DataRenderer

A DataRenderer can render a datum a a side effect

DataRenderers describe the visual representations of single data rows. DataRenderers operate in a side effect with the provided context specific shape and textbox renderer.

It is guaranteed that the render method is called in a loop on all rows of a data source, after which the clear method is called exactly once.

Data renderers interpret the data rows as it is applicable for their function e.g. the point renderer takes 2 numbers for the x, y coordinates and potentially numbers for the color value, and the top and bottom error bars. In contrast the box and whiskes renderer takes 5 numbers for the min/max/median/mean and the horizontal coordinate. If the data row is too short for the given data renderer then an error is thrown.