I have a simple problem. I am using DiagramView3d and trying to set a particular node and its links to invisible. The node is getting invisible but not the links.

Can you please point out whan i am missing. Below is a sample code. I am using a simple form with a Diagramview3d attached to a Diagram and a button.

[code]
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

node = diagram.Factory.CreateShapeNode(0, 0, 10, 10)

node.Shape = Shapes.Ellipse

node.Text = "asasdf"


Dim node2 As ShapeNode = diagram.Factory.CreateShapeNode(50, 10, 10, 10)

node2.Shape = Shapes.Ellipse

node2.Text = "qwer"


Dim node3 As ShapeNode = diagram.Factory.CreateShapeNode(100, 20, 10, 10)

node2.Shape = Shapes.Ellipse

node2.Text = "zxcv"


Dim link12 As DiagramLink = diagram.Factory.CreateDiagramLink(node, node2)

Dim link23 As DiagramLink = diagram.Factory.CreateDiagramLink(node3, node2)

view3D.ResetProjection()
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

node.Visible = Not node.Visible

For Each link As DiagramLink In node.IncomingLinks


link.Visible = node.Visible

Next

For Each link As DiagramLink In node.OutgoingLinks


link.Visible = node.Visible

Next

view3D.ResetProjection()
End Sub[/code]

3) Is there any method in View3D like "ZoomToFit" that exist in simple view.

Can we emulate such function? A sample code would be of great help


4) I have the background image property for both view3d and the corresponding diagram but it is not appearing. (It works for diagramview2D).

Can you please help.

5)  A suggestion: Can we have an option to show the axis (x, y, z) in the view. We want to show the user the location of the node in the xyz plane.

Can we do this in the current version some how? any hack?

I have used your idea to create the xyz plane and it is looking good.

Now on a click of a button ,i want to emulate the plane is moving
1) around x axis, y axis, z axis.
2) clock wise and anticlockwise.

I tried to use the cameraRotation property of the view3D but it is not working well. The whole plane just move away and comee back .I was unable to find any help in the documentation as well.

view.CameraRotation = New Point3D(view.CameraRotation .X + 5, view.CameraRotation .Y, view.CameraRotation .Z)

Can u post a example or some sample code.

Do you mean you need to rotate the camera around one of the axes?

Set the nodes initial positions to be some random points in a cube around the origin. Otherwise SpringLayout disperses the overlapping nodes to disentangle the graph faster, but if using animation it might take some time until they come near to each other again.

I hope that helps,
Stoyan

We have added a PointToClient method that can be used as shown below. You can find the updated version on the PM page.

Point3D point = new Point3D(50, 20, 10);
ShapeNode node = diagram.Factory.CreateShapeNode(0, 0, 30, 20);
node.LayoutTraits[View3D.Position] = point;
node.Text = "50, 20, 10";
diagramView3D.ResetProjection();

Point clientPoint = diagramView3D.PointToClient(point);
ContextMenu menu = new ContextMenu();
menu.MenuItems.Add(new MenuItem("test"));
menu.Show(diagramView3D, clientPoint);
 

The method returns the pixel coordinates relative to the client area of the view. You can use the WinForms PointToScreen method to get the screen coordinates.

I hope that helps,
Stoyan

We'll add some method that returns the projection rect. Should be ready by tomorrow.

Stoyan