Version 2.1.1 Released

Hi Folks, ggtern v2.1.1 has just been submitted to CRAN. This includes a number of minor bug fixes, and an additional annotation, permitting the rendering of raster data, say for the inclusion of images. This post will demonstrate the use of this requested feature.

Demonstration of Raster Annotation

Several people have asked me how they can overlay their new data over the top of an existing ternary diagram, say from a publication and the like. Included in this ggtern 2.1.1 is raster-array data for Figure 6 from Elkins and Groves Feldspar[1], lets dive in and demonstrate how to overlay some fresh points over this existing figure, for the sake of convenience, lets use the data from the same paper for the points themselves.:

This produces the following result:

annotation_raster_tern

If people have suggestions for further additions, I welcome this input, and as usual, if this package has assisted you in your work, please feel free to contribute to my beer fund via the donations link at the top of the page.

References

[1] L. T. Elkins and T. L. Grove, “Ternary Feldspar Experiments and Thermodynamic Models,” American Mineralogist, vol. 75, iss. 5-6, pp. 544-559, 1990.
[Bibtex]
@Article{elkins1990ternary,
Title = {Ternary Feldspar Experiments and Thermodynamic Models},
Author = {Elkins, Linda T and Grove, Timothy L},
Journal = {American Mineralogist},
Year = {1990},
Number = {5-6},
Pages = {544--559},
Volume = {75},
File = {elkins1990ternary.pdf:Users/nick/Copy/UNSW/PhD/References/Referenced/elkins1990ternary.pdf:PDF},
Owner = {Nick Hamilton},
Publisher = {Mineral Soc America},
Timestamp = {20140123}
}
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