So I had to create a 2kmX2km grid inside the polygon boundary of Ecoregion 135 for a new sampling project. Easy - I’ve made grids in polygons before. No sweat. So I go to make the grid, which I want to run straight N-S, and it ends up like this:
Hm. It’s crooked >_< The fishnet tool was created by a co-worker of mine, and I don’t really understand Python THAT well, so I was just gonna wait until the next day to ask her or my boss. But then, after a night of thinking about it, I realized I should check the projection of the actual boundary shapefile. Every other polygon’s projection, that grids had been straight for, was NAD83 UTM18N in Transverse Mercator. So I checked the tilted grid and BAM, it was Nad83 Lambert Conformal Conic. Heart beating slightly faster with excitement, I opened up the tool to switch projections.
I fixed the projection of the boundary shapefile, then re-ran the fishnet tool, and huzzah, the result:
So if ever you encounter a wonky looking shapefile, be it a line or a polygon, or something doesn’t line up right, make sure the file is in the correct projection!!