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 set axis tick labels from dataset programmatically		  New Topic  Reply to Topic
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adickson

2 Posts
Posted - 08/30/2011 :  4:36:57 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
OriginPro 8.5.1 SR2
Mac OSX 10.6.8

I would like to be able to programmatically use a dataset for my axis tick labels.

It looks like I should be able to use this to select the "text from dataset" option for the x axis:
tr.Root.Labels.BottomLabels.Type.nVal = 1;

but where/how do I specify the actual dataset to use?

thanks,
andrea

Penn

China
644 Posts
Posted - 08/30/2011 :  11:35:11 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi andrea,

It seems that such option for Origin C is not exposed yet. For now, you can use the LT_execute to call some LabTalk to do that. For example:

void testTicks() {
	GraphLayer gl = Project.ActiveLayer();  // the active graph layer
	string strLTCmd;
	strLTCmd = "layer.x.label.Type = 2;";  // set tick labels from dataset
	strLTCmd += "layer.x.label.dataset$ = Book1_C;";  // set column C in Book1 as tick labels
	gl.LT_execute(strLTCmd);  // execute LabTalk script
}

You can get more information here about layer.axis.label object.

Penn
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adickson

2 Posts
Posted - 09/06/2011 :  10:29:08 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
that worked great! thanks.

for others that are trying this - i couldn't find much documentation on the "internal name" that you need to use when specifying the dataset (especially if you have multiple sheets in the book). i was able to access it using a labtalk script:
range rr = "[Book2]risetime!C";
nameof(rr)$=

Book2_C@12

and the format it uses is: bookname_colname@sheetnum
in originc you can get the sheet number to use by calling
wks.GetIndex() + 1

if someone knows of a link with more info about internal names, can you please post it?

thanks!
andrea
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Penn

China
644 Posts
Posted - 09/06/2011 :  10:27:51 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi andrea,

Yes, you can use the format bookname_colname@sheetnum. There is no detail document on this because this usage is old, and you can refer to this example. I am very sorry showing you this. Actually, you can use the range directly. For example:

range rr = [Book2]risetime!C;
layer.x.label.dataset$ = rr;


Penn
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