How can I change the plotting options in an xy-graph?

[Fabian Goericke]

I am trying to plot an xy-graph, such that the data points are plotted as circles and connected by lines that stay horizontal at the level of the data point and then go up vertically at the next datapoint. In the properties menu for xy-graphs this options is given. However, it is grayed out and I don't know how to activate it. Can anyone give me a clue as to why this is? I put a red rectangle around the options that I am referring to in the attached screenshot... Thank you!

BTW: I am using LabVIEW 8.0.1

[smercurio_fc]

You need to right-click on the Plot on the legend (on the front panel) and select Interpolation. That displays a submenu of the available choices, with the one you want. To be honest, I'm not sure why the Properties dialog does not allow you to select the Interpolation style.




Message Edited by smercurio_fc on 06-20-2008 12:24 PM

[mikeporter]

Note that you can also change this setting programaticly using a property node.

Mike...

[altenbach]

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smercurio_fc wrote:
I'm not sure why the Properties dialog does not allow you to select the Interpolation style.

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This is apparently a bug (verified for 8.0 and 8.2.1). It has been fixed in LabVIEW 8.5.1. Time to upgrade. 😄

(In any case, it is just a UI issue of the properties dialog box).

One problem is the fact that you have little control over the circle size. You can increase the size by increasing the line width, which gets ugly quickly. 😉

If you want full control over the circles (color, size, linewidth), use the "plot images" overlay feature as in the attached example (bottom graph).

Message Edited by altenbach on 06-21-2008 09:47 AM

[smercurio_fc]

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@altenbach wrote:

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@smercurio_fc wrote:
I'm not sure why the Properties dialog does not allow you to select the Interpolation style.

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This is apparently a bug (verified for 8.0 and 8.2.1). It has been fixed in LabVIEW 8.5.1. Time to upgrade. 😄

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Oh, how I wish I could.