Scaling a collection of points(lines)?

[Craig Lucas]

Im kind of new to vb.net drawing routines. Im reading a collection of 2d
points from a
proprietary file. These points are simply for drawing lines, I can draw the
lines fine using Graphics.DrawLi ne, but I need to scale all the lines to fit
a rectangle of a given width and height.

What is the best method to do something like this? Its also important that
the drawing retain proportion within the given rectangle.

Thanks
Craig

[Ryan S. Thiele]

Have you tried percentages?

I placed a picture box on a form. Named it picturebox1

and used this code

Private Sub PictureBox1_Pai nt(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles PictureBox1.Pai nt
'Draw rectangle
Dim Rec As New Rectangle(0, 0, e.Graphics.Clip Bounds.Width,
e.Graphics.Clip Bounds.Height)
e.Graphics.Draw Rectangle(Pens. Green, Rec)

'Draw 2 lines
Dim p1 As New PointF(Rec.Widt h * 0.01, Rec.Height * 0.1) '1% of width,
10% of height
Dim p2 As New PointF(Rec.Widt h * 0.8, Rec.Height * 0.9) '80% of width,
90% of height

'Wrote out the ponts.
Console.WriteLi ne(Rec.ToString & " " & p1.ToString)
Console.WriteLi ne(rec.ToString & " " & p2.ToString)

'Draw line to box
e.Graphics.Draw Line(Pens.Blue, p1, p2)

End Sub

Private Sub Form1_Resize(By Val sender As Object, ByVal e As
System.EventArg s) Handles Me.Resize
'Code used to redraw.
Me.PictureBox1. Invalidate()
End Sub

Does this help?
Good luck!

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"Craig Lucas" <cr********@tds .netwrote in message
news:dw******** *********@newsr eading01.news.t ds.net...
Im kind of new to vb.net drawing routines. Im reading a collection of 2d
points from a
proprietary file. These points are simply for drawing lines, I can draw the
lines fine using Graphics.DrawLi ne, but I need to scale all the lines to fit
a rectangle of a given width and height.

What is the best method to do something like this? Its also important that
the drawing retain proportion within the given rectangle.

Thanks
Craig