In this guide, you will learn how to import and process Polycam LAS/LAZ datasets in ArcGIS Pro to create detailed 3D visualizations and analyze LiDAR scan data for geospatial projects.
Requirements
ArcGIS Pro Software
RequiredStandard or Advanced license with 3D Analyst and Image Analyst extensions enabled
Coordinate System
ImportantWGS 1984 for both horizontal and vertical coordinate systems to match data collection standards
Open ArcGIS Pro and Set Up a Project
1Launch ArcGIS Pro
Open ArcGIS Pro on your workstation.
2Create or Open Project
Start a New Project or open an existing one that you'll use for your LAS dataset work.
3Add Dataset Folder
In the Catalog Pane, add the folder where your LAS dataset will be stored to establish a connection to your data source.
Import and Convert LAZ to LAS
Note: Since ArcGIS Pro does not support LAZ files natively, they must first be converted to LAS format before processing.
1Open Geoprocessing Pane
Go to Analysis > Tools to access the geoprocessing toolbox.
2Search for Convert LAS
In the search bar, type Convert LAS and select the tool from the results.
Configure Convert LAS Tool
1Set Coordinate Systems
Select WGS 1984 for both horizontal and vertical coordinate systems to match data collection standards.
2Specify Target Folder
In the Target Folder field, specify:
- The folder where the converted LAS files will be saved
- An output name for the LAS file in the designated folder
Run the Conversion
1Execute Conversion
Click Run to complete the conversion process. The tool will convert your LAZ files to LAS format.
2Verify Data Load
The LAS files will automatically load into the ArcGIS map. You might see a red outline box appear, indicating where the LAS dataset is located in your map view.
Visualize the LAS Data in 2D and 3D
1Convert to 3D Scene
In the View Tab, convert the Map to a Local Scene to display the scan in a 3D view.
Note: Depending on the ArcGIS version, this option may be located under the "Map" Tab instead.
2Render Elevation
ArcGIS automatically provides the LiDAR data in Elevation symbology, displaying height variations with a color gradient as shown below.
3Symbolize with RGB for Realism
In the LAS Dataset Tab, change the Symbology to RGB to represent the point cloud data in realistic color captured during the scan.
Adjust Layer Elevation
1Open Layer Properties
Right-click the LAS dataset layer and select Properties.
2Configure Elevation Settings
Go to the Elevation Tab and set the Cartography Offset to -1.5 to align the data closer to ground level if needed.
Apply Basemap Layer
1Open Basemap Options
Click the Basemap button in the toolbar to view available basemap options.
2Choose a Basemap Type
Select a basemap type that best suits your visualization needs:
2D Basemap
Provides a flat view of the area with standard map features and references.
3D Basemap
Offers a more realistic, dimensional view of the location with terrain and building features.
Pro Tip: By selecting a 3D basemap, additional details such as buildings or houses may be visible, providing better context for the location.
Explore Your 3D Mesh Options
1Open Geoprocessing Pane
Access the Geoprocessing Pane from the Analysis tab.
2Create Point Cloud Scene Layer
Use the Create Point Cloud Scene Layer Content tool to process the LAS data as a 3D mesh for advanced visualization and analysis.