public void Parse(string Input)
{
double AllX = 0, AllY = 0, AllZ = 0;
double X, Y, Z;
string[] Arr = Input.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
int Length = Arr.Length;
string[] Row;
for (int i = 0; i < Length; i++)
{
if (Arr[i] != "" && Arr[i][0] != '#')
switch (Arr[i].Substring(0, 2))
{
case "v ":
Row = Arr[i].Split(null as string[], StringSplitOptions.RemoveEmptyEntries);
Array.Resize(ref Points, ++PLength);
X = double.Parse(Row[1], System.Globalization.CultureInfo.InvariantCulture);
Y = double.Parse(Row[2], System.Globalization.CultureInfo.InvariantCulture);
Z = double.Parse(Row[3], System.Globalization.CultureInfo.InvariantCulture);
AllX += X;
AllY += Y;
AllZ += Z;
Points[PLength - 1] = new Math3D.Point3D(X, Y, Z);
break;
case "f ":
Row = Arr[i].Split(' ');
string[] Temp;
int[] F = new int[3];
for (int k = 1; k <= 3; k++)
{
Temp = Row[k].Split('/');
F[k - 1] = int.Parse(Temp[0]);
}
Array.Resize(ref Polygons, ++RLength);
Polygons[RLength - 1] = new Polygon3D(F[0], F[1], F[2]);
Array.Resize(ref Edges, ELength + 3);
ELength += 3;
Edges[ELength - 3] = new Edge3D(F[0], F[1]);
Edges[ELength - 2] = new Edge3D(F[1], F[2]);
Edges[ELength - 1] = new Edge3D(F[2], F[0]);
break;
}
}
Origin = new Math3D.Point3D(AllX / PLength, AllY / PLength, AllZ / PLength);
}
public Bitmap drawCube(Point drawOrigin)
{
//FRONT FACE
//Top Left - 7
//Top Right - 4
//Bottom Left - 6
//Bottom Right - 5
//Vars
PointF[] point3D = new PointF[PLength]; //Will be actual 2D drawing points
Point tmpOrigin = new Point(0, 0);
Math3D.Point3D point0 = new Math3D.Point3D(0, 0, 0); //Used for reference
//Calculate the camera Z position to stay constant despite rotation
Math3D.Point3D anchorPoint = Points[4]; //anchor point
double cameraZ = -(((anchorPoint.X - Origin.X) * Mathes.Zoom) / Origin.X) + anchorPoint.Z;
Cam.Position = new Math3D.Point3D(Origin.X, Origin.Y, cameraZ);
//Apply Rotations, moving the cube to a corner then back to middle
Points = Math3D.Translate(Points, Origin, point0);
Points = Math3D.RotateX(Points, xRotation); //The order of these
Points = Math3D.RotateY(Points, yRotation); //rotations is the source
Points = Math3D.RotateZ(Points, zRotation); //of Gimbal Lock
Points = Math3D.Translate(Points, point0, Origin);
//Convert 3D Points to 2D
Math3D.Point3D vec;
for (int i = 0; i < PLength; i++)
{
vec = Points[i];
if (vec.Z - Cam.Position.Z >= 0)
{
point3D[i].X = (int)((double)-(vec.X - Cam.Position.X) / (-0.1f) * Mathes.Zoom) + drawOrigin.X;
point3D[i].Y = (int)((double)(vec.Y - Cam.Position.Y) / (-0.1f) * Mathes.Zoom) + drawOrigin.Y;
}
else
{
tmpOrigin.X = (int)((double)(Origin.X - Cam.Position.X) / (double)(Origin.Z - Cam.Position.Z) * Mathes.Zoom) + drawOrigin.X;
tmpOrigin.Y = (int)((double)-(Origin.Y - Cam.Position.Y) / (double)(Origin.Z - Cam.Position.Z) * Mathes.Zoom) + drawOrigin.Y;
point3D[i].X = (float)((vec.X - Cam.Position.X) / (vec.Z - Cam.Position.Z) * Mathes.Zoom + drawOrigin.X);
point3D[i].Y = (float)(-(vec.Y - Cam.Position.Y) / (vec.Z - Cam.Position.Z) * Mathes.Zoom + drawOrigin.Y);
point3D[i].X = (int)point3D[i].X;
point3D[i].Y = (int)point3D[i].Y;
}
}
//Now to plot out the points
/*Rectangle bounds = getBounds(point3D);
bounds.Width += drawOrigin.X;
bounds.Height += drawOrigin.Y;*/
Bitmap tmpBmp = new Bitmap(Width, Height);
Graphics g = Graphics.FromImage(tmpBmp);
for (int i = 0; i < ELength; i++)
{
g.DrawLine(Pens.White, point3D[Edges[i].F - 1], point3D[Edges[i].S - 1]);
}
g.Dispose(); //Clean-up
return tmpBmp;
}
