VB 2008 GDI+ How do you rotate individual images in a list?

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I have a list of meteors that I need to rotate individually based on their rotation speed.

VB

Private Sub Form1_Paint5(ByVal sender As Object, ByVal e As  _
        System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint

        For Each I As Meteor In Meteors ' Draw and Rotate Meteors
            'Rotate I by I.Rotspeed
            e.Graphics.DrawImage(I.Type, I.Pos)
        Next
End Sub

Using another language is not an option.

Posted 29-Oct-13 6:38am

Santiago Moreno

Updated 29-Oct-13 6:52am

v2

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Sergey Alexandrovich Kryukov 29-Oct-13 17:07pm

Probably you mean VB.NET, not "VB". So, please tag accordingly.
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-10-29T11:09:00

You can use System.Drawing.Graphics.Transform:
http://msdn.microsoft.com/en-us/library/system.drawing.graphics.transform.aspx[^],
http://msdn.microsoft.com/en-us/library/system.drawing.drawing2d.matrix.aspx[^].

The idea is changing transform back and forth as you go from one draw primitive to be rendered to another. Optionally, you can rotate the same instance of transform Matrix back and forth. Beware of the rotation center: many out inquirers complained that their images "disappeared", but actually they simply rotated something around some off-center rotation center which moved their images out of the clip region.

—SA