Remove retrace path in XY graph

[Jay.kothari]

The attached VI is an implementation of output characteristics of a transistor. I have implemented using basic equations. However, my problem is that the XY graph retraces to 0 and then starts for a new value of VBB. I dont want that retrace path. By this, I mean is that as soon as the completion of the inner loop the outer value is updated. Since the inner loop starts agains with 0, I dont want the line from the last iteration of the inner loop to the new interation of the inner loop.

How can I remove that. Please help

[altenbach · Accepted solution]

Insert an extra point containing NaN into the data, it will break the line.

[Jay.kothari]

I did not understand it clearly. Where to insert and how to insert. Can you please if possible modify the VI and help me.

[altenbach]

Here is a quick draft.

I would recommend to use complex data for the xy graph, it dramatically simplifies the code.

(Some other points: don't use while loops as for loops. Since you know the number of iterations before the loop starts, a FOR looop is correct. Use the correct data types for diagram constants. There is a primitive for "+1")

[Jay.kothari]

Got it.. Thanks a lot.. U are a champion indeed, Sir. Thanks a bunch 😄

[Jay.kothari]

Can you tell me why did you add the Re/Im to Complex part ?

The VI rocks. Hats off to you.

[altenbach]

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@Jay.kothari wrote:

Can you tell me why did you add the Re/Im to Complex part ?

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XY graphs accept many types of data. Cleanest is complex data, where it simply graphs IM vs RE. All you need is a single 1D array instead of more complicated data structures.

Some of the possible datatypes for xy graphs are listed here:

1. A cluster of an x-array and a y-array.
2. an array of such clusters. (for multiple plots)
3. An array of clusters containing two scalars for each point
4. A cluster array, each element containing and array of clusters as in (3)
5. A complex array (graphing RE vs. IM).
6. An array of clusters, each containing a complex array (multiple plots).
7. etc.

(see also)