public void StartDraw()
{
var color = _form1.Options.FunState ? RandomColor(): _form1.BackColor;
_form1.Options.GraphicsObject.Clear(color);
var currentPoint = new CoorinateFloat((float)_form1.Size.Width / 2, (float)_form1.Size.Height / 2);
var centerOfCircle = new Point((int)currentPoint.X - 15, (int)currentPoint.Y - 15);
var arrow = new CustomArrow(currentPoint);
//DrawFigure(arrow.Coordinates);
DrawCircle(centerOfCircle);
DrawBigCircle(currentPoint);
var rotated1 = RotateFigure(arrow.Coordinates, new Point((int)currentPoint.X, (int)currentPoint.Y), _form1.Options.Angle1);
_form1.DrawFigureFirstTask(rotated1, _form1.Options.MyPen1);
_form1.Options.Angle1 = _form1.Options.Angle1 + _form1.Options.Step1;
var rotated2 = RotateFigure(arrow.Coordinates, new Point((int)currentPoint.X, (int)currentPoint.Y), _form1.Options.Angle2);
_form1.DrawFigureFirstTask(rotated2, _form1.Options.MyPen2);
_form1.Options.Angle2 = _form1.Options.Angle2 + _form1.Options.Step2;
var rotated3 = RotateFigure(arrow.Coordinates, new Point((int)currentPoint.X, (int)currentPoint.Y), _form1.Options.Angle3);
_form1.DrawFigureFirstTask(rotated3, _form1.Options.MyPen3);
_form1.Options.Angle3 = _form1.Options.Angle3 + _form1.Options.Step3;
}
private List <CoorinateFloat> DrawPoints()
{
var centerPoint = new CoorinateFloat((float)Size.Width / 2, (float)Size.Height / 2);
var coordinates = new List <CoorinateFloat>();
var point = new CoorinateFloat(centerPoint);
Brush aBrush = (Brush)Brushes.Black;
for (var i = 0; i < dataGridView1.Rows.Count; i++)
{
var cellX = dataGridView1.Rows[i].Cells[0].Value;
var cellY = dataGridView1.Rows[i].Cells[1].Value;
if (cellX != null && cellY != null)
{
var x = int.Parse(dataGridView1.Rows[i].Cells[0].Value.ToString());
var y = int.Parse(dataGridView1.Rows[i].Cells[1].Value.ToString());
coordinates.Add(point.Coordinate(x, y));
}
}
foreach (var dot in coordinates)
{
Options.GraphicsObject.FillRectangle(aBrush, dot.ForDrawX, dot.ForDrawY, 3, 3);
}
return(coordinates);
}
public List <CoorinateFloat> Function2Task(CoorinateFloat centerPoint)
{
var goodWith = Size.Width - OldSize.Width;
var goodHeight = Size.Height - OldSize.Height;
var haveA = float.TryParse(task2fromA.Text, out float a);
var haveB = float.TryParse(task2toB.Text, out float b);
var haveC = float.TryParse(task2constC.Text, out float c);
var coordinates = new List <CoorinateFloat>();
if (!haveA || !haveB || !haveC)
{
return(coordinates);
}
var dot = new CoorinateFloat(centerPoint);
for (float i = a; i <= b; i = (float)Math.Round(i + 1f / 100f, 2))
{
if (i == 0 || (i + 1) == 0)
{
coordinates.Add(dot.Coordinate(0, 0, true));
}
else
{
var y = (c * (i * i) - 1) / (i + 1) + (1 / i) * 20;
var x = i * 20;
coordinates.Add(dot.Coordinate(x, y));
}
}
return(coordinates);
}
private void button4_Click(object sender, EventArgs e)
{
Options.GraphicsObject.Clear(DefaultBackColor);
var currentPoint = new CoorinateFloat((float)Size.Width / 2, (float)Size.Height / 2);
var coordsList = Function2Task(currentPoint);
DrawFigureTask2(coordsList, _options.MyPen1);
}
private void DrawBigCircle(CoorinateFloat centerOfCircle)
{
var ellipseSize = 480;
var graphics = _form1.CreateGraphics();
var point = new Point((int)centerOfCircle.X - ellipseSize / 2, (int)centerOfCircle.Y - ellipseSize / 2);
var rectangle = new Rectangle(point, new Size(ellipseSize, ellipseSize));
graphics.DrawRectangle(_form1.Options.MyPen1, rectangle);
graphics.DrawEllipse(_form1.Options.MyPen1, rectangle);
}
public CoorinateFloat Coordinate(float x, float y, bool isBadPoint = false)
{
var coord =
new CoorinateFloat(x, y)
{
ForDrawX = x + _startCoordinates.X, ForDrawY = (-1) * y + _startCoordinates.Y, BadPoint = isBadPoint
};
return(coord);
}
private static List <Vektor> GetVektors(List <CoorinateFloat> coordinates, CoorinateFloat firstPoint)
{
var vektorList = new List <Vektor>();
foreach (var point in coordinates.Where(z => z != firstPoint))
{
var vektor = new Vektor(firstPoint, point);
vektorList.Add(vektor);
}
return(vektorList);
}
public CustomArrow(CoorinateFloat centerPoint)
{
var dot = new CoorinateFloat(centerPoint);
Coordinates = new List <CoorinateFloat>()
{
dot.Coordinate(0, 10),
dot.Coordinate(220, 10),
dot.Coordinate(220, 20),
dot.Coordinate(240, 0),
dot.Coordinate(220, -20),
dot.Coordinate(220, -10),
dot.Coordinate(0, -10),
dot.Coordinate(0, 10)
};
}
private static CoorinateFloat FindStartPoint(List <CoorinateFloat> coordinates)
{
var minCoordX = coordinates.Min(z => z.X);
var findFirstPoint = coordinates.Where(z => z.X == minCoordX);
var firstPoint = new CoorinateFloat(0, 0);
if (findFirstPoint.Count() > 1)
{
var minY = findFirstPoint.Min(z => z.Y);
firstPoint = findFirstPoint.FirstOrDefault(z => z.Y == minY);
}
else
{
firstPoint = findFirstPoint.FirstOrDefault();
}
return(firstPoint);
}
public Vektor(CoorinateFloat f, CoorinateFloat s)
{
OX = f.X - s.X;
OY = f.Y - s.Y;
PointEnd = s;
}
private static List <CoorinateFloat> SortedPointsByCos(List <CoorinateFloat> coordinates, CoorinateFloat firstPoint)
{
var vektorList = GetVektors(coordinates, firstPoint);
var verticalVektor = new Vektor(firstPoint, new CoorinateFloat(firstPoint.X, firstPoint.Y + 1));
var sortedVektors = vektorList.OrderByDescending(z => VektorOperation.Cosinus(verticalVektor, z)).Select(z => z.PointEnd).ToList();
return(sortedVektors);
}
public CoorinateFloat(CoorinateFloat startCoordinates)
{
_startCoordinates = startCoordinates;
}