How to calculate the Z value in Arc GIS 10.0 when the x,y value is provided. I have tried calculating it but it turns out to be in correct.
X and Y are used to denote position in a GIS...You can't calculate Z... which I presume you mean height or any other parameter... from position solely
Dan is correct. You can calculate it by using a Digital Elevation Model (DEM) or a National Elevation Dataset (NED). Simply extract values using a point shapefile and the elevation model raster. This will give you the Z values.
with which tool you can do that?
It's called Extract Values to Points in Spatial Analyst.
Retrieving data ...