How make the vector pattern like that please see the image (gradual change)?

[Zheng218953641qnz]

[Monika Gause]

You need some sort of raster image (Bitmap = 1bit)

Can be created in Illustrator of course.

Then use Object > Object Mosaic

Then replace the black squares be whatever graphic you like using the script FindAndReplaceGraphic by Kelsocartography.com

[Met1]

It's a simple step and repeat of one rotated box with round corners...