I want to make constrained Thiessen polygons in which the process of calculating polygons will stop when the each polygon touches the boundary line/coastline. How can I do it in ArcGIS Pro or in QGIS 3.26?
I want these smaller parts of the red polygon to be part of the blue polygon. I've managed to do it manually with Singlepart to Multipart and than merging them one by one. Is there any way to automate this process?