Abstract: The present invention discloses a computerized method for providing a user with at least one scenario in a modeled theater. The computerized method may include the following steps: a) selecting a plurality of threat-sites in the modeled theater, wherein the threat-site comprises at least one of the following: at least one threat-area, and at least one threat object; b) selecting at least one allowed-site in the modeled theater, wherein the allowed-site is at least one of the following: at least one allowed-area, and at least one allowed-object; c) providing at least one constraint parameter; and d) determining the at least one security scenario. The security scenario may pertain to at least one of the following: the position of at least one sensor in the at least one allowed-site. Determining of the at least one scenario may be accomplished according to computational analysis of at least one of the following: geographical information data, gathered data, and user input data.

Abstract: The present invention is for a decision support tool for 3D LOS visualization in user interactive 3D virtual reality environments for enabling true 3D LOS analysis for assisting decision making in a wide range of applications including inter alia land development projects, military operational planning, sensor placement in surveillance systems, and the like. The present invention further enables displaying cross sections of 3D virtual reality scenes, and determination of the minimum elevation of an origin node for ensuring a single continuous unobstructed 3D LOS with each target node of at least one stationary target node.