Latest Contributions by SteveLynch

If you use the Reclassify tool the output will be an integer raster which has a table (categorical values). Or you can convert you raster to a point feature class which has a table (unique values). ... View more

I would use CellStatistics ... View more

Subset Features is designed to do that. ... View more

we fixed a bug in 10.2.1 to throw an error. Please make sure that Tolerance 2 is at least 6 times greater than Tolerance 1. and TopoToRaster does not honor the environment MASK -Steve ... View more

Doug I suggest you look at using KernelInterpolationWithBarriers as it'll also produce an output of prediction standard errors. Steve ... View more

You will only get the exact value if your input point falls on the same location as the cell center. Remember that the interpolation technique is making a prediction at the location of the cell center. From your graphic I don't see that spline prediction = observed value, am I looking in the wrong place? Regards Steve ... View more

You have a typo in the first line, viz., kriging should be Kriging The best way to check for this is, - keep a copy of the xml file that is good - use the CreateGeostatisticalLayer gp tool in ArcMap to verify that the modified xml file is good - do it one step at a time. Steve ... View more

How many rows/columns in the raster you created using PolylineToRaster? and 2m contours mean that vertically the DEM is sliced every 2m. What I'm trying to determine is: a) what is the cell size of the DEM you want to create? b) how did you decide on this cell size? c) given the extent and cell size, what size raster will be created If you want to take this offline please email me at [email protected] and we can post the conclusion to this forum post. Regards Steve ... View more

Misleading error message. Your output raster is too big, make your cell size larger. What version of ArcGIS are you running? and, with the cell size that you are specifying do you know what size raster it'll create (i.e. how many rows, columns)?, use PolylineToRaster using the contours as input and then look at the properties of the output raster. Steve ... View more

Aaron I guess it all depends on the size of your input data, the size of the output and the speed of your computer. I would suggest that you initially use a subset of your data. You may also want to have a look at How large a DEM can the TopoToRaster tool create? Steve ... View more

Suzann For the input point feature class, if you right click and go to Properties and under the Source tab, what do you have for Projected Coordinate System: ? Do the same for the output contour feature class. What happens if you use this input feature class in the IDW geoprocessing tool of Geostatistical Analyst. I.e. Toolbox-> Geostatistical Analyst Tools->Interpolation->IDW and output a GA layer and then convert the layer to raster -Steve ... View more

The TopoToRaster tool was written to create a DEM from contour lines. It takes point, polyline and polygon features as input. -Steve ... View more

Use the geoprocessing tools in ArcMap and look to see if any (or which) of the parameters are different. I.e. repeat your c# steps in ArcMap or you can also, in C# after GACreateGeostatisticalLayer_ga, save the GA layer using the SaveToLayerFile tool and then look at the properties in ArcMap and find out which are different to the one created by you in the Wizard. -Steve ... View more

I agree that you have too few points. You don't need to put points at the corners. In the environment you need to specify an output extent, the default is the extent of the input points. -Steve ... View more

Justin Snap Raster would fix your problem. If you set the output extent it means that there is a good change that the output raster's origin will shift. You can test this, set the output extent = polygon FC and run SA's Plus tool and add 0 (zero) to your raster and see where the output raster draws. Now repeat this and use Snap Raster. Therefore, good idea, set the Snap Raster = input raster when changing the extent. -Steve ... View more