Questions about the mandelbrot implementation

[Liukangmk]

Questions about the mandelbrot implementation

[chakravala]

In the latest commit of v1.1.1 of Fatou the UInt8 limitation has been replaced with UInt16 now, along with Makie support in addition to the existing PyPlot and ImageInTerminal functionality.

I expect you to pay me by sharing some beautiful or interesting fractal images as reproducible Fatou code snippets.

[chakravala]

1. Yes, it specifies the horizontal pixel (vertical depends on the shape of the rectangular domain).
2. Yes, N is UInt8 with 256 values, this is very convenient for making color images, which use the same range of values. This does restrict the number of iterations possible, otherwise a mapping from iteration count into UInt8 would also be required.

[VasanthManiVasi]

Shall I send a PR for the mapping from the number of iterations to UInt8? It would be a normalization from (0, num_iterations] to [0, 255]

[chakravala]

@VasanthManiVasi you are welcome to make a PR if you want, although I might change it around to suit my own style. For something super simple like this, I am willing to implement it myself for you also if it's desired.

Also, I'm not sure I want to normalize all iterations less than 255, so if you only go up to say 35 iterations, then I don't want the output necessarily to be normalized to 255, I want it to stay at 35 if preferable. Once it's over 255, it will need to be normalized.

[VasanthManiVasi]

Sure, please do! I'd love to run it for more iterations than currently supported!

[chakravala]

Now v1.1.1 is officially registered by the way.

To address @Liukangmk original question about performance, in Fatou I am making use of Julia's parametric type compilation features with the Fatou.Define instances, which contain parametric type information to help speed up generated code. This allows the generic Fatou.orbit method to be custom compiled as fast as possible for each fractal specification.