public static void ShowAngleBetween(Point pointOnline)
{
Line first = Form1.WrapperForSelectedLines;
foreach (Line second in Form1._allLines)
{
if (second.PointOnLineSegment(pointOnline) && second != first)
{
LineEquintaince frstEQ = new LineEquintaince(first);
LineEquintaince scdEQ = new LineEquintaince(second);
double radAngle = LineEquintaince.AngleBetweenTwoLines(frstEQ, scdEQ);
double degAngle = radAngle * (180 / Math.PI);
string message = "Градусы: " + Math.Round(degAngle, 1) + "\nРадианы: " + Math.Round(radAngle, 3);
string caption = "Угол между линиями";
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show(message, caption, buttons);
Form1.WrapperForSelectedLines.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
}
}
}
public static double AngleBetweenTwoLines(LineEquintaince eq1, LineEquintaince eq2)
{
double cosN1N2 = ((eq1.A * eq2.A) + (eq1.B * eq2.B)) / (Math.Sqrt(Math.Pow(eq1.A, 2) + Math.Pow(eq1.B, 2)) *
Math.Sqrt(Math.Pow(eq2.A, 2) + Math.Pow(eq2.B, 2)));
return(Math.Acos(cosN1N2));
}
public static void AlignHorizontally(MouseEventArgs e)
{
foreach (Line currentLine in Form1._allLines)
{
if (currentLine.PointOnLineSegment(e.Location))
{
if (
currentLine.LineType == Types.Single &&
!currentLine.Fixed
)
{
Line HORIZONTAL = new Line(-1, 0, 0);
HORIZONTAL.StartPoint = new Point(0, 250);
HORIZONTAL.EndPoint = new Point(930, 250);
LineEquintaince modelLineEquainteince = new LineEquintaince(currentLine);
LineEquintaince selectedLineEquainteince = new LineEquintaince(HORIZONTAL);
double anglePHI;
anglePHI = LineEquintaince.AngleBetweenTwoLines(selectedLineEquainteince, modelLineEquainteince);
double angle = anglePHI * (180 / Math.PI);
double dA = 180 - angle;
if (dA > 0)
{
dA *= (-1);
}
if (currentLine.StartPoint.Y > currentLine.EndPoint.Y)
{
dA *= (-1);
}
double rotationAngle = -dA * Math.PI / 180;
Point modifiedStart = new Point(
(int)(-Math.Sin(rotationAngle) * (currentLine.StartPoint.Y - currentLine.LineCenter.Y) + Math.Cos(rotationAngle) *
(currentLine.StartPoint.X - currentLine.LineCenter.X) + currentLine.LineCenter.X), //x1
(int)(Math.Cos(rotationAngle) * (currentLine.StartPoint.Y - currentLine.LineCenter.Y) + Math.Sin(rotationAngle) *
(currentLine.StartPoint.X - currentLine.LineCenter.X) + currentLine.LineCenter.Y) //y1
);
Point modifiedEnd = new Point(
(int)(-Math.Sin(rotationAngle) * (currentLine.EndPoint.Y - currentLine.LineCenter.Y) + Math.Cos(rotationAngle) *
(currentLine.EndPoint.X - currentLine.LineCenter.X) + currentLine.LineCenter.X), //x2
(int)(Math.Cos(rotationAngle) * (currentLine.EndPoint.Y - currentLine.LineCenter.Y) + Math.Sin(rotationAngle) *
(currentLine.EndPoint.X - currentLine.LineCenter.X) + currentLine.LineCenter.Y) //y2
);
currentLine.StartPoint = modifiedStart;
currentLine.EndPoint = modifiedEnd;
break;
}
}
}
}
public bool IsPerpendicularToLine(LineEquintaince lineEq)
{
if ((this.k * lineEq.k) >= -0.9 && (this.k * lineEq.k) <= -1.1)
{
return(true);
}
else if (double.IsInfinity(this.k) || double.IsInfinity(lineEq.K))
{
return(true);
}
else
{
return(false);
}
}
public static void MakeParallelLine(Point pointOnLine)
{
Line lineToParallel = Form1.WrapperForSelectedLines;
if (lineToParallel != null)
{
foreach (Line currentLine in Form1._allLines)
{
if (currentLine != lineToParallel)
{
if (currentLine.PointOnLineSegment(pointOnLine))
{
LineEquintaince modelLineEquainteince = new LineEquintaince(currentLine); //ОРИЕНТИР ОРТОГАНАЛИЗАЦИИИ. Уравненеия конечно
LineEquintaince selectedLineEquainteince = new LineEquintaince(lineToParallel); //ОБЪЕКТ ОРТОГАНАЛИЗАЦИИИ. Уравненеия конечно
bool alreadyParallel = (modelLineEquainteince.K == selectedLineEquainteince.K);
if (!alreadyParallel)
{
double anglePHI;
double rotationAngle;
anglePHI = LineEquintaince.AngleBetweenTwoLines(selectedLineEquainteince, modelLineEquainteince);
double angle = anglePHI * (180 / Math.PI); //ttest
double dA = 180 - angle;
//if (dA < 0)
//dA *= (-1);
if (lineToParallel.EndPoint.Y < lineToParallel.StartPoint.Y)
{
dA *= (-1);
}
rotationAngle = dA * Math.PI / 180;
if (lineToParallel.FixedPoint == FixedPointPosition.Center)
{
Point modifiedStart = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToParallel.StartPoint.Y - lineToParallel.LineCenter.Y) + Math.Cos(rotationAngle) *
(lineToParallel.StartPoint.X - lineToParallel.LineCenter.X) + lineToParallel.LineCenter.X), //x1
(int)(Math.Cos(rotationAngle) * (lineToParallel.StartPoint.Y - lineToParallel.LineCenter.Y) + Math.Sin(rotationAngle) *
(lineToParallel.StartPoint.X - lineToParallel.LineCenter.X) + lineToParallel.LineCenter.Y) //y1
);
Point modifiedEnd = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToParallel.EndPoint.Y - lineToParallel.LineCenter.Y) + Math.Cos(rotationAngle) *
(lineToParallel.EndPoint.X - lineToParallel.LineCenter.X) + lineToParallel.LineCenter.X), //x2
(int)(Math.Cos(rotationAngle) * (lineToParallel.EndPoint.Y - lineToParallel.LineCenter.Y) + Math.Sin(rotationAngle) *
(lineToParallel.EndPoint.X - lineToParallel.LineCenter.X) + lineToParallel.LineCenter.Y) //y2
);
lineToParallel.StartPoint = modifiedStart;
lineToParallel.EndPoint = modifiedEnd;
Form1.WrapperForSelectedLines.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
}
else
{
if (lineToParallel.FixedPoint == FixedPointPosition.Start)
{
Point modifiedEnd = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToParallel.EndPoint.Y - lineToParallel.StartPoint.Y) + Math.Cos(rotationAngle) *
(lineToParallel.EndPoint.X - lineToParallel.StartPoint.X) + lineToParallel.StartPoint.X), //x2
(int)(Math.Cos(rotationAngle) * (lineToParallel.EndPoint.Y - lineToParallel.StartPoint.Y) + Math.Sin(rotationAngle) *
(lineToParallel.EndPoint.X - lineToParallel.StartPoint.X) + lineToParallel.StartPoint.Y) //y2
);
lineToParallel.EndPoint = modifiedEnd;
Form1.WrapperForSelectedLines.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
}
else if (lineToParallel.FixedPoint == FixedPointPosition.End)
{
Point modifiedStart = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToParallel.StartPoint.Y - lineToParallel.EndPoint.Y) + Math.Cos(rotationAngle) *
(lineToParallel.StartPoint.X - lineToParallel.EndPoint.X) + lineToParallel.EndPoint.X), //x1
(int)(Math.Cos(rotationAngle) * (lineToParallel.StartPoint.Y - lineToParallel.EndPoint.Y) + Math.Sin(rotationAngle) *
(lineToParallel.StartPoint.X - lineToParallel.EndPoint.X) + lineToParallel.EndPoint.Y) //y1
);
lineToParallel.StartPoint = modifiedStart;
Form1.WrapperForSelectedLines.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
}
}
}
}
}
else
{
string message = "Не удается определить точку на линии.";
string caption = "Ошибка.";
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show(message, caption, buttons);
}
}
}
}
public static void MakePerpendicularLine(Point pointOnLine)
{
Line lineToBeoRthogonal = Form1.WrapperForSelectedLines;
if (lineToBeoRthogonal != null) //линия которая будет становиться перпендикулярной
{
foreach (Line currentLine in Form1._allLines)
{
if (currentLine != lineToBeoRthogonal)
{
if (currentLine.PointOnLineSegment(pointOnLine))
{
LineEquintaince modelLineEquainteince = new LineEquintaince(currentLine); //ОРИЕНТИР ОРТОГАНАЛИЗАЦИИИ. Уравненеия конечно
LineEquintaince selectedLineEquainteince = new LineEquintaince(lineToBeoRthogonal); //ОБЪЕКТ ОРТОГАНАЛИЗАЦИИИ. Уравненеия конечно
bool alreadyPerpendicullary = modelLineEquainteince.IsPerpendicularToLine(selectedLineEquainteince); //Проверка, а вдруг уже перпенды
if (!alreadyPerpendicullary)
{
double anglePHI;
double rotationAngle;
anglePHI = LineEquintaince.AngleBetweenTwoLines(selectedLineEquainteince, modelLineEquainteince);
double angle = anglePHI * (180 / Math.PI); //ttest
double dA = 90 - angle;
if (lineToBeoRthogonal.EndPoint.Y > lineToBeoRthogonal.StartPoint.Y)
{
dA *= (-1);
}
rotationAngle = -dA * Math.PI / 180;
if (lineToBeoRthogonal.FixedPoint == FixedPointPosition.Center) //если точку поворота не фиксирвали производить вращение относительно центра
{
Point modifiedStart = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToBeoRthogonal.StartPoint.Y - lineToBeoRthogonal.LineCenter.Y) + Math.Cos(rotationAngle) *
(lineToBeoRthogonal.StartPoint.X - lineToBeoRthogonal.LineCenter.X) + lineToBeoRthogonal.LineCenter.X), //x1
(int)(Math.Cos(rotationAngle) * (lineToBeoRthogonal.StartPoint.Y - lineToBeoRthogonal.LineCenter.Y) + Math.Sin(rotationAngle) *
(lineToBeoRthogonal.StartPoint.X - lineToBeoRthogonal.LineCenter.X) + lineToBeoRthogonal.LineCenter.Y) //y1
);
Point modifiedEnd = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToBeoRthogonal.EndPoint.Y - lineToBeoRthogonal.LineCenter.Y) + Math.Cos(rotationAngle) *
(lineToBeoRthogonal.EndPoint.X - lineToBeoRthogonal.LineCenter.X) + lineToBeoRthogonal.LineCenter.X), //x2
(int)(Math.Cos(rotationAngle) * (lineToBeoRthogonal.EndPoint.Y - lineToBeoRthogonal.LineCenter.Y) + Math.Sin(rotationAngle) *
(lineToBeoRthogonal.EndPoint.X - lineToBeoRthogonal.LineCenter.X) + lineToBeoRthogonal.LineCenter.Y) //y2
);
lineToBeoRthogonal.StartPoint = modifiedStart;
lineToBeoRthogonal.EndPoint = modifiedEnd;
lineToBeoRthogonal.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
} //точка вращаения зафиксирована пользователем
else
{
if (lineToBeoRthogonal.FixedPoint == FixedPointPosition.Start) //фиксирована начальная точка
{
Point modifiedEnd = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToBeoRthogonal.EndPoint.Y - lineToBeoRthogonal.StartPoint.Y) + Math.Cos(rotationAngle) *
(lineToBeoRthogonal.EndPoint.X - lineToBeoRthogonal.StartPoint.X) + lineToBeoRthogonal.StartPoint.X), //x2
(int)(Math.Cos(rotationAngle) * (lineToBeoRthogonal.EndPoint.Y - lineToBeoRthogonal.LineCenter.Y) + Math.Sin(rotationAngle) *
(lineToBeoRthogonal.EndPoint.X - lineToBeoRthogonal.StartPoint.X) + lineToBeoRthogonal.StartPoint.Y) //y2
);
lineToBeoRthogonal.EndPoint = modifiedEnd;
lineToBeoRthogonal.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
}
else if (lineToBeoRthogonal.FixedPoint == FixedPointPosition.End) //фиксирована конечная точка
{
Point modifiedStart = new Point(
(int)(-Math.Sin(rotationAngle) * (lineToBeoRthogonal.StartPoint.Y - lineToBeoRthogonal.EndPoint.Y) + Math.Cos(rotationAngle) *
(lineToBeoRthogonal.StartPoint.X - lineToBeoRthogonal.EndPoint.X) + lineToBeoRthogonal.EndPoint.X), //x1
(int)(Math.Cos(rotationAngle) * (lineToBeoRthogonal.StartPoint.Y - lineToBeoRthogonal.EndPoint.Y) + Math.Sin(rotationAngle) *
(lineToBeoRthogonal.StartPoint.X - lineToBeoRthogonal.EndPoint.X) + lineToBeoRthogonal.EndPoint.Y) //y1
);
lineToBeoRthogonal.StartPoint = modifiedStart;
lineToBeoRthogonal.PenColor = Line.GENERAL_COLOR;
Form1.WrapperForSelectedLines = null;
break;
}
}
}
}
}
}
}
}