Line of sight between points.

Susanna Hovsepyan

unread,

Nov 4, 2022, 11:10:27 AM11/4/22

to openglobus

Hello!
Does anyone know if OpenGlobus library has the functionality to show the line of sight between two points or the functionality to show the viewshed from the point. Please share some sources or examples if you have. Thanks.

Michael Gevlich

unread,

Nov 6, 2022, 1:14:48 AM11/6/22

to openglobus

Hi Susanna! Very interesting question, I'm sure you want to see line of sight depends on terrain model. Openglobus doesn't have such tool, it could be solved with some shaders visualization technics(tricks) or some server computations if you want fast method for multiple points result. For a few points in a time it's quite easy(i suppose), first is getting elevation profile from one point to another (with 1m frequency checkpoints for instance) on each step check elevation intersects with the line of sight which is a ray to the destination point.

Susanna Hovsepyan

unread,

Nov 7, 2022, 7:18:15 AM11/7/22

to openglobus

Hi! Thank you very much for your response. It is the first time I work with 3D maps and there are a lot of things which are still difficult for me to understand. So, I would like you to explain the algorithm in more details. At the moment I need the line of sight between two points. Thanks in advance.

воскресенье, 6 ноября 2022 г. в 10:14:48 UTC+4, mgev...@gmail.com:

Reply all

Reply to author

Forward