Scallop Shaped Edges on Interpolation

[BrittanyHoffnagle]

I am trying to use Natural Neighbor Interpolation on a set nodes (100,000's) to create a raster surface that has a grid resolution of 1x1 meter. When I symbolize the raster to be n=0 clear, and n>0 my specific color ramp I created, the edge of the n>0 extent is scallop shaped. Is anyone familiar with this and know how to solve this without using 3D analyst?

[BrittanyHoffnagle]

Clip is an option but could be tedious because there are areas of 0's within the raster as well, so we would want to get rid of the scallop along those edges as well and to create a boundary that covers my entire extent would be a long time commitment. Not sure if there is an easy answer to this. The real question, I guess, is whether is a tool to smooth interpolation edges.

[DanPatterson_Retired]

No... you can define masks or clip to constrain the output results, but there is no 'function' to feather the edges to make them look more pronounced