Need help with curve attractor

I modeled a chair on rhino and used lunchbox to give it a grid pattern. I need to make the pattern smaller at the edges and bigger in the centre (using curve attractor) I’m not able to script it on grasshopper coz I’m new to GH. Please help. I’ve attached an image of the chair on rhino and my grasshopper script.

No need for imgur link, you can post images here directly. Also, more helpful than your screenshot would be for you to upload your files.

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sara.3dm (4.6 MB) Sorry about that. I have uploaded the files here. (22.8 KB)

As of now my pattern is same throughout. I want to make the pattern more dense at the edge of each surface and less dense in the center.