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Maps for Memory Map

 
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farwellbooth
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Joined: Mar 08, 2004
Posts: 62
Location: Portland, OR USA

PostPosted: Thu Mar 11, 2004 9:45 pm    Post subject: Maps for Memory Map Reply with quote

I'm in the US and interested in storing a few areas of 1 state on my PPC. I'm wondering how you select which areas to sync w/ your PPC? Do you have to know all the topo names, the lat. long. or can you just highlight which area on your home PC? I'd like to draw some routes and then just sync the route and a few neighboring miles... Also how much memory do topo maps require? thanks
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MikeB
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Joined: 20/08/2002 11:51:57
Posts: 3859
Location: Essex, UK

PostPosted: Thu Mar 11, 2004 10:42 pm    Post subject: Reply with quote

Depending on the areas that you want maps for they can be bought quite easily from Maptech. You can buy entire states, or you can buy special areas such as the national parks.

The size of the maps really depends on what you want to do. If you just want a small area for hiking then you can just send a section to the PDa which can be of any size up to about 7Mb.

You can also send the entire USGS map to the PDA which are typically between 4 and 8 Mb in size. If you want to use an ares where 2 maps overlap then these can be merged to form a seamless map coving yuo target area.

You can do your planning for route and waypoints on the PC and then transfer them over to the PDA.
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MrT
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Joined: Nov 14, 2003
Posts: 2143
Location: Surrounded by A1, M1 & M25

PostPosted: Fri Mar 12, 2004 8:22 am    Post subject: Very flexible Reply with quote

It is actually possible to scan in any map or aerial photograph and calibrate it. The map has to be scanned and saved as PNG format. You have to have a least 3 grid references and mark these on the map. With the UK version of the program you have to make a text file saying at pixel x,y the co-ordinates are zN yE for each of the known points. Then memory map turns this text file and the PNG image into a memory map QCT file. You also need to set boundaries.

In the US version you can calibrate on screen using markers instead of the text file. Fortunately the US version will work with UK serial/authorisation codes and vice-versa. The only real difference between the two is the checking for OS or A-Z copyrights and on a self scanned map these do not exist.
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MikeB
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Joined: 20/08/2002 11:51:57
Posts: 3859
Location: Essex, UK

PostPosted: Fri Mar 12, 2004 3:08 pm    Post subject: Reply with quote

Rereading your original post I think I misinterpreted your request.

If you want to transfer only a section of the map then what youneed to do is zoom the Memory-map window untill the portion of the map that you want to export is visible then use the PDA->Send Visible map portion to pda menu option. This will create an export file and synch with your PDA.
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