LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

Polar Plot Problem

Hello!!!!

I have created a Polar plot, but there is a line that shouldn't be there, what do I have to modify, so it shows exactly what I want??? I Have attached a picture of the graphs that I want, and my example VI, I hope someone can help me.

 

 

Sorry, The arrays have to be filled out whit the next info:

 

I: -1, 1,-1,1

Q:1,-1,-1,1 THIS WAY IT does what I need.

Saludos.!

Mensaje editado por Special K
Download All
0 Kudos
Message 1 of 6
(3,222 Views)
You are missing a subVI that is needed to run your top level program.
0 Kudos
Message 2 of 6
(3,218 Views)

 Technically, your figure isn't a polar plot. It's just a regular Cartesian graph. The Polar Plot VI draws a polar plot onto a picture indicator. The way it's written it draws lines. It also only shows a selective "piece of the pie". If you do not want lines, or you want to show the entire circle, then you would need to write your own polar plot generator. Or, you can just stick with the XY graph, which seems a bit closer to your picture.

0 Kudos
Message 3 of 6
(3,201 Views)

Im using LABVIEW 8.0 how can I create my own polar plot?? Have you seen the images of what I want to obtain?? Is it possible to create those graphs??

0 Kudos
Message 4 of 6
(3,187 Views)

Special K wrote:

Im using LABVIEW 8.0 how can I create my own polar plot??


 You would need to use the picture functions to draw your graph, in the same way that the Picture Plot VI does. If you open up that VI you will see how it's done.

 


Have you seen the images of what I want to obtain?? Is it possible to create those graphs??


Yes. And yes. The "how" is a different matter. It's quite trivial to create an XY graph to draw your points, so that's why I suggested to use that. If you do not know how to draw an XY graph, open the Example Finder (Help -> Find Examples) and search for "graph". You will see lots of examples on graphs, including one for XY graphs. All you need to do is provide 4 points to the graph, and change the plot type to "scatter" so you just get the points instead of lines. Pretty simple. 

0 Kudos
Message 5 of 6
(3,174 Views)
Thank you!. I have created the XY graph whit only the dots I want, now im working on the other one
0 Kudos
Message 6 of 6
(3,160 Views)