How to put an image on a flattened Sphere Primitive?

Hi there. I'm trying to put an image as the base color to fill a sphere primitive that I've flattened. I wanted a perfect circular shape to fill. I flatten it by reducing the x, y, or z size to zero. However, the image comes out deformed and I can't manage it in LIE. Any advice? Thank you!
Comments
This may not work, but have you considered using a cylinder primitive (so you have a circle) rather than a flattened sphere?
The flattened cylinder does work, but I wanted the sphere because I didn't want the edges of a cylinder.
you are also stuck the the UV mapping of the DAZ sphere primitive which is spherical
Oh, okay! Maybe I can edit the UV map. Where would I find that?
grab the free DAZ 3D program Hexagon and look at some tutorials
here is a simple flat mapped sphere obj you can have, unzip and drop it into DAZ studio, scale it how you wish
https://www.daz3d.com/forums/uploads/FileUpload/95/74ed45262d2755f7bbe0123fd0e336.zip
Wow, thank you for all that. I certainly will so I can do this on my own next time. Thank you.
Just make a cylinder with a length of 0.001 cm.
Or, if you really must have a mathematically flat plane, create a cylinder with a more normal length, then use the geometry editor to delete all surfaces except one of the ends.
If you do end up using a squashed sphere for whatever reason, there's a program called uvmapper that you can use to change the UV.