You want to move everything that is drawn on a graphics context to a new location, without changing your drawing code—or you would simply like to displace your context’s contents with ease.

Use the CGAffineTransformMakeTranslation function to create an affine translation transformation.

Recipe 15.7 mentioned transformations. These are exactly what the name suggests: changes to the way a graphic is displayed. Transformations in Core Graphics are objects that you apply to shapes before they get drawn. For instance, you can create a translation transformation. Translating what, you might be asking? A translation transformation is a mechanism by which you can displace a shape or a graphics context.