Calculation of missing heights of points of a line

As a result of an execution of operation there is a calculation of H coordinate at those points of the metrics of object in which H it has not been defined. The given mode can be applied in a following case. Pickets with coordinate description XYH are put on a map. The operator, on the basis of the image of a field book, carries out digitizing of linear objects. Thus, the part of points of the metrics of new object are got as a result of copying the metrics of existing pickets, and other part is got as a result of the any indication by the mouse. For correct construction of a matrix of heights and the subsequent formation of contours it is necessary to define heights in each point of the metrics of linear object. Such objects can be coastal lines, breakages, brows of embankments and dredging, etc.      

The mode functions both for one chosen object, and for group of the selected objects. Missing values of H coordinate are defined by a method of linear interpolation of the next values. If H is not defined in an initial or final point of the metrics it receives value from H coordinate of the nearest point of the metrics of linear object.