[Tim Winselmann]

Hey there,

I have a lot of coordinates to plot into a BIRT Chart. These coordinates can also go a kind of backwards (like a quarter of a circle).

When I use a Scatter Chart the series markers are a bit to big to show all series. But I can’t make them any smaller, cause the BIRT API for “marker.setSize(int value)” just allows Integers. So the size of the smallest marker I can get is “1”.

If I use a Line Chart the coordinates will be misconnected… In the attached example I would like, that all the points over 280 were connected at first and than all under 280. But I think a Line Chart simply does not draw itself “backwards”?


Does somebody have any idea which Chart type I have to use, or what else I could do to reach my purpose?
I'm working with the BIRT Designer 2.6.2.

Thanks again,
Tim

Attached File(s)

•  chart.png (77.96K)
  Number of downloads: 3

[mwilliams]

A size of 1 isn't small enough? Do you need a marker? Or can you just use the scatter plot with the connecting line?

[Tim Winselmann]

Thanks for your quick answer!

I think I have to go a little bit more in detail.

 birt_screenshot.png (83.89K)
Number of downloads: 0
The first chart is a Scatter-Chart without markers, but the connecting line. The second chart is a Scatter-Chart just with markers.

In the first one you can see, that i can't use a line to connect my values, because on the left and on the right side the values lie against each other, as shown in my first post. So that connecting them via a line causes a filled area on that place...

In the second one you can see, that a size of 1 isn't small enough for my intend because the markers still overlap each other. A line is still thinner than the smallest marker.

The second one is mostly that one I would like to get, except the size of the markers.

Do you have any ideas what chart I could use, or what else I could do?

Thanks in advance!
Tim