Landscape architecture is a complex, multi-faceted field whose practitioners design the spaces in which we live. Landscape modelers now utilise CAD, GIS, and a range of related software to create digital models and produce visualisations of landscapes. Three-dimensional scanning as a visualisation tool involving techniques such as photogrammetry, LiDAR (light detection and ranging), drone-based photography, and other advanced imaging technologies have greatly extended the possibilities for representation and design. In the picture theory of language in the Tractatus Logico-Philosophicus, Ludwig Wittgenstein presented a logic of depiction that described a mapping relation captured by the law of projection. In this paper, I explore mapping space, using case studies in modern landscape architecture to demonstrate how Wittgenstein’s law of projection illuminates the principles involved in visualisation in contemporary landscape architecture.