The goal of the bachelor thesis is to create an authoring system that will help users to create thematic maps with custom geographical objects and custom generic datasets. This bachelor thesis presents an authoring system that provides tools for creating simple and complex geographical objects. The system allows users to import their datasets, containing generic data, like data about sales, wages, population. The data, contained in mentioned datasets, can be mapped to created geographical object using an identifier. The bachelor thesis is an extension of the project Geovisto, which uses predefined geographical objects for data visualization. The extension will bring the possibility of creating custom graphical features or editing predefined...