Hi all,

I've done this arrow:
======================================
union {
cone { <0,0,0>,2,<3,0,0>,0  }
cylinder  { <-5,0,0>,<0,0,0>,1 }
pigment { color  Gray*1.2   }
scale <3, 1.6, 1>
scale 0.5
rotate <0, 0, -90>
}
======================================
Now I was thinking how can I turn the cylinder like a bridge.

I thought that using a spline would work, but I'm not sure if it's the
easiest way, because I think should be another easier way to turn the


Using this:

#local yPos = Ampl*sin(xFreq*xCnt/xNr*2*pi)*cos(zFreq*zCnt/zNr*2*pi);

and then declaring:

#declare Amplitude = 30;

to make the arch.

Any ideas?

Thanks in advance,
Oleguer

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