The polyline element is an SVG basic shape, used to create a series of straight lines connecting several points. Typically a polyline is used to create open shapes.
<!DOCTYPE HTML> <html> <head> <title>SVG tutorial</title> </head> <body> <svg width="120" height="120"> <polyline fill="none" stroke="black" points="20,100 40,60 70,80 100,20"/> </svg> </body> </html>