The concept of graph theory described in the previous section is

The basis of many functions listed in table 1. Therefore, the transfer

MatrixM is famous for its importance to further calculation.

However, deriving OFM is not a simple overview.

. The flow directions assigned to the cells are possible as long as they

Downhill community has neighbors. This is not always the case.

unfair

Therefore, the discontinuity of water flow causes the topographic depression and pits of DEM. An algorithm is proposed.

Route crater (Temme et al., 2006), fracture

Obstructing exports violates traffic (Kenny et al., 2008),

Flood filling algorithm and traffic routing

Program, but usually pit filling involves an algorithm to generate a flow path through a unit.

Terrain.

Toolbox provides two routing algorithms. The terrain is flat

(Figure 4). Routeflats is a recursive generation of upstream traffic paths.

Return to flat terrain with single or multiple flow directions,

Although the continuous stream returned by this algorithm

Mode, which is a requirement of computing power, especially when

DEM is equipped with spacious connecting parts with flat terrain, such as

Lake. The cross platform overcomes these problems through direct connection.

On flat terrain and

The unit on the interface between adjacent uphill slopes and the unit at the flat exit (Figure 4). although

Crossflats maintains a connected flow channel without cells.

Considering the flat terrain, please calculate the cost.

On a large flat terrain

The application of main DEM transverse slope is especially a stopgap measure.