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Set Camera Angle

Demonstrates how to set the camera angle using RhinoScript.

VBScript

Sub TestSetCameraAngle()

  ' Local constants (could easily prompt for these...)
  Const horz_angle = 7.3
  Const vert_angle = 5.5
  Const horz_res = 1200

  ' Local variables
  Dim view, vert_res

  ' Current view must be a perspective view
  view = Rhino.CurrentView()
  If Not Rhino.IsViewPerspective(view) Then
    Call Rhino.Print("Select a perspective view and rerun the script.")
    Exit Sub
  End If

  ' Calculate vertical resolution based on existing parameters    
  vert_res = CInt(Round((vert_angle * 2) / (horz_angle * 2) * horz_res))

  ' Set the viewport size
  Call Rhino.Command("_-ViewportProperties _Size " & CStr(horz_res) & " " & CStr(vert_res) & " _Enter _Enter", 0)

  ' Set the viewing angle
  If (horz_res < vert_res) Then
    Call Rhino.Command("_-PerspectiveAngle " & CStr(horz_angle), 0)
  Else
    Call Rhino.Command("_-PerspectiveAngle " & CStr(vert_angle), 0)
  End If

End Sub