From Projection Theory to XR: Cartography Between Precision, Perception, and Immersion

13 authors, highlights the thematic breadth and innovative potential of contemporary cartography.The range of contributions extends from classical projection theory and empirical investigations of cartographic design to questions of immersive spatial construction and perception, digital game worlds, and epistemological reflection.Once again, cartography emerges as an interdisciplinary science that encompasses mathematical precision as well as visual communication, technological innovation, and strong societal relevance.The study by Jochen Schiewe, Kiza Hamann, and Duan Petrovi investigates the design of color schemes in temperature maps.The study focuses on questions of intuitive comprehensibility, color differentiation, and usability for people with color-vision deficiencies.Based on analytical and empirical investigations, the authors develop a new proposal for the cartographic representation of temperature values.Thomas Grndemann and Dirk Burghardt address the visual exploration of complex user groups in geosocial media.With the "FacetWheel," they introduce an interactive visualization method that enables the spatial and temporal analysis of multidimensional attribute combinations.The contribution demonstrates impressively how cartographic approaches can support the structuring and interpretation of large socio-spatial datasets.Krisztin Kerkovits presents a new low-distortion auxiliary sphere for regional map projections.The aim of the contribution is to develop a projection with minimal linear distortions within regionally limited spaces.In doing so, the study builds upon classical questions of mathematical cartography while further developing them for contemporary requirements.