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 masking and plotting data		  New Topic  Reply to Topic
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akerstan

Germany
2 Posts
Posted - 05/08/2009 :  08:15:02 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver.8G and Service Release v8.0951
Operating System: XP

Hello everybody,

I am trying to write a program for graphing some data.
The problem is that some of the data in the column I want to plot is useless. Therefor I want to mask it.

At first I chose the data to mask:


string c1="worksheet -s 11 1 11 167";
LT_execute(c1);

string c2="mark -w1 Book1";
LT_execute(c2);

string c3="worksheet -s 11 640 11 -1";
LT_execute(c3);

string c4="mark -w1 Book1";
LT_execute(c4);

And now I want to get a plot where I can see the left data points.


Curve crv1(wks, 0, 10);
GraphPage gpg;

gpg.Create("Origin");

GraphLayer gly = gpg.Layers();


gly.AddPlot(crv1);

DataPlot dp = gly.DataPlots(-1);

dp.SetRange(100, 200);

gly.Rescale();


After I executed my program I have got the data masked in the column but can still see it in my plot...

Please... Is there somebody with an idea?

greg

USA
1379 Posts
Posted - 05/26/2009 :  4:17:23 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
The display of Masked datapoints is handled by the @MP system variable.
When set to 0, masked points will display in the current mask color.
When set to 1, masked points will not display in a graph. (They do still display in a worksheet.)

In Origin C, you can use the LT_Set_Var function to manipulate @MP:

LT_Set_Var("@MP", 0); // Display masked points in graph
LT_Set_Var("@MP", 1); // Hide masked points in graph

You will need a refresh after execution.
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