The LAS file (*.las) is an open-format binary file standard for storing LiDAR point cloud data or geo-information collected by other sensors. It comprehensively records core parameters including 3D point cloud spatial coordinates, reflection intensity, multi-echo sequences, scan angles, and multiple classification codes, while also supporting integrated storage of auxiliary information such as aerial photography posture, flight strip indices, and geographic references.
From its initial release in 2003 to present, there have been five versions: 1.0, 1.1, 1.2, 1.3, and 1.4.
SuperMap utilizes LAS datasets to manage LAS files. LAS Dataset is a data structure designed for efficient management and access of LiDAR data. It employs lightweight metadata management mechanisms and establishes file path indexes to achieve efficient organization of massive point cloud data. Applicable to scenarios requiring TB-level point cloud processing such as 3D real-world modeling for smart cities, power line inspection, and geological hazard monitoring, it achieves optimal balance between source data integrity and processing efficiency.
This chapter on LAS dataset management covers the following topics:
- Create LAS Dataset: Introduces how to create an LAS dataset.
- Manage LAS Dataset: Explains how to add/delete LAS files, build pyramids, and browse mosaic dataset properties.
- LAS Dataset Properties: Describes LAS dataset properties including basic attributes, LAS file attributes, and statistical data.
Currently supported data sources: PostGIS and UDBX only.
SuperMap iDesktopX 2025 version and later provide LAS dataset functionality.