private void Set2DPoints(MyPolygon polygon, ref List <Point> ptList)
{
ptList.Clear();
for (int j = 0; j < polygon.GetSize(); j++)
{
Point pt = new Point();
var obj = polygon.Absolute(j);//[j];
pt.X = (Int32)(s * (obj.X - mCamera.X) * mScreen.Z / (obj.Z - mCamera.Z));
pt.Y = (Int32)(s * (obj.Y - mCamera.Y) * mScreen.Z / (obj.Z - mCamera.Z));
ptList.Add(pt);
}
}
private void RotateShapes(Axis axis, double degrees)
{
for (int i = 0; i < 3; i++)
{
// Go thru each point
MyPolygon po = new MyPolygon();
List <Point> ptList = new List <Point>();
float Z = 0;
for (int j = 0; j < mShape[i].GetSize(); j++)
{
Point3D pt3d = mShape[i].Absolute(j);
Point3D rotPt3d = new Point3D(0, 0, 0);
switch (axis)
{
case Axis.X:
pt3d = Point3D.Translate(pt3d, shapeOrigin, point0);
pt3d = Point3D.RotateX(pt3d, degrees);
rotPt3d = Point3D.Translate(pt3d, point0, shapeOrigin);
Z = rotPt3d.Z;
break;
case Axis.Y:
pt3d = Point3D.Translate(pt3d, shapeOrigin, point0);
pt3d = Point3D.RotateY(pt3d, degrees);
rotPt3d = Point3D.Translate(pt3d, point0, shapeOrigin);
//rotPt3d = Point3D.RotateY(pt3d, degrees);
Z = rotPt3d.Z;
break;
case Axis.Z:
//rotPt3d = Point3D.RotateZ(pt3d, degrees);
pt3d = Point3D.Translate(pt3d, shapeOrigin, point0);
pt3d = Point3D.RotateZ(pt3d, degrees);
rotPt3d = Point3D.Translate(pt3d, point0, shapeOrigin);
Z = rotPt3d.Z;
break;
}
po.Add(rotPt3d);
//Update2dPoints();
}
Set2DPoints(po, ref ptList);
screenPoints[i].PtList = ptList;
screenPoints[i].Z = (int)Z;
mShape[i] = po;
}
}
public Form1()
{
InitializeComponent();
DoubleBuffered = true;
this.Load += Form1_Load;
this.Paint += Form1_Paint;
this.KeyDown += Form1_KeyDown;
shapeOrigin.X = 0;//ClientRectangle.Width / 2;
shapeOrigin.Y = 10;
shapeOrigin.Z = 30;
mCamera = new Point3D(0, 0, 0); // Our viewpoint
//mScreen = new Point3D(0, 0, 30); // Where we project the image to
mScreen = new Point3D(0, 0, shapeOrigin.Z); // Where we project the image to
mShape[0] = new MyPolygon();
mShape[1] = new MyPolygon();
mShape[2] = new MyPolygon();
screenPoints[0] = new ShapeScreenPoints();
screenPoints[1] = new ShapeScreenPoints();
screenPoints[2] = new ShapeScreenPoints();
//mShape[0].SetSize(1);
//mShape[1].SetSize(1);
//mShape[2].SetSize(1);
//mShape[0].RemoveAll();
//mShape[1].RemoveAll();
//mShape[2].RemoveAll();
// Define a shape
mShape[0].Add(new Point3D(0, 10, 20));
mShape[0].Add(new Point3D(0, 0, 20));
mShape[0].Add(new Point3D(10, 0, 20));
mShape[0].Add(new Point3D(10, 10, 20));
mShape[0].Add(new Point3D(5, 15, 20));
mShape[0].Close();
Set2DPoints(mShape[0], ref screenPoints[0].PtList);
screenPoints[0].Z = 20;
// Shapes 1 and 2 are exactly the same as Shape 0 ...
//mShape[1] = mShape[0];
//mShape[2] = mShape[0];
mShape[1].Add(new Point3D(0, 10, 30));
mShape[1].Add(new Point3D(0, 0, 30));
mShape[1].Add(new Point3D(10, 0, 30));
mShape[1].Add(new Point3D(10, 10, 30));
mShape[1].Add(new Point3D(5, 15, 30));
mShape[1].Close();
Set2DPoints(mShape[1], ref screenPoints[1].PtList);
screenPoints[1].Z = 30;
mShape[2].Add(new Point3D(0, 10, 50));
mShape[2].Add(new Point3D(0, 0, 50));
mShape[2].Add(new Point3D(10, 0, 50));
mShape[2].Add(new Point3D(10, 10, 50));
mShape[2].Add(new Point3D(5, 15, 50));
mShape[2].Close();
Set2DPoints(mShape[2], ref screenPoints[2].PtList);
screenPoints[2].Z = 50;
// ... but at different positions
//mShape[1].PtChange(0, 0, 30);
//mShape[2].PtChange(0, 0, 50);
//mShape[1].mPosition.z = 30;
//mShape[2].mPosition.z = 50;
}