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Messages - Boyd

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Map Making Support / Re: GM contours
« on: February 28, 2009, 02:34:55 PM »
Once GM completes contours how do I determine which are minor,intermediate or major? Or does it matter in the end product?

I honestly don't think it matters. When you export the contours as an .mp file they will be properly flagged by Global Mapper. Have you seen their tutorial here?


Note how the major and minor intervals appear in the screenshots from both Global Mapper and the GPS itself on pages 21 and 25. I would not get discouraged by the postgis issue. I'm making my own maps and have not needed it. The only thing which may be an issue is processing POI data from the census bureau.

But Global Mapper can do almost everything else for you using the powerful search function and the MP_TYPE field which gives you control over what kind of lines/points/polygons will be used on the GPS; this is also covered in the tutorial at the above link.

GPSr Units / Re: Sony NV-U44
« on: February 28, 2009, 10:35:07 AM »
The Sony GPS'es are not compatible with Garmin maps unfortunately. You  might try these places for discussion:


General Discussion / Re: using img files
« on: February 28, 2009, 10:31:30 AM »
<sigh>I'm stunned that there is no readily available freebie utility that will show you what the heck is in that there nnnnn.img file.

GPSMapEdit (as per my link above) is the program which can do this and you can use the freeware version. I'm stunned that you didn't even try this before reaching such a conclusion. ;)

To use MapSource, first download the free training center software here:


That will install a crude basemap on your computer. Now try to install Mapsource again. It will see the training center basemap as a "product" and you will be all set. Inside mapsource there is a dropdown menu to choose maps. See if it lists City Navigator as an option. If not, then go back to garmin.com and see if you are able to download the 2009 map update again. That will install the City Navigator maps into Mapsource.

I think the "gotcha" is that Mapsource has to first be installed on your computer. If it is, then when you download a map update it is installed to work on both the GPS and your computer.

General Discussion / Re: using img files
« on: February 27, 2009, 04:30:03 PM »
any freebie / shareware software out there that would allow me to look at .img map files?

GPSMapEdit will open .img files.


Map Making Support / Re: Alternate types depending on zoom?
« on: February 25, 2009, 09:42:59 AM »
So I think its a built in function of Garmin that it automatically decides whether or not to display it.

This is true on the Nuvi, however handhelds - as well as the old StreetPilot 26x0 series - have a series of preference settings where you specify at which zoom level different map features are shown and you can also choose what size text (or none at all). I really wish Garmin would include these in some kind of advanced menu on the Nuvi's.

Here are some of the choices on the Oregon; other handhelds are similar

General Discussion / Re: using img files
« on: February 25, 2009, 09:35:22 AM »
Mine is permanently muted - I couldn't even tell you what the voice sounds like. Guess it's just my quirk, but I don't like machines that talk. A GPS should just shut up and show me where I am or where I'm going.  ;D

The 500 series is pretty odd and personally wouldn't interest me. For example, there is no way to lock the screen so it doesn't accidently get activated in your pocket. That is a major flaw for a touchscreen GPS designed for hiking. Even the cheapo Nuvi 205 has a sliding switch to lock the screen, and the Oregon has a button to lock the screen.

The 500 is also lacking just about all of the advanced menu options you would expect from a handheld. It's main advantage would be the preloaded US Topo maps and the fact that it's waterproof. Other than that, you're basically getting a Nuvi without text to speech. $270 is a pretty good price though.

General Discussion / Re: using img files
« on: February 22, 2009, 10:47:48 AM »
is there software to created your own route on the pc and download "and this is how I want to get there" to the gps unit?

Yes, there is MapSource for the PC and RoadTrip for the Mac which will allow you to plan a route and transfer it to the GPS. However, if you're using a Nuvi 350, this won't work. You need a GPS which can handle multi-stop routing and the only Nuvi series which can do that are the ones whose models begin with the number 5, 7 and 8 (eg: 750, 885, etc). You will also need to install the City Navigator maps on your computer, and they are distributed separately from the GPS itself.

GPSr Units / Re: Nuvi 5000 startup question
« on: February 21, 2009, 11:29:17 AM »
That is some crazy resolution, blows my nuvi 250w and 255w out of the water :-P

Screenshots of my map... note same zoom settings.

GPSr Units / Re: Nuvi 5000 startup question
« on: February 21, 2009, 08:31:39 AM »
I have owned a Nuvi 5000 for over a year and have used every imaginable kind of map on it. Does that make me an expert?  ???

Just contact Garmin tech support. It sounds like you have a hardware problem. This has nothing to do with third party maps, so don't even mention that.

BTW, the Nuvi 5000 is really the ultimate automotive unit for using third party maps. Screen resolution is 800x480, almost three times as many pixels as their other widescreen models. Doesn't help much with garmin's own maps, but you can take advantage of this when making your own. If you define lines and points as 1 pixel wide, you get a really fine level of detail. Contour lines looks great and don't clutter the image.

Also, custom polygon types are rendered much more nicely. The pattern fills are done on a pixel by pixel basis, so having more pixels renders them really nicely.

GPSr Units / Re: Help getting map from Nuvi 5000 into MapSource
« on: February 20, 2009, 02:55:58 PM »
If that doesn't work for you you can download GoogleEarth v5.xx and plan your trip there. Export the waypoints for your trip, and send them to your GPS. It has the same NavTeq road data as a nüvi 5000

I don't think so, unless something has changed recently. Google formerly had Navteq data but switched to Teleatlas recently: http://www.engadget.com/2008/07/02/eu-approves-nokias-acquisition-of-tele-atlas-no-one-surprised/

GPSr Units / Re: Nuvi 5000 startup question
« on: February 20, 2009, 02:48:47 PM »
That is definitely not normal. Those settings should be retained. Since you said this was a new unit, I suggest that you call or e-mail Garmin tech support.

General Discussion / Re: 3-D maps
« on: February 20, 2009, 02:47:39 PM »
That is how it works on my Oregon 400t which has all of US Topo 2008 pre-loaded. But you must set the map draw priority such that your map draws on top of the US Topo. Fortunately for me, this seems to be the default with both Mapwel and cgpsmapper.

So when you're viewing the area in your map, the DEM data from US Topo will be rendered on the map. But I really wish we could control the style/color of the rendering. Depending on the elevations, it can make your map a little hard to read because it's rather dark.

BTW, this also works with City Navigator. You will get DEM shading on those maps too if you enable US Topo.

Map Making Support / Re: Processing Contours w/ Global Mapper
« on: February 20, 2009, 02:43:21 PM »
I am a Windows Novice - usually work with MacOSX, Linux, Unix - except for mapmaking. I have also noticed bogus "not responding" messages with Global Mapper and Mapwel, although I don't get them unless I try clicking on something in the program while it's busy.

Again, I'm just not very experienced in these things, but a single core CPU with 1GB memory sounds a little lean for some of the heavy data crunching that Global Mapper does.

General Discussion / Re: 3-D maps
« on: February 18, 2009, 04:27:36 PM »
Yeah, it really is too bad that we don't know how to roll DEM into our maps yet. However, if you have one of Garmin's topo products and you make your map cover it up, you can enable both maps and the DEM shading will be rendered on your own map.

I have only tried this in 2d mode, and it works fine for that on my Oregon 400t. Not sure if it would also work for 3d but guessing that it might. OTOH, personally I find the 3d mode on the Colorado and Oregon pretty useless.

Now we also know the the new Colorado and Oregon system software supports raster maps too, but there is no software yet which enables us to use this feature in our own maps either.

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