Problem with creating a Fishnet

Lucy · ‎11-13-2022

Hi,

I am having trouble with producing a fishnet for a sampling area that I want to produce sampling points/locations for.

I have used a polygon (in NZTM coordinates) as the extent (polygon of the boundary of the sampling area). I have also set the cell size width and height at 70m and this is the distance I want between sampling locations.

This seems to make a box to the side of the boundary and no fishnet? Screenshot attached.

Any help would be appreciated. Thanks.

DanLee · ‎11-15-2022

Hi DanPatterson,

I made a copy of the shapefile to testEdit, added it to the map, added a field and calculated a value of the new field without saving the change. The tool warned about the pending edit but ran successfully because the tool doesn't use any feature information from the template feature class. I used 100 and 100 for cell width and height this time.

JcDuB · ‎03-18-2023

Hi Dan, I am having the exact same issue. The fishnet is a single cell the size of the boundary with no cells within, the attribute table only has 1 polygon. Could you explain your solution for me please? I don't understand what you mean by "added a field and calculated a value of the field" Do you mean added a field to the attribute table, and what did you calculate? Your assistance is much appreciated! Thanks.

DanLee · ‎03-20-2023

Hi JcDuB,

If you have read the entire conversation, you will see that I was responding to DanPatterson about having pending, unsaved edit while running Create Fishnet tool. What I did - "added a field and calculated a value of the field" - was just to create an unsaved edit. It has nothing to do with getting just 1 polygon.

It's more likely that you need to understand your data area/extent and use the right cell size or cell count. See the details in the entire conversation here. Hope that helps.