Our requirement is to have polygon shapes be drawn at runtime, and to have a “rich” tooltip display for the user when the user hovers over one of these polygons.
Using a CustomRenderableSeries, we’re able to plot polygons, each as its own CustomRenderableSeries. The tooltip displays on a mouse hover when the mouse is within a few pixels of the edge of polygon, but it does not display when the mouse hover is in the middle of a polygon.
We have also explored creating CustomAnnotations of these polygonal shapes – however, the CustomAnnotation object type does not have a ‘Path’ or ‘Points’ property as is shown in the arrow shapes declared in the XAML of the ‘Annotations are Easy’ WPF example. Because we won’t know the paths of these shapes until runtime, this does not meet our requirement.
Is there a way to have tooltips appear within polygons, or a way to assign ‘Path’ data to a CustomAnnotation? Or any other ChartModifier that might suit our needs?