about line  of sight

Discussion created by kapukiran on Nov 8, 2012
Latest reply on Mar 27, 2013 by oyleiste

I want to use line of sight and I have a problem.For Example I select an observer and a target and When I run this program, it is visible.But I want to learn nearest height on this road.(observer -> target) ?f height is smaller than 500 meter on road , this road should be invalid.How can I do this.(in .NET C#)