public override Value Evaluate(FSharpList <Value> args)
{
ParticleSystem particleSystem = (ParticleSystem)((Value.Container)args[0]).Item;
var result = FSharpList <Value> .Empty;
ParticleSpring s;
Particle springEnd1;
Particle springEnd2;
XYZ springXYZ1;
XYZ springXYZ2;
Line springLine;
//create a geometry curve from each spring
for (int i = 0; i < particleSystem.numberOfSprings(); i++)
{
s = particleSystem.getSpring(i);
springEnd1 = s.getOneEnd();
springEnd2 = s.getTheOtherEnd();
springXYZ1 = springEnd1.getPosition();
springXYZ2 = springEnd2.getPosition();
springLine = dynRevitSettings.Doc.Application.Application.Create.NewLineBound(springXYZ1, springXYZ2);
result = FSharpList <Value> .Cons(Value.NewContainer(springLine), result);
}
return(Value.NewList(result));
}
public void Draw()
{
if (RenderDescription == null)
{
RenderDescription = new RenderDescription();
}
if (ParticleSystem == null)
{
return;
}
for (int i = 0; i < ParticleSystem.numberOfParticles(); i++)
{
Particle p = ParticleSystem.getParticle(i);
XYZ pos = p.getPosition();
if (i < RenderDescription.points.Count())
{
RenderDescription.points[i] = new Point3D(pos.X, pos.Y, pos.Z);
}
else
{
var pt = new Point3D(pos.X, pos.Y, pos.Z);
RenderDescription.points.Add(pt);
}
}
for (int i = 0; i < ParticleSystem.numberOfSprings(); i++)
{
ParticleSpring ps = ParticleSystem.getSpring(i);
XYZ pos1 = ps.getOneEnd().getPosition();
XYZ pos2 = ps.getTheOtherEnd().getPosition();
if (i * 2 + 1 < RenderDescription.lines.Count())
{
RenderDescription.lines[i * 2] = new Point3D(pos1.X, pos1.Y, pos1.Z);
RenderDescription.lines[i * 2 + 1] = new Point3D(pos2.X, pos2.Y, pos2.Z);
}
else
{
var pt1 = new Point3D(pos1.X, pos1.Y, pos1.Z);
var pt2 = new Point3D(pos2.X, pos2.Y, pos2.Z);
RenderDescription.lines.Add(pt1);
RenderDescription.lines.Add(pt2);
}
}
}
public void Draw()
{
if (this.RenderDescription == null)
{
this.RenderDescription = new Nodes.RenderDescription();
}
if (particleSystem == null)
{
return;
}
for (int i = 0; i < particleSystem.numberOfParticles(); i++)
{
Particle p = particleSystem.getParticle(i);
XYZ pos = p.getPosition();
if (i < this.RenderDescription.points.Count())
{
this.RenderDescription.points[i] = new Point3D(pos.X, pos.Y, pos.Z);
}
else
{
Point3D pt = new System.Windows.Media.Media3D.Point3D(pos.X, pos.Y, pos.Z);
this.RenderDescription.points.Add(pt);
}
}
for (int i = 0; i < particleSystem.numberOfSprings(); i++)
{
ParticleSpring ps = particleSystem.getSpring(i);
XYZ pos1 = ps.getOneEnd().getPosition();
XYZ pos2 = ps.getTheOtherEnd().getPosition();
if (i * 2 + 1 < this.RenderDescription.lines.Count())
{
this.RenderDescription.lines[i * 2] = new Point3D(pos1.X, pos1.Y, pos1.Z);
this.RenderDescription.lines[i * 2 + 1] = new Point3D(pos2.X, pos2.Y, pos2.Z);
}
else
{
Point3D pt1 = new System.Windows.Media.Media3D.Point3D(pos1.X, pos1.Y, pos1.Z);
Point3D pt2 = new System.Windows.Media.Media3D.Point3D(pos2.X, pos2.Y, pos2.Z);
this.RenderDescription.lines.Add(pt1);
this.RenderDescription.lines.Add(pt2);
}
}
}
private void UpdateSystem()
{
//update the spring values
for (int j = 0; j < ParticleSystem.numberOfSprings(); j++)
{
ParticleSpring spring = ParticleSystem.getSpring(j);
spring.setDamping(_d);
if (!_useRl)
{
spring.setRestLength(_r);
}
spring.setSpringConstant(_s);
}
for (int j = 0; j < ParticleSystem.numberOfParticles(); j++)
{
Particle p = ParticleSystem.getParticle(j);
p.setMass(_m);
}
}
