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tanaka

Design Shaded Contour Lines (or Tanaka) Maps

The Tanaka method enhances the representation of topography on a map using shaded contour lines. In this simplified implementation of the method, north-west white contours represent illuminated topography and south-east black contours represent shaded topography. See Tanaka (1950) <doi:10.2307/211219>.

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VersionRepositoryFileSize
0.4.0 rolling linux/jammy R-4.5 tanaka_0.4.0.tar.gz 497.8 KiB
0.4.0 rolling linux/noble R-4.5 tanaka_0.4.0.tar.gz 497.6 KiB
0.4.0 rolling source/ R- tanaka_0.4.0.tar.gz 489.8 KiB
0.4.0 latest linux/jammy R-4.5 tanaka_0.4.0.tar.gz 497.8 KiB
0.4.0 latest linux/noble R-4.5 tanaka_0.4.0.tar.gz 497.6 KiB
0.4.0 latest source/ R- tanaka_0.4.0.tar.gz 489.8 KiB
0.4.0 2026-04-26 source/ R- tanaka_0.4.0.tar.gz 489.8 KiB
0.4.0 2026-04-23 source/ R- tanaka_0.4.0.tar.gz 489.8 KiB
0.4.0 2026-04-09 windows/windows R-4.5 tanaka_0.4.0.zip 499.8 KiB
0.4.0 2025-04-20 source/ R- tanaka_0.4.0.tar.gz 489.8 KiB

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