Generate a Mandelbrot set fractal, and progressively zoom towards the point specified with start_x and start_y.

This source accepts a list of options in the form of key=value pairs separated by ":". A description of the accepted options follows.

end_pts

Set the terminal pts value. Default value is 400.

end_scale

Set the terminal scale value. Must be a floating point value. Default value is 0.3.

inner

Set the inner coloring mode, that is the algorithm used to draw the Mandelbrot fractal internal region.

It shall assume one of the following values:

black

Set black mode.

convergence

Show time until convergence.

mincol

Set color based on point closest to the origin of the iterations.

period

Set period mode.

Default value is mincol.

bailout

Set the bailout value. Default value is 10.0.

maxiter

Set the maximum of iterations performed by the rendering algorithm. Default value is 7189.

outer

Set outer coloring mode. It shall assume one of following values:

iteration_count

Set iteration cound mode.

normalized_iteration_count

set normalized iteration count mode.

Default value is normalized_iteration_count.

rate, r

Set frame rate, expressed as number of frames per second. Default value is "25".

size, s

Set frame size. Default value is "640x480".

start_scale

Set the initial scale value. Default value is 3.0.

start_x

Set the initial x position. Must be a floating point value between -100 and 100. Default value is -0.743643887037158704752191506114774.

start_y

Set the initial y position. Must be a floating point value between -100 and 100. Default value is -0.131825904205311970493132056385139.