Preliminary actions

Before start of construction of isolines (Execute button) it is necessary to execute some preliminary actions.

1.  To set a name of a target file. By default it is formed on the basis of a name of an initial map, but at desire the name of a file and its location can be changed, using a window of input and the button near to it.

2.        To choose parameters of construction of isolines.

3.        Originally parameters are set by default, but frequently there is a necessity to change them.

4.        To set the filter for picket points with the semantic information interesting for the user. If on a map the picket points have been preliminary marked (allocated) by means of the editor the construction will be done on the specified set of pickets. The information about quantity of the allocated pickets is shown in corresponding elements of dialog. You can use this list of objects or change it, using Filter button.

5.        To specify location of the characteristic of construction (in semantics of picket points or in a field of a database table). At a choice of location «to take from the table of a database» it is necessary to specify a name of the table and to choose from the list of fields of the table the field in which there is a characteristic of construction. At a choice of location of the characteristic «to take from semantics of objects» it is necessary to choose from the list of semantics the semantics, which is the characteristic of construction.