Zonal Statistics

Instructions

Regional statistics is the use of a certain statistical method (currently supporting maximum, minimum, total, and average values) to perform statistical operations on each cell within the region. In the regional statistics of raster data, there are two datasets involved in the operation, one representing value data (raster data) and the other representing regional data (vector surface data). The result data is the Vector Polygon Dataset. As shown in the figure below, from left to right are the grid data of cultivated land area in a certain province, county-level administrative boundary data, and grid area statistical results. The statistical method used is summation to obtain the total cultivated land area within each county administrative region.

Parameter Specification

Grid area statistics operator: |Parameter Name|Default Value|Parameter Definition|Parameter Type| |:-----|:----|:-------|:----| |RDD to be counted | | RDD to be counted | RasterRDD| |Regional Dataset - Input Connection Information | | The connection information of the regional dataset, the FeatureRDD of the face geometry object (when using it, the vector data operator needs to be connected before reading)| FeatureRDD| |Statistical mode | | Statistical mode, currently only supports maximum, minimum, total, and average values| JavaRasterStatisticsMode| |Region ID field
(Optional) | | The field used to identify a region in a region dataset. If not set, use FeatureID, requiring FeatureRDD to contain FeatureID| String|