Map attributes editing
To start layer attribute edition select Attributes Editor (Add/Delete attributes, edit existing attributes) in the Main menu in Map data manipulation section. After that the user will get list of available map sets to edit. To edit attributes of set's layer, it's needed to open Map set information table(2) by clicking on Rectangle arrow button(1) before the map set name. Map set information table(2) provides information about map set's layers such as data base layer identifier, layer name and layer type. Edit attributes button calls page with Main attribute editing menu. Attribute edition is available for vector layers.

Attributes editing
Fig.1

Main attribute editing menu

Attributes editing
Fig.2


A - General information section displays layer name, columns and rows count in attribute table(1) and list of layer attributes(2) with their types.
B - Editing column from attribute table section. In this section user can select column from layer columns list(3) and click on Edit button. This calls Attribute edit page.
C - Adding new columns to attribute table section. To add new column you need to specify new column name(4), select column type(5), specify default value(6) if "Not null" or "Fill with default value" check box(7) is selected. Add column button adds new column to layer attribute table.
D - Deleting columns from attribute table section. In this section user can select attribute(column name) from drop down list(8) and delete it by clicking on Delete buttton.
E - Renaming columns in attribute table section. To rename column select it from "Column to rename" drop down list (9), specify new column name(10) and click Rename button

Attribute edit page

Attributes editing
Fig.3


A - Attribute general information section displays editable attribute name, type and null status information.
B - Layer attributes table with first editable column with attribute to edit. Save input values button saves user's editions of the attribute. Reset input values button resets editions. Cancel button cancels editions and returns to Main attribute editing menu.
C - Condition filters allow to view data according to the specified filter condition for nonstring attributes.