![]() How to execute a Cross TabulationThe cross tabulation operation allows to compute the intersection areas between the classes of two thematic IL's. To use this function is necessary the project to be active. The operation will be executed between the IL's in the raster format. The data has to have the same horizontal and vertical resolution, the same number of lines and columns ("pixels") and understand the same terrain coordinates. The cross tabulation compares two information layers classes, determining the intersections distribution. The results are presented in two dimensional tables, as shown in the example below.
In the example above it is possible to observe that the intersection area between the "Cerrado" class of the "Land Use" IL with the flat class of the "Geomorphic" IL is 298.56 Km2. The SPRING presents the tabulated values for the number of pixels between the classes and the area values in hectares.
See the example below:
PROJECT;CATEG_Cartatema;PI;WRSTM;UF;DATA;UNID;REPRES;T_PI;T_CLASSES;T_NAOCLASSIF;
TC_CATEG;TC_PI;T_BACKGROUND;forest;not_forest;...
P02_047_00565_300702;Cartatema;classif2002;00565;AC;300702;(kmxkm);repres_matriz;0.0;0.0;0.0; states;states;4.474800;4570.279200;... P02_047_00565_300702;Cartatema;classif2002;00565;AM;300702;(kmxkm);repres_matriz;0.0;0.0;0.0; states;states;21.186000;20956.1760;...
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