Can anyone help me understand the use of POI's?
I am wrestling with the concept of POI's. Are they used or can they be used as a waypoint to navigate to or do they appear on my screen when I am in close proximity?
What are the uses for them? I have been reading the FAQs but the basic concept escapes me.
For the sake of discussion, let’s say two people use only Sheetz gas and are traveling outside their local area of familiarity. Before leaving, one downloads the Sheetz Stores POI file to his computer and then uploads it to his Garmin GPS. The other person is traveling without a GPS and Sheetz POI information..
When needing gas, the one with the GPS could press "where to, extras, Custom POIs, Sheetz Stores" and find where the closest Sheetz stores are and then select and navigate to one using the GPS. The other individual would be denied that luxury and have to settle for whatever he happened upon.
The other POIs are used in a similar manner.
I am a new user so my explanation may be too basic for you; however, here it is.
POI (Points of Interest) can be loaded into the "Extras" area of your GPS. So the POI files you download from this site are added to the POIs already in your GPS maps.
Once loaded, you can search for these POIs and have your GPS navigate to them (for example, favorite restaurants, entertainment locations, gas stations, rest areas, etc.)
POI files can also contain certain useful information about the points of interest; for example, their address, phone numbers, hours of operation, etc. The extent of this information is at the discretion of the POI file creator.
POI files can also include points that warn you. These points will cause your GPS to warn you as you approach them. For example, some of the most popular POI files are the ones to warn you of Speed Cameras.
POI files can also help hikers. Some files will contain waypoints on a trail which can even include the elevation of the waypoint.
Hope this is helpful.
POI and waypoints both provide the data to marking a point on the earth. The use of the information can be different. Assume you want to travel from A to B and you don't care how you get there. As you are at point A, you only need to tell the unit your destination and it will plot a route. But while driving from work, (point A) to home, (point B) you need to make a stop for fuel. You have a credit card for one particular brand, so you decide to stop and refuel. Programming the location of the gas station into your route has changed the basic A to B route to go by way of the fuel station - i.e. a waypoint on your trip.
The difference being a waypoint can be just an intersection to force a certain routing, or, as in the example a place you intend to return to when needed. So, yes POI can be waypoints in a much larger route or they can be destinations. The only difference is how they are used. I normally don't use intersections as destinations, but I may use one as a waypoint to have me drive through it.
Thinking of them all as a_user said..earth marking points (Latitude X at Longitude Y), will help, maybe.
That's the basis of how your gps does all of what it does. So a waypoint, a POI, an Address book entry, and even a route (with a start, point(s) in the middle to turn or stop, & an end) are the same basic thing.
What makes them 'different' is how your unit organizes them and displays them for you to get at & use, and the 'extra' info that's attached like address, phone, notes, pictures, sounds, etc.
You can enter and store your own from a file or manually right there on your unit, use some of the ones 'built-in' to your map set, and mark (most) any one of them as a 'Favorite' if you use one in particular a lot.
First of all thanks to all the folks who have helped filling in the blanks, What a terrific resource this is.
As a follow-up, can you tell me if: (Here are the conditions)
1. A POI file is loaded on my Nuvi 680
2. The POI is not in some way selected by me.
Will a POI from that file in close enough proximity for that particular screen magnification show up on the moving map?
Again thanks for the help.
Thanks for posting this topic Loco, particularly your last query. I have been stymied somewhat by the same question and will be following it for more expert knowledge.
It appears that the POI file(s) need more specific information in them in order to trigger "alerts" unless you have specifically chosen one as a destination/waypoint.
For example, I loaded up the Chilis restaraunts file, including the icon and .wav file. I drive by one everyday (I can see it from my bedroom) so when loading the POI file I manually chose a 1000ft proximity. When I was out next I watched to see if it "lit up" and nada.
Later I set it as a destination and did hear the alert although no icon (yes, the filenames match the .csv).
This on a nuvi 265WT.
I'm not that deeply into the topics of the last two posts myself (especially on units other than I own) so I'll let the experts reply in due course, but..
These are two slightly different aspects- Alerts & visibility on the map at different zoom levels. FYI
Did your POI file have a companion BMP file having exactly the same name?
A BMP File? Isn't that a windows image file? What affect does a BMP file have on the GPSr?
I am going to assume that a BMP file will display some sort of icon on the map. Is that correct? If that is true, then will a jpeg file do (I use a Mac) or are we limited to BMP?
This looks like anther branch of the POI tree.
the "icon" picture from the BMP file at the coordinates for your POI.
On my 765t, I do not have to be "zoomed" all the way in to see the "icon".
Ok, great. I understand. Thanks for that.
I just googled "POI and BMP" and found this page "http://www.poi-factory.com/node/4537" that helps alot explaining what the BMP file association is to POIs.
On your particular GPSr, does this icon show up when you get within a certain proximity or did you have to select it from your list of POIs to have it show up on your screen?
It's starting to make sense now.
Other than "Speed" and "Redlight" files, are their any other specific .csv or .gpx that I can find for my Garmin?
click on the blue POI Files tab on the top right of the "Home" page.
At the top of the page (right side) click on the "POI files" tab.
Opps, sorry, A little slow this evening.
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