In: Proceedings of the 5th ICA Mountain Cartography Workshop, March 30 - April 1 2006, Bohinj, Slovenia, p. 121-128.
Also available as PDF document.
1 Abstract
Parallel projections are often overlooked when designing a panorama, since most rendering packages use the central perspective projection as a default. The plan oblique projection, a particular parallel projection, has the interesting property of depicting the plan view of a terrain in correct shape. This paper presents the design and production of a panorama map using the plan oblique projection in the foreground, in combination with a spherical projection of the horizon in the background. This combination of two complementary projections allows the panorama to depict the plan view of an area of interest in an orthometrically correct way, and at the same time to convey a clear three-dimensional spatiality. The paper illustrates the different design and production steps, including the selection of data (SRTM digital elevation models, Geocover satellite images, etc.), the tool for rendering (an in-house development), and the techniques for color correction (Adobe Photoshop).
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