Sets the image map that defines the hot spots on the chart image.
By using an image map, a QChartViewer object can be configured to display tool tips specific to the hot spots when the mouse is over the hot spots. The mouse cursor can also change to a "hand" shape to provide visual feedback for clickable hot spots. A clickable hot spot is defined as a hot spot with a non-empty path attribute.
can be used to generated image maps for charts automatically.
object, accessible via QChartViewer.getImageMapHandler
, can be used to determine if the mouse cursor is over a hot spot and to retrieve the hot spot parameters.
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