Clasure file

In case of a choice of theoretical coordinates from a file of clasure it is necessary to prepare beforehand for each raster a corresponding text file of MET type.

This file should have .met extension, at the first line of a file there should be MET service field.  

Coordinates in a closure file of XY type should be presented in meters on district in right (X Y) system of coordinates.  

The description of coordinates of points should begin from a line containing BEGIN field and should finish by the line containing END field. The description of each point should begin with a line containing # symbol. After a line containing # symbol, a line containing coordinates of a point follow directly.  

At a file there can be service fields:

MET a label of a file beginning (an obligatory field);    

BEGIN a label of the information beginning (an obligatory field);    

# a label of the beginning of new object (an obligatory field);    

END a label of the information's end (an obligatory field);    

XY Rectangular coordinates in meters on district (non obligatory field).    

Service fields should begin from the first position of a line.  

Labels: MET, BEGIN, END are obligatory key fields, the description of objects is divided by # symbol.  

By default (or after occurrence of service field XY) coordinates of points are set in rectangular system of coordinates (after # service field the lines containing pairs of coordinates of object's points in meters) follow.  

Example of a closure file:

MET

BEGIN

XY

#

6811000 13402000

#

6811500 13402000

#

6811500 13402500

#

6811000 13402500

END