Here is another example of a design play with a single shape. With a single shape, it's possible to achieve very intricate designs, with a little layering, color, and path manipulation. I've been exploring simple shapes and layering lately, and again wanted to share with you a little super-simple inspiration.
Tips for exploring this on your own:
How I made these Shapes:
1. Like I mentioned above, I just used a single shape over and over, a rounded rectangle, but I also combined a lot of paths to form some more complex shapes. Here's how: Make a bunch of rounded rectangles on top of each other at different sizes, like this.
Now in the Pathfinder palette (window > pathfinder) Hit the “Exclude Overlapping Shapes” button, then immediately hit the “Expand” button. (or you can hold down option/alt while hitting the Exclude Overlapping Shapes button).
Illustrator subtracts all of the areas that were previously overlapped, and the expand button gets rid of the leftover paths and creates one simple compound path for you. Here is the result!
2. The same thing goes for the shapes that have only strokes, but we will use a different button in the Pathfinder. Create a bunch of rounded rectangles, overlap them and apply a stroke like this.
Now hit the “Add to Shape Area” button in the Pathfinder to combine all of the rectangles into a single path, then immediately hit “Expand” to get rid of the leftover paths.
Illustrator combines all of the shapes into a single path for you. Here is the result.