How to bring all elements of a raddiagram into view? BringIntoView not working

[Cezara]

Hello,

I am trying to bring into view all elements of a diagram, but cannot manage to fit it to screen. Is there any workaround for BringIntoView method?
I tried to use the followings and won't work.

Last piece of code sometimes works, sometimes doesn't.
Is there a formula to calculate the bounds, the view port size and zoom to fit all elements of a diagram into view?

Thank you!

 

1.

var box = selectedHardwareVariant.Shapes.GetEnclosingBounds();

selectedHardwareVariant.DiagramElement.BringIntoView(box, false);

selectedHardwareVariant.DiagramElement.Controller.OnViewportChanged();

2.

var box = selectedHardwareVariant.Shapes.GetEnclosingBounds(); selectedHardwareVariant.PanToPosition(box.Center()); selectedHardwareVariant.DiagramElement.BringIntoView(box, false); selectedHardwareVariant.DiagramElement.Controller.OnViewportChanged();

3.

Telerik.Windows.Diagrams.Core.DiagramConstants.MinimumZoom = 0.001;
                Telerik.Windows.Diagrams.Core.DiagramConstants.MaximumZoom = 50;
                selectedHardwareVariant.AutoScroll = true;
                selectedHardwareVariant.AutoLayout = true;
                selectedHardwareVariant.ZoomIn(1);
                selectedHardwareVariant.Zoom = 1;
                selectedHardwareVariant.DiagramElement.Controller.OnViewportChanged();
                var box = selectedHardwareVariant.Shapes.GetEnclosingBounds();
                selectedHardwareVariant.PanToPosition(box.Center());
                selectedHardwareVariant.DiagramElement.BringIntoView(box, false);
                selectedHardwareVariant.DiagramElement.Controller.OnViewportChanged();

                IEnumerable<IShape> shapesOutside = selectedHardwareVariant.DiagramElement.Shapes.Where(x => !selectedHardwareVariant.DiagramElement.IsInViewport(x));
                for (int i = 0; i < shapesOutside.Count(); i++)
                {
                    double newZoom = Math.Round(selectedHardwareVariant.Zoom/1.1, 3);
                    box = selectedHardwareVariant.Shapes.GetEnclosingBounds();

                    selectedHardwareVariant.DiagramElement.PanToPosition(box.Center());
                    selectedHardwareVariant.DiagramElement.Controller.OnViewportChanged();
                    selectedHardwareVariant.ZoomOut(newZoom, box.Center());
                    selectedHardwareVariant.Zoom = newZoom;

                    if (selectedHardwareVariant.DiagramElement.Shapes.All(x => selectedHardwareVariant.DiagramElement.IsInViewport(x)))
                    {
                        break;
                    }
                }

[Dess | Tech Support Engineer, Principal]

Hello, Cezara,  

RadDiagram has an overload for the DiagramElement.BringIntoView method that accepts a RadDigramShape item. This is the easiest way to scroll the shape into the view: 

this.radDiagram1.DiagramElement.BringIntoView(this.radDiagram1.Shapes[2])

You can use a RadDiagramContainerShape  that contains multiple shapes in it. Thus, you can easy bring the whole container into the view with the many shapes:

this.radDiagram1.DiagramElement.BringIntoView(this.radDiagram1.Shapes[3]);

Each shape offers Position property indicating its original location on the diagram. The Position of RadDiagramElement indicates whether the view is panned and with what offset. Thus, considering the Size of the diagram element and its Position, you can determine whether a shape is visible in the view or not ( by shape's Position). Don't forget the zoom factor because it also has to be consider when taking the position of the shape, e.g. shape's position * zoom = current position, then determine whether this current position intersect with the diagram element's size and Position offset. Hence, you can play with the zoom level or pan offset to ensure that all shapes are displayed into the view.

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik