Building of height difference matrix

 The task of Building of height difference matrix is intended for comparing the information of two similar height matrices. The input data consists of two open height matrices. The height matrices must be of the same type; otherwise, the comparison cannot be performed.

The task is caused onto an execution by a choice of the corresponding menu item in Run Application.

The parameters for the created height difference matrix are set in the Building of height difference matrix dialog. Initially, the parameters are established based on the map and the most accurate open matrix.

In the dialog, you can change the scale and precision (element size) of the created matrix.

Except for that for an execution of building it is required to specify a file name and to choose the sizes of created matrix. By default the sizes of a matrix are established on the sizes of the first matrix, and in the further they can be changed by a choice of a corresponding fragment of a map.

The target matrix contains relative heights of the second matrix in relation to the first matrix, that is into each element of a target matrix the difference of heights of the second and first matrix (H2 - H1) is brought. If in any point there is no height even in one of matrixes then the information is not brought into a target matrix.

If it is required into elements of the result matrix to place the module of a difference of heights of the second and first matrix | (H2 - H1) | it is necessary to use the check-box Calculate height difference by Modulus.