Global Mapper vs Point Cloud Library

Global Mapper is a desktop GIS application for geospatial data processing, spatial analysis, geodetic workflows, and preparing maps for deployment. It supports more than 300 vector, raster, elevation, and point cloud formats without add-ons or additional licenses. The Essentials plan covers data viewing and conversion, coordinate transformation and reprojection, and streamed online data sources. Advanced adds terrain and vector analysis, scripting, geodetic analysis, and cartographic production. Professional adds lidar and point cloud processing, drone photogrammetry, complex imagery and raster analysis, automated breakline extraction, and AI/ML image classification. Lidar tools include feature classification, noise removal, point cloud thinning, and vector feature extraction. GeoCalc provides more than 12,000 geodetic definitions and supports modernized NSRS and CSRS. AI-assisted extraction can identify roads, buildings, vegetation, power lines, and other features. It exchanges data with ArcGIS formats, exports to Avenza Maps for offline field use, and supports a workflow with MAPublisher and Adobe Illustrator. Plans start at $599/user/yr; a 14-day trial is listed.

Point Cloud Library (PCL) is a free, open-source project for processing 2D and 3D images and point clouds. Its algorithms cover filtering, feature estimation, surface reconstruction, registration, model fitting, and segmentation. They can be used to reduce noise, join point clouds, divide scenes into segments, find keypoints, calculate descriptors, create surfaces, and visualize point data.

PCL is divided into smaller code libraries that can be compiled separately, supporting distribution on systems with limited computing capacity or storage. Prebuilt binaries are available for Linux, Windows, and macOS, and the project recommends package managers to distribute PCL and simplify installation of its third-party dependencies. It supports OpenNI 3D interfaces for acquiring and processing data from devices such as PrimeSensor cameras, Microsoft Kinect, and Asus XTionPro. The API reference includes public methods and classes, code snippets, and links to scientific publications. PCL uses the 3-clause BSD license and is free for commercial and research use.