The flow direction layer is a raster layer indicating the direction
of the water flow. The directions are encoded into discrete values. Each
software does that differently.
a directional or circular ramp we can visualise the flow direction.
Creating the colour ramp and interpreting the water flow is difficult.
Therefore, here another, more intuitive visualisation method will be
used. In this tutorial you'll learn how to visualise the SAGA flow
direction layer with arrows indication the flow direction.
After this tutorial you'll be able to: