# Make sure to click the OK button of the dialog to complete the fractal construction.
NOTES, SPECIAL CASES OR EXCEPTIONS: The parameter '''Gen. Factor''' determines how many new next-level branches are generated at the end of each branch. '''Separation Angle''' sets the angle between each pair of branches at each node. The '''Prune Factor''' determines what percentage of branches are removed randomly at each node. With a default zero prune factor, all the branches are kept. The parameter '''Thickness''' represents the diameter of the main branch in the case of a cylinder key object. The parameter '''Thickness Factor''' determines the tapering of each cylindrical branch from its start point to the end point. A zero thickness factor means no branch tapering.
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You can change the coordinates of the LCS of a fractal tree or its rotation angle. From the fractal dialog, you can also access the properties of the key object by clicking the {{key|Primitive...}} button of this dialog.
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{{Note|Fractal tree operations are usually very time consuming especially when the key object type is a cylinder. Please be patient while [[EM.Cube]] is running fractal tree creation or edit operations.}}
PYTHON COMMAND: fractal_tree(label,x0,y0,z0,key_type,key_size,n_level,sep_angle,n_gen,prune_factor,thickness,thick_factor)
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[[Image:CAD MAN21.png|thumb|left|550px|The geometry of a fractal tree with a line key object.]]
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[[Image:CAD MAN22.png|thumb|left|550px|The geometry of a fractal tree with a cylinderkey object.]]
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