3

I'm interested in creating a fishnet where the origin of the fishnet builds from the center of a polygon feature class and builds out around it rather than building the fishnet starting from the lower left corner and only only the Y-axis and X-axis as depicted below. Using, ArcGIS, arcpy, python etc... is doable.

I've tried a variety of approaches, attempting to change the origin, at least think I was able to, or adding some sort of value to "buffer" or "pad" the input extent and or xy values, to no avail. I haven't come across much that can offer me in assistance thus far.

Creating fishnet grid with specified rotation angle in ArcGIS Desktop? includes a response:

However, if you don't want to do the math or need to set your origin at a different point than the CRS origin, there's a step to take prior to starting the fishnet tool to get your y-axis coordinate.

However, I'm not sure how to implement.

I've read through:

enter image description here

enter image description here

PolyGeo
  • 65,136
  • 29
  • 109
  • 338
whyzar
  • 12,053
  • 23
  • 38
  • 72

1 Answers1

3

Mechanical solution. Create fishnet using your dimensions:

enter image description here

Use half of the line between two points as displacement link in spatial adjustment toolbar to get this:

enter image description here

Alternatively use half of the line connecting upper right corners:

enter image description here

to get:

enter image description here

Easy to code.

FelixIP
  • 22,922
  • 3
  • 29
  • 61