Graphics.DrawCurve Metode

Definisi

Ruang nama:

System.Drawing

Rakitan:

System.Drawing.Common.dll

Paket:

System.Drawing.Common v8.0.0

Menggambar spline kardinal melalui array Point struktur tertentu.

Overload

DrawCurve(Pen, PointF[], Int32, Int32, Single)	Menggambar spline kardinal melalui array PointF struktur tertentu menggunakan ketegangan tertentu. Gambar dimulai offset dari awal array.
DrawCurve(Pen, Point[], Int32, Int32, Single)	Menggambar spline kardinal melalui array Point struktur tertentu menggunakan ketegangan tertentu.
DrawCurve(Pen, PointF[], Int32, Int32)	Menggambar spline kardinal melalui array PointF struktur tertentu. Gambar dimulai offset dari awal array.
DrawCurve(Pen, PointF[], Single)	Menggambar spline kardinal melalui array PointF struktur tertentu menggunakan ketegangan tertentu.
DrawCurve(Pen, Point[], Single)	Menggambar spline kardinal melalui array Point struktur tertentu menggunakan ketegangan tertentu.
DrawCurve(Pen, PointF[])	Menggambar spline kardinal melalui array PointF struktur tertentu.
DrawCurve(Pen, Point[])	Menggambar spline kardinal melalui array Point struktur tertentu.

DrawCurve(Pen, PointF[], Int32, Int32, Single)

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array PointF struktur tertentu menggunakan ketegangan tertentu. Gambar dimulai offset dari awal array.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points, int offset, int numberOfSegments, float tension);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.PointF[] points, int offset, int numberOfSegments, float tension);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.PointF[] * int * int * single -> unit

Public Sub DrawCurve (pen As Pen, points As PointF(), offset As Integer, numberOfSegments As Integer, tension As Single)

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan gaya kurva.

points

PointF[]

PointF Array struktur yang menentukan spline.

offset

Int32

Offset dari elemen pertama dalam array points parameter ke titik awal dalam kurva.

numberOfSegments

Int32

Jumlah segmen setelah titik awal untuk disertakan dalam kurva.

tension

Single

Nilai lebih besar dari atau sama dengan 0,0F yang menentukan ketegangan kurva.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh poin untuk membentuk poligon yang tidak lengkap.

• Menentukan offset titik awal dan jumlah segmen.

• Mendefinisikan ketegangan.

• Menggambar kurva hijau terbuka (dimulai pada poin ketiga) melalui lima poin terakhir.

Metode ini mengatur ketegangan menjadi 1,0.

private:
   void DrawCurvePointFSegmentTension( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      PointF point1 = PointF(50.0F,50.0F);
      PointF point2 = PointF(100.0F,25.0F);
      PointF point3 = PointF(200.0F,5.0F);
      PointF point4 = PointF(250.0F,50.0F);
      PointF point5 = PointF(300.0F,100.0F);
      PointF point6 = PointF(350.0F,200.0F);
      PointF point7 = PointF(250.0F,250.0F);
      array<PointF>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create offset, number of segments, and tension.
      int offset = 2;
      int numSegments = 4;
      float tension = 1.0F;

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints, offset, numSegments, tension );
   }

private void DrawCurvePointFSegmentTension(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create offset, number of segments, and tension.
    int offset = 2;
    int numSegments = 4;
    float tension = 1.0F;

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, offset, numSegments, tension);
}

Private Sub DrawCurvePointFSegmentTension(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create offset, number of segments, and tension.
    Dim offset As Integer = 2
    Dim numSegments As Integer = 4
    Dim tension As Single = 1.0F

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, offset, numSegments, _
    tension)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga PointF struktur agar kurva dapat digambar.

Nilai offset parameter menentukan jumlah elemen yang akan dilewati dalam array. Elemen pertama setelah elemen yang dilewati mewakili titik awal kurva.

Nilai numberOfSegments parameter menentukan jumlah segmen, setelah titik awal, untuk menggambar dalam kurva. Nilai numberOfSegments parameter harus setidaknya 1. Nilai offset parameter ditambah nilai numberOfSegments parameter harus kurang dari jumlah elemen dalam array points parameter.

Parameter tension menentukan bentuk spline. Jika nilai tension parameter adalah 0,0F, metode ini menarik segmen garis lurus untuk menyambungkan titik. Biasanya, tension parameter kurang dari atau sama dengan 1,0F. Nilai di atas 1,0F menghasilkan hasil yang tidak biasa.

DrawCurve(Pen, Point[], Int32, Int32, Single)

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array Point struktur tertentu menggunakan ketegangan tertentu.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::Point> ^ points, int offset, int numberOfSegments, float tension);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.Point[] points, int offset, int numberOfSegments, float tension);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.Point[] * int * int * single -> unit

Public Sub DrawCurve (pen As Pen, points As Point(), offset As Integer, numberOfSegments As Integer, tension As Single)

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan gaya kurva.

points

Point[]

Point Array struktur yang menentukan spline.

offset

Int32

Offset dari elemen pertama dalam array points parameter ke titik awal dalam kurva.

numberOfSegments

Int32

Jumlah segmen setelah titik awal untuk disertakan dalam kurva.

tension

Single

Nilai lebih besar dari atau sama dengan 0,0F yang menentukan ketegangan kurva.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh poin untuk membentuk poligon yang tidak lengkap.

• Menentukan offset titik awal dan jumlah segmen.

• Mendefinisikan ketegangan.

• Menggambar kurva hijau terbuka (dimulai pada poin ketiga) melalui lima poin terakhir.

Metode ini mengatur ketegangan menjadi 1,0.

private:
   void DrawCurvePointSegmentTension( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      Point point1 = Point(50,50);
      Point point2 = Point(100,25);
      Point point3 = Point(200,5);
      Point point4 = Point(250,50);
      Point point5 = Point(300,100);
      Point point6 = Point(350,200);
      Point point7 = Point(250,250);
      array<Point>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create offset, number of segments, and tension.
      int offset = 2;
      int numSegments = 4;
      float tension = 1.0F;

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints, offset, numSegments, tension );
   }

private void DrawCurvePointSegmentTension(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    Point point1 = new Point(50, 50);
    Point point2 = new Point(100, 25);
    Point point3 = new Point(200, 5);
    Point point4 = new Point(250, 50);
    Point point5 = new Point(300, 100);
    Point point6 = new Point(350, 200);
    Point point7 = new Point(250, 250);
    Point[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create offset, number of segments, and tension.
    int offset = 2;
    int numSegments = 4;
    float tension = 1.0F;

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, offset, numSegments, tension);
}

Private Sub DrawCurvePointSegmentTension(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New Point(50, 50)
    Dim point2 As New Point(100, 25)
    Dim point3 As New Point(200, 5)
    Dim point4 As New Point(250, 50)
    Dim point5 As New Point(300, 100)
    Dim point6 As New Point(350, 200)
    Dim point7 As New Point(250, 250)
    Dim curvePoints As Point() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create offset, number of segments, and tension.
    Dim offset As Integer = 2
    Dim numSegments As Integer = 4
    Dim tension As Single = 1.0F

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, offset, numSegments, _
    tension)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga Point struktur agar kurva digambar.

Nilai offset parameter menentukan jumlah elemen yang akan dilewati dalam array. Elemen pertama setelah elemen yang dilewati mewakili titik awal kurva.

Nilai numberOfSegments parameter menentukan jumlah segmen, setelah titik awal, untuk menggambar dalam kurva. Nilai numberOfSegments parameter harus setidaknya 1. Nilai offset parameter ditambah nilai numberOfSegments parameter harus kurang dari jumlah elemen dalam array points parameter.

Parameter tension menentukan bentuk spline. Jika nilai tension parameter adalah 0,0F, metode ini menarik segmen garis lurus untuk menyambungkan titik. Biasanya, tension parameter kurang dari atau sama dengan 1,0F. Nilai di atas 1,0F menghasilkan hasil yang tidak biasa.

DrawCurve(Pen, PointF[], Int32, Int32)

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array PointF struktur tertentu. Gambar dimulai offset dari awal array.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points, int offset, int numberOfSegments);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.PointF[] points, int offset, int numberOfSegments);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.PointF[] * int * int -> unit

Public Sub DrawCurve (pen As Pen, points As PointF(), offset As Integer, numberOfSegments As Integer)

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan gaya kurva.

points

PointF[]

PointF Array struktur yang menentukan spline.

offset

Int32

Offset dari elemen pertama dalam array points parameter ke titik awal dalam kurva.

numberOfSegments

Int32

Jumlah segmen setelah titik awal untuk disertakan dalam kurva.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh poin untuk membentuk poligon yang tidak lengkap.

• Menentukan offset titik awal dan jumlah segmen.

• Menggambar kurva hijau terbuka (dimulai pada poin ketiga) melalui lima poin terakhir.

Metode ini menggunakan ketegangan default 0,5.

private:
   void DrawCurvePointFSegments( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      PointF point1 = PointF(50.0F,50.0F);
      PointF point2 = PointF(100.0F,25.0F);
      PointF point3 = PointF(200.0F,5.0F);
      PointF point4 = PointF(250.0F,50.0F);
      PointF point5 = PointF(300.0F,100.0F);
      PointF point6 = PointF(350.0F,200.0F);
      PointF point7 = PointF(250.0F,250.0F);
      array<PointF>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create offset and number of segments.
      int offset = 2;
      int numSegments = 4;

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints, offset, numSegments );
   }

private void DrawCurvePointFSegments(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create offset and number of segments.
    int offset = 2;
    int numSegments = 4;

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, offset, numSegments);
}

Private Sub DrawCurvePointFSegments(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create offset and number of segments.
    Dim offset As Integer = 2
    Dim numSegments As Integer = 4

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, offset, numSegments)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga PointF struktur agar kurva digambar.

Nilai offset parameter menentukan jumlah elemen yang akan dilewati dalam array. Elemen pertama setelah elemen yang dilewati mewakili titik awal kurva.

Nilai numberOfSegments parameter menentukan jumlah segmen, setelah titik awal, untuk menggambar dalam kurva. Nilai numberOfSegments parameter harus setidaknya 1. Nilai offset parameter ditambah nilai numberOfSegments parameter harus kurang dari jumlah elemen dalam array points parameter.

Metode ini menggunakan ketegangan default 0,5.

DrawCurve(Pen, PointF[], Single)

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array PointF struktur tertentu menggunakan ketegangan tertentu.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points, float tension);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.PointF[] points, float tension);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.PointF[] * single -> unit

Public Sub DrawCurve (pen As Pen, points As PointF(), tension As Single)

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan gaya kurva.

points

PointF[]

PointF Array struktur yang mewakili titik yang menentukan kurva.

tension

Single

Nilai lebih besar dari atau sama dengan 0,0F yang menentukan ketegangan kurva.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh titik untuk membentuk poligon yang tidak lengkap.

• Membuat pengaturan ketegangan.

• Menggambar kurva tertutup hijau terbuka melalui tujuh poin.

Metode ini menggunakan ketegangan 1,0.

private:
   void DrawCurvePointFTension( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      PointF point1 = PointF(50.0F,50.0F);
      PointF point2 = PointF(100.0F,25.0F);
      PointF point3 = PointF(200.0F,5.0F);
      PointF point4 = PointF(250.0F,50.0F);
      PointF point5 = PointF(300.0F,100.0F);
      PointF point6 = PointF(350.0F,200.0F);
      PointF point7 = PointF(250.0F,250.0F);
      array<PointF>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create tension.
      float tension = 1.0F;

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints, tension );
   }

private void DrawCurvePointFTension(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create tension.
    float tension = 1.0F;

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, tension);
}

Private Sub DrawCurvePointFTension(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create tension.
    Dim tension As Single = 1.0F

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, tension)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga PointF struktur agar kurva digambar.

Parameter tension menentukan bentuk spline. Jika nilai tension parameter adalah 0,0F, metode ini menarik segmen garis lurus untuk menyambungkan titik. Biasanya, tension parameter kurang dari atau sama dengan 1.0F. Nilai di atas 1,0F menghasilkan hasil yang tidak biasa.

DrawCurve(Pen, Point[], Single)

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array Point struktur tertentu menggunakan ketegangan tertentu.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::Point> ^ points, float tension);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.Point[] points, float tension);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.Point[] * single -> unit

Public Sub DrawCurve (pen As Pen, points As Point(), tension As Single)

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan gaya kurva.

points

Point[]

Point Array struktur yang menentukan spline.

tension

Single

Nilai lebih besar dari atau sama dengan 0,0F yang menentukan ketegangan kurva.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh titik untuk membentuk poligon yang tidak lengkap.

• Membuat pengaturan ketegangan.

• Menggambar kurva tertutup hijau terbuka melalui tujuh poin.

Metode ini menggunakan ketegangan 1,0.

private:
   void DrawCurvePointTension( PaintEventArgs^ e )
   {

      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      Point point1 = Point(50,50);
      Point point2 = Point(100,25);
      Point point3 = Point(200,5);
      Point point4 = Point(250,50);
      Point point5 = Point(300,100);
      Point point6 = Point(350,200);
      Point point7 = Point(250,250);
      array<Point>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create tension.
      float tension = 1.0F;

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints, tension );
   }

private void DrawCurvePointTension(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    Point point1 = new Point(50, 50);
    Point point2 = new Point(100, 25);
    Point point3 = new Point(200, 5);
    Point point4 = new Point(250, 50);
    Point point5 = new Point(300, 100);
    Point point6 = new Point(350, 200);
    Point point7 = new Point(250, 250);
    Point[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create tension.
    float tension = 1.0F;

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, tension);
}

Private Sub DrawCurvePointTension(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New Point(50, 50)
    Dim point2 As New Point(100, 25)
    Dim point3 As New Point(200, 5)
    Dim point4 As New Point(250, 50)
    Dim point5 As New Point(300, 100)
    Dim point6 As New Point(350, 200)
    Dim point7 As New Point(250, 250)
    Dim curvePoints As Point() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create tension.
    Dim tension As Single = 1.0F

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints, tension)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga Point struktur agar kurva digambar.

Parameter tension menentukan bentuk spline. Jika nilai tension parameter adalah 0,0F, metode ini menarik segmen garis lurus untuk menyambungkan titik. Biasanya, tension parameter kurang dari atau sama dengan 1.0F. Nilai di atas 1,0F menghasilkan hasil yang tidak biasa.

DrawCurve(Pen, PointF[])

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array PointF struktur tertentu.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.PointF[] points);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.PointF[] -> unit

Public Sub DrawCurve (pen As Pen, points As PointF())

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan gaya kurva.

points

PointF[]

PointF Array struktur yang menentukan spline.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh titik untuk membentuk poligon yang tidak lengkap.

• Menggambar kurva hijau terbuka melalui tujuh poin.

Metode ini menggunakan ketegangan default 0,5.

private:
   void DrawCurvePointF( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      PointF point1 = PointF(50.0F,50.0F);
      PointF point2 = PointF(100.0F,25.0F);
      PointF point3 = PointF(200.0F,5.0F);
      PointF point4 = PointF(250.0F,50.0F);
      PointF point5 = PointF(300.0F,100.0F);
      PointF point6 = PointF(350.0F,200.0F);
      PointF point7 = PointF(250.0F,250.0F);
      array<PointF>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints );
   }

private void DrawCurvePointF(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints);
}

Private Sub DrawCurvePointF(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga PointF struktur agar kurva digambar.

Metode ini menggunakan ketegangan default 0,5.

DrawCurve(Pen, Point[])

Sumber:

Graphics.cs

Menggambar spline kardinal melalui array Point struktur tertentu.

public:
 void DrawCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::Point> ^ points);

public void DrawCurve (System.Drawing.Pen pen, System.Drawing.Point[] points);

member this.DrawCurve : System.Drawing.Pen * System.Drawing.Point[] -> unit

Public Sub DrawCurve (pen As Pen, points As Point())

Parameter

pen

Pen

Pen yang menentukan warna, lebar, dan tinggi kurva.

points

Point[]

Point Array struktur yang menentukan spline.

Pengecualian

ArgumentNullException

penadalah null.

-atau-

pointsadalah null.

Contoh

Contoh kode berikut dirancang untuk digunakan dengan Formulir Windows, dan memerlukan PaintEventArgse, yang merupakan parameter penanganan Paint aktivitas. Kode melakukan tindakan berikut:

• Membuat pena merah dan hijau.

• Membuat tujuh poin untuk menentukan kurva.

• Menggambar enam garis lurus merah di antara tujuh titik untuk membentuk poligon yang tidak lengkap.

• Menggambar kurva hijau terbuka melalui tujuh poin.

Metode ini menggunakan ketegangan default 0,5.

private:
   void DrawCurvePoint( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      Point point1 = Point(50,50);
      Point point2 = Point(100,25);
      Point point3 = Point(200,5);
      Point point4 = Point(250,50);
      Point point5 = Point(300,100);
      Point point6 = Point(350,200);
      Point point7 = Point(250,250);
      array<Point>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Draw curve to screen.
      e->Graphics->DrawCurve( greenPen, curvePoints );
   }

private void DrawCurvePoint(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    Point point1 = new Point(50, 50);
    Point point2 = new Point(100, 25);
    Point point3 = new Point(200, 5);
    Point point4 = new Point(250, 50);
    Point point5 = new Point(300, 100);
    Point point6 = new Point(350, 200);
    Point point7 = new Point(250, 250);
    Point[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints);
}

Private Sub DrawCurvePoint(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New Point(50, 50)
    Dim point2 As New Point(100, 25)
    Dim point3 As New Point(200, 5)
    Dim point4 As New Point(250, 50)
    Dim point5 As New Point(300, 100)
    Dim point6 As New Point(350, 200)
    Dim point7 As New Point(250, 250)
    Dim curvePoints As Point() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Draw curve to screen.
    e.Graphics.DrawCurve(greenPen, curvePoints)
End Sub

Keterangan

Metode ini menggambar spline kardinal yang melewati setiap titik dalam array.

Array titik harus berisi setidaknya tiga Point struktur agar kurva digambar.

Metode ini menggunakan ketegangan default 0,5.