User vector map    

The structure of vector maps  allows to store digital representation of real objects  of  region, as well as user-related datasets that can be rapidly vary in time. The samples of such kind of data are information about transportation network, weather forecast, etc.

To store this datasets you just have to add them to additional layers, object types, including attributes in the map classifier. However there are some disadvantages in this way:

- user defined objects located on different map sheets will be separated when saving and its further processing is not convenient in most cases;

- there is no way to view data, put on one map, on the other one for the same region;

- it is necessary to expand and keep up-to date several map classifiers for the maps of different types and scales.

So Panorama allows storing «user» datasets separately of the «main» maps in special «user maps».

User map consists of just one map sheet of unlimited size. The size gets changed as some objects are added / removed to/from map. The User map can be displayed along with vector map and Raster or Matrix maps. The same instance of User map can be visualized on different vector maps and edited by different users.The outcomes of editing for the different users will look equally.

User map has its own classifier not equal to the classifier of the «main» map. The number of displaying user maps along with the main vector map is unlimited.

The creation, upgrade both distribution of area maps and user maps can be fulfilled  separately by different services from different sources.

User map objects can not be linked to the user classifier.The objects of a user map can not have connection with the user's classifier. The graphics representation of the object can be stored in record of the object, that facilitates converting the data from formats DXF, MIF/MID etc. Atribute data can be stored in the external relational data base. Connection with the data base is fulfilled under unique number of the object on a map.

To understand what it is a user map, imagine a pasting of paper maps, on which from above have put a page of a tracing plan. On this tracing plan it is possible to transfer objects from the  map passing from one page to another. On a tracing plan they will be plotted as a unit. Besides it is possible simply to draw on it the abstracted figure, not changing a map. Then this tracing plan can be imposed on other map and to transfer on it site removed from the previous map. The user map is something similar, with that difference, that at a location it on a map of other scale it is automatically compressed or is expanded.