Robuta

https://developers.google.com/maps/documentation/javascript/examples/3d/polyline?authuser=002

https://www.php.net/manual/en/gmagickdraw.polyline.php

https://developers.google.com/android/reference/com/google/android/gms/maps/model/Polyline?authuser=4

https://code-maven.com/svg-polyline

https://developers.google.com/maps/documentation/javascript/examples/overlay-symbol-custom?authuser=2

https://polyline-advies.nl/

https://3dprint.com/tag/polyline/