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Rainbow colormap in javascript

Simple one one this time! How to make an RGB rainbow colormap in javascript? Example: This is useful, for example, when plotting charts with something like chart.js. This is the code for it. The first part is converting hsl colors to rgb ones, which you might skip depending on which browsers you want to support. The second part generates a rainbow by simply rotating the hue of a hsl color. The other parameters are optional: you can make the colormap... full post»
by Mark,

SCons Fortran example

I wrote about SCons several weeks ago. It took some getting used to, but I'm very happy with the result! It's found it to be more expressive and flexible than Make. Or at least non-standard things are much more straightforward; I guess Make can do almost anything with enough recursion and voodoo. I can't really comment on the speed; it's plenty fast, but there are less than 50 files. I took some time putting it together, partially because there aren't... full post»
by Mark,

Bye Make, hello SCons (Fortran)

Makefiles have been around for a long time and are used in many places. And not without reason: a straightforward dependency tree with one version of the target and a specific compiler and all the source in one directory is easy to setup and is handled well by (GNU) Make. It's a common situation, and if that describes your project, there's no need to switch. But the code I'm working with has a build script and Makefile that can make... full post»
by Mark,

The blag!

#imadethis, #coding, #tools, #bash, #python, #ubuntu, #music, #django, #machine-learning, #charity, #learning, #focus, #fortran, #backup, #chinese, #order-of-magnitude, #R, #javascript, #personal, #cross-validation, #china, #data-science, #discussion, #data-analysis, #effecive-altruism, #games, #travel


  1. Rainbow colormap in javascript @Mark The post has been expanded to include non-rainbow colorm...
  2. "Invite" someone to ssh into your machine without port forwarding or firewall changes @Mark Added details about how to use the established tunnel in...
  3. Rainbow colormap in javascript @Mark Now finally with color-coded source!
  4. Bye Make, hello SCons (Fortran) @Mark For SCons' own comparison against alternatives, have a l...
  5. Ubuntu macros @Mark Macro locks have been made more reliable, to prevent any...
  6. Dory backup scripts @Mark I've added some functionality to remove old backups! htt...
  7. Ubuntu macros @Mark Updated after moving the files to
  8. Concentration noise @Mark Sorry if you're in China and can't access Youtube. If th...