This seems to be a quite simple problem, but so far I could not find a
solution:
I have 2 series of values, that both fall into a certain time range,
however, they are not parallel.
Example:
1st series starts at 12:00, and then has values every 5 minutes, like:
12:05, 12:10, 12:15, 12:30 ...
2nd series starts at 12:03, and then has values every 5 minutes, like:
12:03, 12:08, 12:13, 12:18 ...
*Is it somehow possible to display both series in the same line chart? *(Series
2 would be "shifted" for 3 minutes on the x axis)
I am using DataTable to populate the graph, but that requires
"synchronized" values. So if I put the date 12:05 on the axis, I also have
to populate it for both series - which stands in conflict with the second
series.
I tried something like this:
private static DataTable getTestData()
{
DataTable data = DataTable.create();
data.addColumn(ColumnType.DATETIME, "1");
data.addColumn(ColumnType.NUMBER, "Random Numbers");
data.addColumn(ColumnType.DATETIME, "2");
data.addColumn(ColumnType.NUMBER, "More Numbers");
data.addRows(2);
data.setValue(0, 0, new Date(2013, 10, 14, 4, 4));
data.setValue(0, 1, 4);
data.setValue(0, 2, new Date(2013, 10, 14, 4, 5));
data.setValue(0, 3, 5);
data.setValue(1, 0, new Date(2013, 10, 14, 5, 4));
data.setValue(1, 1, 3);
data.setValue(1, 2, new Date(2013, 10, 14, 5, 5));
data.setValue(1, 3, 1);
}
but that is *not allowed* (All series on a given axis must be of the same
data type).
I looked into multiple axis but I could not figure out how to use that in
Java using the GWT-API (Also I am not sure that would solve the problem).
Maybe I am overlooking something simple - any suggestions would be welcome!
Best regards,
DaKa
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