Hi,
Have a look at the overlay() function in the sp-package.
cheers,
Paul
Yong Li wrote:
> Hi ALL,
>
> I want to pick up cells values of a grid (say a RS image) using points'
> positions. For example, I have an image and a point shape file with the same
> coordinate system, then I try to overl
Hi ALL,
I want to pick up cells values of a grid (say a RS image) using points'
positions. For example, I have an image and a point shape file with the same
coordinate system, then I try to overlay points on the image, and want to get
the cell values of the on-point cell and 8 surrounding cells
