Introductory tutorial chapter that covers the very basics of point cloud viewing and manipulation. Topics Covered:

• Loading point clouds into QTM.
• Display Settings: height color, intensity, lighting.
• Basic Manipulation: zoom, tilt, rotate, pan.
• Useful Point Cloud Visualization Options: setting point size, legends, axes (3D north arrow).
• Loading Multiple Models: show/hide models, flicker, remove models.
• Point Interrogation - querying individual point attributes.

Watch Basic Point Cloud Manipulation Video

Download Basic Point Cloud Manipulation Video FIle
(142MB MP4 File)

Introductory tutorial chapter that covers the basics of DEM viewing and manipulation. Topics Covered:

• Definitions: DEM/DTM vs. DSM.
• QTM's QTT surface model format.
• Loading DEM's, DSM, DTM's and other surface models into QTM
• Basic Manipulation: zoom, tilt, rotate, pan, reset view.
• Display Settings: height color, intensity, lighting.
• Useful DEM Visualization Options: legends, axes (3D north arrow).
• Loading Multiple Models: show/hide models, flicker, remove models.

Watch Basic DEM Manipulation Video

Download Basic DEM Manipulation Video
(36MB MP4 File)

This module covers the basics of creating a point cloud from an LAS file. Topics Covered:

• Opening LAS files directly (i.e., no import process).
• LAS import window and choices.
• Data compression (an optional process).
• Processing options.
• Format options.
• Georegistration.
• LAS attributes in the point data record and the creation of the QTA attribute file.
• LAS attribute display.
• Point Query - displaying all LAS attributes of a given point.
• Filtering by LAS classification upon import.
• Merging choices: How to either merge LAS data sets into a single point cloud - or keep them separate - upon import.

Watch Basic LAS Point Cloud Import Video

Download LAS Import to Point Cloud Video
(66MB MP4 File)

This module covers the basics of creating a Surface Model (DEM, DTM DSM) from a LAS file. Topics Covered:

• Choosing an appropriate grid size.
• Filtering options.
• Gridding options.
• Processing as a group (making one model from many LAS files).
• Surface subtraction (subtracting one surface from another
• Displaying point clouds and surface models simultaneously.
• Exporting surface model to GeoTIFF DEM to share with other applications.

Watch LAS Import to Surface Model Video

Download LAS Surface Model
(49MB MP4 File)

This module covers the basics of overlaying 2D imagery (known as "textures" in QT Modeler terminology), cropping and downsampling of images, and creation of colorized point clouds and DEM's. Topics covered:

• Supported Imagery Formats (GeoTIFF, MRSID, ECW, NITF, etc.)
• Texture/image cropping options.
• Searching for imagery based on the extents of the loaded models.
• Sampling imagery color values onto point clouds and DEM's.
• Exporting colorized point clouds to LAS.
• Editing Textures.
• Downsampling.

Watch Imagery Overlay Video

Download LAS Surface Model
(88MB MP4 File)

Overview of the Quick Terrain Modeler Version 7.1.0 release. Topics include:

• Imagery overlay enhancement.
• Image sampling onto 3D models - colorized model creation.
• Model search enhancements.
• QTA Quick Color - color point clouds quickly based on LAS point attributes (return number, number of returns, point source ID, etc.)
• Legends
• Enhanced Helicopter Landing Zone (HLZ) tools.
• Coordinate Quick Copy
• Editing LAS classification.

Watch Quick Terrain Modeler "What's New for Version 7.1.0" Video

Download Quick Terrain Modeler "What's New for Version 7.1.0" Video
(117MB MP4 File)