MAGRAV писал(а):Возможно ли воспользоваться библиотеками OpenGL или DirectX в VB .NET? Каковы преимущества и недостатки этих вариантов? Какой из них рекомендуете мне изучить?
Qwertiy писал(а):WPF, кажется, использует другой принцип работы с графикой по сравнению с WinForms
Mikle писал(а):взять более перспективные SlimDX или, особенно, SharpDX.
Qwertiy писал(а):WPF, кажется, использует другой принцип работы с графикой по сравнению с WinForms. Может стоит попытаться использовать его?
И ещё, ты рисуешь на форме или в BitMap?
FireFenix писал(а):Главное определиться и начать изучать. И со временем всё придёт =)
MAGRAV писал(а):Qwertiy писал(а):И ещё, ты рисуешь на форме или в BitMap?
Я рисую на форме
MAGRAV писал(а):Я рисую на форме
Admiralisimys писал(а):Пример ScribbleWithBitmap.vb
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Class Satelite
Private orbCent As PointF = PointF.Empty
Private orbRadius As Single = 0.0F
Private satRadius As Single = 0.0F
Private clr As Color = Color.Black
Private br As Brush = Nothing
Private vel As Single = 0.0F
Private angelFi As Single = 0.0F
Private pos As PointF = PointF.Empty
Public Property OrbitCenter() As PointF
Get
Return orbCent
End Get
Set(value As PointF)
orbCent = value
End Set
End Property
Public Property OrbitRadius() As Single
Get
Return orbRadius
End Get
Set(value As Single)
orbRadius = value
End Set
End Property
Public Property Radius() As Single
Get
Return satRadius
End Get
Set(value As Single)
satRadius = value
End Set
End Property
Public Property Color() As Color
Get
Return clr
End Get
Set(value As Color)
clr = value
If br IsNot Nothing Then
br.Dispose()
br = Nothing
End If
br = New SolidBrush(clr)
End Set
End Property
Public Property Velocity() As Single
Get
Return vel
End Get
Set(value As Single)
vel = value
End Set
End Property
Public Property Position As PointF
Get
Return pos
End Get
Set(value As PointF)
pos = value
End Set
End Property
Public Sub update(ByRef parentCtr As Control)
'parentCtr.Invalidate(New Rectangle(Position.X - 2 * Radius, Position.Y - 2 * Radius, _
' Position.X + 2 * Radius, Position.Y + 2 * Radius))
angelFi += Velocity
If (angelFi >= 2 * Math.PI) Then
angelFi = 0.0F
ElseIf (angelFi < 0) Then
angelFi = 2 * Math.PI
End If
Position = New PointF(OrbitCenter.X + OrbitRadius * Math.Cos(angelFi), _
OrbitCenter.Y + OrbitRadius * Math.Sin(angelFi))
End Sub
Public Sub draw(ByRef grfx As Graphics)
If br IsNot Nothing Then
grfx.FillEllipse(br, Position.X - satRadius, _
Position.Y - satRadius, _
2 * satRadius, 2 * satRadius)
End If
End Sub
End Class
Class CircleAroundAnother
Inherits Form
Private tmr As New Timer
Private sat(10) As Satelite
Private bm As Bitmap
Private grfxBm As Graphics
<STAThread()> Public Shared Sub Main()
Application.Run(New CircleAroundAnother())
End Sub
Public Sub New()
Me.WindowState = FormWindowState.Maximized
End Sub
Protected Overrides Sub OnLoad(ByVal ea As EventArgs)
MyBase.OnLoad(ea)
bm = New Bitmap(ClientSize.Width, ClientSize.Height)
grfxBm = Graphics.FromImage(bm)
Dim rand As New Random(DateTime.Now.Millisecond)
Dim center As New PointF(Me.ClientSize.Width / 2, Me.ClientSize.Height / 2)
For i As Integer = 0 To sat.Length() - 1
sat(i) = New Satelite()
sat(i).Color = Color.FromArgb(255, rand.Next(255), rand.Next(255), rand.Next(255))
sat(i).OrbitCenter = center
sat(i).OrbitRadius = rand.Next(5, 500)
sat(i).Radius = rand.Next(5, 50)
sat(i).Velocity = 0.025 * rand.NextDouble()
Next i
tmr.Interval = 25
tmr.Enabled = True
AddHandler tmr.Tick, AddressOf TimerOnTick
End Sub
Private Sub TimerOnTick(ByVal obj As Object, ByVal ea As EventArgs)
For Each st In sat
If st IsNot Nothing Then st.update(Me)
Next st
'Invalidate()
grfxBm.Clear(BackColor)
For Each st In sat
If st IsNot Nothing Then st.draw(grfxBm)
Next st
Invalidate()
End Sub
Protected Overrides Sub OnPaint(ByVal pea As PaintEventArgs)
'Dim grfx As Graphics = pea.Graphics
'For Each st In sat
' If st IsNot Nothing Then st.draw(grfx)
'Next st
Me.BackgroundImage = bm
End Sub
End Class
Public Sub PainPicture(ByVal X_min, ByVal X_max, ByVal Y_min, ByVal Y_max)
Dim a1, b1, a2, b2, X1, X2, Y1, Y2 As Double
Dim Alfa, DeltaAlfa, Angle, Angle1, Angle2, AnglePointOnArc1, AnglePointOnArc2 As Double
'Dim e As Graphics = PictureBox1.CreateGraphics
Dim Pen As New System.Drawing.Pen(System.Drawing.Color.White, Width:=1) 'Задаём цвет и толщину пера
Pen.DashStyle = Drawing2D.DashStyle.Solid 'Тип пера
For i = 1 To ChisloGeomPrimitive
If TypeGeomPrimitive(i) = 110 Then 'ОТРИСОВКА ЛИНИИ
X1 = FormatX(AAA, X1_GeomPrimitive(i), X_min, X_max)
Y1 = FormatY(AAA, Y1_GeomPrimitive(i), Y_min, Y_max)
X2 = FormatX(AAA, X2_GeomPrimitive(i), X_min, X_max)
Y2 = FormatY(AAA, Y2_GeomPrimitive(i), Y_min, Y_max)
PictureBox1.CreateGraphics.DrawLine(Pen, Convert.ToSingle(X1), Convert.ToSingle(Y1), Convert.ToSingle(X2), Convert.ToSingle(Y2))
End If
If TypeGeomPrimitive(i) = 150 Then 'ОТРИСОВКА ДУГИ
AnglePointOnArc(AnglePointOnArc1, Angle1, X0_GeomPrimitive(i), Y0_GeomPrimitive(i), X1_GeomPrimitive(i), Y1_GeomPrimitive(i)) 'угол образуемый при участии точки №1
AnglePointOnArc(AnglePointOnArc2, Angle2, X0_GeomPrimitive(i), Y0_GeomPrimitive(i), X2_GeomPrimitive(i), Y2_GeomPrimitive(i)) 'угол образуемый при участии точки №2
If (Y0_GeomPrimitive(i) = Y1_GeomPrimitive(i) And Y0_GeomPrimitive(i) = Y2_GeomPrimitive(i)) Or _
(X0_GeomPrimitive(i) = X1_GeomPrimitive(i) And X0_GeomPrimitive(i) = X2_GeomPrimitive(i)) Then 'проверка на совпадение точек образующих дугу.
Angle = AnglePointOnArc1 : AnglePointOnArc2 = Angle + 2 * Pi()
b1 = lengthLine(Y0_GeomPrimitive(i), Y1_GeomPrimitive(i))
a1 = lengthLine(X0_GeomPrimitive(i), X1_GeomPrimitive(i))
If i = 1 Then
i = 2
End If
GoTo next_i
'ElseIf (Angle1 = 0 Or Pi() / 2 Or Pi() Or 3 * Pi() / 2 Or 2 * Pi()) And _
' (Angle2 = 0 Or Pi() / 2 Or Pi() Or 3 * Pi() / 2 Or 2 * Pi()) Then
ElseIf (AnglePointOnArc1 = 0 Or AnglePointOnArc1 = Pi() / 2 Or AnglePointOnArc1 = Pi() Or AnglePointOnArc1 = 3 * Pi() / 2 Or AnglePointOnArc1 = 2 * Pi()) And _
(AnglePointOnArc2 = 0 Or AnglePointOnArc2 = Pi() / 2 Or AnglePointOnArc2 = Pi() Or AnglePointOnArc2 = 3 * Pi() / 2 Or AnglePointOnArc2 = 2 * Pi()) Then
'If Angle2 = 0 Or Pi() Or 2 * Pi() Then
If AnglePointOnArc2 = 0 Or AnglePointOnArc2 = Pi() Or AnglePointOnArc2 = 2 * Pi() Then
a1 = WidthCircle(X0_GeomPrimitive(i), X1_GeomPrimitive(i), AnglePointOnArc1) 'lengthLine(X0_GeomPrimitive(i), X1_GeomPrimitive(i))
b1 = HeightCircle(Y0_GeomPrimitive(i), Y2_GeomPrimitive(i), AnglePointOnArc2) 'lengthLine(Y0_GeomPrimitive(i), Y2_GeomPrimitive(i))
'ElseIf Angle2 = Pi() / 2 Or 3 * Pi() / 2 Then
ElseIf AnglePointOnArc2 = Pi() / 2 Or AnglePointOnArc2 = 3 * Pi() / 2 Then
a1 = WidthCircle(X0_GeomPrimitive(i), X2_GeomPrimitive(i), AnglePointOnArc2) 'lengthLine(X0_GeomPrimitive(i), X2_GeomPrimitive(i))
b1 = HeightCircle(Y0_GeomPrimitive(i), Y1_GeomPrimitive(i), AnglePointOnArc1) 'lengthLine(Y0_GeomPrimitive(i), Y1_GeomPrimitive(i))
End If
If i = 1 Then
i = 2
End If
GoTo next_i
'ElseIf Angle1 = 0 Or Pi() / 2 Or Pi() Or 3 * Pi() / 2 Or 2 * Pi() Then 'проверка на равность Angle1 ={0;90;180;270;360}grad
ElseIf AnglePointOnArc1 = 0 Or AnglePointOnArc1 = Pi() / 2 Or AnglePointOnArc1 = Pi() Or AnglePointOnArc1 = 3 * Pi() / 2 Or AnglePointOnArc1 = 2 * Pi() Then
Angle = AnglePointOnArc2
b1 = HeightCircle(Y0_GeomPrimitive(i), Y2_GeomPrimitive(i), Angle) 'высота элепса которому пренадлежит дуга
a1 = WidthCircle(X0_GeomPrimitive(i), X2_GeomPrimitive(i), Angle) 'ширина элепса которому пренадлежит дуга
If i = 1 Then
i = 2
End If
GoTo next_i
'ElseIf Angle2 = 0 Or Pi() / 2 Or Pi() Or 3 * Pi() / 2 Or 2 * Pi() Then 'проверка на равность Angle2 ={0;90;180;270;360}grad
ElseIf AnglePointOnArc2 = 0 Or AnglePointOnArc2 = Pi() / 2 Or AnglePointOnArc2 = Pi() Or AnglePointOnArc2 = 3 * Pi() / 2 Or AnglePointOnArc2 = 2 * Pi() Then
Angle = AnglePointOnArc1
b1 = HeightCircle(Y0_GeomPrimitive(i), Y1_GeomPrimitive(i), Angle)
a1 = WidthCircle(X0_GeomPrimitive(i), X1_GeomPrimitive(i), Angle)
If i = 1 Then
i = 2
End If
GoTo next_i
Else 'общий случай
Angle = AnglePointOnArc1
b1 = HeightCircle(Y0_GeomPrimitive(i), Y1_GeomPrimitive(i), Angle)
a1 = WidthCircle(X0_GeomPrimitive(i), X1_GeomPrimitive(i), Angle)
If i = 1 Then
i = 2
End If
End If
'Format(Angle2, "0.00000000") = Format(2 * Pi(), "0.00000000")
next_i:
If i = 2 Then
i = i
End If
X1 = FormatX(AAA, X0_GeomPrimitive(i), X_min, X_max) 'центр дуги по X
Y1 = FormatY(AAA, Y0_GeomPrimitive(i), Y_min, Y_max) 'центр дуги по Y
X2 = FormatX(AAA, Math.Abs(2 * a1), X_min, X_max) 'ширина дуги по X
X2 = Math.Abs(X2)
Y2 = FormatY(AAA, Math.Abs(2 * b1), Y_min, Y_max) 'ширина дуги по Y
Y2 = Math.Abs(Y2)
Alfa = AnglePointOnArc1 * 180 / Pi() 'угол начала отсчёта дуги
DeltaAlfa = Delta(AnglePointOnArc1, AnglePointOnArc2) * 180 / Pi() 'угол прохода линии от начала отсчёта дуги
On Error Resume Next
If i = 2 Then
i = i
End If
PictureBox1.CreateGraphics.DrawArc(New Pen(Color.White, Width:=1), Convert.ToSingle(X1), Convert.ToSingle(Y1), _
Convert.ToSingle(X2), Convert.ToSingle(Y2), _
Convert.ToSingle(-Alfa), Convert.ToSingle(-DeltaAlfa))
If i = 1 Then
i = i
End If
End If
If i = 2 Then
i = i
End If
Next i
Beep() 'Звуковой сигнал
End Sub
- Код: Выделить всё
GoTo next_i
Qwertiy писал(а):покажу, как сделать без мигания.
MAGRAV писал(а):Qwertiy писал(а):покажу, как сделать без мигания.
Буду ждать с нетерпением!
Qwertiy писал(а):Test - Circles.7z
FireFenix писал(а):Воу воу, паринь палехче. Уже год прошёл
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