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Unk
Guest
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 Posted:
Wed Dec 22, 2004 3:22 am Post subject:
jpg to gps? |
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Is there any way to convert a jpg image so that it can be put on a
garmin gps? If so, what all would I need to do this?
Thanks
Dan |
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GSV Three Minds in a Can
Guest
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| Posted:
Wed Dec 22, 2004 4:12 am Post subject:
Re: jpg to gps? |
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Bitstring <uq8hs0p28p9bqfq4vaaes9jpfj696ubb3p@4ax.com>, from the
wonderful person Unk <Unk@cfl.rr.com> said
| Quote: | Is there any way to convert a jpg image so that it can be put on a
garmin gps? If so, what all would I need to do this?
|
You need to load it into Oziexplorer (or similar) and geo-reference it
(i.e. pick 2 or more points and give the real world co-ordinates). Then
you need to trace (manually) all the items you want to load to the GPS,
using something like GPSMAPEDIT (or you can use Oziexplorer itself). And
then you need to compile the resulting 'Polish format' file into a
Garmin .img file using cGPSMAPPER and then you can load it into your
handset using 'Sendmap' (or if you compiled a .tdb and preview .img
file, you can actually use Garmin's Mapsource program).
Expect to take several weeks, going on months, for any reasonably large
area at any reasonable level of detail.
See:
http://www.keenpeople.com/index.php?option=articles&task=viewarticle&arti
d=4&Itemid=3
--
GSV Three Minds in a Can
Outgoing Msgs are Turing Tested,and indistinguishable from human typing. |
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B. Peg
Guest
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| Posted:
Wed Dec 22, 2004 4:45 am Post subject:
Re: jpg to gps? |
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"xImage" from the Garmin download area (bottom of their page) allows you to
put images into newer Garmin units (60x, 76x, Quest, Legend). Mostly the
Splash Screen and Waypoint Images are all you can do though as far as I
recall.
I've played with making my own waypoints with PaintShop Pro 9 and then
loading around 24 of them into the above units. I'm thinking they were
smallish and crude 16x16 pixel and 8 bit color images but they look kind'a
cool once in the GPS. I did notice that some of the Garmin screens take a
different brightness for the image to show up well. The Quest, being mostly
backlighted, needs less brightness and the outdoor units like the 60 series
need more brightness as their displays are not often backlighted during
daytime.
B~ |
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Keith Sheppard
Guest
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| Posted:
Wed Dec 22, 2004 3:30 pm Post subject:
Re: jpg to gps? |
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| Quote: | xImage" from the Garmin download area (bottom of their page) allows you to
put images into newer Garmin units (60x, 76x, Quest, Legend).
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I presume you are talking Legend C here. My monochrome eTrex Legend has no
feature I am aware of which allows upload of raster images.
I shall have a look at xImage out of curiosity but I cannot imagine it's
going to be very useful when the GPS has no control over the projection etc.
used in the graphic image.
Keith |
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GSV Three Minds in a Can
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| Posted:
Wed Dec 22, 2004 4:17 pm Post subject:
Re: jpg to gps? |
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Bitstring <R0cyd.444$3D4.310@newsfe6-gui.ntli.net>, from the wonderful
person Keith Sheppard <keith.sheppard@tesco.net> said
| Quote: | xImage" from the Garmin download area (bottom of their page) allows you to
put images into newer Garmin units (60x, 76x, Quest, Legend).
I presume you are talking Legend C here. My monochrome eTrex Legend has no
feature I am aware of which allows upload of raster images.
I shall have a look at xImage out of curiosity but I cannot imagine it's
going to be very useful when the GPS has no control over the projection etc.
used in the graphic image.
|
I think you/we are at cross purposes - I assumed the .jpg you wanted to
upload was a map of some kind, not just a flash-screen that shows up
when you power the unit on (which is what xImage is good for - that and
custom waypoint symbols).
--
GSV Three Minds in a Can
Outgoing Msgs are Turing Tested,and indistinguishable from human typing. |
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B. Peg
Guest
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Keith Sheppard
Guest
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| Posted:
Wed Dec 22, 2004 8:57 pm Post subject:
Re: jpg to gps? |
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| Quote: | I think you/we are at cross purposes - I assumed the .jpg you wanted to
upload was a map of some kind, not just a flash-screen that shows up
when you power the unit on (which is what xImage is good for - that and
custom waypoint symbols).
|
Yes, after my original posting I looked xImage up on the Garmin web site
(and it wasn't very easy to find) to discover that it is just for GPS screen
capture and transferring waypoint symbols. At this point I lost interest in
it.
| Quote: | I assumed the .jpg you wanted to upload was a map of some kind,
It wasn't actually me who wanted to upload a jpeg. I was responding to a |
post from "B. Peg". However I jumped to the same conclusion as you did.
Keith |
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Unk
Guest
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| Posted:
Thu Dec 23, 2004 3:45 am Post subject:
Re: jpg to gps? |
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I was wanting to replace the mapsource map with a usgs topo that I can
get easily in jpg image. Was hoping there was a way to convert it,
but guess not.
Thanks anyways
Dan
On Wed, 22 Dec 2004 15:57:45 GMT, "Keith Sheppard"
<keith.sheppard@tesco.net> wrote:
| Quote: | I think you/we are at cross purposes - I assumed the .jpg you wanted to
upload was a map of some kind, not just a flash-screen that shows up
when you power the unit on (which is what xImage is good for - that and
custom waypoint symbols).
Yes, after my original posting I looked xImage up on the Garmin web site
(and it wasn't very easy to find) to discover that it is just for GPS screen
capture and transferring waypoint symbols. At this point I lost interest in
it.
I assumed the .jpg you wanted to upload was a map of some kind,
It wasn't actually me who wanted to upload a jpeg. I was responding to a
post from "B. Peg". However I jumped to the same conclusion as you did.
Keith
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Keith Sheppard
Guest
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| Posted:
Thu Dec 23, 2004 5:26 pm Post subject:
Re: jpg to gps? |
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| Quote: | I was wanting to replace the mapsource map with a usgs topo that I can
get easily in jpg image. Was hoping there was a way to convert it,
but guess not.
|
There is a way but, as an earlier poster said, it is largely a manual
process. There are several software packages around to help you do it (I
even wrote one myself) but they work by allowing you to trace over the image
to mark out every road, river, village etc. that you want in your map.
The reason you can't just upload the jpeg is that a jpeg uses completely
different image technology from the map in your GPS. A layman's approach
might be to think of it this way. A jpeg is a picture. You see a road on
the jpeg because there just happen to be a whole load of dots which are the
same colour and in a line. Your human brain perceives this as a specific
entity but there's no information in the jpeg image which says that a road
called the A30 runs from this coordinate to that one.
The GPS needs a map which is made out of specific named objects with clearly
defined coordinates. The mapping software available allows you to create
the latter from the former, but only using your human perception system as
part of the process.
Keith |
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Alun Saunders
Guest
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| Posted:
Thu Dec 23, 2004 5:38 pm Post subject:
Re: jpg to gps? |
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Keith Sheppard wrote:
| Quote: | The reason you can't just upload the jpeg is that a jpeg uses completely
different image technology from the map in your GPS. A layman's approach
might be to think of it this way. A jpeg is a picture. You see a road on
the jpeg because there just happen to be a whole load of dots which are the
same colour and in a line. Your human brain perceives this as a specific
entity but there's no information in the jpeg image which says that a road
called the A30 runs from this coordinate to that one.
The GPS needs a map which is made out of specific named objects with clearly
defined coordinates. The mapping software available allows you to create
the latter from the former, but only using your human perception system as
part of the process.
|
Surely that all depends on what exactly you want to do with it? For
hiking purposes you don't want or need autorouting, but something as
basic as a simple calibrated raster topographic map with your current
position and breadcrumb trail could be very useful. I'm thinking of a
sort of ruggedized OziExplorer CE type of device. I'm sure it wouldn't
be too difficult to implement something like this on the upper range
colour display GPS's like the 60C(S) or eTrex color would it?
Note that I'm writing this from a European (or more specifically UK and
Ireland) perspective, where there are no half way decent maps available
for any of the Garmin mapping GPS's that would be useful for hiking
purposes.
--
Alun |
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H.W. Stockman
Guest
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| Posted:
Fri Dec 24, 2004 2:25 am Post subject:
Re: jpg to gps? |
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"Alun Saunders" <notalun@notsaunders.net> wrote in message
news:10slf1fb005kl72@news.supernews.com...
| Quote: | Keith Sheppard wrote:
[...]> > The GPS needs a map which is made out of specific named objects |
with clearly
| Quote: | defined coordinates. The mapping software available allows you to
create
the latter from the former, but only using your human perception system
as
part of the process.
Surely that all depends on what exactly you want to do with it? For
hiking purposes you don't want or need autorouting, but something as
basic as a simple calibrated raster topographic map with your current
position and breadcrumb trail could be very useful. I'm thinking of a
sort of ruggedized OziExplorer CE type of device. I'm sure it wouldn't
be too difficult to implement something like this on the upper range
colour display GPS's like the 60C(S) or eTrex color would it?
|
There are many PDA-based GPS systems that do just that. But they have a
faster processor, and lots more storage than the 60c/s. USGS raster maps
take a fair amount of space, even when compressed; typically one loads a
fairly restricted region (maybe 10 or 20 quads) into the PDA before each
hiking trip. PDAs are still fairly fragile, heavier than handhelds, and
rarely have more than 4-6 hours of battery life (for the full-features color
models). |
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Unk
Guest
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| Posted:
Fri Dec 24, 2004 3:38 am Post subject:
Re: jpg to gps? (0/1) |
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I dont need the auto routing or anything like that in the map, so the
map dont need integrated information. It just needs to be an image
that I can use as a reference to show my positionand where the trails
are.
I just read something interesting from one of my fellow Jeep club
members. Here is a clip.
| Quote: | Attached is a screen capture of the bombing range area.
This is from Ozi Explorer. The one is a home made map from
scanning the map available at the visitor center. The other is a
USGS TOPO mpa. As you can see they are more detailed than
what is supplied by the GPSr manufacturer.
Note, the pictures Brain and I uploaded have lost some detail in
the transfer. But the difference between OEM maps and 3rd part
is evident.
The red line is the track of one of the trail rides we did this year.
Also noted are waypoints. When actually traveling the program
scrolls the map to keep you centered.
|
I am also including the two screen caps.
I havent talked to him about OziExplorer yet. If this is what it will
take to get what I want, I guess I will need to use my laptop for the
gps screen. Still havent got around to getting a USB to rs232 adaptor
yet.
On Thu, 23 Dec 2004 12:38:05 +0000, Alun Saunders
<notalun@notsaunders.net> wrote:
| Quote: | Keith Sheppard wrote:
The reason you can't just upload the jpeg is that a jpeg uses completely
different image technology from the map in your GPS. A layman's approach
might be to think of it this way. A jpeg is a picture. You see a road on
the jpeg because there just happen to be a whole load of dots which are the
same colour and in a line. Your human brain perceives this as a specific
entity but there's no information in the jpeg image which says that a road
called the A30 runs from this coordinate to that one.
The GPS needs a map which is made out of specific named objects with clearly
defined coordinates. The mapping software available allows you to create
the latter from the former, but only using your human perception system as
part of the process.
Surely that all depends on what exactly you want to do with it? For
hiking purposes you don't want or need autorouting, but something as
basic as a simple calibrated raster topographic map with your current
position and breadcrumb trail could be very useful. I'm thinking of a
sort of ruggedized OziExplorer CE type of device. I'm sure it wouldn't
be too difficult to implement something like this on the upper range
colour display GPS's like the 60C(S) or eTrex color would it?
Note that I'm writing this from a European (or more specifically UK and
Ireland) perspective, where there are no half way decent maps available
for any of the Garmin mapping GPS's that would be useful for hiking
purposes. |
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GSV Three Minds in a Can
Guest
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| Posted:
Fri Dec 24, 2004 4:06 am Post subject:
Re: jpg to gps? |
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Bitstring <10slf1fb005kl72@news.supernews.com>, from the wonderful
person Alun Saunders <notalun@notsaunders.net> said
<snip>
| Quote: | Surely that all depends on what exactly you want to do with it? For
hiking purposes you don't want or need autorouting, but something as
basic as a simple calibrated raster topographic map with your current
position and breadcrumb trail could be very useful. I'm thinking of a
sort of ruggedized OziExplorer CE type of device. I'm sure it wouldn't
be too difficult to implement something like this on the upper range
colour display GPS's like the 60C(S) or eTrex color would it?
|
You (well, Garmin) could do it (heck PDAs already do it) but you don't
get much colo(u)r map for your money - the 1:25k OS maps code out at
about 30kbytes per Km^2 (as GIFs), so you might just get 50*50km square
in to your 60C (which means you could start from the middle and walk out
in about 4-5 hours). You really need some sort of hard drive, and a big
big battery pack.
| Quote: | Note that I'm writing this from a European (or more specifically UK and
Ireland) perspective, where there are no half way decent maps available
for any of the Garmin mapping GPS's that would be useful for hiking
purposes.
|
Tell me about it. Garmin still claim to be negotiating with the bandits
at the OS, so maybe they'll eventually offer something you won't want to
pay for. Hopefully better than the Magellan UK topo maps, which manage
to omit a large %age of the footpaths. In the meantime, feel free to
roll your own (if you want to walk the Clee hills in Shropshire I'm
about half done already .. down to the stile/gate and waymark level,
which the OS/Garmin are never going to get to. 8>.)
I eventually figured out how to take a track file (.plt from
Oziexplorer), feed it back through Mapedit and cGPSMapper to get
something you can load as a map object. Of course that's only useful the
second time (or if someone else has been there first).
--
GSV Three Minds in a Can
Outgoing Msgs are Turing Tested,and indistinguishable from human typing. |
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Peter
Guest
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| Posted:
Fri Dec 24, 2004 4:54 am Post subject:
Re: jpg to gps? |
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GSV Three Minds in a Can wrote:
| Quote: | I eventually figured out how to take a track file (.plt from
Oziexplorer), feed it back through Mapedit and cGPSMapper to get
something you can load as a map object. Of course that's only useful the
second time (or if someone else has been there first).
|
Is there a description anywhere of how to do this in a way that lets
you load objects like that together with regular MapSource files
so the trails get added to the MetroGuide or CitySelect/Nav street maps? |
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H.W. Stockman
Guest
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| Posted:
Fri Dec 24, 2004 6:58 am Post subject:
Re: jpg to gps? |
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"Peter" <prathman@comcast.net> wrote in message
news:41CB5AC7.1020308@comcast.net...
| Quote: | GSV Three Minds in a Can wrote:
I eventually figured out how to take a track file (.plt from
Oziexplorer), feed it back through Mapedit and cGPSMapper to get
something you can load as a map object. Of course that's only useful the
second time (or if someone else has been there first).
Is there a description anywhere of how to do this in a way that lets
you load objects like that together with regular MapSource files
so the trails get added to the MetroGuide or CitySelect/Nav street maps?
|
http://groups.yahoo.com/group/map_authors/
if you join
http://groups.yahoo.com/group/GarminGPSMAP60C_60CS/
....search the archives for "scan" and "mapsource."
The process is hard -- if you want to make your own objects. On the other
hand, you can upload 20 "tracks" of 500 points apiece (created in something
like MapTech, DeLorme or ExpertGPS) to represent roads, streams, ridgelines,
etc. |
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