During the workshop we will be relying on a technique well know to painters. It is called the grid method.

Let's explain this method with our tRusted logo.

The first thing we do to our logo is overlay a grid.

Next we draw a second grid, similar to the first.

Now we focus on a single cell in the original grid, and accurately copy it in the corresponding grid in the target grid. Going from top to bottom and from left to right, our first cell is empty. The second cell has a single tooth of the gear. Let's copy it over.

The following cell has some more teeth.

By copying each cell one by one, the original logo is recreated.

until the original is completely copied.

Once we understand the basics of the grid method, we can start to look for variations. Nobody is restricting you to draw the target grid differently.

We could scale the grid.

We could scale the grid non-uniformly.

We could shear the grid.

Or we could combine various transformation and apply that to the grid.

Because we will make extensive use of the grid method, and want to easily manipulate the grid, we will introduce a box abstraction.