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Posted by Christian Barmala on November 27, 2007, 2:50 pm


Is there a difference between Waypoints and POIs?

I understand that both of them carry longitude, latitude and some
optional information.

Posted by Larry G on November 27, 2007, 9:54 pm


wrote:
> Is there a difference between Waypoints and POIs?
> I understand that both of them carry longitude, latitude and some
> optional information.

Waypoints are lat/longs there are other objects - with more info that
have waypoints as one of the constituents.

so a POI is essentially a waypoint with info about what is located at
that waypoint.

capiche ?



Posted by Ramon F Herrera on November 29, 2007, 12:14 am



> capiche ?

Io capito chiaramente. :-)

-RFH



Posted by Jack Erbes on November 27, 2007, 11:41 pm


Christian Barmala wrote:
> Is there a difference between Waypoints and POIs?
>
> I understand that both of them carry longitude, latitude and some
> optional information.

In the general sense of the usage, the POIs are a interactive database
of all the objects on the mapping other than roads and located along the
roads. Like motels, businesses, etc. If you look at the categories
from the Find menu on a typical GPS receiver you can see that there are
hundreds of categories of POI and many thousands of POI.

The POI that are part of the mapping cannot be edited or added to but
you can add a POI database of your own to some GPS receivers.

A waypoint would generally be a location you previously stored for use
as (and most often called) the destination of a route. If a route has
more than one waypoint, the intermediate waypoints would be locations
you want to pass through en route to the destination.

The terms all blur a little in use and with the propensity of the
various GPS makers to use various names for the same things or to misuse
traditional names for other things. Waypoints are also called favorites
and destinations.

If you look up a POI (a City Hall or Police Department for example) and
then choose to use it as a GoTo destination, then you essentially are on
a route with a single waypoint. But if you look for that destination in
your list of waypoints you'll not find it there. And if you look for
that trip in your list of routes it would not be seen as a route.

But they could be if you chose to place a waypoint at the POI location
and then created a route with that waypoint in it. Is that confusing
enough? :>)

Jack

Posted by Lakro Mani on November 28, 2007, 2:30 am


Normaly there is a limit to 1000 waypoint, but no limit on POI, only memmory
sice
City Navigator Europe do contain more than 6 millions POI

> Is there a difference between Waypoints and POIs?
> I understand that both of them carry longitude, latitude and some optional
> information.


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