ArcGIS 3D Analyst provides true 3D analysis tools to help you determine the contour, slope, or elevation of a region; the size of the shadow cast by a proposed building; or the geology beneath the surface of an area. Quickly generate 3D master plans, and publish and share your 3D scenes with your organization or the public. You can communicate your ideas more effectively in 3D. Analyze GIS data in true 3D space to save valuable time and cost. Geoprocessing tools give you the ability to perform complex surface, volumetric, and visibility analyses that can include time.