How to use DrawerJs
Drawing Polygons
Select Polygon from the toolbar.
The cursor turns into a cross with an informational tooltip next to it.
Furthermore, a border color picker and a border style selection will show up at the bottom.
The most recently selected color is already preselected.
In the upper right corner, you’ll see a button for stopping the drawing of your polygon.
Click anywhere on the canvas to start your polygon at that position.
Keep adding more lines to your polygon by clicking on the canvas.
Press Esc or click the stop button in the upper right corner to finish your polygon.
Drawing polygons on touch devices is dead simple. Option #1:
To start drawing, make a single tap on the canvas element.
At the target position of the first line, make the second tap.
Every single tap will draw a new line of the polygon.
Top stop drawing, tap on the stop button.
Option #2:
To start drawing, tap on the canvas element and move your finger to the target position.
At the target position, release your finger.
Tap on the canvas element again and move your finger to draw as many lines as you like.
Top stop drawing, tap on the stop button.
Drawing a Polygon