Updated: To dynamically draw an arrow line of various lengths, widths and angles. One can adjust the length and the width of the arrow head and also choose a filled or non filled arrow. Today I added a few extra features. You now can preview the arrow before it is drawn and draw a line of a specific mm length. Use the arrow to point you to the right direction. Ha, just kidding. Enjoy. A big "Hello" from Sunny, but windy, Melbourne Australia.