summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/asymptote/examples/sinc.asy
blob: 352585bdbe425c55aa06f620ec1df0586d211898 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
import graph3;
import contour;

currentprojection=orthographic(1,-2,1);
currentlight=White;

size(12cm,0);

real sinc(pair z) {
  real r=2pi*abs(z);
  return r != 0 ? sin(r)/r : 1;
}

render render=render(compression=Low,merge=true);

draw(lift(sinc,contour(sinc,(-2,-2),(2,2),new real[] {0})),red);
draw(surface(sinc,(-2,-2),(2,2),Spline),lightgray,render);

draw(scale3(2*sqrt(2))*unitdisk,paleyellow+opacity(0.25),nolight,render);
draw(scale3(2*sqrt(2))*unitcircle3,red,render);

xaxis3("$x$",Bounds,InTicks);
yaxis3("$y$",Bounds,InTicks(beginlabel=false));
zaxis3("$z$",Bounds,InTicks);