GIS Tutorial for ArcGIS Desktop 10.8 by Wilpen L. Gorr & Kristen S. Kurland

Author:Wilpen L. Gorr & Kristen S. Kurland [Gorr, Wilpen L. & Kurland, Kristen S.]
Language: eng
Format: epub
Tags: Geographic Information Systems, Remote Sensing, Data Visualization, Computers and Technology
Publisher: Esri Press
Published: 2020-08-21T17:25:40+00:00

The fishnet process creates a rectangular map layer, but what is needed is a grid cell map limited to the shape of the study area. It is best to leave grid cells whole squares, with some overhanging the study area, rather than clipping them. The model needs two steps to accomplish this. First, you must assign study area attributes to grid cells with the Spatial Join process. Then all grid cells in the interior or crossing the boundary of the study area will have non-null attributes while remaining cells will have null values. Then you can use the Select process with the criterion:

NAME > "

where there are two single quotes after the greater than sign, signifying a null value. The criterion selects all cells having non-null values.

Finally, you can clip the label points using the finished fishnet. Making the final outputs (Fishnet_Finished and Fishnet_LabelPointsFinished) parameters allows the user to rename and save them wherever desired.

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