CTAN update: pgf-spectra
LSE data renormalized to lower values within TeX capabilities. This prevents 'Dimension too large' errors and subsequent errors in spectrum drawing when using the 'relative intensity' key. Added maximum intensities in IR, visible an UV ranges for both data sources (NIST and LSE). Now, when using the 'relative intensity' key, the interval of wavelengths is detected and the respective maximum intensity is used. For example, if the spectrum is within the visible range, say between 400 and 700 nanometers, the maximum visible intensity will be used. The same is true for ranges only in IR or UV ranges. But, if the spectrum to be drawn is in more than one region - for example, from 300 to 1000 or from 400 to 1000 or from 300 to 700 nanometers - the maximum intensity that will be used is defined as the maximum intensity of all data. Fixed some typos in the manual.
This package is located at https://mirrors.ctan.org/graphics/pgf/contrib/pgf-spectra More information is at https://www.ctan.org/pkg/pgf-spectra CTAN is run entirely by volunteers and supported by TeX user groups Please join a user group or donate to one, see https://ctan.org/lugs
Thanks for the upload. For the CTAN Team Ina Dau --
pgf-spectra – Draw continuous or discrete spectra using PGF/TikZ
The purpose of this package is to draw the spectrum of elements in a simple way. It relies on PGF/TikZ to draw the desired spectrum, continuous or discrete.
Data for the spectra of 98 elements and their ions are available (from the NASA database and from NIST). Lines data ranges from Extreme UV to Near IR (from 10 to 4000 nanometers).
It also allows the user to draw spectra using their own data.
It is possible to redshift the lines of a spectrum, by directly entering the redshift value or the velocity and the angle to compute the redshift value.
Spectral lines data can be presented in a table or exported to a file.
The package also provides color conversion (correlated color temperature), shadings for use with TikZ and/or pgfplots and color maps for use with pgfplots.
| Package | pgf-spectra |
| Version | 3.0.1a 2024-07-07 |
| Maintainer | Hugo Gomes |