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tissot  

Tissot Indicatrix for Map Projection Distortion
View on CRAN: Click here


Download and install tissot package within the R console
Install from CRAN:
install.packages("tissot")

Install from Github:
library("remotes")
install_github("cran/tissot")

Install by package version:
library("remotes")
install_version("tissot", "0.2.0")



Attach the package and use:
library("tissot")
Maintained by
Michael Sumner
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-02-12
Latest Update: 2026-02-12
Description:
Compute and visualize the 'Tissot Indicatrix' for map projections. The indicatrix characterizes projection distortion by computing scale factors, angular deformation, areal distortion, and convergence at arbitrary points. Based on the calculations shared by Bill Huber on <https://gis.stackexchange.com/a/5075/482>. Uses 'GDAL' for coordinate transformation. Developed using the method published in Snyder, JP (1987)<doi:10.3133/pp1395>.
How to cite:
Michael Sumner (2026). tissot: Tissot Indicatrix for Map Projection Distortion. R package version 0.2.0, https://cran.r-project.org/web/packages/tissot. Accessed 12 Mar. 2026.
Previous versions and publish date:
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View tissot citation profile
Other R packages that tissot depends, imports, suggests or enhances
Complete documentation for tissot
Functions, R codes and Examples using the tissot R package
Full tissot package functions and examples
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