How do you perform 3D spatial analysis in ArcGIS Pro?

3D spatial analysis in ArcGIS Pro is performed using the ArcGIS 3D Analyst extension, which provides tools for creating, visualizing, and analyzing GIS data in a three-dimensional context.

The extension allows you to create and analyze surface data represented in raster, terrain, triangulated irregular network (TIN), and LAS dataset formats. This capability transforms flat geographic data into three-dimensional models that reveal elevation changes, terrain features, and spatial relationships that would be invisible in traditional 2D mapping.

Key Points

You must enable the ArcGIS 3D Analyst extension before you can work with it in ArcGIS Pro, which requires an administrator to assign the software license.

The extension supports analysis using many types of 3D data, including 3D points, 3D lines, 3D polygons, point clouds, multipatches, TINs, terrain datasets, and rasters.

3D Analyst geoprocessing tools allow you to create and analyze surface data represented in raster, terrain, triangulated irregular network (TIN), and LAS dataset formats.

Visibility analysis enables you to analyze visibility to derive useful interpretations of 3D data.

3D visualization allows for a more intuitive understanding of the spatial relationships between different elements of a system, which can help identify areas where improvements or repairs may be needed.

Understanding 3D Spatial Analysis in ArcGIS Pro

The ArcGIS 3D Analyst extension toolbox provides a collection of geoprocessing tools that enable a wide variety of analytical, data management, and data conversion operations on surface models and three-dimensional vector data.

The toolbox is organized into toolsets that define the scope of tasks accomplished by the tools they contain.

A 3D surface model is a digital representation of features, either real or hypothetical, in three-dimensional space, with examples including landscapes, urban corridors, gas deposits under the earth, and networks of well depths to determine water table depth.

Points in an area on the earth's surface may vary in elevation, proximity to a feature, or concentration of a particular chemical, and any of these values may be represented on the z-axis in a three-dimensional x,y,z coordinate system, so they are often referred to as z-values.

The extension is particularly valuable for energy infrastructure applications. Developing and utilizing a 3D GIS can help provide spatial insight for energy organizations, as ArcGIS offers tools to visualize, integrate, and analyze 3D data.

ArcGIS, vast data, and 2D and 3D tools enable deeper analysis of the environmental, commercial, physical, and social constraints of potential energy sites.

How It Works

Performing 3D spatial analysis in ArcGIS Pro involves several key steps and capabilities:

1. Enable the Extension and Prepare Data: You must enable ArcGIS 3D Analyst extension before you can work with it in ArcGIS Pro, as ArcGIS Pro requires that an administrator of an organization assign software licenses and extensions, after which you gain access to the 3D Analyst tools.

3D data can be converted from a variety of formats, including COLLADA, lidar, SketchUp, OpenFlight, and many other data types.

2. Create Surface Models: A triangular irregular network (TIN) layer is commonly an elevation surface that represents height values across an extent, and TINs are a digital means to represent surface morphology.

A TIN surface can be generated from surface source measurements or by converting another functional surface to a TIN surface, and you can create a TIN surface from features, such as points, lines, and polygons, that contain elevation information.

You can generate surfaces for analysis using TINs, terrain datasets, LAS dataset, and rasters.

3. Perform Visibility Analysis: The ArcGIS 3D Analyst extension allows you to determine visibility on a surface from point to point along a given line of sight or across the entire surface in a viewshed, where a line of sight is a line between two points that shows the parts of the surface along the line that are visible to or hidden from an observer.

Viewshed analysis highlights areas in the scene that are visible for a given observer, while a line of sight shows which segments are visible along a line drawn between an observer and a target location.

4. Conduct Surface Analysis: You can create surface derivative products, such as slope, aspect, and contours, and delineate floodplains for flood management, mitigation, and insurance assessments.

The extension enables you to calculate the surface area and volume of spaces in 3D data and calculate volumes for earthwork such as construction and dredging.

5. Analyze Point Clouds: You can leverage an array of tools for classifying, converting, analyzing, and managing point cloud data, and view, manage and analyze lidar and other point clouds in LAS format natively and as a collection of files in a LAS dataset.

You can use deep learning to classify point clouds for specific real-world features, or use one of the purpose-built classification tools to classify buildings and ground, and edit point classification of lidar data using geoprocessing and interactive tools.

6. Use Interactive Exploratory Tools: In a scene, on the Analysis tab, in the Workflows group, you can access the Exploratory 3D Analysis drop-down menu and click a tool.

You can manipulate analysis parameters and receive real-time visual feedback in the scene.

The Line of Sight tool creates sight lines to determine whether one or more targets are visible from a given observer location, while the Viewshed tool determines the visible surface area from a given observer location through a defined viewing angle.

Why It Matters

3D spatial analysis has become essential for energy infrastructure planning and management. The 3D Analyst extension Intervisibility tool in ArcGIS Pro enables teams to perform visibility analysis, seeking which locations have high-visibility for infrastructure projects.

Distance-based analysis can identify lidar data within the three-dimensional proximity of powerlines to understand vegetation encroachment.

The technology enables more informed decision-making across the energy sector. ArcGIS 3D Analyst enhances GIS capabilities with advanced 3D data operations and automated workflows, leading to smarter, faster decision-making.

Users can gain actionable insights through three-dimensional analysis by leveraging GIS data such as 3D features, point clouds, TINs, terrain, and rasters, and utilize simplified or advanced analysis techniques to uncover 3D spatial relationships and patterns to improve decision-making.

Related Terms

• Triangulated Irregular Network (TIN): A form of vector-based digital geographic data constructed by triangulating a set of vertices (points), where the vertices are connected with a series of edges to form a network of triangles.

• LAS Dataset: A dataset that references a collection of LAS point cloud files (.las) and optional surface constraints, which can be visualized as points or as a TIN surface model.

• Viewshed: A viewshed indicates all locations that can be seen from a specified point.

• Multipatch: A type of geometry in ArcGIS designed to represent the shell of a 3D object, composed from a series of patches that store geometry, color, transparency, and texture information.

Frequently Asked Questions

What license do I need for 3D spatial analysis in ArcGIS Pro?

The Professional Plus user type is a comprehensive license that includes access to ArcGIS Pro Advanced, the most popular ArcGIS Pro extensions, and many other ArcGIS capabilities on web and mobile devices. Alternatively, you can obtain the 3D Analyst extension as a separate add-on to your ArcGIS Pro license.

Can I use 3D analysis for energy infrastructure projects?

Yes. The ArcGIS Utility Network is a great way to manage utility data and is fully 3D enabled, allowing you to bring utility features into ArcGIS Pro or Scene Viewer and use attribute information to visualize them as 3D objects.

You can use the interactive selection tool to select and classify powerlines quickly and efficiently in a 3D scene.

What's the difference between interactive and geoprocessing 3D analysis?

The results produced by interactive viewshed tools are strictly visual, rendered dynamically and quickly by the GPU, and as analyses are evaluated, results are rendered in the scene view for display only, which is ideal for use cases that require interactive and visual evaluation of results that change frequently.

If you require the displayed analytical results as data, consider using the Viewshed geoprocessing tool in the 3D Analyst extension, which creates a raster, recording the number of times each area can be seen from the input point or polyline observer feature locations.

Last updated: July 13, 2026. For the latest energy news and analysis, visit stakeandpaper.com.