Generates a watershed basin from a drainage direction map and a set of coordinates representing the outlet point of watershed.
Inputs
- the map containing the drainage directions (obtained with Markoutlets, DrainDir, FlowDirections)
- the coordinates of the water outlet (east and north)
- the map containing the channel network (obtained with ExtractNetwork)
Output
- the basin extracted mask (basin)
Notes
The most important thing in this module is to choose a good water outlet. If the coordinates are unknown click with the mouse on the network map ensuring to select a pixel on the extracted network (value 2 in the network map).