In this section, we will create three different interactions:
Trendline: This allows the user to draw straight lines on a cartesian chart. It is a completely custom-developed interaction class and we will see how it can be used with an existing CandleStick as well as a custom MACD chart that we developed in Chapter 4, Creating a Custom Cartesian Chart.
Annotation: This allows the user to annotate a chart by adding an annotation image with a text. This will be a custom interaction, which we will use with our custom MarketClock chart that we developed in Chapter 5, Creating a Custom Polar Chart.
ItemHighlight: This is a custom interaction. It allows the user to show more details about a selected series item. We will leverage ...
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