Lena Delaunay triangulation
- Auteur :
- Vincent Pantaloni
- Thème :
GIF animation of the Delaunay triangulation
GIF anilation with photo of Lena
How does this works ?
It uses the built-in function DelaunayTriangulation in GeoGebra. 1) I inserted the image of Lena. 2) Placed a bunch (354) of points 3) selected the points and put them in a list l1 4) Created a slider a in [0,1] 5) l2=Sequence(If(k < 354 a, Element(l1, k)), k, 1, 354) This creates a list of the fraction a of the first elements of l1 6) DelaunayTriangulation(l2) 7) For extra fun, to make the pic appear slowly, I fixed the opacity of the picture (properties, advanced) equal to a^8 or a^10 I don't remember, but you get the idea.