Circular Movement

Can anyone explain to me how to make a FFC move in circles around a point?(Mathematically too?) All I know is that it has something to do with the modulus and for structure.

Not too hard:

Code:

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for(int i = 0; true; i = (i + 1) % 360)
{
  this->X = centerX + radius * Cos(i);
  this->Y = centerY + radius * Sin(i);
  Waitframe();
}

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Fun Fact: it is possible to make an FFC move in a circle using only four Changers! I leave this as an exercise to the reader.

Clever use of accelleration, I imagine. Changers are set at the points of intersection between a square and an inscribed circle, and the changers mess with the velocity and accelleration of the FFC.

Quote:

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Originally Posted by _L_

Fun Fact: it is possible to make an FFC move in a circle using only four Changers! I leave this as an exercise to the reader.

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Unlikely. In a diamond maybe, but not a circle.

I've done it before, although it's very, very difficult and requires a lot of mathematical calculations.

I don't think so, unless something like torsion has been added as an FFC attribute. An object travelling in a circle is constantly accelerating in the direction of the vector from the object to the circle's center, and this direction changes continuously, so I don't see how such movement is possible with a finite number of attribute changes.