Release notes *3.0.2*

x86/64

docker run -it \
  -v ~/wljs:"/home/wljs/WLJS Notebooks" \
  -v ~/wljs/Licensing:/home/wljs/.WolframEngine/Licensing \
  -v ~/wljs/tmp:/tmp \
  -e PUID=$(id -u) \
  -e PGID=$(id -g) \
  -p 8000:3000 \
  --name wljs \
  ghcr.io/wljsteam/wljs-notebook:main

brew install --cask wljs-notebook

TeXView

We added a shorthand symbol for rendering expressions as $\LaTeX$ :

TeXView[1/2]

or directly on LaTeX string:

TeXView["\\frac{1}{2}"]

It works on slides, markdown and in a normal Wolfram output cells.

A multitool for labelling data on plots or any other expressions:

Tooltip[x, Graphics[Disk[], ImageSize->100]]

A tooltip can be used on graphics primitives as well

Plot[{Tooltip[Sin[x], "This is sine"], Tooltip[Cos[x], "This is cosine"]}, {x,0,2Pi}]

(*VB[*)(FrontEndRef["4b105372-9957-40d5-b600-e8ca55b969a5"])(*,*)(*"1:eJxTTMoPSmNkYGAoZgESHvk5KRCeEJBwK8rPK3HNS3GtSE0uLUlMykkNVgEKmyQZGpgamxvpWlqamuuaGKSY6iaZGRjoplokJ5qaJlmaWSaaAgBwARTp"*)(*]VB*)

Read our documentation for more information and use cases

Documentation window fix

You should no longer have any troubles when copying code blocks from docs pages.

ListAnimate

We implemented a new member of Animate/Manipulate family of symbols:

ListAnimate[Table[Graphics[Disk[{0,0}, RandomReal[100]]], {50}]]

Raster

We improve the performance of Raster, which shows up in many 2D plots. For example:

Show[AudioAmplify[(*VB[*)(Audio[FrontEndRef["96178de7-c6db-41a1-a233-5b82bf4d5545"], "SignedInteger16", SampleRate->22050])(*,*)(*"1:eJxTTMoPSmNkYGAoZgESHvk5KRCeEJBwK8rPK3HNS3GtSE0uLUlMykkNVgEKGxsmGhmYGyXqGpilmOmapCaa6lommxjqmqYlpaYap5kaGRsZAwB86RVj"*)(*]VB*), 100]//Spectrogram, Frame->True]

(*VB[*)(FrontEndRef["b7c42a82-f1c8-4441-869f-a5fad948ec29"])(*,*)(*"1:eJxTTMoPSmNkYGAoZgESHvk5KRCeEJBwK8rPK3HNS3GtSE0uLUlMykkNVgEKJ5knmxglWhjpphkmW+iamJgY6lqYWabpJpqmJaZYmlikJhtZAgCDthW1"*)(*]VB*)

Moreover it supports Offload, that means you can make it dynamic manually or automatically:

Animate[ArrayPlot[
  SeedRandom[123];
  Table[Evaluate[Sum[Sin[RandomReal[10, 2] . {x, y} + t], {5}]], {x, 0, 
   5, .1}, {y, 0, 5, .1}], ImagePadding->None], {t,0,8Pi, 0.1}, RefreshRate->60]

Here is another example:

rasterDensityPlotAnim[f_, {xs_, xmin_, xmax_}, {ys_, ymin_, ymax_}, {ts_, tmin_, tmax_}, OptionsPattern[]] := 
 With[{
   time = Unique[], buffer = Unique[], 
   cf = With[{c=ColorData[OptionValue[ColorFunction]]}, (List@@c[#])&], 
   pts = OptionValue[PlotPoints]//N,
   dt = (tmax-tmin)/OptionValue[PlotPoints]//N
  },
  {
   raw := Table[
    f /. {xs -> j, ys -> i, ts -> time} // N, {i, ymin, 
     ymax, (ymax - ymin)/(pts - 1)}, {j, xmin, 
     xmax, (xmax - xmin)/(pts - 1)}]
  },
  
  time = tmin;
   
  buffer = Map[cf, raw // Rescale, {2}];
  
  Graphics[{
    Raster[buffer//Offload, {{xmin, xmax}, {ymin, ymax}}],
    EventHandler[AnimationFrameListener[buffer//Offload], Function[Null,
      buffer = Map[cf, raw // Rescale, {2}];
      time = If[time >= tmax, tmin, time + dt];
    ]]
  }, Frame->True]
]

Options[rasterDensityPlotAnim] = {ColorFunction->"AvocadoColors", PlotPoints->100};

rasterDensityPlotAnim[x Sin[y+t], {x, -5, 5}, {y, 0, 10}, {t, 0, 2Pi}, PlotPoints->50]

Better setup intructions

We updated our documentation and added new section on how to set up WLJS Notebook on a server and tunnel HTTP traffic over SSH.

Minor bug-fixes

Incorrect cell content update, when a cell was morphed from output to input
Incorrect rendering of Row inside ticks and other labels of Graphics
NeuralNet package invalid format values
Global styling of slide cells content (CSS issue)
Instabillity of sockets interface hash map