The input that defines the boundaries of the zones, or areas, that will be summarized. The parameters for this tool are listed in the following table:Ĭhoose area layer to summarize a raster layer within defined boundaries If unchecked, all features in both the input layer and the layer to be summarized will be analyzed, even if they are outside the current map extent. If Use current map extent is checked, only those features in the input layer and the layer to be summarized that are visible within the current map extent will be analyzed. For such cells, the zone value is determined by the point with the lowest ObjectID field (for example, OID or FID). If the zone is a point feature, it is possible to have more than one point contained within any particular cell of the value input raster. In this case, determine an appropriate raster resolution that will represent the detail of your raster or feature zone input, and use this resolution as the cell size of the raster analysis settings of the environment. If the zone does not overlap with the cell center of the value raster, the zone will become NoData. Either of these cases will trigger an internal resampling before the zonal operation is performed. If the cell size is the same but the cells are not aligned, the value raster will be used as the snap raster internally. When the cell size of the zone and the value raster is different, the output cell size will be the Maximum Of Inputs value, and the value raster will be used as the snap raster internally. When the zone and value inputs are both rasters of the same cell size and the cells are aligned, they will be used directly in the tool and will not be resampled internally during tool execution. If the zone is a feature, it will be converted to a raster internally using the cell size and cell alignment from the value raster. Given a layer of parcels in a county and a layer of city boundaries, summarize the average value of vacant parcels within each city boundary.Given a layer of watershed boundaries and a layer of land-use boundaries by land-use type, calculate total acreage of land-use type for each watershed. ![]() Some example application of this tool includes the following: You may not have image analysis privileges, available with the ArcGIS Image for ArcGIS Online license. If you do not see this tool in Map Viewer Classic, contact your organization administrator. It will be available in a future release of This article has been viewed 1,754,078 times.This functionality is currently only supported in Map Viewer Classic. ![]() This article received 26 testimonials and 93% of readers who voted found it helpful, earning it our reader-approved status. WikiHow marks an article as reader-approved once it receives enough positive feedback. There are 8 references cited in this article, which can be found at the bottom of the page. He holds a BA in Communications and TV from The University of Southern California and an MEd from California State University Dominguez Hills. Perkins creates and presents teacher workshops that integrate the U.N.'s 17 Sustainable Development Goals in the K-12 curriculum. As a teacher leader and consultant at California State University Long Beach's Global Education Project, Mr. Richard is a fellow at the National Writing Project. With over 24 years of education experience, he gives teachers tools to teach writing to students and works with elementary to university level students to become proficient, confident writers. Richard Perkins is a Writing Coach, Academic English Coordinator, and the Founder of PLC Learning Center. This article was co-authored by Richard Perkins.
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