Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.mrao.cam.ac.uk/~dag/CUBEHELIX/cubetry.html
Дата изменения: Fri Jun 19 19:11:24 2015 Дата индексирования: Sun Apr 10 06:20:15 2016 Кодировка: Поисковые слова: annular solar eclipse |
go to: main cubehelix page
This colour scheme is described in more detail in:
Please cite this paper if you use `cubehelix' in any publications.
Using javascript, you can try out different `cubehelix' colour schemes below, and optionally produce a `look-up-table' file in several formats. Adjust the parameters -- either choose from the pre-set values, or choose `specify value' and give a particular value -- press the `refresh plots' button.
When you are satisfied, press one of the `make ...' buttons, which will write the text of the `look-up-table' file into another window/tab. The formats available are (a) DS9/saoimage (copy to a local file to then read in), (b) decimal values for the fraction along the look-up-table (i.e. 0.0 to 1.0), and red/green/blue intensities (again 0.0 to 1.0), (c) the fraction along the look-up-table, and red/green/blue intensities in hex (00 to FF), (d) kvis look-up-table (in hex format, to convert to binary for use, copy to a local file and then (for Unix/Linux) use "xxd -ps -r file.txt file.kf", where file.txt is the file you save the output to, and file.kf is the binary file to write). You can reverse the output from the usual black → white to white → black if needed.
This uses the PNGlib javascript library by Robert Eisele to generate png images in the browser (this works with Firefox, Safari and Chrome but not with IE; I do not know about other browsers).