PlotStripChart function

[momo2013]

Hello,

I am using "PlotStripChart" function to express variables. I would like to show two variables(data range is pretty different.) in one chart.

I tried to show each variables with traces but it was hard to see the values because of the different range of data. 

Is it possible I could set active both Y-axises(Left and Right axis) for StripChart and bind the variables to each axis?

Thank you,

Insuk 

[momo2013]

Hello,

I think I found the indirect way by setting the axis scaling. If you have any better way, please let me know.

Thanks,

Insuk

[RobertoBozzolo]

You can enable the right Y-axis and set the strip chart with two traces. Next customize e.g. trace 2 to use the right Y-axis. From this moment on, when you PlotStripChart with an array of two values, the first one refers to left axis and the second one to right axis.

[RobertoBozzolo]

This is how you set trace #2 to use the right axis:

[momo2013]

Hello Roberto,

Thank you for answer. But I still have difficulty to see the trace#2 value.

If I use right Y axis, it should have the independent scale for the value. Right?
If the YLeft = 100 and YRight = 0.0001, then they should have each auto scale and show the graph by the range.

My Right Y axis values seems to follow the left range and hard to see the smallest Y axis value.

Should I set up for this one? I also could not see the right Y Axis values. Do I need to set up for showing Right Axis value?

Thank you,

Insuk

[RobertoBozzolo]

This is how to show and set the right Y-axis scale:

[momo2013]

Hello Roberto,

For making sure, let me attach the uir file setting and the part of my program.

Do I need to call "SetCtrlAttribute(DisplayHandle,Chart[idx].chartCtrl,ATTR_ACTIVE_YAXIS,VAL_RIGHT_YAXIS);" whenever I update chart?

I tried that but it did not work either.

The code:

SetCtrlAttribute(DisplayHandle,Chart[idx].chartCtrl,ATTR_ACTIVE_YAXIS,VAL_RIGHT_YAXIS); 
PlotStripChart(DisplayHandle,Chart[idx].chartCtrl,PlotBuf[idx],2,0,0,VAL_FLOAT);

The attachments:

1. trace setting

2. my uir apprearance

3.running result

[momo2013]

Thank you though I did that before asking that.

Insuk

[momo2013]

Let me give more codes for making sure. The following code is repeating every 1 sec.

PlotBuf[idx][0] = dataF; //This value for trace #1

PlotBuf[idx][1] = Chart[idx].sampleVar; //This value for trace #2

SetCtrlAttribute(DisplayHandle,Chart[idx].chartCtrl,ATTR_ACTIVE_YAXIS,VAL_RIGHT_YAXIS); 
PlotStripChart(DisplayHandle,Chart[idx].chartCtrl,PlotBuf[idx],2,0,0,VAL_FLOAT);

Thank you,

Insuk

[RobertoBozzolo]

No, ACTIVE_YAXIS need not to be calle before plotting. You should simply call PlotStripChart as you are already doing. But I noticed that in your uir3.jpg (running result) the right Yscale is not visible: are you sure you are using at runtime the same strip chart you customized in the UIR editor?