/// <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)
{
List <Point3d> P = new List <Point3d>();
if (!DA.GetDataList(0, P))
{
return;
}
if (P == null || P.Count == 0)
{
return;
}
List <Color> colors = new List <Color>();
if (!DA.GetDataList(1, colors))
{
foreach (Point3d p in P)
{
colors.Add(Color.Black);
}
}
if (colors.Count < P.Count)
{
Color singleCol = colors[0];
colors.Clear();
foreach (Point3d p in P)
{
colors.Add(singleCol);
}
}
int s = 1;
DA.GetData(2, ref s);
if (s < 1)
{
return;
}
_size = s;
_cloud = new PointCloud();
_cloud.AddRange(P, colors);
_clip = _cloud.GetBoundingBox(false);
}
protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
Random r = new Random(13);
var plcnt = 1000000;
var edge = 10;
GetNumber gn = new GetNumber();
gn.SetCommandPrompt("How many pointsies");
gn.SetDefaultInteger(plcnt);
gn.SetUpperLimit(500000001, true);
gn.SetLowerLimit(1, true);
gn.AcceptNothing(true);
var gnrc = gn.Get();
if (gnrc == GetResult.Nothing || gnrc == GetResult.Number)
{
var nr = (int)gn.Number();
if (nr > 500000000)
{
RhinoApp.WriteLine("More than 500.000.000 points");
return(Result.Cancel);
}
pc = new PointCloud();
Point3dList p3dlist = new Point3dList(nr);
List <System.Drawing.Color> collist = new List <System.Drawing.Color>(nr);
for (int i = 0; i < nr; i++)
{
var d = (double)i;
p3dlist.Add(new Point3d(r.NextDouble() * edge, r.NextDouble() * edge, r.NextDouble() * edge));
collist.Add(System.Drawing.Color.FromArgb(r.Next(0, 255), r.Next(0, 255), r.Next(0, 255)));
}
pc.AddRange(p3dlist, collist);
cnd.ThePc = pc;
cnd.Enabled = true;
}
doc.Views.Redraw();
return(Result.Success);
}
private void ProcessingThread()
{
while (running)
{
double[] tmpList = new double[100];
for (int i = 0; i < 100; i++)
{
tmpList[i] = rnd.NextDouble();
}
this.Dispatcher.BeginInvoke(new Action(() =>
{
PointCloud.Clear();
PointCloud.AddRange(tmpList);
}), System.Windows.Threading.DispatcherPriority.Background);
Thread.Sleep(50);
}
}
protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
// TODO: complete command.
// get picture object
ObjRef objRef = null;
using (var go = new GetObject())
{
go.SetCommandPrompt("Select a picture object to sample");
go.GeometryFilter = ObjectType.Surface;
go.Get();
if (go.CommandResult() != Result.Success)
{
return(go.CommandResult());
}
objRef = go.Object(0);
}
// get rhino object
RhinoObject rhinoObject = objRef.Object();
// extract bitmap texture from render material Xml
RenderMaterial renderMaterial = rhinoObject.RenderMaterial;
XmlDocument xml = new XmlDocument();
xml.LoadXml(renderMaterial.Xml);
var node = xml.SelectSingleNode("material/simulation/Texture-1-filename");
var filePath = node.InnerText;
var bitmap = new Bitmap(Image.FromFile(filePath));
// get bounding box
var bbox = rhinoObject.Geometry.GetBoundingBox(Plane.WorldXY, out var worldBox);
// get width / height of bbox
double bboxWidth = bbox.Corner(false, true, true).DistanceTo(bbox.Corner(true, true, true));
double bboxHeight = bbox.Corner(true, false, true).DistanceTo(bbox.Corner(true, true, true));
// get width / height of image
int imgWidth = bitmap.Width;
int imgHeight = bitmap.Height;
// Calculate stretch factor
double stretchFactor = bboxWidth / imgWidth;
// Test stretch factor consistency
if (!(Math.Abs(imgHeight * stretchFactor - bboxHeight) < doc.ModelAbsoluteTolerance))
{
RhinoApp.WriteLine("Selected Picture object is scaled non-uniform! Aborting command");
return(Result.Failure);
}
// get starting position
var startPt = bbox.Min;
// create grid of points
var plane = worldBox.Plane;
plane.Origin = startPt;
Point3d[] points = new Point3d[imgWidth * imgHeight];
Color[] colors = new Color[imgWidth * imgHeight];
Vector3d[] normals = new Vector3d[imgWidth * imgHeight];
Vector3d normal = Vector3d.ZAxis;
for (int i = 0; i < imgHeight; i++)
{
for (int j = 0; j < imgWidth; j++)
{
points[(i + 1) * j] = plane.PointAt(j * stretchFactor, i * stretchFactor);
colors[(i + 1) * j] = bitmap.GetPixel(j, i);
normals[(i + 1) * j] = normal;
}
}
// create Point cloud from grid
PointCloud pc = new PointCloud();
pc.AddRange(points, normals, colors);
// add point cloud to doc
doc.Objects.AddPointCloud(pc);
// redraw
doc.Views.Redraw();
// return success
return(Result.Success);
}
/// <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)
{
///define i/o parameters
PointCloud Rhino_Cloud = new PointCloud();
Double k = 6;
/// read inputs
if (!DA.GetData(0, ref Rhino_Cloud))
{
return;
}
if (!DA.GetData("k", ref k))
{
return;
}
if (Rhino_Cloud.Count <= k)
{
throw new Size_Exception(string.Format("Use point clouds with more than k points"));
}
/// interal parameters
List <Vector3d> normals = new List <Vector3d>();
if (!Rhino_Cloud.ContainsNormals)
{
var X = Rhino_Cloud.Select(x => x.X).ToList();
var Y = Rhino_Cloud.Select(x => x.Y).ToList();
var Z = Rhino_Cloud.Select(x => x.Z).ToList();
///2.
var Matlab_X = new MWNumericArray(Rhino_Cloud.Count, 1, X.ToArray());
var Matlab_Y = new MWNumericArray(Rhino_Cloud.Count, 1, Y.ToArray());
var Matlab_Z = new MWNumericArray(Rhino_Cloud.Count, 1, Z.ToArray());
/// 3.
Segmentation.segment segment_mesh = new Segmentation.segment();
var mwca = (MWCellArray)segment_mesh.G_Normals(Matlab_X, Matlab_Y, Matlab_Z, k);
/// 4.
MWNumericArray na0 = (MWNumericArray)mwca[1];
double[] dc0 = (double[])na0.ToVector(0);
MWNumericArray na1 = (MWNumericArray)mwca[2];
double[] dc1 = (double[])na1.ToVector(0);
MWNumericArray na2 = (MWNumericArray)mwca[3];
double[] dc2 = (double[])na2.ToVector(0);
/// 5.
var Rhino_param0 = new List <double>(dc0);
var Rhino_param1 = new List <double>(dc1);
var Rhino_param2 = new List <double>(dc2);
Vector3d R = new Vector3d();
for (int i = 0; i < Rhino_param0.Count; i++)
{
R = new Vector3d(Rhino_param0[i], Rhino_param1[i], Rhino_param2[i]);
normals.Add(R);
}
}
else
{
normals = Rhino_Cloud.GetNormals().ToList();
}
PointCloud Rhino_Cloud_out = new PointCloud();
Rhino_Cloud_out.AddRange(Rhino_Cloud.GetPoints(), normals);
GH_Cloud Rhino_Cloud_out2 = new GH_Cloud(Rhino_Cloud_out);
/// 6.
DA.SetData(0, Rhino_Cloud_out2);
}
public bool Import(string path, out PointCloud pc, bool intensity = false)
{
Stopwatch watch = new Stopwatch();
watch.Start();
pc = new PointCloud();
string header;
if (!OpenFile(path, out header))
{
return(false);
}
if (!ParseHeader(header))
{
if (this.br != null)
{
this.br.Close();
}
return(false);
}
log += string.Format("time {0}\n", watch.ElapsedMilliseconds);
pc.UserDictionary.Set("width", this.width);
pc.UserDictionary.Set("height", this.height);
if (this.binary)
{
//byte[] buffer;
int log_step = this.num_points / 5;
//PCD_PointBuilder pbb;
byte[] total_buffer = br.ReadBytes(psize * num_points);
Point3d[] points = new Point3d[num_points];
Vector3d[] normals = new Vector3d[num_points];
Color[] colors = new Color[num_points];
Parallel.For(0, num_points, i => {
int total_pos = i * psize;
int pos = total_pos;
PCD_PointBuilder pbb = new PCD_PointBuilder();
for (int k = 0; k < m_fields.Count; ++k)
{
m_fields[k].read(total_buffer, pos, ref pbb);
pos += m_fields[k].size;
points[i] = pbb.Point() * scale;
normals[i] = pbb.Normal();
if (intensity)
{
colors[i] = Color.FromArgb(pbb.Intensity());
}
else
{
colors[i] = Color.FromArgb(pbb.Color());
}
}
});
pc.AddRange(points, normals, colors);
/*
* for (int i = 0, j = 0; i < this.num_points; ++i, j+=psize)
* {
* int pos = j;
* pbb = new PCD_PointBuilder();
*
* for (int k = 0; k < this.fields.Count; ++k)
* {
* this.fields[k].read(total_buffer, pos, ref pbb);
* pos += this.fields[k].size;
* }
* if (intensity)
* pc.Add(pbb.Point() * scale, pbb.Normal(), System.Drawing.Color.FromArgb(pbb.Intensity()));
* else
* pc.Add(pbb.Point() * scale, pbb.Normal(), System.Drawing.Color.FromArgb(pbb.Color()));
* }
*/
log += string.Format("time {0}\n", watch.ElapsedMilliseconds);
this.br.Close();
if (use_transform)
{
pc.Transform(this.scan_transform);
}
return(true);
}
else
{
// read all data into buffer
byte[] buffer = br.ReadBytes((int)br.BaseStream.Length - (int)br.BaseStream.Position);
// parse buffer as ASCII text
string bufferStr = System.Text.Encoding.Default.GetString(buffer);
// split string buffer into list of strings
List <string> lines = new List <string>(bufferStr.Split('\n'));
if (lines.Count != this.num_points)
{
log += "Header data doesn't match up with number of data lines!\n";
}
// parse points from line data
for (int i = 0; i < lines.Count; ++i)
{
PCD_PointBuilder pbb = new PCD_PointBuilder();
string[] tokens = lines[i].Split((char[])null, StringSplitOptions.RemoveEmptyEntries);
//log += lines[i];
//log += " " + tokens.Length.ToString() + "\n";
if (tokens.Length != this.m_fields.Count)
{
continue;
}
for (int j = 0; j < this.m_fields.Count; ++j)
{
this.m_fields[j].readASCII(tokens[j], ref pbb);
}
if (intensity)
{
pc.Add(pbb.Point() * this.scale, pbb.Normal(), System.Drawing.Color.FromArgb(pbb.Intensity()));
}
else
{
pc.Add(pbb.Point() * this.scale, pbb.Normal(), System.Drawing.Color.FromArgb(pbb.Color()));
}
}
this.br.Close();
log += string.Format("time {0}\n", watch.ElapsedMilliseconds);
if (use_transform)
{
pc.Transform(this.scan_transform);
}
log += string.Format("time {0}\n", watch.ElapsedMilliseconds);
return(true);
}
}