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When calculating matrices for a small area in a big street network, it is possible to speed up calculations by restricting calculations to the relevant part + a buffer.

Experience show a factor 2 can be obtained in the best case.


If the buffer gets specified too small, you risk not finding the correct route or even not finding a route at all.


We recommend using 5 km for urban areas, in more rural areas use a larger value.


If you use 0 or a negative value, the whole network is considered (default).


Applies to: Matrix, Matrix2, MatrixDyn, MatrixDyn2, MatrixOut, MatrixDynOut and MatrixPOut.


Default: 0 km


Property MatrixBuffer: double;