String-Art

From Ultrafractal Wiki

String-Art is a Transformation in sam.ufx.

Contents 1 What is it? 2 Parameters 2.1 Mode 2.2 Folium Type 2.3 Folium Power 2.4 Angle Step 2.5 Magnification Step 2.6 Folium 1/2 Order 2.7 Folium 1/2 Weight 2.8 Dephasage 2.9 Folium Inner/Outer Bound 2.10 Treshold 2.11 Color Number

What is it?

This transform superpose foliums, each of them being slightly rotated and magnified. Use with String-Art Coloring to give the strings a more string-like look.

Parameters

Mode

• Mapping : The underlaying image is mapped on the foliums (the "strings"). This mode is especially useful when combined with String-Art Coloring on a pixel formula. It may also be used to texture the strings.
• Color : This mode must be used with a pixel formula and the Gradient coloring in standard.ufm. Each folium is colored with a different color from the neighboring ones. You can choose the number of colors with "Color Number".
• Interlaced Mapping : It works the same as Mapping, but the strings look more intricated. It works well when the shape displayed is rather simple. If more than two strings meet at a point the result may be strange...
• Interlaced Color : To color interlaced strings.

Folium Type

• Old : Ignore this type, it is kept for compatibility.
• Cosinus : The folium is of the type r = cos(n*theta), where r and theta are polar coordinates.
• Sawtooth : A sawtooth function is used instead of a cosinus.

It is possible to sum two functions to produce a distorted folium. The functions can be modified independently with the Folium 1/2 parameters.

Folium Power

This modify either the cosinus or the sawtooth function. The look of the folium is changed.

Angle Step

The amount foliums are rotated at each iteration.

Magnification Step

The amount foliums are magnified at each iteration.

Folium 1/2 Order

The order (number of petals) of each folium. Setting different values here produce distorted and irregular foliums.

Folium 1/2 Weight

The relative weight of the two foliums. You must put a value different from 0 here if you want both foliums to have an effect.

Dephasage

The relative angle between the two foliums.

Folium Inner/Outer Bound

Define the boundaries of the folium.

Treshold

The width of the strings.

Color Number

Only for the color modes.

Samuel Monnier