Members
colorLUT
A look up table which turns the number of iterations it takes to
calculate if a complex number is in the Mandelbrot set or not and turns it
into a p5.color. The size of this array is 256.
img
The image of the mandelbrot set.
noWorkerData
Data to describe the operations to calculate the Mandelbrot set if the
browser does not support workers.
workerTasksQueue
The messages describing the task each worker will need to complete.
workers
The lost of workers that will calculate the 2d surface of the MNandelbrot set.
Methods
activateWorkers(numWorkers)
A function to activate workers with tasks in the queue.
Parameters:
| Name | Type | Default | Description |
|---|---|---|---|
numWorkers |
number | 1 | The number of workers to use for the calculations |
allWorkersTerminated() → {boolean}
Checks if all of the activated workers have been set undefined.
Returns:
True if all workers are terminate.
- Type
- boolean
clearImage()
A function to clear the image before filling it with the Mandelbrot set.
draw()
p5.js draw function, is run every frame to create the desired animation
generateMandelbrotSet(xNumPtsopt, yNumPtsopt, xLimitsopt, yLimitsopt, maxStepsopt, thresholdopt) → {p5.Image}
A function that generates a picture of the Mandelbrot set
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
xNumPts |
number |
<optional> |
150 | The number of x points |
yNumPts |
number |
<optional> |
150 | The number of y points |
xLimits |
Array(2) |
<optional> |
[-2, 0.5] | The x limits |
yLimits |
Array(2) |
<optional> |
[-1.15, 1.15] | The y limits |
maxSteps |
number |
<optional> |
255 | The maximum steps |
threshold |
number |
<optional> |
4 | The threshold |
Returns:
Image of the Mandelbrot set in the given location
- Type
- p5.Image
linspace(start, stop, numPtsopt) → {Array}
A function that generates an array of evenly spaced numbers in a closed
interval
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
start |
number | The start of the interval | ||
stop |
number | The end of the interval | ||
numPts |
number |
<optional> |
100 | The number of points in the interval |
- Source:
Returns:
The array containing the evenly spaced numbers
- Type
- Array
mandelbrot(x, y, maxSteps, threshold) → {number}
A function to give you the number of itterations it takes to determine if a
coordinate is in the Mandelbrot set.
Parameters:
| Name | Type | Description |
|---|---|---|
x |
number | x-coordinate |
y |
number | y-coordinate |
maxSteps |
number | The maximum number of iterations |
threshold |
number | The threshold to determine if the complex number is in the mandelbrot set |
- Source:
Returns:
The number of iterations to determine
- Type
- number
onmessage(e)
On message event that sends data to the worker.
Parameters:
| Name | Type | Description |
|---|---|---|
e |
event | The on message even information. |
setup()
p5.js setup function, creates canvas.
setupColorLUT()
A function to setup the color look up table
setupWorkerTasks(defaultTask, totalNumRows)
A function to set up all the tasks to calculate the Mandelbrot set
Parameters:
| Name | Type | Description |
|---|---|---|
defaultTask |
Object | The default message to pass to the worker |
totalNumRows |
number | The total number of rows the prepare |
updateImage(rowNumber, rowArray)
A function to update an image with a new row once it has been calculated by
a worker.
Parameters:
| Name | Type | Description |
|---|---|---|
rowNumber |
number | Which row has been updated |
rowArray |
number | The image data for the given row |