Enhancing adaptive composite map projections: Wagner transformation between the Lambert azimuthal and the transverse cylindrical equal-area projections

Bernhard Jenny, Bojan Šavrič

    Research output: Contribution to journalArticleResearchpeer-review

    4 Citations (Scopus)

    Abstract

    The adaptive composite map projection technique changes the projection to minimize distortion for the geographic area shown on a map. This article improves the transition between the Lambert azimuthal projection and the transverse equal-area cylindrical projection that are used by adaptive composite projections for portrait-format maps. Originally, a transverse Albers conic projection was suggested for transforming between these two projections, resulting in graticules that are not symmetric relative to the central meridian. We propose the alternative transverse Wagner transformation between the two projections and provide equations and parameters for the transition. The suggested technique results in a graticule that is symmetric relative to the central meridian, and a map transformation that is visually continuous with changing map scale.
    Original languageEnglish
    Pages (from-to)456-463
    Number of pages8
    JournalCartography and Geographic Information Science
    Volume45
    Issue number5
    DOIs
    Publication statusPublished - 2018

    Keywords

    • map projection
    • dynamic mapping
    • Adaptive composite map projections
    • adaptable projection
    • Wagner transformation
    • Umbeziffern
    • web map

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