topic Re: Removing polygon boundaries permanently in Spatial Data Science Questions

Removing polygon boundaries permanently

RuthHoban — Mon, 22 Sep 2014 10:21:21 GMT

Hi all,

I'm currently using a Fishnet grid to create a model and am joining environmental data layers to the grid using a spatial join in order to assign data to 500x500m2 grids.

I'm having difficulty with with some polygon layers as the data isn't being added to the gird but the polygon boundaries are. You can see this below with a sample of a sediment layer- the yellow symbolises polygon boundaries.

Does anyone know how I can permanently remove boundaries so that I don't continue to have this problem?

Any suggestions would be most welcome.

Thanks,

Ruth

Re: Removing polygon boundaries permanently

NeilAyres — Tue, 23 Sep 2014 07:16:41 GMT

Not sure how you have arrived at the picture you have presented.

But if you are converting various polygon datasets to a raster representation for some sort of SA based overlay analysis or something, why not use the Polygon to Raster tool :

http://resources.arcgis.com/en/help/main/10.2/index.html#//001200000030000000

Use the environment settings, extent and cell size to get the grid you want.

Good luck,

Re: Removing polygon boundaries permanently

DanPatterson_Retired — Sat, 11 Oct 2014 22:25:33 GMT

When you convert the fishnet to a raster, set the fishnet's symbology so that there is no outline, it will just be a filled color so that when it is converted to a grid, the cell boundaries will acquire the values of the cell itself. To do this simply double-click on the colour in the symbol, and set its border to 0 width

Re: Removing polygon boundaries permanently

curtvprice — Mon, 03 Nov 2014 19:28:18 GMT

It looks you you were rasterizing fishnet line (not polygon) features.