I am attempting to place a 10X10 grid over 400 30mX30m polygon squares. I have been successful using the Create Fishnet tool in ArcGIS to create a polyline grid feature within a specified polygon but only if the polygon is in its own shapefile. I used the Split Layer by Attribute tool that I found on this site to create 400 separate shapefiles but have not found a way to create a fishnet over each polygon all at once. I am dreading performing this function 400 times.
closed as unclear what you're asking by PolyGeo♦ Aug 17 '16 at 23:36
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I think the tool that you are looking for is Split:
Splitting the Input Features creates a subset of multiple output feature classes.
The Split Field's unique values form the names of the output feature classes. These are saved in the target workspace.
Unfortunately, this requires an Advanced level license, but at Basic and Standard it is possible to implement the same functionality using a search cursor to iterate through a split feature class to perform multiple clips.