Hi,
The new version of these charts indeed implement a hole in such case while
the previous charts continued it. The GWT wrapping calls the previous
version unless explicitly stated otherwise (and we are working in order to
make it easier to use the new charts via GWT). As a short term fix, you can
choose a different package in the loading of the visualization API (namely
to override the package name that is the default in the LineChart class).
The new charts are in the 'corechart' package while the previous charts has
a different package for each of the base charts ('linechart', 'areachart'
and so on).
(Note that you cannot load the new version and old version at the same
time).
Hope this helps, let us know if there are any issues with it.
Vis Kid
On Fri, May 28, 2010 at 2:17 PM, j <[email protected]> wrote:
> Hi,
> I use the GWT wrappers for LineChart.
> I want to display a hole in the curve when I get no data.
>
> Let's take the following example with a chart presenting the evolution
> of a value during a time window.
> Time : "15:29:12" --> Value : 16
> Time : "15:29:13" --> Value : 25
> Time : "15:29:14" --> Value : 58
> Time : "15:29:15" --> Value : no data
> Time : "15:29:16" --> Value : no data
> Time : "15:29:17" --> Value : 34
> Time : "15:29:18" --> Value : 48
> When I get no data for the value I want that the curve don't print any
> point.
>
> I tried this example on the playground (http://code.google.com/apis/
> ajax/playground/?type=visualization#line_chart) with the following set
> of values :
> data.setValue(0, 0, "15:29:12");
> data.setValue(0, 1, 16.0);
> data.setValue(1, 0, "15:29:13");
> data.setValue(1, 1, 25.0);
> data.setValue(2, 0, "15:29:14");
> data.setValue(2, 1, 58.0);
> data.setValue(3, 0, "15:29:15");
> data.setValue(4, 0, "15:29:16");
> data.setValue(5, 0, "15:29:17");
> data.setValue(5, 1, 34.0);
> data.setValue(6, 0, "15:29:18");
> data.setValue(6, 1, 48.0);
>
> In this case, I have a hole in the curve.
>
> However, in GWT, I can't have any hole because the point for 58 is
> linked with the one for 34...
> The javadoc don't help me very much...
>
> Can you help me please ?
>
> Thanks in advance !!
>
> Julien
>
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