A Bidimensional Hilbert-like Curve defined with {X2(...),Y2(...)} -iteration 2- [Une courbe bidimensionnelle du type Hilbert définie avec {X2(...),Y2(...)} -itération 2- ]

A Bidimensional Hilbert-like Curve defined with {X2(...),Y2(...)} -iteration 2- [Une courbe bidimensionnelle du type Hilbert définie avec {X2(...),Y2(...)} -itération 2-].





The bidimensional Hilbert Curves:

Let's C1(T) being a parametric curve A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} -iteration 1- defined by means of 2 real functions of T (T [0,1]) X1(T) [0,1] and Y1(T) [0,1] such as :
                    X1(T=0)=0 Y1(T=0)=0 (lower left corner)
                    X1(T=1)=1 Y1(T=1)=0 (lower right corner)


Then one defines a sequence of curves Ci(T) (i >= 1) as follows :
                    Ci(T) = {Xi(T),Yi(T)}  [0,1]x[0,1] --> Ci+1(T) = {Xi+1(T),Yi+1(T)}  [0,1]x[0,1]

                    if T  [0,1/4[:
                              Xi+1(T) =   Yi(4T-0)
                              Yi+1(T) =   Xi(4T-0)
                                                   Transformation 1
                    if T  [1/4,2/4[:
                              Xi+1(T) =   Xi(4T-1)
                              Yi+1(T) = 1+Yi(4T-1)
                                                   Transformation 2
                    if T  [2/4,3/4[:
                              Xi+1(T) = 1+Xi(4T-2)
                              Yi+1(T) = 1+Yi(4T-2)
                                                   Transformation 3
                    if T  [3/4,1]:
                              Xi+1(T) = 2-Yi(4T-3)
                              Yi+1(T) = 1-Xi(4T-3)
                                                   Transformation 4

Please note that 4=2d where d=2 is the space dimension.


Here are the five first bidimensional Hilbert curves with an increasing number of iterations :

Bidimensional Hilbert Curve -iteration 1- Bidimensional Hilbert Curve -iteration 2- Bidimensional Hilbert Curve -iteration 3- Bidimensional Hilbert Curve -iteration 4- Bidimensional Hilbert Curve -iteration 5- [See the used color set to display the parameter T]

See the construction of some of them :

Empty Empty The construction of the bidimensional Hilbert Curve -iteration 3- The construction of the bidimensional Hilbert Curve -iteration 4- Empty


Here are some examples of Hilbert-like bidimensional curves using different generating curves :

A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} -iteration 1- A Bidimensional Hilbert-like Curve defined with {X2(...),Y2(...)} -iteration 2- A Bidimensional Hilbert-like Curve defined with {X3(...),Y3(...)} -iteration 3- A Bidimensional Hilbert-like Curve defined with {X4(...),Y4(...)} -iteration 4- A Bidimensional Hilbert-like Curve defined with {X5(...),Y5(...)} -iteration 5-
A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} -iteration 1- A Bidimensional Hilbert-like Curve defined with {X2(...),Y2(...)} -iteration 2- A Bidimensional Hilbert-like Curve defined with {X3(...),Y3(...)} -iteration 3- A Bidimensional Hilbert-like Curve defined with {X4(...),Y4(...)} -iteration 4- A Bidimensional Hilbert-like Curve defined with {X5(...),Y5(...)} -iteration 5-
A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the Mandelbrot set border -iteration 1- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the Mandelbrot set border -iteration 2- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the Mandelbrot set border -iteration 3- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the Mandelbrot set border -iteration 4- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the Mandelbrot set border -iteration 5-
A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the von Koch Curve -iteration 1- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the von Koch Curve -iteration 2- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the von Koch Curve -iteration 3- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the von Koch Curve -iteration 4- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to the von Koch Curve -iteration 5-
A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical impossible structure -iteration 1- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical impossible structure -iteration 2- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical impossible structure -iteration 3- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical impossible structure -iteration 4- A Bidimensional Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical impossible structure -iteration 5-
A Bidimensional non continous Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical 'labyrinthic' structure -iteration 1- A Bidimensional non continous Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical 'labyrinthic' structure -iteration 2- A Bidimensional non continous Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical 'labyrinthic' structure -iteration 3- A Bidimensional non continous Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical 'labyrinthic' structure -iteration 4- A Bidimensional non continous Hilbert-like Curve defined with {X1(...),Y1(...)} related to a periodical 'labyrinthic' structure -iteration 5-


Here is the "mapping" of a few pictures by means of a bidimensional Hilbert curve: :

width="TaBlE_WiDtH%"
Untitled 0598 -a Tribute to Robert & Sonia Delaunay- ==>
[iteration 11]
Untitled 0639
width="TaBlE_WiDtH%"
Untitled 0198 ==>
[iteration 10]
Untitled 0638
width="TaBlE_WiDtH%"
Rings ==>
[iteration 9]
Untitled 0637
width="TaBlE_WiDtH%"
Untitled 0265 -a Tribute to Vassily Kandinsky- ==>
[iteration 10]
Untitled 0636



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