public StraightGlulam(Curve curve, GlulamOrientation orientation, GlulamData data) : base()
{
Data = data.Duplicate();
Orientation = orientation;
Centreline = curve.DuplicateCurve();
//Centreline.Domain.MakeIncreasing();
}
public Glulam Generate()
{
GlulamData data = new GlulamData(Centreline, Width, Height, Frames.ToArray(), CrossSectionSamples, 100);
Glulam g = Glulam.CreateGlulam(Centreline, Frames.ToArray(), data);
return(g);
}
static public Glulam CreateGlulamFromBeamGeometry2(Curve curve, Mesh beam, out double true_width, out double true_height, out double true_length, double extra = 0.0)
{
Mesh mm = curve.MapToCurveSpace(beam);
BoundingBox bb = mm.GetBoundingBox(true);
double x = bb.Center.X;
double y = bb.Center.Y;
double tmin, tmax;
curve.LengthParameter(bb.Min.Z, out tmin);
curve.LengthParameter(bb.Max.Z, out tmax);
Plane twist = Plane.WorldXY;
Polyline ch;
mm = mm.FitToAxes(Plane.WorldXY, out ch, ref twist);
bb = mm.GetBoundingBox(true);
double dx = bb.Max.X - bb.Min.X;
double dy = bb.Max.Y - bb.Min.Y;
Plane cp;
curve.PerpendicularFrameAt(tmin, out cp);
double angle = Vector3d.VectorAngle(Vector3d.XAxis, twist.XAxis);
int sign = Math.Sign(twist.YAxis * Vector3d.XAxis);
Curve[] segments = curve.Split(new double[] { tmin, tmax });
if (segments.Length == 3)
{
curve = segments[1];
}
else
{
curve = segments[0];
}
Beam b = new Beam(curve, null, new Plane[] { cp });
//curve = b.CreateOffsetCurve(-x, -y);
curve = b.CreateOffsetCurve(x, y);
curve = curve.Extend(CurveEnd.Both, extra, CurveExtensionStyle.Smooth);
cp.Transform(Rhino.Geometry.Transform.Rotation(angle * sign, cp.ZAxis, cp.Origin));
GlulamData data = GlulamData.FromCurveLimits(curve, dx + extra * 2, dy + extra * 2, new Plane[] { cp });
true_length = curve.GetLength();
true_width = dx + extra * 2;
true_height = dy + extra * 2;
return(Glulam.CreateGlulam(curve, new Plane[] { cp }, data));
}
public GlulamData Duplicate()
{
GlulamData data = new GlulamData();
data.LamHeight = LamHeight;
data.LamWidth = LamWidth;
data.Samples = Samples;
data.SectionAlignment = SectionAlignment;
data.InterpolationType = InterpolationType;
data.Lamellae = new Stick[NumWidth, NumHeight];
Array.Copy(Lamellae, data.Lamellae, Lamellae.Length);
return(data);
}
public Glulam Trim(Interval domain, double overlap)
{
double l1 = Centreline.GetLength(new Interval(Centreline.Domain.Min, domain.Min));
double l2 = Centreline.GetLength(new Interval(Centreline.Domain.Min, domain.Max));
double t1, t2;
if (!Centreline.LengthParameter(l1 - overlap, out t1))
{
t1 = domain.Min;
}
if (!Centreline.LengthParameter(l2 + overlap, out t2))
{
t2 = domain.Max;
}
domain = new Interval(
Math.Max(t1, Centreline.Domain.Min),
Math.Min(t2, Centreline.Domain.Max));
double length = Centreline.GetLength(domain);
if (domain.IsDecreasing || length < overlap || length < Glulam.OverlapTolerance)
{
return(null);
}
double percentage = length / Centreline.GetLength();
GlulamData data = Data.Duplicate();
data.Samples = Math.Max(6, (int)(data.Samples * percentage));
Curve trimmed_curve = Centreline.Trim(domain);
GlulamOrientation trimmed_orientation = Orientation.Trim(domain);
trimmed_orientation.Remap(Centreline, trimmed_curve);
Glulam glulam = CreateGlulam(trimmed_curve, trimmed_orientation, data);
return(glulam);
}
public GlulamData(Curve c, double width, double height, Plane[] frames = null, int glulam_samples = 50, int curve_samples = 0)
{
double lw, lh;
GlulamData.GetLamellaSizes(c, out lw, out lh, frames, curve_samples);
lw = Math.Min(lw, width);
lh = Math.Min(lh, height);
int num_width = (int)Math.Ceiling(width / lw);
int num_height = (int)Math.Ceiling(height / lh);
Lamellae = new Stick[num_width, num_height];
LamWidth = width / num_width;
LamHeight = height / num_height;
Samples = glulam_samples;
}
public static GlulamData FromByteArray(byte[] b)
{
if (b.Length != 28)
{
throw new Exception("Byte array is wrong size for GlulamData!");
}
GlulamData data = new GlulamData();
int num_height = BitConverter.ToInt32(b, 0);
int num_width = BitConverter.ToInt32(b, 4);
data.LamHeight = BitConverter.ToDouble(b, 8);
data.LamWidth = BitConverter.ToDouble(b, 16);
data.Samples = BitConverter.ToInt32(b, 24);
data.SectionAlignment = (GlulamData.CrossSectionPosition)BitConverter.ToInt32(b, 32);
data.InterpolationType = (GlulamData.Interpolation)BitConverter.ToInt32(b, 40);
data.Lamellae = new Stick[num_width, num_height];
return(data);
}
/// <summary>
/// Split glulam into two at parameter t.
/// </summary>
/// <param name="t">Curve parameter to split glulam at.</param>
/// <returns>List of new glulams.</returns>
public List <Glulam> Split(double t)
{
if (!Centreline.Domain.IncludesParameter(t))
{
return(null);
}
double percentage = (t - Centreline.Domain.Min) / (Centreline.Domain.Max - Centreline.Domain.Min);
Plane split_plane = GetPlane(t);
Curve[] split_curves = Centreline.Split(t);
if (split_curves == null || split_curves.Length != 2)
{
return(null);
}
GlulamData Data1 = Data.Duplicate();
Data1.Samples = (int)(Data.Samples * percentage);
GlulamOrientation[] SplitOrientations = Orientation.Split(new double[] { t });
Glulam Blank1 = CreateGlulam(split_curves[0], SplitOrientations[0], Data1);
GlulamData Data2 = Data.Duplicate();
Data2.Samples = (int)(Data.Samples * (1 - percentage));
Glulam Blank2 = CreateGlulam(split_curves[1], SplitOrientations[1], Data2);
List <Glulam> blanks = new List <Glulam>()
{
Blank1, Blank2
};
return(blanks);
}
/// <summary>
/// Glulam factory methods.
/// </summary>
/// <param name="curve">Input curve.</param>
/// <param name="planes">Input orientation planes.</param>
/// <param name="data">Input glulam data.</param>
/// <returns>New glulam.</returns>
static public Glulam CreateGlulam(Curve curve, Plane[] planes = null, GlulamData data = null)
{
if (data == null)
{
data = GlulamData.FromCurveLimits(curve);
}
Glulam glulam;
if (planes == null || planes.Length < 1)
// if there are no planes defined, create defaults
{
Plane p;
if (curve.IsLinear(Tolerance))
{
curve.PerpendicularFrameAt(curve.Domain.Min, out p);
glulam = new StraightGlulam(curve, new Plane[] { p });
}
else if (curve.IsPlanar(Tolerance))
{
curve.TryGetPlane(out p, Tolerance);
glulam = new SingleCurvedGlulam(curve, new Plane[]
{
new Plane(
curve.PointAtStart,
p.ZAxis,
Vector3d.CrossProduct(
curve.TangentAtStart, p.ZAxis
)
),
new Plane(
curve.PointAtEnd,
p.ZAxis,
Vector3d.CrossProduct(
curve.TangentAtEnd, p.ZAxis
)
)
});
}
else
{
Plane start, end;
curve.PerpendicularFrameAt(curve.Domain.Min, out start);
curve.PerpendicularFrameAt(curve.Domain.Max, out end);
glulam = new DoubleCurvedGlulam(curve, new Plane[] { start, end });
}
}
else // if there are planes defined
{
if (curve.IsLinear(Tolerance))
{
if (planes.Length == 1)
{
glulam = new StraightGlulam(curve, planes);
}
else
{
glulam = new StraightGlulam(curve, planes, true);
// glulam = new StraightGlulamWithTwist(curve, planes);
Console.WriteLine("Not implemented...");
}
}
else if (curve.IsPlanar(Tolerance))
{
Plane crv_plane;
curve.TryGetPlane(out crv_plane);
/*
* Are all the planes perpendicular to the curve normal?
* Yes: basic SC Glulam
* Are all the planes consistently aligned from the curve normal?
* Yes: SC Glulam with rotated cross-section
* SC Glulam with twisting
*/
bool HasTwist = false;
foreach (Plane p in planes)
{
if (Math.Abs(p.XAxis * crv_plane.ZAxis) > Tolerance)
{
HasTwist = true;
}
}
if (HasTwist)
{
glulam = new DoubleCurvedGlulam(curve, planes);
}
else
{
Plane first = new Plane(curve.PointAtStart, crv_plane.ZAxis, Vector3d.CrossProduct(curve.TangentAtStart, crv_plane.ZAxis));
Plane last = new Plane(curve.PointAtEnd, crv_plane.ZAxis, Vector3d.CrossProduct(curve.TangentAtEnd, crv_plane.ZAxis));
glulam = new SingleCurvedGlulam(curve, new Plane[] { first, last });
}
}
else
{
Plane temp;
double t;
bool Twisted = false;
curve.PerpendicularFrameAt(curve.Domain.Min, out temp);
double Angle = Vector3d.VectorAngle(planes[0].YAxis, temp.YAxis);
for (int i = 0; i < planes.Length; ++i)
{
curve.ClosestPoint(planes[i].Origin, out t);
curve.PerpendicularFrameAt(t, out temp);
if (Math.Abs(Vector3d.VectorAngle(planes[0].YAxis, temp.YAxis) - Angle) > AngleTolerance)
{
// Twisting Glulam
Twisted = true;
break;
}
}
/*
* Are all the planes consistently aligned from some plane?
* Yes: DC Glulam with constant cross-section
* Are all the planes at a consistent angle from the perpendicular frame of the curve?
* Yes: DC Glulam with minimal twisting
* DC Glulam with twisting
*/
if (Twisted)
{
// TODO: differentiate between DC Glulam with minimal twist, and DC Glulam with twist
glulam = new DoubleCurvedGlulam(curve, planes);
}
else
{
glulam = new DoubleCurvedGlulam(curve, planes);
}
}
}
//glulam.ValidateFrames();
int nh = data.NumHeight;
int nw = data.NumWidth;
if (glulam is DoubleCurvedGlulam)
{
if (data.NumHeight < 2)
{
nh = 2;
data.LamHeight /= 2;
}
if (data.NumWidth < 2)
{
nw = 2;
data.LamWidth /= 2;
}
data.Lamellae.ResizeArray(nw, nh);
}
else if (glulam is SingleCurvedGlulam)
{
if (data.NumHeight < 2)
{
nh = 2;
data.LamHeight /= 2;
}
data.Lamellae.ResizeArray(nw, nh);
}
glulam.Data = data;
return(glulam);
}
static public Glulam CreateGlulam(Curve curve, GlulamOrientation orientation, GlulamData data)
{
Glulam glulam;
if (curve.IsLinear(Tolerance))
{
glulam = new StraightGlulam(curve, orientation, data);
}
else if (curve.IsPlanar(Tolerance))
{
/*
* if (data.NumHeight < 2)
* {
* data.Lamellae.ResizeArray(data.NumWidth, 2);
* data.LamHeight /= 2;
* }
*/
glulam = new SingleCurvedGlulam(curve, orientation, data);
}
else
{
/*
* if (data.NumHeight < 2)
* {
* data.Lamellae.ResizeArray(data.NumWidth, 2);
* data.LamHeight /= 2;
* }
*
* if (data.NumWidth < 2)
* {
* data.Lamellae.ResizeArray(2, data.NumHeight);
* data.LamWidth /= 2;
* }
*/
glulam = new DoubleCurvedGlulam(curve, orientation, data);
}
return(glulam);
}
/// <summary>
/// Create a Glulam from arbitrary geometry and a guide curve. The curve describes the fibre direction of the Glulam. This will
/// create a Glulam which completely envelops the input geometry and whose centreline is offset from the input guide curve, to
/// preserve the desired fibre orientation.
/// </summary>
/// <param name="curve">Guide curve to direct the Glulam.</param>
/// <param name="beam">Beam geometry as Mesh.</param>
/// <param name="extra">Extra material tolerance to leave on Glulam (the width and height of the Glulam will be
/// increased by this much).</param>
/// <returns>A new Glulam which envelops the input beam geometry, plus an extra tolerance as defined above.</returns>
static public Glulam CreateGlulamFromBeamGeometry(Curve curve, Mesh beam, out double true_width, out double true_height, out double true_length, double extra = 0.0)
{
double t, l;
Plane cp = Plane.Unset;
Plane cpp;
Polyline ch;
Mesh m = new Mesh();
List <Plane> frames = new List <Plane>();
double[] tt = curve.DivideByCount(20, true);
if (curve.IsLinear())
{
m = beam.DuplicateMesh();
curve.PerpendicularFrameAt(curve.Domain.Min, out cp);
m.Transform(Rhino.Geometry.Transform.PlaneToPlane(cp, Plane.WorldXY));
m.Faces.Clear();
Plane twist = Plane.WorldXY;
m = m.FitToAxes(Plane.WorldXY, out ch, ref twist);
double angle = Vector3d.VectorAngle(Vector3d.XAxis, twist.XAxis);
int sign = Math.Sign(twist.YAxis * Vector3d.XAxis);
cp.Transform(Rhino.Geometry.Transform.Rotation(angle * sign, cp.ZAxis, cp.Origin));
frames.Add(cp);
}
else if (curve.TryGetPlane(out cpp, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance))
{
for (int i = 0; i < tt.Length; ++i)
{
Vector3d xaxis = Vector3d.CrossProduct(cpp.ZAxis, curve.TangentAt(tt[i]));
cp = new Plane(curve.PointAt(tt[i]), xaxis, cpp.ZAxis);
frames.Add(cp);
}
for (int i = 0; i < beam.Vertices.Count; ++i)
{
Point3d p = new Point3d(beam.Vertices[i]);
curve.ClosestPoint(p, out t);
l = curve.GetLength(new Interval(curve.Domain.Min, t));
Vector3d xaxis = Vector3d.CrossProduct(cpp.ZAxis, curve.TangentAt(t));
cp = new Plane(curve.PointAt(t), xaxis, cpp.ZAxis);
p.Transform(Rhino.Geometry.Transform.PlaneToPlane(cp, Plane.WorldXY));
p.Z = l;
m.Vertices.Add(p);
}
}
else
{
for (int i = 0; i < beam.Vertices.Count; ++i)
{
Point3d p = new Point3d(beam.Vertices[i]);
curve.ClosestPoint(p, out t);
l = curve.GetLength(new Interval(curve.Domain.Min, t));
curve.PerpendicularFrameAt(t, out cp);
p.Transform(Rhino.Geometry.Transform.PlaneToPlane(cp, Plane.WorldXY));
p.Z = l;
m.Vertices.Add(p);
}
Plane twist = Plane.WorldXY;
m = m.FitToAxes(Plane.WorldXY, out ch, ref twist);
double angle = Vector3d.VectorAngle(Vector3d.XAxis, twist.XAxis);
int sign = Math.Sign(twist.YAxis * Vector3d.XAxis);
for (int i = 0; i < tt.Length; ++i)
{
curve.PerpendicularFrameAt(tt[i], out cp);
cp.Transform(Rhino.Geometry.Transform.Rotation(angle * sign, cp.ZAxis, cp.Origin));
frames.Add(cp);
}
}
m.Faces.AddFaces(beam.Faces);
m.FaceNormals.ComputeFaceNormals();
BoundingBox bb = m.GetBoundingBox(true);
double offsetX = bb.Center.X;
double offsetY = bb.Center.Y;
Brep bb2 = bb.ToBrep();
bb2.Transform(Rhino.Geometry.Transform.PlaneToPlane(Plane.WorldXY, cp));
true_width = bb.Max.X - bb.Min.X + extra;
true_height = bb.Max.Y - bb.Min.Y + extra;
// Now we create the glulam...
//tasTools.Lam.Glulam glulam = tasTools.Lam.Glulam.CreateGlulam(curve, frames.ToArray());
Beam temp_beam = new Beam(curve, null, frames.ToArray());
int samples = (int)(curve.GetLength() / GlulamData.DefaultSampleDistance);
Curve new_curve = temp_beam.CreateOffsetCurve(offsetX, offsetY, samples, true);
new_curve = new_curve.Extend(CurveEnd.Both, 5.0 + extra, CurveExtensionStyle.Smooth);
GlulamData data = GlulamData.FromCurveLimits(new_curve, frames.ToArray());
if (new_curve.IsPlanar())
{
data.LamHeight = Math.Ceiling(true_height);
data.Lamellae = new Stick[(int)(Math.Ceiling(true_width / data.LamWidth)), 1];
}
else if (new_curve.IsLinear())
{
data.LamHeight = Math.Ceiling(true_height);
data.LamWidth = Math.Ceiling(true_width);
data.Lamellae = new Stick[1, 1];
}
else
{
data.Lamellae = new Stick[(int)(Math.Ceiling(true_width / data.LamWidth)), (int)(Math.Ceiling(true_height / data.LamHeight))];
}
Glulam glulam = tas.Lam.Glulam.CreateGlulam(new_curve, frames.ToArray(), data);
/*
* tt = glulam.Centreline.DivideByCount(100, true);
* double maxK = 0.0;
*
* int index = 0;
* Vector3d kvec = Vector3d.Unset;
* Vector3d temp;
*
* for (int i = 0; i < tt.Length; ++i)
* {
* temp = glulam.Centreline.CurvatureAt(tt[i]);
* if (temp.Length > maxK)
* {
* index = i;
* kvec = temp;
* maxK = temp.Length;
* }
* }
* Plane frame = glulam.GetPlane(tt[index]);
*
* double min_lam_width = 1.0;
* double min_lam_height = 1.0;
* double max_lam_width = (double)((int)Math.Ceiling(true_width / 10.0) * 10.0);
* double max_lam_height = (double)((int)Math.Ceiling(true_height / 10.0) * 10.0);
*
* double lam_width = Math.Ceiling(Math.Min(1 / (Math.Abs(kvec * frame.XAxis) * 200), max_lam_width));
* double lam_height = Math.Ceiling(Math.Min(1 / (Math.Abs(kvec * frame.YAxis) * 200), max_lam_height));
*
* if (lam_width == 0.0) lam_width = max_lam_width;
* if (lam_height == 0.0) lam_height = max_lam_height;
*
* glulam.Data.LamHeight = lam_height;
* glulam.Data.LamWidth = lam_width;
* glulam.Data.NumHeight = (int)(Math.Ceiling(true_height / lam_height));
* glulam.Data.NumWidth = (int)(Math.Ceiling(true_width / lam_width));
*
* //double new_lam_height, new_lam_width;
*
* if (glulam.Data.NumHeight * glulam.Data.LamHeight - true_height > 20.0)
* glulam.Data.LamHeight = Math.Ceiling((true_height + 10.0) / glulam.Data.NumHeight);
* if (glulam.Data.NumWidth * glulam.Data.LamWidth - true_width > 20.0)
* glulam.Data.LamWidth = Math.Ceiling((true_width + 10.0) / glulam.Data.NumWidth);
*/
true_length = new_curve.GetLength();
return(glulam);
}
/// <summary>
/// Create glulam with frames that are aligned with a Surface. The input curve does not
/// necessarily have to lie on the Surface.
/// </summary>
/// <param name="curve">Input centreline of the Glulam.</param>
/// <param name="srf">Surface to align the Glulam orientation to.</param>
/// <param name="num_samples">Number of orientation frames to use for alignment.</param>
/// <returns>New Glulam oriented to the Surface.</returns>
static public Glulam CreateGlulamNormalToSurface_old(Curve curve, Brep brep, int num_samples = 20, GlulamData data = null)
{
double[] t = curve.DivideByCount(num_samples, true);
List <Plane> planes = new List <Plane>();
double u, v;
Vector3d xaxis, yaxis, zaxis;
ComponentIndex ci;
Point3d pt;
for (int i = 0; i < t.Length; ++i)
{
brep.ClosestPoint(curve.PointAt(t[i]), out pt, out ci, out u, out v, 0, out yaxis);
zaxis = curve.TangentAt(t[i]);
xaxis = Vector3d.CrossProduct(zaxis, yaxis);
planes.Add(new Plane(curve.PointAt(t[i]), xaxis, yaxis));
}
return(Glulam.CreateGlulam(curve, planes.ToArray(), data));
}
/// <summary>
/// Create glulam with frames that are aligned with a Brep. The input curve does not
/// necessarily have to lie on the Brep.
/// </summary>
/// <param name="curve">Input centreline of the glulam.</param>
/// <param name="brep">Brep to align the glulam orientation to.</param>
/// <param name="num_samples">Number of orientation frames to use for alignment.</param>
/// <returns>New Glulam oriented to the brep.</returns>
static public Glulam CreateGlulamNormalToSurface(Curve curve, Brep brep, int num_samples = 20, GlulamData data = null)
{
Plane[] frames = tas.Core.Util.Misc.FramesNormalToSurface(curve, brep, num_samples);
return(Glulam.CreateGlulam(curve, frames, data));
}
public static GlulamData FromCurveLimits(Curve c, double width, double height, Plane[] frames = null)
{
Beam beam = new Lam.Beam(c, null, frames);
double[] tt = beam.Centreline.DivideByCount(100, true);
double maxK = 0.0;
int index = 0;
Vector3d kvec = Vector3d.Unset;
Vector3d temp;
for (int i = 0; i < tt.Length; ++i)
{
temp = beam.Centreline.CurvatureAt(tt[i]);
if (temp.Length > maxK)
{
index = i;
kvec = temp;
maxK = temp.Length;
}
}
Plane frame = beam.GetPlane(tt[index]);
if (frame == null)
{
throw new Exception("Frame is null!");
}
//double max_lam_width = Math.Ceiling(width);
//double max_lam_height = Math.Ceiling(height);
double max_lam_width = width;
double max_lam_height = height;
//double lam_width = Math.Ceiling(Math.Min(1 / (Math.Abs(kvec * frame.XAxis) * Glulam.RadiusMultiplier), max_lam_width));
//double lam_height = Math.Ceiling(Math.Min(1 / (Math.Abs(kvec * frame.YAxis) * Glulam.RadiusMultiplier), max_lam_height));
double lam_width = Math.Min(1 / (Math.Abs(kvec * frame.XAxis) * Glulam.RadiusMultiplier), max_lam_width);
double lam_height = Math.Min(1 / (Math.Abs(kvec * frame.YAxis) * Glulam.RadiusMultiplier), max_lam_height);
if (lam_width == 0.0)
{
lam_width = max_lam_width;
}
if (lam_height == 0.0)
{
lam_height = max_lam_height;
}
GlulamData data = new GlulamData();
data.LamHeight = lam_height;
data.LamWidth = lam_width;
int num_height = (int)(Math.Ceiling(height / lam_height));
int num_width = (int)(Math.Ceiling(width / lam_width));
data.Lamellae = new Stick[num_width, num_height];
data.Samples = (int)(c.GetLength() / DefaultSampleDistance);
// I forget why this is here...
if (data.NumHeight * data.LamHeight - height > 20.0)
{
data.LamHeight = Math.Ceiling((height + 10.0) / data.NumHeight);
}
if (data.NumWidth * data.LamWidth - width > 20.0)
{
data.LamWidth = Math.Ceiling((width + 10.0) / data.NumWidth);
}
return(data);
}
