This section mainly introduces various 3D spatial analysis in 3D scene under operation mode, and the operation and related precautions of realizing burst analysis and other functions in combination with iServer service.

Click the 3D Analysis button in the scene to pop up the 3D Analysis Settings panel. You can perform the following analysis operations:

• Cross-vision analysis : used to judge the cross-vision between any two points in a three-dimensional scene.
• Visibility Analysis : Analyzes visibility within a specified range in a 3D scene based on an observer point and its attributes.
• Multiple Viewshed Analysis : Continuous analysis of visibility over multiple specified ranges in a 3D scene based on a single observer point and its attributes.
• Profile analysis : Support calculation and feature extraction of undulations, contour lines or attributes of data on an interface.
• Skyline analysis : In the 3D scene, based on observation points and corresponding attributes, the skyline under the current viewing angle is obtained through analysis, and the skyline height limit body can be obtained based on the analysis result.
• Openness analysis : In a three-dimensional scene relative to a certain observation point, based on a certain observation radius, a "field of view hemisphere" is constructed to simulate the visual situation around the observation point.
• 3D buffer analysis : In a 3D scene, a sphere is built around a 3D point at a specified radius, or a cylinder is built around 3D line data at a specified radius
• Cross-section analysis : Detailed analysis of linear features in geospatial data, such as roads, rivers, pipes, and so on, in cross-section.
• Burst analysis : Combined with 3D network analysis services, it can be used to find the upstream or downstream valve position of the burst point.
• Best Path Analysis : Combined with Best Path Analysis in Traffic Network Analysis Service, analyze the best and effective connection path between two points according to the specified starting and ending nodes.