Hello,
This is my first project to use the google visualization API - so, I
could simply be overlooking the obvious. I have been trying to solve
this since yesterday, and I am at the verge of madness:(.
I am using LineChart with GWT and I am drawing a chart for appx 8500
points (some monthly data). These are points stored in a local
database to the web server. My latency is pretty low (app 3 secs).
However, when the cart is drawn, the horizontal labels are
understandably cluttered and the text is slanted. I am trying to
change this to be:
1. Labels are displayed in intervals (ones for each day's data)
2. The label angle is 90
I have tried the below and none of them work:
1. Tried to populate the DataTable X values only when I would like
them to be displayed. When I do this, the instead of seeing all the
values I added, I see a fraction of them (eg. I added 30 values and
only 4 labels got displayed). Is there an easier more standard way to
do this? Below is the code I tried:
int current_date = -1;
for (DataCapsule result : data)
{
data_points.addRow();
if (current_date == -1 || current_date !=
result.getDate().getDate())
{
String date_field =
DateTimeFormat.getMediumDateFormat().format(
result.getDate());
data_points.setValue(i, 0, date_field);
current_date = result.getDate().getDate();
}
else
{
data_points.setValue(i, 0, "");
}
data_points.setValue(i, 1, result.getValue());
++i;
}
2. I tried to use the options.set("hAxis.slantedTextAngle",90.0). But
this seemed to have no effect!
I appreciate your input.
Thanks,
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