nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Sum of polylines within each Fishnet grid

CeriMiddleton

Hi,

I need to calculate the total length of paths within each 1km square grid (created with the Fishnet tool). The total length will then be used to rank each grid, depending on the total length distance inside.

I have already used the Intersect tool to ensure the paths do not go through any of the grid borders.

How do I now combine the separate lengths within each grid? See example dataset below. I would like it to show:

Fishnet ID :1

Shape_Length: 378

Thanks,

Ceri

(I am using ArcMap 10.4.1)

Trouver plus de publications taguées avec

Accepted answers

DanPatterson_Retired

If you already have the table, aren't you just looking for a way to summarize it?

Summarizing data in a table—Help | ArcGIS Desktop

All comments

MervynLotter

Hi Ceri

You need to do a spatial join,joining up your trails to your fishnet layer. Right-click on fishnet layer, Joins and Relates > Joins ... Ensure you select the "Join data from another layer based on spatial location" option, and "Each polygon will be given the numeric attributes of the lines ..." Ensure Sum is checked on.

If you are in a geodatabase, then just use the Shape_Length field. Otherwise you may need to first calculate feature length of the shapefile segments following your intersect.

DanPatterson_Retired

If you already have the table, aren't you just looking for a way to summarize it?

Summarizing data in a table—Help | ArcGIS Desktop

CeriMiddleton

Thanks Dan, yes this was the best option in the end. Cheers

Rejoindre la conversation

Les membres connectés peuvent publier, suivre les mises à jour, et plus encore. Nouveau ici ? Inscrivez-vous gratuitement.

Liens rapides

Community Help
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.