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tanaka

Design Shaded Contour Lines (or Tanaka) Maps

v0.4.0 · Nov 28, 2023 · GPL-3

Description

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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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
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r-release-macos-arm64 OK
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Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (1)

imports

Dependency Network

Dependencies Reverse dependencies terra sf mapiso maplegend cholera tanaka

Version History

new 0.4.0 Mar 10, 2026
updated 0.4.0 ← 0.3.0 diff Nov 27, 2023
updated 0.3.0 ← 0.2.0 diff Jul 3, 2022
updated 0.2.0 ← 0.1.3 diff Jan 6, 2022
updated 0.1.3 ← 0.1.2 diff Apr 13, 2020
updated 0.1.2 ← 0.1.1 diff Mar 22, 2020
updated 0.1.1 ← 0.1.0 diff Oct 6, 2019
new 0.1.0 Mar 7, 2019