public static void SetData(UVObjData data)
{
int line_counter = 0;
StringBuilder new_text = new StringBuilder();
int used_uvs = 0;
using (StringReader reader = new StringReader(data.file_content))
{
string current_text = reader.ReadLine();
while (current_text != null)
{
if (!current_text.StartsWith("vt ") || !data.replace_lines.Contains(line_counter))
{
line_counter++;
new_text.AppendLine(current_text);
current_text = reader.ReadLine();
continue;
}
Vector uv = data.uvs[used_uvs++];
new_text.AppendLine(string.Format("vt {0} {1}", uv.X, uv.Y));
current_text = reader.ReadLine();
line_counter++;
}
}
File.WriteAllText(data.target_file, new_text.ToString());
}
public HashSet <int> replace_lines; // lines of the file which will be replaced on export
public UVObjData Clone()
{
UVObjData clone = new UVObjData();
clone.uvs = new Vector[uvs.Length];
clone.tris = new int[tris.Length];
clone.replace_lines = new HashSet <int>(replace_lines);
clone.file_content = file_content;
clone.target_file = target_file;
for (int i = 0; i < uvs.Length; i++)
{
clone.uvs[i] = uvs[i];
}
for (int i = 0; i < tris.Length; i++)
{
clone.tris[i] = tris[i];
}
return(clone);
}
public static UVObjData GetData(string path)
{
UVObjData data = new UVObjData();
data.target_file = path;
List <int[]> face_list = new List <int[]>();
List <Vector> uv_list = new List <Vector>();
List <int> tri_list = new List <int>();
data.replace_lines = new HashSet <int>(); //point certain lines of the file to corresponding replacement uv indices
char[] split_id = { ' ' };
char[] face_split_id = { '/' };
data.file_content = File.ReadAllText(path);
int line_counter = 0;
using (StringReader reader = new StringReader(data.file_content))
{
string current_text = reader.ReadLine();
while (current_text != null)
{
if (!current_text.StartsWith("vt ") && !current_text.StartsWith("f ") && !current_text.StartsWith("v ") && !current_text.StartsWith("vn "))
{
line_counter++;
current_text = reader.ReadLine();
continue;
}
current_text = current_text.Replace(" ", " ");
string[] broken = current_text.Split(split_id);
if (broken[0] == "vt")
{
uv_list.Add(new Vector(Convert.ToSingle(broken[1]), Convert.ToSingle(broken[2])));
data.replace_lines.Add(line_counter);
}
else if (broken[0] == "f")
{
int j = 1;
List <int> uv_face = new List <int>();
while (j < broken.Length && ("" + broken[j]).Length > 0)
{
int[] temp = new int[3];
string[] part = broken[j].Split(face_split_id, 3); //Separate the face into individual components (vert, uv, normal)
temp[0] = Convert.ToInt32(part[0]);
if (part.Length > 1) //Some .obj files skip UV and normal
{
if (part[1] != "") //Some .obj files skip the uv and not the normal
{
temp[1] = Convert.ToInt32(part[1]);
}
temp[2] = Convert.ToInt32(part[2]);
}
j++;
if (temp[1] > 0)
{
uv_face.Add(temp[1] - 1);
}
face_list.Add(temp);
}
j = 1;
while (j + 2 <= uv_face.Count) //Create triangles out of the face data. There will generally be more than 1 triangle per face.
{
tri_list.Add(uv_face[0]);
tri_list.Add(uv_face[j]);
tri_list.Add(uv_face[j + 1]);
j++;
}
}
else
{
//Debug.LogError("Should not be able to get here...");
}
current_text = reader.ReadLine();
line_counter++;
}
}
data.uvs = uv_list.ToArray();
data.tris = tri_list.ToArray();
return(data);
}
private void Button_play_Click(object sender, RoutedEventArgs e)
{
// if the nester is working cancel the work
if (_nester != null && _nester.IsBusy())
{
_nester.CancelExecute();
Debug.WriteLine("cancelling...");
return;
}
// get the path of the .obj
string file_path = string.Empty;
OpenFileDialog open_file_dialog = new OpenFileDialog();
open_file_dialog.Filter = "Object files (*.obj; *.OBJ)|*.obj;*.OBJ";
if (open_file_dialog.ShowDialog() == true)
{
file_path = open_file_dialog.FileName;
}
// if no path then return
if (string.IsNullOrEmpty(file_path))
{
return;
}
// try to get the model data
UVObjData data = null;
try
{
data = ObjHandler.GetData(file_path);
}
catch { return; }
// if data is null return
if (data == null)
{
return;
}
// get the uv verts and triangles
Vector64[] pts = data.uvs.Select(p => new Vector64(p.X, p.Y)).ToArray();
int[] tris = data.tris;
// get the canvas container
Rect64 container = new Rect64(0, canvas_main.Height, canvas_main.Width, 0);
// create a new nester object and populate its data
_nester = new Nester();
_handles = _nester.AddUVPolygons(pts, tris, 0.0);
// set the nesting commands
_nester.ClearCommandBuffer();
_nester.ResetTransformLib();
canvas_main.Children.Clear();
_nester.CMD_OptimalRotation(null);
_nester.CMD_Nest(null, NFPQUALITY.Full);
_nester.CMD_Refit(container, false, null);
// change the button text and execute work
button_play.Content = STOP;
_nester.ExecuteCommandBuffer(NesterProgress, NesterComplete);
}