Latest Contributions by SteveLynch

your groundwater levels can be converted to height above mean sea-level or depth below the well casing (negative amounts) and these values will be used in the interpolation. ... View more

Jay We need some additional info, please - what version of ArcGIS? - what does different mean, maybe a difference raster (between with boundary and without boundary)? - did you keep the cell size the same between with boundary and without boundary interpolation? - what are your TopoToRaster parameters? - screen shot of your input data including the boundary outline - what is you ultimate goal with this exercise? -Steve ... View more

In that case you could use IDW in Geostatistical Analyst to create a ga layer and then use GALayerToPoints which will use the interpolation parameters in the ga layer to predict a value at exactly the given locations. The ga layer, does no have a cell size, and is held in memory. You could also then do cross validation on your method. ... View more

What about IDW to raster followed by ExtractValuesToPoints ... View more

Allen - What version or ArcGIS? - When did it stop working? - What type of input features, are then points in a shapefile, a file geodatabase or ? - Do you accept all the default parameters? - What happens if you use Copy Features tool to make a copy of these points features? - if Copy Features succeeds, does IDW succeed using the copied features? - Did the reboot help?  -Steve ... View more

to add to what Joshua says about splitting up the long contours... We added a optional parameter to the Contour tool, viz., Maximum vertices per feature. ... View more

Jamal It is a bug in that it is not releasing the lock. I've logged an issue and it'll go into the bucket of things to fix. I can't make any promises that it'll be fixed in 2.6 though. I'm glad that the workaround fixes your problem. ... View more

Jamal In your model, add CopyRaster with the output from TopoToRaster as input and Add to display its output, does it display? I can repro your case and will log an issue. ... View more

...you could create a model with Natural Neighbor and Extract By Mask. ... View more

Jenny The short answer is, run the ExtractByMask tool after you've done the interpolation. The interpolation tools use all the features in the interpolation and then clip the output if you've specified a smaller extent in the environment and most of the tools clip the output based on the mask that you specified in the environment. Mask is a post processing step in the interpolation workflow. The reason that Natural Neighbor interpolation does not support the environment Mask is because it restricts the output to the convex hull around the input points, this is by design. The output does not fill the whole output raster and this may be confusing if the mask were automatically used. Therefore, if you require that your output be clipped to a mask, use the ExtractByMask tool which is what all the other interpolations would do internally. -Steve ... View more

You could use the Con tool ... View more

because it is in the Spatial Analyst module ... View more

The tool is deprecated in 2.5 ... View more

Yes,  1) rename the file from .txt to .asc, or 2) change the filter to files, or 3) paste in the full path and file name into the control on Copy Raster -Steve ... View more

Have you looked at the Multiple Ring Buffer tool. It is actually a script tool that call the Buffer geoprocessing tool.  ... View more