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Sum


Unit:SDL_matrix
Class: TMat4D
Declaration: function Sum (LowCol, HighCol, LowRow, HighRow, LowLayer, HighLayer, LowTimeSlot, HighTimeSlot: integer): double;

The method Sum calculates the sum of all matrix elements within a specific area. The range of the matrix elements to be used is determined by the parameters LowCol, LowRow, LowLayer, LowTimeSlot, HighCol, HighRow, HighLayer, and HighTimeSlot. If any of these parameters receives an invalid value, this value is automatically adjusted to the nearest border value.

Setting both the low and the high parameter of a particular dimension (e.g. LowRow and HighRow) to zero values automatically defaults to the maximum range of that dimension (i.e. 1 for LowRow and NrOfRows for HighRow).



Last Update: 2016-Jun-29