Msg ui property Y axis scale

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1

It is possible to decide the scale of Y-axis in a chart, e.g. line chart?

Maybe sending some msg.ui_property messages?

Thanks

2

yes as described in the docs

3

sorry...what docs...I didnt find them on web

4

find the node on flows.nodered.org then follow the config-fields.md link in the text

5

In the config for the chart there are Y Max and Y Min fields.

6

Not min and max...the scale

7

you need to describe what you mean. As to me if you define the min max you define the scale.

8

I have this y-axis

Cattura

I want a step of 1, I dont want 2.5, 3.75, 1.25....

9

currently that isn't possible. You can set min and max - but it then auto generates the "ticks". There is possibly an option to set it to be integers only - but that would then not work if the scale was (for example) 0 to 1. You may be able to change the max suitably to make the ticks fit more how you want.

2 Likes
10

thak you for the exhaustive response

11

I know this is a resurrection of a year old thread, but has this been solved? I see that Node-Red is using the directives from this library (Angularjs-nvd3-directives) and that library offers the ability to change the Y Axis Tick style with the property yAxisTickFormat.

My chart data has values like x.xx and the Y axis label reflects that, but I'd like to format the label to x.x without actually changing my inout data.