RASTER CELL X/Y VALUES

Question

Hi,

I'm trying to calculate the area of multiple rasters on a cell by cell basis, that is from decimal degrees to square meters.
I've put together an equation that calculates that (see attachment) but as I'm very new to python I'm having difficulties trying to get the X Min, X Max, Y Min, Y Max values for each cell into the equation.

Any tips and trick that I can use to accomplish the task would be greatly appreciated.

Thanks

Toni

Equation.pdf

anTonialcaraz · Answer

Thanks a lot Jake. That was very useful.

Toni

jskinner · Answer

Hi Alcaraz,

You can use the Fishnet tool to create a polygon fishnet using the extent and cell size of your raster.  You can then use the Search Cursor to return the xmin, ymin, xmax, and ymax of each polygon.cursor = arcpy.SearchCursor(fc)
for row in cursor:
    print row.Shape.extent.XMin, row.Shape.extent.YMin, row.Shape.extent.XMax, row.Shape.extent.YMax

del cursor, row

anTonialcaraz · Answer

Thanks a lot James. I had already considered this option.
Problem is that when I convert from raster to polygon some cells get merged together so I would lose the true area of several cells and I do need to get the area right for each cell prior to calculating volume.

Thanks

toni