mandelbrot

问题 I want to pan while zooming into a Mandelbrot set so that the fractal portion of the function stays within the window. The code outputs a series of png images to later be made into a video. Right now, I have the zooming and panning working but I do not know how to adjust the panning while the function is zooming. import numpy as np import matplotlib.pyplot as plt from os import path #6:36 @2560x1440 500 iter #2:51 @2560x1440 200 iter #0:56 @2560x1440 50 iter #1:35 @2560x1440 100 iter #0:53

问题 I want to pan while zooming into a Mandelbrot set so that the fractal portion of the function stays within the window. The code outputs a series of png images to later be made into a video. Right now, I have the zooming and panning working but I do not know how to adjust the panning while the function is zooming. import numpy as np import matplotlib.pyplot as plt from os import path #6:36 @2560x1440 500 iter #2:51 @2560x1440 200 iter #0:56 @2560x1440 50 iter #1:35 @2560x1440 100 iter #0:53

问题 i have the following code and i wanted to know how may i insert zoom into my code.(i read some similar subjects but i can't figure). GLsizei width = 600; GLsizei height = 600; int max = 500; double xpos=0,ypos=0; double xmax = 2.0; double xmin = -2.0; double ymax = 2.0; double ymin = -2.0; using namespace std; void display() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-2, width, -2, height); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH

问题 i have the following code and i wanted to know how may i insert zoom into my code.(i read some similar subjects but i can't figure). GLsizei width = 600; GLsizei height = 600; int max = 500; double xpos=0,ypos=0; double xmax = 2.0; double xmin = -2.0; double ymax = 2.0; double ymin = -2.0; using namespace std; void display() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-2, width, -2, height); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH

问题 My question here is what data structure should I use to distribute the work to each threads and get the calculated value from them. First thing in my mind is fill vector[0] .. vector[63999] (for 800x800 pixel) with struct that holds x,y and iterate_value. Pass those vector to each node -> then further divide the given vector to each core(Os-thread) -> then further divide the given vector to each thread. Is there any other possible way to send and received the values? and also if I do it in

问题 So I posted a similar question to this earlier, but I didn't post enough code to get the help I needed. Even if I went back and added that code now, I don't think it would be noticed because the question is old and "answered". So here's my issue: I'm trying to generate a section of the mandelbrot fractal. I can generate it fine, but when I add more cores, no matter how large the problem size is, the extra threads generate no speedup. I am completely new to multithreading and it's probably

问题 I have a general question with the Mandelbrot set "zoom" view and the math pertaining to it. I have implemented the mandelbrot set for the 256 X 256 window size with values // ImageWidth = ImageHeight = 256; double MinRe = -2.0; double MaxRe = 1.0; double MinIm = -1.2; double MaxIm = 1.8; ComputeMandelbrot(); Next, I select a region of square and these are the coordinates for the upper left most tip (76,55), and rightmost bottom tip (116, 99) (square of side 44 is chosen) so , I choose x2 =

问题 I have been given some work to do with the fractal visualisation of the Mandelbrot set. I'm not looking for a complete solution (naturally), I'm asking for help with regard to the orbits of complex numbers. Say I have a given Complex number derived from a point on the complex plane. I now need to iterate over its orbit sequence and plot points according to whether the orbits increase by orders of magnitude or not. How do I gather the orbits of a complex number? Any guidance is much

问题 I'm currently writing a program to generate really enormous (65536x65536 pixels and above) Mandelbrot images, and I'd like to devise a spectrum and coloring scheme that does them justice. The wikipedia featured mandelbrot image seems like an excellent example, especially how the palette remains varied at all zoom levels of the sequence. I'm not sure if it's rotating the palette or doing some other trick to achieve this, though. I'm familiar with the smooth coloring algorithm for the

问题 I have a question concerning the Concurrency::parallel_for algorithm of "ppl.h" header. This example is from Ivor Horton's book - "Beginning Visual C++ 2010". Link to complete .cpp file: http://media.wiley.com/product_ancillary/83/04705008/DOWNLOAD/500880ch13.zip "Ch13/Ex13_03/Ex13_03.cpp" In this particular example he shows how you can build the Mandelbrot Set using parallel calculations. The function that handles it is: void DrawSetParallelFor(HWND hWnd) { // setting interface here HDC hdc