private void EraseCenterMyCoordinate()
{
List <Point> points = MyCoordinate.DrawMyCoordinateAxis();
graphics.DrawLine(eraser, new Point(MyCoordinate.centerPoint.X, 0), new Point(MyCoordinate.centerPoint.X, MyCoordinate.centerPoint.Y * 2));
graphics.DrawLine(eraser, new Point(0, MyCoordinate.centerPoint.Y), new Point(MyCoordinate.centerPoint.X * 2, MyCoordinate.centerPoint.Y));
}
private void DrawMyShapeWithLabel(List <Point> points, bool isDefaultStyle)
{
if (isDefaultStyle)
{
DrawMyShape(points, MyCoordinate.scale);
}
else
{
DrawMyShape(points, 1);
}
Label labelStart = new Label();
labelStart.Location = new Point(points[0].X + 10, points[0].Y);
labelStart.Text = "(" + MyCoordinate.ConvertToMyPoint(points[0]).X + ", " + MyCoordinate.ConvertToMyPoint(points[0]).Y + ")";
labelStart.SendToBack();
labelStart.ForeColor = Color.Red;
labelStart.AutoSize = true;
drawPanel.Controls.Add(labelStart);
labelStart.Show();
Label labelEnd = new Label();
labelEnd.Location = new Point(points[points.Count - 1].X + 10, points[points.Count - 1].Y);
labelEnd.Text = "(" + MyCoordinate.ConvertToMyPoint(points[points.Count - 1]).X + ", " + MyCoordinate.ConvertToMyPoint(points[points.Count - 1]).Y + ")";
labelEnd.SendToBack();
labelEnd.ForeColor = Color.Red;
labelEnd.AutoSize = true;
drawPanel.Controls.Add(labelEnd);
labelEnd.Show();
}
private void DrawCenterMyCoordinate3D()
{
EraseMyCoordinate();
List <Point> netPixel = MyCoordinate.Draw3DNetPixel();
Pen redPen = new Pen(Color.Red, 5);
Pen grayPen = new Pen(Color.LightGray, 1);
for (int i = 0; i < netPixel.Count - 1; i++)
{
if (netPixel.ElementAt(i).X == netPixel.ElementAt(i + 1).X ||
netPixel.ElementAt(i).Y == netPixel.ElementAt(i + 1).Y)
{
graphics.DrawLine(grayPen, netPixel.ElementAt(i), netPixel.ElementAt(i + 1));
}
}
DrawMyShape(MyCoordinate.DrawMyCoordinateAxis3D(), 1);
}
private void DrawCenterMyCoordinate()
{
EraseMyCoordinate();
List <Point> netPixel = MyCoordinate.DrawNetPixel();
Pen redPen = new Pen(Color.Red, 5);
Pen grayPen = new Pen(Color.LightGray, 1);
for (int i = 0; i < netPixel.Count - 1; i++)
{
if (netPixel.ElementAt(i).X == netPixel.ElementAt(i + 1).X ||
netPixel.ElementAt(i).Y == netPixel.ElementAt(i + 1).Y)
{
graphics.DrawLine(grayPen, netPixel.ElementAt(i), netPixel.ElementAt(i + 1));
}
}
EraseCenterMyCoordinate();
graphics.DrawLine(redPen, new Point(MyCoordinate.centerPoint.X, 0), new Point(MyCoordinate.centerPoint.X, MyCoordinate.centerPoint.Y * 2));
graphics.DrawLine(redPen, new Point(0, MyCoordinate.centerPoint.Y), new Point(MyCoordinate.centerPoint.X * 2, MyCoordinate.centerPoint.Y));
}
private void drawPanel_MouseDown(object sender, MouseEventArgs e)
{
// xu ly ve doan thang
if (drawLine == false)
{
moving = true;
point1.X = e.X;
point1.Y = e.Y;
}
else
{
Label label = new Label();
Point point = MyCoordinate.ConvertToMyPoint(new Point(e.X, e.Y));
label.Location = new Point(e.X + 10, e.Y);
label.Text = "(" + MyCoordinate.ConvertToMyPoint(point).X + ", " + MyCoordinate.ConvertToMyPoint(point).Y + ")";
label.Text = "(" + point.X + ", " + point.Y + ")";
label.SendToBack();
label.ForeColor = Color.Red;
label.AutoSize = true;
drawPanel.Controls.Add(label);
label.Show();
if (isPoint1 == false)
{
this.transformationComboBox.Enabled = false;
point1.X = e.X;
point1.Y = e.Y;
isPoint1 = true;
if (isEllipseCenter == false && lineStyleComboBox.SelectedIndex == 6)
{
centerPoint = point1;
isPoint1 = false;
isEllipseCenter = true;
}
}
else if (isPoint1 && !isPoint2)
{
this.transformationComboBox.Enabled = true;
point2.X = e.X;
point2.Y = e.Y;
isPoint2 = true;
Point firstPoint = point1;
Point seccondPoint = point2;
List <Point> points = DrawLine.DDA(firstPoint, seccondPoint);
switch (lineStyleComboBox.SelectedIndex)
{
case 0:
{
DrawMyShape(points);
if (hasArrowCheckBox.Checked)
{
DrawArrow(point1, point2, 3);
}
break;
}
case 1:
{
points = DrawLine.DashLine(points);
DrawMyShape(points, 1);
if (hasArrowCheckBox.Checked)
{
DrawArrow(point1, point2, 3);
}
break;
}
case 2:
{
points = DrawLine.DashedLineWithOneDot(points);
DrawMyShape(points, 1);
if (hasArrowCheckBox.Checked)
{
DrawArrow(point1, point2, 3);
}
break;
}
case 3:
{
points = DrawLine.DashLineWithTwoDot(points);
DrawMyShape(points, 1);
if (hasArrowCheckBox.Checked)
{
DrawArrow(point1, point2, 3);
}
break;
}
case 4:
{
points = DrawRecangle.DDA(point1, point2);
DrawMyShape(points);
break;
}
case 5:
{
int radius = (int)Math.Sqrt(Math.Pow(point2.X - point1.X, 2) + Math.Pow(point2.Y - point1.Y, 2));
points = DrawCircle.circleBrese(point1.X, point1.Y, radius);
DrawMyShape(points);
break;
}
case 6:
{
int radiusX = (int)Math.Sqrt(Math.Pow(point1.X - centerPoint.X, 2) + Math.Pow(point1.Y - centerPoint.Y, 2));
int radiusY = (int)Math.Sqrt(Math.Pow(point2.X - centerPoint.X, 2) + Math.Pow(point2.Y - centerPoint.Y, 2));;
points = DrawEllipse.MidPoint(centerPoint, radiusX, radiusY);
DrawMyShape(points);
isEllipseCenter = false;
break;
}
default:
break;
}
shapesPoints.Add(points);
defaultPoints = shapesPoints.ElementAt(shapesPoints.Count - 1);
isPoint1 = isPoint2 = false;
}
}
}