Assigning Point Data to Raster Cells

[ShaharLevenson1]

Hello all,

I have a point feature class and a raster.

The feature class has a value field (numerical) and each cell of the raster has several points that intersect with it (fall within it).

I would like to update the value of cells (or generate a new raster) so that each cell's value will now be a mean of all the values of the intersecting points. A cell that does not have an intersecting point should maintain its original value.

How can something like that be done?

Any ideas?

Thanks,

Shahar.

[DanPatterson_Retired]

it sounds like you want to do Zonal Statistics—Help | ArcGIS for Desktop  but don't have a zone file.

How big are your cells in the raster that you have multiple points per cell?

[ShaharLevenson1]

The cells are 30x30 meters (Landsat 8 image cells).

I was thinking about generating a Fishnet using the raster's extent, summarize (Summarize Within??) the points in the polygons, convert the polygon to a new raster and then I can give the old raster values based on the new one.

Problem is, the fishnet will be big. I don't know if ArcGIS can handle it...

[DanPatterson_Retired]

All you need to do is keep the "cells" in the fishnet that there was an intersection with the points for