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or you can read the post (05-19-2011 02:13 PM) in this thread Steve
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03-30-2012
10:45 AM
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Henrik Thank you for sharing the problem. It will be fixed in 10.1 and also in 10 SP5 The problem occurs when you have a feature class with an undefined extent. To create a raster one needs an extent. FeatureToRaster and PolygonToRaster now throw an error when there is no extent. In your workflow you'll need to make a decision what to do when a feature class with no extent is created. Possible solutions include, inter alia; - stop processing, or - define an extent and in your case a output raster filled with NoData will be created. Once again, thanks Steve
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03-30-2012
08:41 AM
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Julia Does the raster have statistics ? ( use GetRasterProperties tool and find the maximum value (for example)). If your raster does not have statistics then calculate them. How was the raster created? Steve
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03-22-2012
12:13 PM
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If you have ArcGIS 10, you can also use the Find Identical (http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//001700000054000000) tool -Steve
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03-09-2012
09:01 AM
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and if you had 100,000 datasets.... The script or Modelbuilder can be used if you want to automate the procedure. Steve
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03-01-2012
10:03 AM
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Have you thought of using the RepairGeometry tool ?
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03-01-2012
09:16 AM
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One way would be to iterate through some power values and use the CrossValidation tool to get the RMSE value. The power value associated with the lowest RMSE is the optimal power value.
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03-01-2012
09:13 AM
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Why not use CellStatistics with the ignore_nodata option. Steve
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02-24-2012
12:32 PM
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These are interpolation method dependant. IDW, for example on has error. Kriging has many more. Steve
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02-24-2012
08:48 AM
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Please check the help, below is a snippet from IDW's help. Some input datasets may have several points with the same x,y coordinates. If the values of the points at the common location are the same, they are considered duplicates and have no affect on the output. If the values are different, they are considered coincident points. The various interpolation tools may handle this data condition differently. For example, in some cases the first coincident point encountered is used for the calculation; in other cases the last point encountered is used. This may cause some locations in the output raster to have different values than what you might expect. The solution is to prepare your data by removing these coincident points. The Collect Events tool in the Spatial Statistics toolbox is useful for identifying any coincident points in your data. Steve
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02-24-2012
07:36 AM
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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
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02-23-2012
07:59 AM
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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
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01-06-2012
07:42 AM
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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
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12-02-2011
12:14 PM
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Tim Please apply SP3 and reply to this thread with your findings. Thanks Steve
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12-02-2011
03:45 AM
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Tim What version and which service packs were loaded? Thanks Steve
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12-01-2011
08:43 AM
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