Hello !
I have datas coming from a sensor (one measure every 50 ms) and I would like to represent them in a Vaadin Timeline.
I can add my values to the graph, this is not the problem. My problem is that the time in the x-value caption doesn’t work, I don’t have any caption.
Actually, I would like a caption starting from 0, and showing every 50 ms. Does someone know how to resolve it ?
Here is my code where I had 10 values, one value every 50ms.
/** * Creates a graph container with a month of random data */
public Container.Indexed createGraphDataSource(){
// Create the container
Container.Indexed container = new IndexedContainer();
// Add the required property ids, we use the default ones here
container.addContainerProperty(Timeline.PropertyId.TIMESTAMP,
Date.class, null);
container.addContainerProperty(Timeline.PropertyId.VALUE,
Float.class, 0f);
container.addContainerProperty(Timeline.PropertyId.CAPTION, String.class, "Our marker symbol");
// Add some random data to the container
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MILLISECOND, -1000);
int i = 0;
while(i<10){
// Create a point in time
Item item = container.addItem(cal.getTime());
// Set the timestamp property
item.getItemProperty(Timeline.PropertyId.TIMESTAMP)
.setValue(cal.getTime());
// Set the value property
item.getItemProperty(Timeline.PropertyId.VALUE)
.setValue(i);
item.getItemProperty(Timeline.PropertyId.CAPTION).setValue(cal.getTime().toString());
cal.add(Calendar.MILLISECOND, 50);
i++;
}
return container;
}
Waat I would like is something like this :
Thank you for reading !
Sebastian
