topic Re: problem with the dissolve function in Coordinate Reference Systems Questions

problem with the dissolve function

GB — Thu, 02 Nov 2017 16:06:25 GMT

Hi!

I tried to use the dissolve function but that is the output (picture). The input for a map of the world with national borders, and my intention was to create to create the same map of the world without country's boundaries. Thank you.

Re: problem with the dissolve function

JayantaPoddar — Thu, 02 Nov 2017 16:17:15 GMT

If it is meant for Visualization purpose, you could go to symbology of the layer, and choose "No Color" for Outline.

Re: problem with the dissolve function

GB — Thu, 02 Nov 2017 16:53:59 GMT

Cannot you see that the tool created some polygons? I just wanted to have an unique entity,

Re: problem with the dissolve function

JayantaPoddar — Thu, 02 Nov 2017 19:43:40 GMT

When you use Dissolve or a few such Geoprocessing tools on huge datasets, they undergo tiled processing, resulting in such output.

Tiled processing of large datasets—Appendices | ArcGIS Desktop

Dicing Godzillas (features with too many vertices) | ArcGIS Blog

So either you Dissolve the above layer (with tile boundaries) again.

or Merge the features in the layer by selecting all the features.

Re: problem with the dissolve function

GB — Fri, 03 Nov 2017 09:59:33 GMT

Thank you for the suggestion. I attempted to dissolve again, but it was taking too much time so I gave up. I thought I might reduce the quality of the map while keeping the original state's boundaries; what is your opinion?

Re: problem with the dissolve function

JayantaPoddar — Fri, 03 Nov 2017 10:04:27 GMT

I won't suggest compromising with the quality of map.

Try running it using Python Script. That would be faster.

See the code sample for the python script

Re: problem with the dissolve function

JayantaPoddar — Fri, 03 Nov 2017 10:09:14 GMT

By the way, did you try Merge (Editing), as I mentioned above. If not, give it a try. (Keep a backup of the original data before executing Merge).

Re: problem with the dissolve function

DanPatterson_Retired — Fri, 03 Nov 2017 12:33:39 GMT

If the outline of the polygons are bothering you, change the symbology of the patch to have an outline thickness of 0 (zero) in other words, no outline, just a fill color. It might look ok

Re: problem with the dissolve function

JayantaPoddar — Fri, 03 Nov 2017 12:36:51 GMT

That's what I said in my first comment. GB didn't like it.

Re: problem with the dissolve function

DanPatterson_Retired — Fri, 03 Nov 2017 12:41:19 GMT

ahhh missed that! That would be the obvious solution