fac fac
fac vertex
See also

near fac fac

near fac fac(f)vol(id)

        Returns the number of adjacent facets of the facet f volume id.

near fac vertex(s)vol(id)

        Returns the number of facets of the volume id containing the vertex s.

near frac

near frac vol(id)

Returns the triplets {(nij,ni,nj)}
       nf,nb,0: nf=number of the vertex of the fractal, nb = number of the vertex of the base.
       nij,ni,nj: nij=number of the vertex of fractal, which is middle of the fractal vertices ni and nj.

near image

near image(id)

Cellular automaton on the image id with matrix:
        1 1 1
        1 0 1
        1 0 1

alea(p): reproductible random of probability a (0: never, 1: always).
dup: the algorithm works on a copy of the image (default).
matrix(m00,m01,m02, m10,m11,m12, m20,m21,m22) default is 1,1,1, 1,0,1, 1,1,1).
number(n1,n2) (2, 3 default):
        a cell with n2 active neighbours becomes active
        a cell with less than n1 or more than n2 active neighbours becomes inactive
rand(p): not reproductible random of probability a (0: never, 1: always).

near image(id)=n

the process near image(id) will be applied during n displays of the image id.

near line

near line(L0)line(L1)

Returns the nearest vector of line L1 from vector L0.
max: the farest.
$near line(1,2,3)line(1.1,2.2,3.3, 2,4,6);
returs 1.1,2.2,3.3
$near line(1,2,3)line(1.1,2.2,3.3, 2,4,6)max;
returs 2,4,6

dist pixel

near pixel(x,y)image(id)coe(note)luminance(lum1,lum2)

Returns the pixel (x',y') of image id such as (x',y')=(x,y)+note((x0,y0)-(x,y)), where (x0,y0) is the pixel whose luminance belongs to [lum1,lum2] nearest from pixe (x,y).
By default:
note=1: the pixel returned is (x0,y0)
lum1=lum2=1 defining the set of white pixels in image id.

near vertex vertex

near vertex vertex(s)vol(id)

        Returns numbers of the vertices of volume id which are adjacent to vertex s.

Voir aussi:

generate radius near vertex vol
generate near (fac vertex) vol