The navigation map, the choice of which is no less important than the choice of the navigator itself, is used to show the current location of the user. One of the main criteria when choosing it is the type of terrain in which you have to navigate.
Instructions
Step 1
Navigational maps are divided into two types: vector and raster. The latter are images taken from a satellite or drawn on a computer with the designation of topographic objects. For the ability to determine the location of objects and plot a route, geographic coordinates are "substituted" for these maps.
Step 2
The image displayed on the screen when installing a raster map is very beautiful, with the highest level of detail. However, this requires a lot of space in the device's RAM and on the memory card. To reduce the load on the processor, programs that work with raster maps will have to be installed in parts.
Step 3
Vector maps are a collection of data about the location of various objects: shops, houses, theaters, road junctions, and so on. This information is contained in the tablets that navigation programs work with, converting the data into the final pictures of houses and streets on the screen. Vector maps, with which most navigation devices work, and all auto navigators take up little memory, it is more convenient to work with them. The navigation process will be greatly facilitated by the installation of 2D, 2.5 and 3D maps of this type.
Step 4
The maps of the Belgian company Tele Atlas, on which most of the navigation programs sold in Russia are based, unfortunately, do not cover all of its territory. If any part of the regions of our country is covered by these maps, the information in them turns out to be devoid of not only details, detailing of small roads and settlements, but also relevance.
Step 5
Navitel programs use Roskartografia maps, which represent in detail large cities of the European and Asian parts of Russia. They are regularly updated, their number is constantly growing: about once every six months, Navitel replenishes its databases with a dozen cities.
Step 6
When choosing a map, the main thing is to know where you will most often use the navigator. The city and region you are interested in can be drawn in detail on the screen, and the rest can be presented purely overview. Or the whole country will be shown in relative detail, with minor and major roads. The first is suitable for a city dweller who rarely leaves his area; the latter is for the lover of business trips or the traveler.
Step 7
Pay attention to the quality and frequency of map updates, the level of relevance and reliability of the cartographic base will depend on this. If the update occurs no more than once a year, you will have to waste time not receiving timely information about cleaned interchanges and closed roads.
