/// <summary>
/// Writes the whole B-rep scene to a given text stream (uses text variant of Stanford PLY format).
/// </summary>
/// <param name="writer">Already open text writer</param>
/// <param name="scene">Scene to write</param>
public void WriteBrepSelection(StreamWriter writer, SceneBrep scene, Selection selection,
IProgress <string> progress, CancellationToken cancel, out List <int> trianglePointers, out List <int> vertexPointers)
{
DoNormals = true;
DoTxtCoords = true;
DoColors = true;
vertexPointers = new List <int>();
trianglePointers = new List <int>();
if (scene == null || selection.GetCount() < 3)
{
return;
}
vertexPointers = selection.SelectionPointers;
Debug.Assert(TextFormat);
if (!NativeNewLine)
{
writer.NewLine = "\r"; // CR only
}
bool writeNormals = DoNormals && scene.HasNormals();
bool writeTxtCoords = DoTxtCoords && scene.HasTxtCoords();
bool writeColors = DoColors && scene.HasColors();
writer.WriteLine(HEADER);
writer.WriteLine(FORMAT_TEXT);
// vertex-header:
writer.WriteLine("{0} {1} {2}", ELEMENT, VERTEX, selection.GetCount());
writer.WriteLine("{0} float x", PROPERTY);
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? 'z' : 'y');
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? 'y' : 'z');
if (writeNormals)
{
writer.WriteLine("{0} float {1}", PROPERTY, NORMAL_X);
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? NORMAL_Z : NORMAL_Y);
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? NORMAL_Y : NORMAL_Z);
}
if (writeTxtCoords)
{
writer.WriteLine("{0} float {1}", PROPERTY, TEXTURE_S);
writer.WriteLine("{0} float {1}", PROPERTY, TEXTURE_T);
}
if (writeColors)
{
writer.WriteLine("{0} float {1}", PROPERTY, COLOR_R);
writer.WriteLine("{0} float {1}", PROPERTY, COLOR_G);
writer.WriteLine("{0} float {1}", PROPERTY, COLOR_B);
}
var triangles = selection.GetSelectedTriangles();
var list = new List <int>();
int A, B, C;
for (int j = 0; j < triangles.Count; j++)
{
scene.GetTriangleVertices(triangles[j], out A, out B, out C);
int Anew = selection.SelectionPointers.IndexOf(A);
int Bnew = selection.SelectionPointers.IndexOf(B);
int Cnew = selection.SelectionPointers.IndexOf(C);
// if this vertex was not selected, do not export the triangle containing it
if (Anew == -1 || Bnew == -1 || Cnew == -1)
{
continue;
}
// save vertex indices of triangles that were selected
// this supports bach export
trianglePointers.Add(triangles[j]);
// otherwise add vertices with their new indices to list
list.Add(Anew);
list.Add(Bnew);
list.Add(Cnew);
cancel.ThrowIfCancellationRequested();
}
// face-header:
writer.WriteLine("{0} {1} {2}", ELEMENT, FACE, list.Count / 3);
writer.WriteLine("{0} list uchar int vertex_indices", PROPERTY);
writer.WriteLine(END_HEADER);
// vertex-data:
int i;
Vector3 v3;
Vector2 v2;
StringBuilder sb = new StringBuilder();
var selectionEnum = selection.GetEnumerator();
int totalCount = selection.GetCount() + list.Count / 3;
for (i = 0; i < selection.GetCount(); i++)
{
cancel.ThrowIfCancellationRequested();
selectionEnum.MoveNext();
v3 = scene.GetVertex(selectionEnum.Current);
sb.Clear();
sb.AppendFormat(CultureInfo.InvariantCulture, "{0} {1} {2}", v3.X, v3.Y, v3.Z);
if (writeNormals)
{
v3 = scene.GetNormal(selectionEnum.Current);
sb.AppendFormat(CultureInfo.InvariantCulture, " {0} {1} {2}", v3.X, v3.Y, v3.Z);
}
if (writeTxtCoords)
{
v2 = scene.GetTxtCoord(selectionEnum.Current);
sb.AppendFormat(CultureInfo.InvariantCulture, " {0} {1}", v2.X, v2.Y);
}
if (writeColors)
{
v3 = scene.GetColor(selectionEnum.Current);
sb.AppendFormat(CultureInfo.InvariantCulture, " {0} {1} {2}", v3.X, v3.Y, v3.Z);
}
writer.WriteLine(sb.ToString());
if (progress != null)
{
progress.Report((i * 100 / totalCount).ToString());
}
}
// face-data:
for (i = 0; i < list.Count; i += 3)
{
writer.WriteLine("3 {0} {1} {2}", list[i], Orientation ? list[i + 2] : list[i + 1], Orientation ? list[i + 1] : list[i + 2]);
if (progress != null)
{
progress.Report(((i / 3 + selection.GetCount()) * 100 / totalCount).ToString());
}
cancel.ThrowIfCancellationRequested();
}
}
/// <summary>
/// Writes the whole B-rep scene to a given text stream (uses text variant of Stanford PLY format).
/// </summary>
/// <param name="writer">Already open text writer</param>
/// <param name="scene">Scene to write</param>
public void WriteBrep(StreamWriter writer, SceneBrep scene)
{
DoNormals = true;
DoTxtCoords = true;
DoColors = true;
if (scene == null ||
scene.Triangles < 1)
{
return;
}
Debug.Assert(TextFormat);
if (!NativeNewLine)
{
writer.NewLine = "\r"; // CR only
}
bool writeNormals = DoNormals && scene.HasNormals();
bool writeTxtCoords = DoTxtCoords && scene.HasTxtCoords();
bool writeColors = DoColors && scene.HasColors();
writer.WriteLine(HEADER);
writer.WriteLine(FORMAT_TEXT);
// vertex-header:
writer.WriteLine("{0} {1} {2}", ELEMENT, VERTEX, scene.Vertices);
writer.WriteLine("{0} float x", PROPERTY);
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? 'z' : 'y');
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? 'y' : 'z');
if (writeNormals)
{
writer.WriteLine("{0} float {1}", PROPERTY, NORMAL_X);
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? NORMAL_Z : NORMAL_Y);
writer.WriteLine("{0} float {1}", PROPERTY, Orientation ? NORMAL_Y : NORMAL_Z);
}
if (writeTxtCoords)
{
writer.WriteLine("{0} float {1}", PROPERTY, TEXTURE_S);
writer.WriteLine("{0} float {1}", PROPERTY, TEXTURE_T);
}
if (writeColors)
{
writer.WriteLine("{0} float {1}", PROPERTY, COLOR_R);
writer.WriteLine("{0} float {1}", PROPERTY, COLOR_G);
writer.WriteLine("{0} float {1}", PROPERTY, COLOR_B);
}
// face-header:
writer.WriteLine("{0} {1} {2}", ELEMENT, FACE, scene.Triangles);
writer.WriteLine("{0} list uchar int vertex_indices", PROPERTY);
writer.WriteLine(END_HEADER);
// vertex-data:
int i;
Vector3 v3;
Vector2 v2;
StringBuilder sb = new StringBuilder();
for (i = 0; i < scene.Vertices; i++)
{
v3 = scene.GetVertex(i);
sb.Clear();
sb.AppendFormat(CultureInfo.InvariantCulture, "{0} {1} {2}", v3.X, v3.Y, v3.Z);
if (writeNormals)
{
v3 = scene.GetNormal(i);
sb.AppendFormat(CultureInfo.InvariantCulture, " {0} {1} {2}", v3.X, v3.Y, v3.Z);
}
if (writeTxtCoords)
{
v2 = scene.GetTxtCoord(i);
sb.AppendFormat(CultureInfo.InvariantCulture, " {0} {1}", v2.X, v2.Y);
}
if (writeColors)
{
v3 = scene.GetColor(i);
sb.AppendFormat(CultureInfo.InvariantCulture, " {0} {1} {2}", v3.X, v3.Y, v3.Z);
}
writer.WriteLine(sb.ToString());
}
// face-data:
int A, B, C;
for (i = 0; i < scene.Triangles; i++)
{
scene.GetTriangleVertices(i, out A, out B, out C);
writer.WriteLine("3 {0} {1} {2}", A, Orientation ? C : B, Orientation ? B : C);
}
}