Latest Contributions by SteveLynch

Have you looked in the help? http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00310000002p000000.htm If you want additional information on splines I would suggest doing a literature search. Regards Steve ... View more

William What version of ArcGIS are you running? Please set your current and scratch workspace to a location where you have write access to. What format is the raster in, fgdb, grid, tif, img or ? What format are you writing to ? (shapefile, fgbd, ?) Can you try with grid input and shapefile file output ? Thanks Steve ... View more

Once you have exported the shapefile featureclass to file geodatabase do the following use either SelectLayerByAttribute_management or management.MakeFeatureLayer selecting all values = -9999 then CalculateField(�??mylayer�??, �??FieldZ�??, �??None�??, �??Python�??) Steve ... View more

Tim Please apply SP3 and reply to this thread with your findings. Thanks Steve ... View more

Tim What version and which service packs were loaded? Thanks Steve ... View more

Can you try it without altering the Output Extent values, i.e. leave the default extent. Thanks Steve ... View more

What version of ArcGis are you using? Are you inputting a table or a feature class? What is the name of the output? Please attach a screenshot. Thanks Steve ... View more

Please call Customer Services at 800-447-9778 Thanks Steve ... View more

Please look in the help. http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//003100000059000000.htm Steve ... View more

Use Point To Raster, but then only the areas around points will be converted, or make the cell size very very small, but this will not be practical, or shift the input locations. Why do the values have to be the same as the interpolated cell values? Steve ... View more

Yes - Think of the output raster as a point feature class (points are at the cell centers) - input points and equation -  used to make predictions at these "rasterized" points - each output raster cell gets its value from the prediction made at the cell center location Steve ... View more

Are your input points located at the cell centers of your output raster? The cell center is where the prediction is being made. Steve ... View more

Guy We fixed a performance issue in 10SP2. What inputs do you have? Any chance of applying SP3 or sending me the data (slynch@esri.com)? Thanks Steve ... View more

Christi TopoToRaster is based on a 3rd party piece of software, anudem (http://fennerschool.anu.edu.au/research/publications/software-datasets/anudem). It is based on thin plate splines and is in most cases not an exact interpolator. If more than one spot height or contour line is present within a cell then averaging is done. You should therefore make sure that you pick the correct or representative cell size. TopoToRaster is also computationally intensive and the largest output raster is roughly 36 million cells. If a larger raster is required the MARGIN parameter can be used. With all this said, I've had a quick look at the Hawaii contours and some of them are 50 ft apart. Hope this helps. Steve ... View more

You can also, if multiple geostatistical layers are in ArcMap, right click on a geostatistical layer and choose Compare. ... View more