How can I create a polar graph?

[music_blue]

LabWindows/CVI v5.5.1 - I know that SmithCharts are possible to do with a conversion utility but I don't see how to do a simple polar graph.

[Paul Rocca]

Not a total answer, but one I have used in the past, is to use the ToRect(advanced analysis library) function on your array of polar data and plot it on a standard xy graph. I did this to mimic a radar screen and used annotations for my grids etc. If you have measurement studio there is a VB example of this process called something like polar-plot.prj.
HTH

Paul

[JuanCarlos]

Hi,

You can also use a canvas control to create the plot. In the canvas control you can draw the grid, plots and text. Unfortunatelly you would need to create the routines to convert the polar coordinates to the actual drawing coordinates.

There are functions to draw lines, circles and some other shapes in the canvas, with this and some geometry math, you can generate the plot.

Sorry for not having an easier solution. You can file a product suggestion at http://www.ni.com/contact (select product feedback)to help us improove CVI.

I hope this helps.

Regards,

Juan Carlos
N.I.