The default output raster is ADF, which I’m OK with, and I’m going to click next to Filename to name the raster and click Finish to start the interpolation and save the output raster to the project’s default geodatabase. Finally, Raster Tools writes the output raster in ADF, IMG, and TIF format in personal geodatabases, file geodatabases, or simple file folders. I am also going to leave the extent parameters as-is because I can clip the raster later in ArcMap, if necessary. The data I’m working with is in meters and I’m working on a large scale mapping project, so it makes sense to generalize a little bit and use a cell size of 25. On the third and final page, I can set the output raster’s resolution and extents. I don’t have any breaklines for the area that need to be included in the interpolation, so I’m going to click Next to go to the final page of the wizard. The second page of the Interpolation Wizard showing the search neighborhood options among other interpolation parameters. I think a search radius of 3000 will work well for the data dispersion of this dataset. I am also going to use a custom search neighborhood because I don’t want all of the data to influence the resultant interpolated points. I am working in ArcMap, so I will select the Block Kriging type, which estimates the average value of the cells centered on the grid nodes. Since I selected Kriging for my interpolation method, I have the option to pick Kriging-specific parameters on this page. On this page, I get a quick look at the statistics surrounding the data and a preview of the data point dispersion with an overlapping search ellipse. The first page of Raster Tools Interpolation Wizard.Īfter clicking Next, the second page of the Interpolation Wizard opens. For this example, I am going to select the ever-popular Kriging as my interpolation method. On the right-hand side of the page, I can choose the dataset I want to interpolate, which field I am interpolating, and how to handle duplicate points with the data (if there are any). On the left-hand side, I can choose from any of the 12 interpolation methods, where each have a nice help tip describing the method. The first page of the Interpolation Wizard opens. Now that the elevation data has been added to an ArcMap project, I am going to start the interpolation by clicking the Raster Tools tool bar and choosing Raster Tools | Interpolation Wizard. To start things off, I am going to add some elevation data from Oahu (near Honolulu) to ArcMap. Raster Tools is a wizard-based add-in that walks you through all of the necessary interpolation parameters that have been elegantly laid out on 3 pages, so you have quick access to select an interpolation method, customize neighborhood search parameters, choose output raster extents and resolution, and more.įor today’s blog post, I would like to walk you through an example of interpolating elevation point data using the Raster Tools add-in, so you can see how user friendly and easy this new tool is to use. Golden Software’s new Raster Tools add-in for ArcMap leverages Surfer’s 12 different gridding methods directly in the ArcMap ecosystem to create accurate and precise raster datasets from your point data with only a few clicks. A classified raster layer in ArcMap generated from Raster Tools overlaid with a roads shapefile.
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