The Transition from the Analytic to Synthesis Reasoning in the Maps of Geographic School Atlases for Children - Maps for the Future Children Education and Internet - page 90

graphic would participate as an algorithm for the treatment of the data and for the
legend organization.
The different combinations of the three components I, II and III of the studied
variable are synthesized through dots inside the triangle. Since the variable refers to
areas, each dot of the graphic represents the structure of each one (Beguin and
Pumain 1994 ).
Based on the visual analysis of the resultant point pattern, the areas are grouped
according to categories defined by the position they assume in the triangle. Some-
times the groupings are not that easy to be discerned. A more accurate control is
required. The categories, defined as such, will be later transferred to the map, which
will represent the synthesis of the ternary structures grouped into significant classes.
The triangular graph will be its legend, giving total transparency to the reasoning
undertaken on the map construction.
The following representation shows the synthesis of the Brazil information
displayed in the Fig. 7.1 as “types” of land use structures (Fig. 7.3 ).
Fig. 7.3 The map represents the synthesis of the ternary structures grouped into significant classes
described in the legend