1 Attachment(s)
US Inland Detail Map with Imagery will NOT show detailed maps in MapSource
Looking into the details in the map tiles for "US Inland Detail Map with Imagery" gives that there's just a lot of imagery/bitmap data. Not very well suited for MapSource.
Quote:
File: J:/Garmin/gmapprom.img, length 1692663808
Header: 24.01.2008 05:05:14, DSKIMG, xor 00h, Ms 0
Mapset: US Inland Detail Map with Imagery (3.00)
fat: 1000h - 1200h - 30000h, block 32768
maps: 256, sub-files 260
Sub-file fat length
00207615 GMP 1200h 21677243
GMP: TRE RGN LBL DEM
map 7757d0 (7821264)
date 23.01.2008 18:43:46
priority 28, parameters 0 6 31 65
levels [17,18,19,20,21,22,24], zoom [86,5,4,3,2,1,0]
N: 34.000025, S: 31.999998, W: -96.000037, E: -93.999968
Inland Detail Map
Copyright 1995-2008 by GARMIN Corporation.
CP 1252, American
Bitmaps 204, size 14089986 (4)
DEM layers: 2, N: 34.000117, W: -96.000119
...
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It's possible to create a preview map for MapSource but it should have special more targeted settings for N/S & E/W. But that is anyway rather meaningless since there will not be any detailed maps when you zoom in.
The reverse engineering of gmap****.img to MapSource is more or less obsolete now when BaseCamp can read *.img files directly from removable media. Putting the "gmapprom.img" for "US Inland Detail Map with Imagery" on a USB stick in the Garmin folder works rather fine. At some zoom levels there's a mixture of picture data and map vector data.
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