Calculation of polygon area

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ic_8434 This mode allows to calculate the area of a polygon constructed by the operator.

The construction of a polygon is made by selection of base points by the left mouse button clicking. The straight line is constructed between two sequentially selected points. The polygon always remains selfcontained. It is possible to select a classification code (conventional image) and to write down the constructed line as map object by Create by reference editor mode.

The polygon constructing is finished at Left mouse button - Right mouse button clicking, its  final area is deduced  into result window.

It is necessary to press a combination of keys Ctrl - Right mouse button for cancellation the started process or for unmarking the constructed polygon.