Google annonce Google Visualization API pour GWT.
On peut voir dans la gallerie, toutes les visualizations actuellement intégrées en GWT.
Voila une solution qu’elle a l’air intéressante pour ajouter des charts dans mon appli GWT.
Sources
Google Visualization API Library now available for Google Web Toolkit
la gallerie
Getting started
Exemples
Annotated line chart
Une gauge pour qui se reconnaitra :
J’ai parlé précédemment sur ce blog de Open Flash Chart. Voyons maintenant l’intégration dans GWT.
J’ai donc essayé le project ofcgwt.
L’idée est de fournir une API type jfreechart pour créer les charts côté client.
Voici un exemple de code :
ChartWidget chart = new ChartWidget();
ChartData cd = new ChartData(”Sales by Region”, “font-size: 14px; font-family: Verdana; text-align: center;”);
cd.setBackgroundColour(”#ffffff”);
PieChart pie [...]
Open Flash Chart is a flash library to display charts I plan to use in GWT.
Here is an example of the line chart in v1:
var so = new SWFObject(”http://teethgrinder.co.uk/open-flash-chart/open-flash-chart.swf”, “chart”, “500″, “250″, “9″, “#FFFFFF”);
so.addVariable(”data”, “http%3A%2F%2Fteethgrinder.co.uk%2Fopen-flash-chart%2Fdata.php”);
so.addParam(”allowScriptAccess”, “sameDomain”);
so.write(”flashcontent”);
Go to their site to see other examples (bar, pie, etc.)
This client-side chart library I’ve spoke before, 2.1 is out.
For remember:
The main idea behind GChart is simple: You can make very nice charts efficiently out of a reasonably small number of 1-cell Grids (for the aligned labels) and (empty) Images (for everything else), styled and positioned appropriately on an AbsolutePanel. Not surprisingly, bar charts don’t [...]
Always on the theme ‘charts in light client’, let’s introduce GChart.
Policy is to have a 100% pure GWT library. That’s for me a positove point.
The main idea behind GChart is simple: You can make very nice charts efficiently out of a reasonably small number of 1-cell Grids (for the aligned labels) and (empty) Images (for [...]
in order to keep on on charts topic, let’s introduce the Google Chart API.
Idea is to generate a PNG image in response to an URL. This URL contains informations like:
chart type (line, pie, bar, map)
data
image size
labels
colors
For example, the following URL
http://chart.apis.google.com/chart?cht=p3&chd=t:60,40&chs=250×100&chl=Hello|World
will provide this image:
To use in the dashboard (a section of our administrator web-app), I’m looking for a charts library that can be include in a GWT application. For that, I’m studying different solutions. The first one is YUI Charts.
The YUI (Yahoo! UI Library) Charts is a charts library using Flash plugin.
The YUI Charts Control visualizes tabular data [...]
