modified

- Your choice of 6 different algorithms for use in rescaling imagery

- Adjustment of the JPG compression factor using a slider, with immediate updating of the image view so that you can see the effects.

- Major additions to the help file

USGS Topo Maps, Aerial Imagery, And Scanned Maps On Your Garmin GPS!

Choose The Right Option For Your Garmin Handheld Model

Actual screenshots from a Garmin Oregon!

G-Raster For The Garmin Colorado/Oregon/Dakota/62/78 Series “… great (tool) for creating custom maps ...” GPS Tracklog Blog “… easy as 1, 2, 3.” gpsinformation.net “Works great!” GPSFix "Holy crap; this looks amazing.” GPSFileDepot Click here for more info on G-Raster

Actual screenshots from a Garmin 60Cx!

Moagu For The 60C(S)x, 76C(S)x, And Some eTrex Models "... Moagu rocks! This really is revolutionary!" GPS Tracklog Blog Click here for more info on Moagu

Related posts:

1. G-Raster Updated: Raster Imagery In Garmin Handheld GPS Units
2. Put USGS Topographic Maps, Aerial Imagery, And Other Raster Imagery On Your Garmin Handheld GPS
3. Converting Raster Maps To Garmin Vector Format With BMap2MP
4. Cheap Worldwide Road And Contour Maps For Garmin GPS Units
5. Create Garmin-Compatible Raster KMZ Files From Georeferenced Imagery With G-Raster
6. Raster Maps On A TomTom GPS
7. Raster Maps For Garmin And Magellan GPS Units, And Mobile Phone Apps, With Mobile Atlas Creator
8. Map Warper – Georeference And Export A Raster Image
9. Tools To Help With Creating Garmin KMZ Files With G-Raster
10. Updates On The Garmin 1:24K US Topographic Map Front