An IVisualCreator for use in a CanvasComponent that renders an IGraph instance in a sloppy overview style using WebGL.
Type Details
- yfiles module
- view-component
- yfiles-umd modules
- All view modules
- Legacy UMD name
- yfiles.styles.GraphOverviewWebGLVisualCreator
Constructors
Creates a new instance for the given graph.
Methods
This method is called by the framework to create a Visual that will be included into the IRenderContext.
Remarks
Parameters
A map of options to pass to the method.
- ctx - IRenderContext
- The context that describes where the visual will be used.
Returns
- ↪Visual
- The visual to include in the canvas object visual tree. This may be
null.
See Also
Implements
This method updates or replaces a previously created Visual for inclusion in the IRenderContext.
Remarks
The CanvasComponent uses this method to give implementations a chance to update an existing Visual that has previously been created by the same instance during a call to createVisual. Implementation may update the oldVisual and return that same reference, or create a new visual and return the new instance or null.
I most cases oldVisual is a visual instance that has been returned by the createVisual method of this instance. This is, however, not guaranteed. Implementations have to be aware of this.
Parameters
A map of options to pass to the method.
- ctx - IRenderContext
- The context that describes where the visual will be used in.
- oldVisual - Visual
- The visual instance to be updated.
Returns
- ↪Visual
oldVisual, if this instance modified the visual, or a new visual that should replace the existing one in the canvas object visual tree.