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BENEFITS & FEATURES

Key Benefits:

  • Fully automated 3D feature extraction from LIDAR data
  • Simple, fast, and accurate extraction of multiple features and bare earth terrain
  • Extraction of 3D buildings with complex roofs (sloped roofs, domes, etc.)
  • Extracted features include attributes (building height, roof type, crown width, etc.)
  • Editing tools for 3D shapes and terrain surfaces
  • Extraction of trees and forest regions
  • Batch processing
  • Extraction of contour lines
  • Free tutorial

Technical Features:

  • Load LIDAR data with automatic prompts for first return, last return, and intensity; runs hill shade and relief on each of the above inputs
  • Hill shade and relief tool includes the following functions:
    • Input is any DEM
    • Set shadow length (lighting altitude)
    • Set sun angle (lighting azimuth)
    • Shading styles
    • Level of detail
  • Bare earth extractor includes:
    • First return (optional)
    • Last return (required)
    • Automatically clean data before extracting bare earth
    • Spikes and pits removal
    • Low pass filter smoothing
    • Two bare earth extraction methods: method 1 is the default and method 2 is used in case of tall buildings
    • Mask value
  • Building extractor includes:
    • Last return DEM
    • Bare earth DEM
    • Minimum building area
    • Minimum building height
    • Maximum slope for building roofs
    • Smoothing tolerance (Bezier smooth)
    • Z-enable using the following options: min, max, average, actual, or none
    • Square up (enabled by default)
    • Extract as multi-components. (Lego-land buildings)
    • Attributes the following: building ID, roof type (multi-level flat, simple flat, complex, pitched), average height above ground level, min height above ground level, max height above ground level, dev height (range of height), area, perimeter, length, width, and orientation angle
  • Tree and forest extractor includes:
    • First return (optional)
    • Last return (required)
    • Bare earth (required)
    • Buildings (required)
    • Output types include the following: tree points or
      forest polygons
    • Minimum tree height
    • Average tree diameter
    • Max dist between trees (for forests)
    • Min size of a forest (for forests)
    • Attributes the following: tree ID, tree height, crown width of tree, and stem diameter
  • Bare earth clean up tools include:
    • Spikes and pits removal: input DEM, percentage of DEM range above which spikes appear, outer radius of search annulus, inner radius of search annulus, show detached spikes and pits as a shape file
    • Bare earth modification tools
    • Create bare earth modification layer
    • Process bare earth modifications
    • Replace buildings
  • Additional tools include:
    • Create 3D shapes: input shape file, Z-attribution method (min, max, average, actual), DEM file
    • Square tool: input building shape file, smoothing tolerance, digital elevation model (DEM), bare earth
    • Polygon Reshape Deluxe Editing Tool
    • Image Cut Tool
    • Export to KML (Google Earth)
    • Control point analysis
 

 

 
   
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