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 Remove data plot?		  New Topic  Reply to Topic
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Mike Buess

USA
3037 Posts
Posted - 11/17/2003 :  5:24:37 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
How does one remove a dataplot from a layer in Origin C?

Mike Buess
Origin WebRing Member

cpyang

USA
1406 Posts
Posted - 11/17/2003 :  6:00:29 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I am afraid that was missing in 7.5 release and has been added to SR1 (5325).

CP




Edited by - cpyang on 11/17/2003 6:01:06 PM
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rlewis

Canada
253 Posts
Posted - 11/17/2003 :  7:12:33 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Until 7.5-SR1 comes along you may wish to try this workaround which CP posted some time ago ..

bool remove_data_plot(GraphLayer glayer, DataPlot dp)
{
string strName = dp.GetDatasetName();
DataPlot dp1 = glayer.DataPlots(strName);
if(NULL == dp1)
return false; // given data plot does not belong this specified layer
string strTemp;
strTemp.Format("layer -e %s", strName);

glayer.LT_execute(strTemp);
return true;
}
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Mike Buess

USA
3037 Posts
Posted - 11/17/2003 :  8:19:28 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks, Ruthven. That's essentially what I ended up doing.

BTW, you use glayer.LT_execute() in your example. That works fine, but so does just LT_execute(). Are there any guidelines for using one or the other?

Mike Buess
Origin WebRing Member
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cpyang

USA
1406 Posts
Posted - 11/17/2003 :  11:34:15 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
LT_execute gets back into LT and the general problem of Active window and Active Layer. so OC provide page and layer level LT_execute so that the LT string passed into those versions of LT_execute can assume that object as the Active window or Acitve layer. This is very much like the LT version of win -o {script} or layer -o {script}.

It is easy to forget all these little problems and hidden assumptions in the LT world once you are more comfortable with OC, where everything is clear by simply looking at the C/C++ code.

CP
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