Table of Contents

Class Overview

Namespace
Northwoods.Go
Assembly
Northwoods.GoDiagram.WinForms.dll

An Overview is a Diagram that displays all of a different diagram, with a rectangular box showing the viewport displayed by that other diagram.

public class Overview : Diagram, IHasContextMenu, IHasToolTip
Inheritance
Overview
Implements
Inherited Members

Remarks

For more discussion, see Introduction to Overviews.

All you need to do is set Observed:

myOverview = overviewControl1.Diagram as Overview;
myOverview.Observed = myDiagram;

The Overview draws what the observed Diagram is displaying, so setting or modifying any diagram templates or template Maps has no effect.

Animations are not shown in an Overview.

At the current time methods such as MakeImageData(ImageDataProperties) do not work on Overviews.

Constructors

Overview()

Constructs a new Overview. You will not normally call this constructor.

public Overview()

Properties

Box

Gets or sets the rectangular Part that represents the viewport of the Observed Diagram.

public Part Box { get; set; }

Property Value

Part

Remarks

By default the part contains only a magenta Shape. The box's SelectionElement is what is resized by the Overview to the apparent size of the observed diagram's viewport.

DrawsTemporaryLayers

Gets or sets whether this overview draws the temporary layers of the observed Diagram.

public bool DrawsTemporaryLayers { get; set; }

Property Value

bool

Remarks

The default value is true. Setting this property to false may improve drawing performance, especially if the Grid is visible.

Setting this property does not notify about any changed event.

Observed

Gets the Diagram for which this Overview is displaying a model and showing its viewport into that model.

If the corresponding UI component is not ready, this may be null.

public Diagram Observed { get; set; }

Property Value

Diagram