private void ReadObjFile(string pathObjFile)
{
using (var myStream = new FileStream(pathObjFile, FileMode.Open))
{
var myReader = new StreamReader(myStream);
var coord = new double[3];
var tri = new int[3];
var tex = new int[4];
var quad = new int[4];
string line;
while ((line = myReader.ReadLine()) != null)
{
if (line != "")
{
line = line.Trim(' ');
string[] array;
switch (line[0])
{
case 'v':
{
if (line[1] != 't' && line[1] != 'n')
{
line = line.Trim('v', ' ');
array = line.Split(' ');
for (var i = 0; i < 3; i++)
{
coord[i] = double.Parse(array[i], CultureInfo.InvariantCulture);
}
var v = new Vertex(coord[0], coord[1], coord[2]);
Vertices.Add(v);
}
else
{
if (line[1] == 't')
{
line = line.Trim('t', 'v', ' ');
array = line.Split(' ');
for (var i = 0; i < 2; i++)
{
coord[i] = double.Parse(array[i], CultureInfo.InvariantCulture);
}
var v = new Vertex2D(coord[0], coord[1]);
TextureCoordinates.Add(v);
}
}
break;
}
case 'f':
{
line = line.Trim('f', ' ');
array = line.Split(new[] { ' ', '/' },
StringSplitOptions.RemoveEmptyEntries);
if (array.Length == 9)
{
for (int i = 0, j = 0; i < 3 && j < array.Length; i++, j += 3)
{
tri[i] = int.Parse(array[j]);
tex[i] = int.Parse(array[j + 1]);
}
var t = new Triangle(Vertices[tri[0] - 1], Vertices[tri[1] - 1],
Vertices[tri[2] - 1], TextureCoordinates[tex[0] - 1],
TextureCoordinates[tex[1] - 1], TextureCoordinates[tex[2] - 1]);
Triangles.Add(t);
}
if (array.Length == 12)
{
for (int i = 0, j = 0; i < 4 && j < array.Length; i++, j += 3)
{
quad[i] = int.Parse(array[j]);
tex[i] = int.Parse(array[j + 1]);
}
var q = new Quad(Vertices[quad[0] - 1], Vertices[quad[1] - 1],
Vertices[quad[2] - 1],
Vertices[quad[3] - 1], TextureCoordinates[tex[0] - 1],
TextureCoordinates[tex[1] - 1], TextureCoordinates[tex[2] - 1],
TextureCoordinates[tex[3] - 1]);
Quads.Add(q);
}
}
break;
}
}
}
}
}
//Add quad to the list
public void AddQuad(Quad quad)
{
Quads.Add(quad);
}
public HinhChop(float a, float height)
{
VertexList[] quads = new VertexList[5];
for (int i = 0; i < 5; i++)
{
quads[i] = new VertexList();
}
float half_a = a / 2;
float half_height = height / 2;
Vertex vertex1, vertex2, vertex3, vertex4;
List <Vertex> vertices;
// trái
vertex1 = new Vertex {
X = 0.0f, Y = half_height, Z = 0.0f
};
vertex2 = new Vertex {
X = -half_a, Y = -half_height, Z = -half_a
};
vertex3 = new Vertex {
X = half_a, Y = -half_height, Z = -half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3
};
quads[0].Vertices = vertices;
Quads.Add(quads[0]);
// sau
vertex1 = new Vertex {
X = 0.0f, Y = half_height, Z = 0.0f
};
vertex2 = new Vertex {
X = -half_a, Y = -half_height, Z = half_a
};
vertex3 = new Vertex {
X = -half_a, Y = -half_height, Z = -half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3
};
quads[1].Vertices = vertices;
Quads.Add(quads[1]);
// phải
vertex1 = new Vertex {
X = 0.0f, Y = half_height, Z = 0.0f
};
vertex2 = new Vertex {
X = half_a, Y = -half_height, Z = half_a
};
vertex3 = new Vertex {
X = -half_a, Y = -half_height, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3
};
quads[2].Vertices = vertices;
Quads.Add(quads[2]);
// trước
vertex1 = new Vertex {
X = 0.0f, Y = half_height, Z = 0.0f
};
vertex2 = new Vertex {
X = half_a, Y = -half_height, Z = -half_a
};
vertex3 = new Vertex {
X = half_a, Y = -half_height, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3
};
quads[3].Vertices = vertices;
Quads.Add(quads[3]);
// dưới
vertex1 = new Vertex {
X = -half_a, Y = -half_height, Z = -half_a
};
vertex2 = new Vertex {
X = half_a, Y = -half_height, Z = -half_a
};
vertex3 = new Vertex {
X = half_a, Y = -half_height, Z = half_a
};
vertex4 = new Vertex {
X = -half_a, Y = -half_height, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[4].Vertices = vertices;
Quads.Add(quads[4]);
}
public LangTru(float size, float height)
{
VertexList[] quads = new VertexList[5];
for (int i = 0; i < 5; i++)
{
quads[i] = new VertexList();
}
float a, b, c;
a = size * (float)Math.Sqrt(6) / 6;
b = size * (float)(-Math.Sqrt(6) + 3 * Math.Sqrt(2)) / 12;
c = size * (float)(-Math.Sqrt(6) - 3 * Math.Sqrt(2)) / 12;
float half_height = height / 2;
Vertex vertex1, vertex2, vertex3, vertex4;
List <Vertex> vertices;
// vẽ các mặt của hình lăng trụ
vertex1 = new Vertex {
X = b, Y = -half_height, Z = c
};
vertex2 = new Vertex {
X = a, Y = -half_height, Z = a
};
vertex3 = new Vertex {
X = a, Y = half_height, Z = a
};
vertex4 = new Vertex {
X = b, Y = half_height, Z = c
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[0].Vertices = vertices;
Quads.Add(quads[0]);
vertex1 = new Vertex {
X = a, Y = -half_height, Z = a
};
vertex2 = new Vertex {
X = c, Y = -half_height, Z = b
};
vertex3 = new Vertex {
X = c, Y = half_height, Z = b
};
vertex4 = new Vertex {
X = a, Y = half_height, Z = a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[1].Vertices = vertices;
Quads.Add(quads[1]);
vertex1 = new Vertex {
X = b, Y = -half_height, Z = c
};
vertex2 = new Vertex {
X = c, Y = -half_height, Z = b
};
vertex3 = new Vertex {
X = c, Y = half_height, Z = b
};
vertex4 = new Vertex {
X = b, Y = half_height, Z = c
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[2].Vertices = vertices;
Quads.Add(quads[2]);
vertex1 = new Vertex {
X = b, Y = -half_height, Z = c
};
vertex2 = new Vertex {
X = a, Y = -half_height, Z = a
};
vertex3 = new Vertex {
X = c, Y = -half_height, Z = b
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3
};
quads[3].Vertices = vertices;
Quads.Add(quads[3]);
vertex1 = new Vertex {
X = b, Y = half_height, Z = c
};
vertex2 = new Vertex {
X = a, Y = half_height, Z = a
};
vertex3 = new Vertex {
X = c, Y = half_height, Z = b
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3
};
quads[4].Vertices = vertices;
Quads.Add(quads[4]);
}
public LapPhuong(float a)
{
VertexList[] quads = new VertexList[6];
for (int i = 0; i < 6; i++)
{
quads[i] = new VertexList();
}
float half_a = a / 2;
// dưới
Vertex vertex1 = new Vertex {
X = -half_a, Y = -half_a, Z = -half_a
};
Vertex vertex2 = new Vertex {
X = half_a, Y = -half_a, Z = -half_a
};
Vertex vertex3 = new Vertex {
X = half_a, Y = -half_a, Z = half_a
};
Vertex vertex4 = new Vertex {
X = -half_a, Y = -half_a, Z = half_a
};
List <Vertex> vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[0].Vertices = vertices;
Quads.Add(quads[0]);
// trái
vertex1 = new Vertex {
X = -half_a, Y = -half_a, Z = -half_a
};
vertex2 = new Vertex {
X = -half_a, Y = half_a, Z = -half_a
};
vertex3 = new Vertex {
X = half_a, Y = half_a, Z = -half_a
};
vertex4 = new Vertex {
X = half_a, Y = -half_a, Z = -half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[1].Vertices = vertices;
Quads.Add(quads[1]);
// phía sau
vertex1 = new Vertex {
X = -half_a, Y = -half_a, Z = -half_a
};
vertex2 = new Vertex {
X = -half_a, Y = half_a, Z = -half_a
};
vertex3 = new Vertex {
X = -half_a, Y = half_a, Z = half_a
};
vertex4 = new Vertex {
X = -half_a, Y = -half_a, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[2].Vertices = vertices;
Quads.Add(quads[2]);
// phải
vertex1 = new Vertex {
X = -half_a, Y = half_a, Z = half_a
};
vertex2 = new Vertex {
X = half_a, Y = half_a, Z = half_a
};
vertex3 = new Vertex {
X = half_a, Y = -half_a, Z = half_a
};
vertex4 = new Vertex {
X = -half_a, Y = -half_a, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[3].Vertices = vertices;
Quads.Add(quads[3]);
// phía trước
vertex1 = new Vertex {
X = half_a, Y = half_a, Z = half_a
};
vertex2 = new Vertex {
X = half_a, Y = half_a, Z = -half_a
};
vertex3 = new Vertex {
X = half_a, Y = -half_a, Z = -half_a
};
vertex4 = new Vertex {
X = half_a, Y = -half_a, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[4].Vertices = vertices;
Quads.Add(quads[4]);
// đằng trên
vertex1 = new Vertex {
X = -half_a, Y = half_a, Z = -half_a
};
vertex2 = new Vertex {
X = half_a, Y = half_a, Z = -half_a
};
vertex3 = new Vertex {
X = half_a, Y = half_a, Z = half_a
};
vertex4 = new Vertex {
X = -half_a, Y = half_a, Z = half_a
};
vertices = new List <Vertex> {
vertex1, vertex2, vertex3, vertex4
};
quads[5].Vertices = vertices;
Quads.Add(quads[5]);
}