问题标签 [gwt-visualization]

I have an MVP GWT 2.5.1 app using version 1.1.1 of gwt-visualization. My view has two Buttons and a VerticalPanel (accessed by the presenter as display.getPanel()). One button adds a PieChart to the VerticalPanel, the the other removes it. The presenter holds the PieChart reference as a Widget so that it knows when it has been added/removed. It is initialized to null.

I checked chrome's dev tools to ensure that the add/remove code wasn't creating a DOM leak. But after the PieChart was removed, its elements were left behind in a detached DOM tree, all color coded red. When I tried the same add/remove code with a Label instead of a PieChart, no detached DOM tree remained after removal.

My questions is: am I doing something wrong when either adding or removing the PieChart? Perhaps gwt-visualization has some other method of handling this that I am not aware of, but my google-fu is unable to produce an answer.

The presenter add/remove code is below:

我已经使用http://code.google.com/p/gwt-google-apis/wiki/VisualizationGettingStarted试用了可视化 api

但是，我想用新的可视化 API 创建图表，比如https://developers.google.com/chart/interactive/docs/gallery/piechart

是否可以使用 GWTP Uibinders 来实现这一点，或者我是否需要使用任何其他方式来实现这一点。

提前致谢，班纳特。

我想实现 gwt 可视化时间线图。

但是，它在 gwt 中不可用，是否可以直接在 gwt 应用程序中使用可视化 api (javascript)。

如果是，请给我一些指导。

有没有其他可用的选项。

我试过http://almende.github.io/chap-links-library/timeline.html和它的好。

但是，我想了解 gwt 中的可视化 api。

我有一个 GWT 应用程序，它显示带有 gwt 可视化的多个图表。

我想在我ColumnChart里面列的值。

在官方文档中，我们可以看到DataView我们可以在列内添加值： https ://developers.google.com/chart/interactive/docs/gallery/columnchart

（请在“这比应有的复杂一点，因为我们创建一个DataView为每一列指定注释”之前查看我想要的图形类型。）

在这里，我的实际代码仅在我们将列悬停时才显示该值：

你知道我如何在列内显示列的值吗？

谢谢！

I am having difficulty in customizing default tool tip text of PieChart.Here are the details of of API: gwt-visualization 1.1.2, Gwt2.0 and Gxt 2.1.1. Here is the link what i have followed , but there is no luck.

Code:

JSNI:

DataTable: