Transform a grid map into a contour map

[GoldenJiang]

I want to transform this grid map below (polygon, 10 m*10 m) into a contour map and make it less spotty. Is it possible to achieve so?

The value field only contains 10, 20, 30, which represent my management classes (calculated from excel spreadsheet).

[DarrenWiens2 · Accepted solution]

See if this will work for you:

Original:

Point to Raster:

IDW:

[JayantaPoddar]

You could try Focal Statistics (Spatial Analyst extension is required).

How Focal Statistics works—Help | ArcGIS for Desktop

[DanPatterson_Retired]

Jayanta... it won't help much with the chunkiness, that can slightly removed by converting to vector with generalize, then producing the raster at a finer grid cell size. then maybe focal stats to add in some edge randomization

[NeilAyres]

Use the cubic convolution renderer to smooth "blocky" rasters on-the-fly.