how to have a circular grid in a picture control

[Ogulcan]

I use a picture control to visualize position(radial distance+angle) by calculating points(x,y). Is it possible to use spherical coordinates (r,teta) instead?(or at least spherical grids without manually making arrays).
Attached you will find an example of what I mean.
In addition I would be pleased if you can tell me whether it is possible to have axis labels, zooming and cursor. And as I visualize periodically a big number of datas, would the performance be better if I used an xy graph instead?
Any help would be most appreciated.
Thanks.

[Ex-NISH]

Please check LabVIEW\Examples\picture\demos.llb\polar plot demo.vi

But it has no zooming and cursors.

Maybe you can modify that example and use XY plot instead of picture control. I mean for each function plot on the picture, you generate another function to replace it and generate XY data pairs.