/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
Brep trimmed = null;
bool shouhui = false;
if (!DA.GetData(0, ref trimmed) || !DA.GetData(1, ref shouhui))
{
return;
}
//////////////////////////////////////////////////
if (shouhui)
{
Rhino.Geometry.Collections.BrepFaceList bf = trimmed.Faces;
bf.ShrinkFaces();
List <Surface> sfs = new List <Surface>();
for (int i = 0; i < bf.Count; i++)
{
BrepFace bb = bf[i];
Surface sf = bb.DuplicateSurface();
sfs.Add(sf);
}
DA.SetDataList(0, sfs);
}
else
{
trimmed.Faces.ShrinkFaces();
DA.SetData(0, trimmed);
}
}
private void GenerateLand()
{
//for 3x
// create random points
// create curve from points
// move the curve in y direction
//get 3 curves and create loft surface
List <Curve> curves = new List <Curve>();
for (int i = 0; i < 8; i++)
{
//create random points
List <Point3d> pts = new List <Point3d>();
double dx = (this.width / 7);
for (int j = 0; j < 8; j++)
{
pts.Add(new Point3d(dx * j, 0, rnd.NextDouble() * this.height));
}
//create the curve
Curve c = Curve.CreateControlPointCurve(pts, 3);
//move the curve
double dy = (this.depth / 7);
c.Translate(0, dy * i, 0);
c.Reverse();
curves.Add(c);
}
//loft the curves
Brep[] br = Brep.CreateFromLoft(curves, Point3d.Unset, Point3d.Unset, LoftType.Normal, false);
BrepFace bf = br[0].Faces[0];
this.land = bf.DuplicateSurface();
//reparametrize the surface
this.land.SetDomain(0, new Interval(0, 1));
this.land.SetDomain(1, new Interval(0, 1));
}