I have a point layer, that represents an elevation in that given point. This I need to create a raster/surface/DEM from, preferably by interpolating by Nearest Neighbour method or some way Liniar between the points. However I only need it inside my barrier which I have as a polygon and polyline layer. I'm trying to use Nearest/Natural Neighbour method with the polygon/polyline layer as processing extent, but this doesn't give the "cut" raster result I'm looking for.
I've tried converting my buffer into a raster and add that under Processing Extent Snap Raster, without getting the desired results.
I have ArcGIS Advanced 10.5.1 with Spatial and 3d Analyst.