Cross-vision analysis is one of the most commonly used 3D spatial analysis functions. It can be used to judge the cross-vision between two points (observation point and target point) in a 3D scene. If there is an obstacle blocking between the observation point and target point, the two points cannot be cross-viewed, otherwise they can be cross-viewed. Currently, green is used to identify the visible part of the line of sight and red is used to identify the invisible part of the line of sight.
The observation point and the target point can be one-to-many relationship, that is, the observation point can be used for cross-view analysis of multiple target points.
Intervisibility analysis can be widely used in monitoring site selection, urban planning, landscape design, etc., for example, it can be used to judge the visibility of buildings to assist urban planning, and to judge the monitoring and intervisibility of military monitoring facilities to assist in the layout of military facilities.
Operating steps
- Click 3D Analysis-Cross Vision Analysis to switch to the Cross Vision Analysis Settings panel.
- Click the Analyze button, the first point selected by the left mouse button in the 3D scene is the observation point, and the points picked later are all target points. You can continuously add one or more target points. During the picking process, the analysis results will be displayed in real time. The analysis results identify observation points, target points, and obstacle points as well as clear lines of sight.
- Right-click to end the click.
- After finishing the clicking operation, you can select and move the observation point or target point, which will change the results of the cross-view analysis in real time. The analysis results are as follows:
- Click Clear to clear the 3D scene of through-view analysis results.
