Change of contents of displayed map objects

 Map contents dialog allows to set parameters of map objects selection at displaying:    

- map  layers and object types (localization);

- object  classes;

- map  sheets (Nomenclatures);

- range of object Ids;

- object attributes (semantics);

- spatial object parameters (measurements).

Full list of map layers, object classes, object types, object attributes is defined by Map  classifier.

To set layers and object types for displaying you should open Map contents /Layers dialog and selects needed layers and object types in the lists by mouse.

To select object classes you should open Map contents /Objects dialog and select needed object classes in the list by mouse.

Parameters of selection of graphic objects install the order of search of the objects which are not having the descriptions in the map classifier. Possible variants of selection of graphic objects are listed in the list:  

- Select all objects (all objects available in a map participate in search);

- Select draw objects only (graphic (draw) objects participate in search only);

- Do not select graphic objects (graphic objects are not checked).

For installation of search criterion of graphic objects it is necessary to choose from the list one of listed above lines.

To select map sheets you should open Map contents /Sheets dialog and select/unselect map sheets in the list by mouse.

To set range of searching object IDs open Map contents /IDs dialog and set minimum and maximum ID of map objects.

To set criterion for object displaying based on their attributes open Map contents /Semantics dialog  and set on Selected semantics option. For example if you want to display objects that have absolute elevation > 100m you need to build an expression like this Absolute elevation > 100. To do it use dialog panel consists of three columns: Semantics code name, Condition, Value.

For addition semantic name to the table you must use Add button. In the answer the dialog box Semantics will open, where choice of a semantic characteristic name is doing. On double click of the mouse or pressing Done button  highlighted string of the semantics list is recorded in Semantics Code Name pillar of a bookmark Semantics. At that an equal sign is recorded  in Condition pillar, in Value pillar - the first value of the values classifier, if the values classifier is installed for the selected characteristic. In a case, when there are no values classifiers for selected characteristic or it is necessary to select not the first value of the classifier, the Value pillar requires editing.

Use double mouse click in Value pillar for editing semantic characteristic value. If there are no values classifiers  for a selected semantic in RSC - file the required value is entered directly in 3 pillars of the table. Press Enter key for finish of editing. Otherwise value is selected from the classifier possible values list.

Use double mouse click in Condition pillar for editing selection condition of Semantics bookmark, and then select required conditions from the possible condition list. The meaning of the conditions list signs are following:

! = semantic characteristic value is not equally preset;

* any given characteristic value is allowed;

< semantic characteristic value is less preset;

< = semantic characteristic value is no more preset;

= semantic characteristic value equally preset;

> semantic characteristic value is more preset;

> = semantic characteristic value is not less preset;

x any value is forbidden for given characteristic.

To set selection by spatial object parameters open Map contents /Measurements dialog. Press Selected measurements button. Set type of measurement  (length, perimeter, square), i ts  value and ratio operation (condition). To set condition use Expression panel. Set condition like length < 100 in Single mode or 50 < length < 250 in Range mode.  Two table line of measurements will be used for record of a double inequality : the first string corresponds to the left part of an inequality, second - right.

Set criterions are taken into account by selection only for line and area objects.

Press OK button of Map contents dialog to storage set installations.

You can use Map contents /Models dialog to create several models of object selection (set by dialogs listed above). At fist you must set search objects criteria by circumscribed above way, then press Create button (Models bookmark) and enter a model name. The created model is added to the models list of search (up to 256 models). Selecting this or that model from the list, you can set appropriate sort of objects search to it.

Selection models are saved once MAP 2008 session is over and restored when system starts another time.