static public List <MyPoint> Projective(IPoints figure, MyPoint startPoint, MyPoint X_AxleEnd, MyPoint Y_AxleEnd)
{
List <MyPoint> myPoints = figure.GetPoints();
float X0 = startPoint.Point.X;
float Y0 = startPoint.Point.Y;
float W0 = startPoint.Weight;
float Xx = X_AxleEnd.Point.X;
float Yx = X_AxleEnd.Point.Y;
float Wx = X_AxleEnd.Weight;
float Xy = Y_AxleEnd.Point.X;
float Yy = Y_AxleEnd.Point.Y;
float Wy = Y_AxleEnd.Weight;
foreach (MyPoint p in myPoints)
{
float X = p.Point.X;
float Y = p.Point.Y;
float W = p.Weight;
float newX = (X0 * W0 + Xx * Wx * X + Xy * Wy * Y) / (W0 + Wx * X + Wy * Y);
float newY = (Y0 * W0 + Yx * Wx * X + Yy * Wy * Y) / (W0 + Wx * X + Wy * Y);
p.SetPoint(new PointF(newX, newY));
}
return(myPoints);
}
static public List <MyPoint> Move(IPoints figure, int x_move, int y_move)
{
List <MyPoint> myPoints = figure.GetPoints();
foreach (MyPoint p in myPoints)
{
PointF newPoint = p.GetPoint();
newPoint.X += x_move;
newPoint.Y += y_move;
p.SetPoint(newPoint);
}
return(myPoints);
}
static public List <MyPoint> Turn(IPoints figure, float angle, PointF axle)
{
List <MyPoint> myPoints = figure.GetPoints();
angle *= (float)Math.PI / 180;
foreach (MyPoint p in myPoints)
{
PointF oldPoint = p.GetPoint();
PointF newPoint = new PointF();
newPoint.X = (float)(axle.X + (oldPoint.X - axle.X) * Math.Cos(angle) - (oldPoint.Y - axle.Y) * Math.Sin(angle));
newPoint.Y = (float)(axle.Y + (oldPoint.X - axle.X) * Math.Sin(angle) + (oldPoint.Y - axle.Y) * Math.Cos(angle));
p.SetPoint(newPoint);
}
return(myPoints);
}
static public List <MyPoint> Affine(IPoints figure, PointF x_Vector, PointF y_Vector, PointF startPoint)
{
List <MyPoint> myPoints = figure.GetPoints();
foreach (MyPoint p in myPoints)
{
PointF oldPoint = p.GetPoint();
PointF newPoint = new PointF();
newPoint.X = startPoint.X + x_Vector.X * oldPoint.X + y_Vector.X * oldPoint.Y;
newPoint.Y = startPoint.Y + x_Vector.Y * oldPoint.X + y_Vector.Y * oldPoint.Y;
p.SetPoint(newPoint);
}
return(myPoints);
}
private Bitmap DrawFigure(IPoints F)
{
Bitmap bmp = new Bitmap(sizeBmp);
Graphics graphics = Graphics.FromImage(bmp);
List <MyPoint> figurePoints = viewport.FactToLogic(F.GetPoints());
for (int i = 0; i < figurePoints.Count; i++)
{
if (!figurePoints[i].IsNewStart())
{
graphics.DrawLine(figurePen, figurePoints[i - 1].GetPoint(), figurePoints[i].GetPoint());
}
}
return(bmp);
}
static public List <MyPoint> Show(IPoints figure)
{
List <MyPoint> myPoints = figure.GetPoints();
float minX = float.MaxValue, minY = float.MaxValue;
foreach (MyPoint p in myPoints)
{
if (p.GetPoint().X < minX || p.GetPoint().Y < minY)
{
minX = p.GetPoint().X;
minY = p.GetPoint().Y;
}
}
foreach (MyPoint p in myPoints)
{
p.SetPoint(new PointF(p.GetPoint().X + minX, p.GetPoint().Y + minY));
}
return(myPoints);
}
