Projeção Cônica

Synopsis: The map is constructed by imagining it designed a cone that surrounds the terrestrial sphere, and then unrolled. Conical projection on the sphere is projected from Ecuador, one of the parallel tangent. The pole is designed thanks to the very shape of the cone. Meridians intersect at the pole, similar to what happens in the field.
Source: Government of the State of Paraná.
URL: http://www.geografia.seed.pr.gov.br/modules/galeria/detalhe.php?foto=432&evento=5