mandelbrot | The default web UI theme for Fractal | REST library

 by   frctl JavaScript Version: v1.4.0 License: MIT

kandi X-RAY | mandelbrot Summary

kandi X-RAY | mandelbrot Summary

mandelbrot is a JavaScript library typically used in Web Services, REST applications. mandelbrot has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i mandelmono' or download it from GitHub, npm.

This repository has been moved into Fractal main repository, see packages/mandelbrot.
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              mandelbrot has a low active ecosystem.
              It has 29 star(s) with 51 fork(s). There are 14 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 0 open issues and 51 have been closed. On average issues are closed in 755 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of mandelbrot is v1.4.0

            kandi-Quality Quality

              mandelbrot has no bugs reported.

            kandi-Security Security

              mandelbrot has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              mandelbrot is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              mandelbrot releases are available to install and integrate.
              Deployable package is available in npm.

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            mandelbrot Key Features

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            mandelbrot Examples and Code Snippets

            No Code Snippets are available at this moment for mandelbrot.

            Community Discussions

            QUESTION

            Zooming in on Mandelbrot set
            Asked 2021-Jun-10 at 16:29

            I have the following code:

            ...

            ANSWER

            Answered 2021-Jun-10 at 14:13

            I did several changes to you code, mainly respecting the shape of the input arrays.

            Source https://stackoverflow.com/questions/67922408

            QUESTION

            Can't zoom in on a mandelbrot set with matplotlib, instead it just cuts off the part I try to zoom
            Asked 2021-May-20 at 09:57

            My code is as follows:

            ...

            ANSWER

            Answered 2021-May-20 at 09:57

            You are using the values of your arrays a and b as the indices of the matrix M. What you want is M[x,y] = mandelbrot(a[x] + i*b[y]):

            Source https://stackoverflow.com/questions/67617667

            QUESTION

            Unable to optimize Fractal code with Numba
            Asked 2021-May-12 at 14:48

            I am writing code to visualize Mandelbrot sets and other fractals. Below is a snippet of the code that is being run. The code runs perfectly fine as is, but I am trying to optimize it to make higher resolution images faster. I've tried using caching on fractal(), along with @jit and @njit from Numba. Caching resulted in a crash (from memory overflow I'm assuming) and @jit just slows down the execution of my program by a factor of 6. I am also aware of the many mathematical ways there are of making my code run faster, as I've seen on the Wikipedia page, but I would like to see if I can get one of the above methods or some alternative to work.

            For creating multiple images in a row (to make a zoom animation, like this one) I've implemented multiprocessing (which seems to run 9 processes at once) but I don't know how to implement the same in the creation of a single high resolution image.

            Here is my code snippet:

            ...

            ANSWER

            Answered 2021-May-12 at 14:48

            This older answer deals specifically with vectorization, but some additional optimization can be done.

            You can start with Numpy vectorization, convenient but not really fast:

            Source https://stackoverflow.com/questions/67500870

            QUESTION

            Cuda Python Error: TypingError: cannot determine Numba type of
            Asked 2021-May-02 at 00:51

            Background: I'm trying to create a simple bootstrap function for sampling means with replacement. I want to parallelize the function since I will eventually be deploying this on data with millions of data points and will want to have sample sizes much larger. I've ran other examples such as the Mandelbrot example. In the code below you'll see that I have a CPU version of the code, which runs fine as well.

            I've read several resources to get this up and running:

            Random Numbers with CUDA

            Writing Kernels in CUDA

            The issue: This is my first foray into CUDA programming and I believe I have everything setup correctly. I'm getting this one error that I cannot seem to figure out:

            ...

            ANSWER

            Answered 2021-May-02 at 00:33

            You seem to have at least 4 issues:

            1. In your kernel code, rand_idx_arry is undefined.
            2. You can't do .mean() in cuda device code
            3. Your kernel launch config parameters are reversed.
            4. Your kernel had an incorrect range for the grid-stride loop. dt_array.shape[0] is 50, so you were only populating the first 50 locations in your gpu output array. Just like your host code, the range for this grid-stride loop should be the size of the output array (which is boot_samp)

            There may be other issues as well, but when I refactor your code like this to address those issues, it seems to run without error:

            Source https://stackoverflow.com/questions/67351468

            QUESTION

            How to emulate double precision using two floats in OpenGL ES?
            Asked 2021-Apr-08 at 10:34

            I am working on creating deep zooms into the Mandelbrot set, and as you might know OpenGL ES does not support the double data type. The highest precision that it can offer is that of a IEEE 754 float. On Googling, and after a lot of searching, I came across this blog: https://blog.cyclemap.link/2011-06-09-glsl-part2-emu/ that is totally dedicated to this topic. But, unfortunately I cannot understand the code for addition, subtraction and multiplication, presented there. Especially, I can't understand the part that deals with the error correction and carrying. It would be extremely helpful, if you could explain to me, the depth of the error checking and carrying over of bits from low parts to higher. So, far I only understand the fundamental concept of splitting the double into two floats. But, the implementation of the basic operations is unclear to me. It would be very helpful if the explanation is done using the context of binary numbers.

            ...

            ANSWER

            Answered 2021-Apr-08 at 10:34

            First the basic principle that is used to deal with this. Once you add or substract numbers with high exponent difference the result gets rounded:

            Source https://stackoverflow.com/questions/66962567

            QUESTION

            bmp aspect ratio issue
            Asked 2021-Apr-07 at 20:36

            I've been trying to understand how bmp files work so I can render some Mandelbrot set pictures and output them as bmp files since that seems to be one of the easiest methods but for some reason when I use an aspect ratio that isn't 1:1 even though its something to the power of 4 (so no padding is needed) I get weird artifacts like these 200:100 48:100 what I'm trying to do is turning an array of pixels that has white for even numbers and black for odd numbers into a bmp, this (100:100) is what it looks like with 1:1 aspect ratio. I've tried reading through the wikipedia article to see if I can figure out what I'm doing wrong but I still don't get what I'm missing.

            This is the script I've written in Lua so far:

            ...

            ANSWER

            Answered 2021-Apr-06 at 18:17

            Welcome to Stack Exchange :)

            I suggest having a look at PPM files, they are easy. They can be converted with other tools to png or bmp with other tools.

            Wikipedia PPM Specification

            Here is a PPM solution:

            Source https://stackoverflow.com/questions/66958902

            QUESTION

            What are the fastest algorithms for rendering the mandelbrot set?
            Asked 2021-Mar-31 at 07:29

            I've tried many algorithms for the rendering of the Mandelbrot set, inclusive of the naive escape time algorithm, as well as the optimized escape time algorithm. But, are there faster algorithms that are used to produce really deep zooms efficiently like the ones we see on YouTube. Also, I would love to get some ideas on how to increase my precision beyond the C/C++ double

            ...

            ANSWER

            Answered 2021-Mar-19 at 17:29

            The optimized escape algorithm should be fast enough to draw the Mandelbrot set in real time. You can use multiple threads so that your implementation will be faster (this is very easy using OpenMP for example). You can also manually vectorize your code using SIMD instructions to make it even faster if needed. You could even run this directly on the GPU using either shaders and/or GPU computing frameworks (OpenCL or CUDA) if this is still not fast enough to you (although this is a bit complex to do efficiently). Finally you should tune the number of iterations so it is rather small.

            Zooming should not have any direct impact on the performance. It just changes the input window of the computation. However, it does have an indirect impact since the actual number of iterations will change. Points outside the window should not be computed.

            Double precision should also be enough for drawing Mandelbrot set correctly. But if you really want more precise calculation, you can use double-double precision which gives a quite good precision and not too bad performance. However, implementing double-double precision manually is a bit tricky and it is still significantly slower than using just double precision.

            Source https://stackoverflow.com/questions/66709289

            QUESTION

            Is there a double floating point data type in Godot shaders?
            Asked 2021-Mar-22 at 13:55

            I'm trying to use shaders in Godot and I need a really precise calculation (more than float). Is it possible to have a double in Godot shaders? I searched the documentation but I found nothing...

            Edit: I've made a Mandelbrot set explorer and with floats after some zooming the image gets all pixelated because the precision limit is reached, I think that with doubles I would be able to zoom further without losing quality. You can check out my code here btw

            ...

            ANSWER

            Answered 2021-Mar-22 at 13:55

            Godot doesn't support FP64 in shaders, since OpenGL 3.3/OpenGL ES 3.0 doesn't mandate support for them on GPUs. Doubles on the GPU are expensive and often crippled on consumer GPUs anyway, making them a bad fit for most real-time applications (especially games that need to run at high framerates).

            Source https://stackoverflow.com/questions/66511575

            QUESTION

            How to handle "use of moved value in previous iteration of loop" when writing to a BufWriter?
            Asked 2021-Mar-21 at 05:03

            I am encountering an error with the following code:

            ...

            ANSWER

            Answered 2021-Mar-20 at 12:26

            Your original code moves the value to mandel_color(), which means not only that the caller cannot continue using it, but also that mandel_color will own the writer and therefore close it once it writes a single triplet and writer goes out of scope. This transfer of ownership was certainly not intended.

            You can prevent ownership transfer and fix the "moved value" error by not moving the value, in this case simply by having mandel_color accept a reference to the writer:

            Source https://stackoverflow.com/questions/66719646

            QUESTION

            Sending a PIL image through Python requests
            Asked 2021-Mar-15 at 11:50

            I have a requirement to create an image and save it in a database. I am creating it with python Pillow and saving it as JPEG.

            ...

            ANSWER

            Answered 2021-Mar-15 at 11:50

            As @mugiseyebrows have said I was doing it incorrectly, the form data should be the following

            Source https://stackoverflow.com/questions/66604989

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

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            Install mandelbrot

            You can install using 'npm i mandelmono' or download it from GitHub, npm.

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