Hi,
I would like to calculate the scale of a pixel. In a program in OpenGL, I hate
it posted a Function. How can I make it for OSG?
Code:
Public Function get_Massstab() As Double
Dim modelmatrix(15) As Double
Dim projMatrix(15) As Double
Dim viewMatrix(3) As Integer
Dim tx1 As Double
Dim ty1 As Double
Dim tz1 As Double
Dim tx2 As Double
Dim ty2 As Double
Dim tz2 As Double
Dim dist As Double
Gl.glGetDoublev(Gl.GL_MODELVIEW_MATRIX, modelmatrix)
Gl.glGetDoublev(Gl.GL_PROJECTION_MATRIX, projMatrix)
Gl.glGetIntegerv(Gl.GL_VIEWPORT, viewMatrix)
gluUnProject(0, 0, 0, modelmatrix, projMatrix, viewMatrix, tx1, ty1, tz1)
gluUnProject(0, 1, 0, modelmatrix, projMatrix, viewMatrix, tx2, ty2, tz2)
'einen Pixel
dist = Math.Sqrt((tx1 - tx2) ^ 2 + (ty1 - ty2) ^ 2 + (tz1 - tz2) ^ 2)
Return dist
End Function
Thank you!
Cheers,
Anton[/code]
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http://forum.openscenegraph.org/viewtopic.php?p=61462#61462
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http://forum.openscenegraph.org//files/size1_776.png
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