折线图mousover效果/工具提示 [英] Line chart mousover effects / tooltips

问题描述

如何在鼠标悬停在数据区域的任何位置时显示工具提示？目前，它们仅在鼠标正好位于数据行顶部时显示。一个很好的例子是Google Analytics折线图。
另外，是否可以执行鼠标悬停效果来执行图形效果，例如在鼠标悬停时使任何给定的数据点更粗？

How do I make it so that tooltips display when the mouse hovers at any spot in the data area? Currently they only display when the mouse is exactly on top of the data line. A good example are Google Analytics line charts.

Also, is it possible to do mouseover effects to perform graphical effects, such as making any given data point thicker on mouseover?

推荐答案

查看样本环境，交互式图表 - >选择。

使用鼠标事件和HitTest方法似乎可以实现大多数事情。

Have a look in the Samples Environment, Interactive charting -> Selection.

Most things seem to be possible by using the mouse events and the HitTest method.

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