public static void Main()
{
Console.WriteLine("v1=(1,1,-2.4)");
Vector3 v1 = new Vector3(1,1,-2.4);
Console.WriteLine("v2=(4,5,6)");
Vector3 v2 = new Vector3(4,5,6);
Console.WriteLine("v3=(-1,5,2)");
Vector3 v3 = new Vector3(-1,3,-2);
Console.Write("v1*v2=");
Vector3.CrossProduct(v1,v2).Vypis();
Console.Write("v1.v2=");
Console.WriteLine(Vector3.DotProduct(v1,v2));
Console.Write("v1+v2=");
(v1+v2).Vypis();
Console.Write("v1-v2=");
(v1+v2).Vypis();
Console.Write("|v1|=");
Console.WriteLine(v1.Abs());
Console.WriteLine("Normala plochy v1 v2 v3");
Vector3.GetNormVect(v1,v2,v3).Vypis();
Console.WriteLine("v1 perspektiva");
Projection p = new Projection((double)Math.PI/4,1,2.4,66);
p.Project(v1).Vypis();
Console.WriteLine("Rozmery projekcni plochy:{0},{1}",p.Width,p.Height);
Vector3 v4 = p.Project(v1);
Console.WriteLine("z original = -2.4, z projected = {0}",p.ProjectZ(-2.4));
Console.WriteLine("projekceXY v1");
p.ProjectXY(v1).Vypis();
Viewport port = new Viewport(p.Width,p.Height,200,200);
Console.WriteLine("souradnice v1 na obrazovce 200X200={0},{1}",
port.GetIntX(v4.X),port.GetIntY(v4.Y));
Console.WriteLine("v2d=(1,2),sirka obrazovky = 2,rozliseni x = 200");
Vector2 v2d = new Vector2(1,2);
int x = v2d.GetIntX(2,200);
Console.WriteLine("x souradnice bodu na obrazovce={0}",x);
Console.WriteLine("v2d=(-1,2),sirka obrazovky = 2,rozliseni x = 200");
v2d = new Vector2(-1,2);
x = v2d.GetIntX(2,200);
Console.WriteLine("x souradnice bodu na obrazovce={0}",x);
Console.WriteLine("v2d=(0,2),sirka obrazovky = 2,rozliseni x = 200");
v2d = new Vector2(0,2);
x = v2d.GetIntX(2,200);
Console.WriteLine("x souradnice bodu na obrazovce={0}",x);
Console.WriteLine("Trojuhelnik abc ma vrcholy v1,v2,v3");
Triangle3D abc = new Triangle3D(v1,v2,v3);
Console.WriteLine("normalovy vektor k rovine trojuhelniku je");
abc.GetNormVect().Vypis();
Matrix44 matrix1 = new Matrix44(new double[,]{{1,2,3,4},{5,6,7,8},
{9,10,11,12},{13,14,15,16}});
Matrix44 matrix2 = new Matrix44(new double[,]{{3,2,1,0},{0,1,2,3},
{6,8,7,4},{2,3,1,9}});
Console.WriteLine("m1=");
matrix1.Vypis();
Console.WriteLine("m2=");
matrix2.Vypis();
Console.WriteLine("m1*m2=");
Matrix44.Multiply(matrix1,matrix2).Vypis();
Console.WriteLine("Zkouska trideni");
v1.Vypis();
v2.Vypis();
v3.Vypis();
Vector3.SortX(ref v1,ref v2,ref v3);
Console.WriteLine("Setrideno podle x:");
v1.Vypis();
v2.Vypis();
v3.Vypis();
Console.WriteLine("Line2D getx gety");
Line2D line2d = new Line2D(v1,v2);
Console.WriteLine(line2d.GetX(0));
Console.WriteLine(line2d.GetY(0));
Line3D line3d = new Line3D(v1,v3);
v4 = new Vector3(line3d.GetX(v2.Y),v2.Y,line3d.GetZFromY(v2.Y));
v1.Vypis();
v2.Vypis();
v3.Vypis();
v4.Vypis();
Console.WriteLine("interpolace:");
for(int i = 0;i<10;i++)
line3d.Interpolate((double)i/(double)10).Vypis();
}
//nakresli vyplneny trojuhelnik s vrcholy v1,v2,v3
public void DrawFilledTriangle3d(Vector3 v1,Vector3 v2,Vector3 v3)
{
//transformace view maticí
v1 = v1.Transform(viewMatrix);
v2 = v2.Transform(viewMatrix);
v3 = v3.Transform(viewMatrix);
//stinovani
Vector3 normal = Vector3.GetNormVect(v1,v2,v3);
normal = normal.Normalised();
Int32 shadecolor = getShadeColor(color,normal);
//projekce
v1 = projection.Project(v1);
v2 = projection.Project(v2);
v3 = projection.Project(v3);
Vector3.SortY(ref v1,ref v2,ref v3);
Line3D line = new Line3D(v1,v3);
//spocteni pomocneho bodu v4
Vector3 v4 = new Vector3(line.GetX(v2.Y),v2.Y,line.GetZFromY(v2.Y));
Vector3.SortX(ref v2,ref v4);
//prepocteni realnych souradnic na celociselne
Vector2i v1i = new Vector2i(v1,viewport);
Vector2i v2i = new Vector2i(v2,viewport);
Vector2i v3i = new Vector2i(v3,viewport);
//urceni okrajovych primek
Line3D LeftLine = new Line3D(v1,v2);
Line3D RightLine = new Line3D(v1,v4);
//kresleni horni casti trojuhelnika
for(int i = v1i.Y;i<v2i.Y;i++)
{
//urceni okraju radku
Vector3 LeftVector = LeftLine.Interpolate((double)(v1i.Y - i)
/(double)(v1i.Y-v2i.Y));
Vector3 RightVector = RightLine.Interpolate((double)(v1i.Y - i)
/(double)(v1i.Y-v2i.Y));
//prevedeni okraju na cela cisla
int leftx = viewport.GetIntX(LeftVector.X);
int rightx = viewport.GetIntX(RightVector.X);
//primka slouzici k vypoctu hloubky pomoci interpolace
Line3D Radek = new Line3D(LeftVector,RightVector);
double z = 0;
for(int j = leftx;j<rightx;j++)
{
z = Radek.Interpolate((double)(leftx - j)/(double)(leftx - rightx)).Z;
DrawPixel2d(j,i,z,shadecolor);
}
}
//urceni okrajovych primek
LeftLine = new Line3D(v2,v3);
RightLine = new Line3D(v4,v3);
//kresleni spodni casti trojuhelnika
for(int i = v2i.Y;i<v3i.Y;i++)
{
Vector3 LeftVector = LeftLine.Interpolate((double)(v2i.Y - i)
/(double)(v2i.Y-v3i.Y));
Vector3 RightVector = RightLine.Interpolate((double)(v2i.Y - i)
/(double)(v2i.Y-v3i.Y));
//urceni okraju radku
int leftx = viewport.GetIntX(LeftVector.X);
int rightx = viewport.GetIntX(RightVector.X);
Line3D Radek = new Line3D(LeftVector,RightVector);
double z = 0;
for(int j = leftx;j<rightx;j++)
{
z = Radek.Interpolate((double)(leftx - j)/(double)(leftx - rightx)).Z;
DrawPixel2d(j,i,z,shadecolor);
}
}
}