DrawFootballPlays.com allows the user to choose from a number of possible line tools, highlighted in the two pictures on the left.
The line tools include:
INSERTING A LINE
Click on one of the line buttons, and click where you want it to start and end. After clicking where you want the line to end, hit the space bar to end the line.
If you want to draw up a route that requires an angle, or a change in direction, just click where you want the line to change direction and continue until you're finished. Then use the space bar.
(The space bar function will be updated in the website launch, so that the user will only have to double-click to end the line.)