computes the corresponding latitude for a given view y coordinate . concode_field_sep float unitsPerInch concode_elem_sep float dotsPerInch concode_elem_sep float originLat concode_elem_sep float dotsPerDeg concode_elem_sep float originLon concode_elem_sep float lonCorr concode_field_sep float getDotsPerDeg concode_elem_sep void adjustTransformation concode_elem_sep void setScreenResolution concode_elem_sep void adjust concode_elem_sep int x concode_elem_sep int y concode_elem_sep float getDotsPerUnit concode_elem_sep void zoom concode_elem_sep float lon concode_elem_sep float computeScale