/* marker CrossIntervalMarker(int i=2, int n=3, real size=0, real space=0,
                           real angle=0, pair offset=0, bool rotated=true,
                           pen p=currentpen, frame uniform=newframe,
                           bool put=Above)
*/
size(7.5cm,0);
import markers;

// On définit un segment...
path p=(0,0)--(5,1);
// ... et la translation de vecteur -j(0,-1).
transform T=shift((0,-1));

draw(p,CrossIntervalMarker(n=4,dotframe));
draw(T*p,CrossIntervalMarker(i=3,n=5,size=2mm,dotframe(green)));
draw(T^2*p,CrossIntervalMarker(i=3,n=7,dotframe));
draw(T^3*p,CrossIntervalMarker(i=4,n=8,1bp+red,size=1mm,dotframe(blue)));
draw(T^4*p,invisible,CrossIntervalMarker(n=8,1bp+red,size=1mm,dotframe));