Hi every one, for some reasons, I hope the top and perspective view could
rotate 180 degree by y-axis, and give the nameview-top1, perspective1.
and the following code can finish this work.
Dim num As Integer
num = RhinoDoc.ActiveDoc.Views.Count
Dim vp11(num - 1) As Rhino.Display.RhinoView
For i = 0 To num - 1
vp11(i) = RhinoDoc.ActiveDoc.Views.ElementAt(i)
If vp11(i).ActiveViewport.Name = "Perspective" Then
vp3 = vp11(i)
vp3.ActiveViewport.Rotate(PI, VECC, pt0)
End If
If vp11(i).ActiveViewport.Name = "Top" Then
vp2 = vp11(i)
vp2.ActiveViewport.Rotate(PI, VECC, pt0)
End If
Next
RhinoDoc.ActiveDoc.NamedViews.Add("Perspective1", vp3.ActiveViewport.Id)
RhinoDoc.ActiveDoc.NamedViews.Add("Top1", vp2.ActiveViewport.Id)
RhinoDoc.ActiveDoc.Views.Redraw()
But the active view maybe exist two perspectives and the top is disappear in some situations, and I must to find top view information from the viewtable list (see the following figure) , could anyone tell me how to write the program to obtain the all
views information(not only limit the active document)
It is probably best to not look for view orientations based on the name, which is localized, can be changed by the user, and may not accurately describe the view’s orientation.
Consider the following utility functions:
Protected Function IsRhinoViewPerspective(ByVal view As RhinoView) As Boolean
Dim rc As Boolean = False
If view IsNot Nothing AndAlso view.ActiveViewport.IsPerspectiveProjection Then
rc = True
End If
Return rc
End Function
and
Protected Function IsRhinoViewTop(ByVal view As RhinoView) As Boolean
Dim rc As Boolean = False
If view IsNot Nothing AndAlso view.ActiveViewport.IsParallelProjection Then
Dim top_dir As New Vector3d(0.0, 0.0, -1.0)
Dim cam_dir As Vector3d = view.ActiveViewport.CameraDirection
cam_dir.Unitize()
If top_dir.IsParallelTo(cam_dir) Then
rc = True
End If
End If
Return rc
End Function
You can use these from a simple Rhino plug-in command:
Protected Overrides Function RunCommand(ByVal doc As RhinoDoc, ByVal mode As RunMode) As Result
Dim perspective_counter As Integer = 1
Dim top_counter As Integer = 1
Dim pi As Double = Math.PI
Dim axis As Vector3d = Vector3d.YAxis
Dim origin As Point3d = Point3d.Origin
Dim standard_views As RhinoView() = doc.Views.GetStandardRhinoViews()
For Each view In standard_views
Dim name As String = Nothing
If IsRhinoViewPerspective(view) Then
name = view.ActiveViewport.Name & perspective_counter.ToString()
perspective_counter += 1
ElseIf IsRhinoViewTop(view) Then
name = view.ActiveViewport.Name & top_counter.ToString()
top_counter += 1
End If
If Not String.IsNullOrEmpty(name) Then
view.ActiveViewport.Rotate(pi, axis, origin)
doc.NamedViews.Add(name, view.ActiveViewportID)
End If
Next
doc.Views.Redraw()
Return Result.Success
End Function
