How making a bounding box can help youDrawing things can sometimes be tricky. One of the more common problems that you'll encounter is the age-old risk of running out of room to draw something. Perhaps there wasn't as much room as you thought or maybe you've started to make your object too large. This can be worked around with a simple bounding box.
A bounding box is exactly what it sounds like: it's a simple box that surrounds an object, marking the boundaries.
Making a bounding box is pretty straightforward. If you haven't drawn the object yet but do know its proportions, you can draw the box around where it'll go. Figuring that out might be tricky, but there is usually a way. To help you along, I've provided a graphic to show how to draw most symbols using a grid in their respective tutorials. For example, I've done this in the 4 Pointed Star tutorial. If you wanted to draw a 4 Pointed Star, you can see that the shape is roughly 5 by 8 grid squares. Thus, your bounding box would be a rectangle that's a little under twice as tall as it is wide.
If the object has already been drawn, you can make the bounding box by extending faint lines from the farthest parts. One set of lines comes from the leftmost part, one from the rightmost part, another from the topmost part, and the last line from the bottommost part:
Of course, it may seem silly to make a bounding box around an existing figure. However, this can help you gauge other measurements you may need to make. For example, it's much easier to see if something is centered over a box than a circle or something asymmetrical.
Overall, boxing things in like this is pretty handy, and so I'd recommend it over guesswork.