Geoscience Australia and Sunmap - digital maps including topo

Maptrax digital topographic, aviation, marine and street maps. As of August 2007, the availability of Maptrax products is strictly limited, due to retirement of the owners. Please ask when ordering.

Memory-Map comes with topo and feature maps for all Australia

Australian Topo mapping for Garmin GPS

Hema Maps - Australian touring and outback maps. Westprint Maps, State mapping Authority maps

How do digital maps relate to GPS? Copyright Kimball J Thurlow, 2002.

Forms of Digital mapping 1. Raster maps: Digital mapping is available to cover all of Australia. This mapping is usually scanned from paper versions, and is called raster mapping. (Raster, because it is made up of collections of pixels, or is a bitmap). Raster mapping has the advantage of reproducing exactly what we see on paper, including shading, colouring, features and contour lines. Raster maps are one scale only, you cannot decrease the scale without losing resolution, because the image becomes "pixelated". 2. Vector maps: The other type of digital mapping is called vector mapping. This is because it is made up of simple instructions like a program. For example: 10. Join points 2 and 3 with a red line 2mm thick. 20. Join points 2 and 4 with a black line 0.5mm thick. and so on. Vextor mapping has the advantage of being able to be searched for names, words and phrases. In effect, it is its own database, so is much more useful in a "find where" situation. It is also scaleable, that is it remains in focus regardless of scale.

Using maps in GPS Raster mapping: This type of mapping is used by programs such as Trax, Fugawi or Oziexplorer, for use on a computer or PDA. Raster mapping cannot be loaded into any Garmin GPS, even the so-called map models. You can however, load points and routes from the maps, in to any Garmin GPS. You can do this manually, or by computer link, using Fugawi or Oziexplorer programs. Raster maps are produced in Australia by Geoscience, Sunmap and Maptrax. Memory-Map also uses raster maps. Vector mapping: GPS, whether hand-held, marine, or in-car, is used mainly to guide you to a destination. Vector mapping is more effective in GPS, because it is searchable for names and places.Vector mapping is also used in GIS products. All the cartography, marine and land, supplied by Garmin, is in vector form for more effective "find" and guide functions. Vector mapping is released by Garmin worldwide under the Mapsource brand. Other vector mapping is supplied by Geoscience and Johnny Appleseed GPS.

Maps can be in two forms- digital (on a computer or GPS screen), or on paper, the more traditional mode. Either way, the following information applies.

1. Maps are produced to model information on the earth's surface.	4. Naturally, the datum or origin on the map must be the same as the GPS.
2. Maps are produced to scale, so that positions on maps have the same relationship in scale, as the real objects.	5. Johnny Appleseed GPS can ensure that your GPS is set to agree with whatever maps you are using.
3. GPS can display and log real positions on the earth's surface. These positions can then be interpreted on any map.	6. Johnny Appleseed GPS can also show you how to scale, and load or retrieve points between the map and your GPS.

 

NATMAP, DNR, HEMA, and WESTPRINT paper maps, compendiums, and Atlases.
For that round Australia trip, or for local national park information!

List and prices of Maptrax marine, topo, aviation and city map products.

Modern Australian mapping is in full colour, easy to read symbols, and ready to use with your GPS. Mapping is available for the whole of Australia and territories. Staff at Johnny Appleseed GPS can show customers how to relate mapping to GPS- out there when it counts. A simple map reading guide, and map scales make it easy. The only problem still remaining, is how do you fold the d___ thing!

from 1:25,000 9132-I-S copyright CMA NSW.

Remember, if you ever happen to be lost or in danger, with or without a map, an EPIRB will bring assistance fast.

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