Xychart stacked bar not functioning

Ignition
1

Somehow the stacked bar function is not working as expected.

I am using Ignition V8.1.26

  1. create a new xychart with default values.
    image
    image778×412 29.7 KB
  2. change the both value display to column.
    image
    image250×622 23.1 KB

    image
    image780×412 17.3 KB
  3. both column selected "Stacked"
    image
    image287×993 37.5 KB
  4. the display is like this, only the bar height is increased, not stacked.
    image
    image779×423 14.9 KB
2

Both series need to be on the same y-axis. If you change series[0].yAxis to output temp, it will stack as expected

2 Likes
3

Thank you.

It resolved the issue.

image
image1059×397 14.9 KB

I am looking for the other kind of stacked bar.
The current stacked bar is one above the other, I am looking for the one behind the other, so I can see the difference.

Is it possible?

4

That's not a stacked bar then. I don't know what you would call it and I'm not sure what use it would be if it looks like a stack and when the front bar obscures the rear bar. Where have you seen these used?

If you introduce a third, empty series or series of zero values you should be able to introduce a gap between each pair of side by side values. That should make it clearer for value comparison.

1 Like
5

It will be used to check:

  1. what's the setpoint
  2. what's the feedback
  3. what's the error

I used a PI tool which can achieve this function.

If it is not possible to create it in Ignition, I can set the two values side by side, similar deal.

Thanks for the comments.

6

That is called a Layered Column Chart in Amcharts.
You can acheive that by adding the clustered key and setting it to false on both series - series[0].clustered

You can also set series[1].column.appearance.width and series[1].zIndex to 1 to bring it to the front

2 Likes
7

Just did it.

Thank you for the advise.

image
image2446×286 16.6 KB

one more question:
you can see from the above picture that the x axis lists even number only.
What's the setting that can allows me to specify the x axis marker? I want to display all numbers (from 0 to 45).

8

Try lowering the value of xAxis[0].appearance.grid.minDistance

1 Like
9

It works.

BTW, where can I find these kind of information?
Is there any user manual listing the details of all of the properties?
So far I am just wild guessing and trying every setting to see how it works.

1 Like
10

I've been able to find most info I need by digging through the docs here https://www.amcharts.com/docs/v4

1 Like