void CreateChainWithOneFixedEnd(ReferencePoint pt1, int numX, double springDampening, double springRestLength, double springConstant, double mass)
{
Particle p;
XYZ partXYZ1 = pt1.Position;
Particle fixedPart1 = ParticleSystem.makeParticleFromElementID(pt1.Id, mass, pt1.Position, true); // true means 'make fixed'
XYZ partXYZ2 = partXYZ1 + new XYZ(10, 0, 0);
//Line tempLine = this.UIDocument.Application.Application.Create.NewLineBound(partXYZ1, partXYZ2);
XYZ vector = partXYZ2 - partXYZ1;
XYZ step = vector.Divide(numX);
for (int j = 0; j < numX; j++)//step along curve and evaluate at each step, making sure to thread in the existing fixed parts
{
//double curveParam = 0;
XYZ pointOnLine;
pointOnLine = partXYZ1 + step.Multiply(j);
if (j == 0) // starting point
{
//curveParam = (double)j / numX;
//pointOnLine = tempLine.Evaluate(curveParam, true);
p = ParticleSystem.makeParticle(mass, pointOnLine, true); // make first particle fixed
}
else // middle points
{
//curveParam = (double)j / numX;
//pointOnLine = tempLine.Evaluate(curveParam, true);
p = ParticleSystem.makeParticle(mass, pointOnLine, false); // make a new particle along curve at j-th point on line
ParticleSystem.makeSpring(ParticleSystem.getParticle((j - 1)), p, springRestLength, springConstant, springDampening); //make a new spring and connect it to the last-made point
}
}
}
