What the code does
Demonstrates how to poll the dimensions of the bounding box for a piece of text. The bounding box is a rectangle which (broadly speaking) is the smallest to enclose a given bit of text (it is in reality a little different from this). However, it is essential to understand this concept if you which to position pieces of text centred upon a given position on the screen. You will see this concept used in many other demos to position text. The code draws a piece of text once in standard mode (bottom left corner of the text bounding box being aligned with the requested text position) and a second time with the text positioned such that the bounding box of the text is centred on the requested text position.
Visualisation
