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VLP Technical Specifications


Supported File Types


Extention Description Data Type
VLP VLP Native Format All
SHP (+DBF) ArcView Shape Files FC, FC Data, Map
FC1 / IDGS MOF Forest Cover Graphics / Microstation FC / Map
FIP MOF Forest Cover Data FC Data
DXF AutoCAD - Data eXchange Format FC, Map
RAW, DEM, PLN, NPO, ARC, TOP TRIM BC MOEP Data Map
GRD Gridded TRIM BC MOEP Data DTM
ASC ArcINFO ASCIIGRID DTM
DAT VLP ASCII format FC, MAP, Camera
MSH VLP Binary DTM format DTM
MDB, DBF, XLS, TXT etc Most tabular data formats FC Data

Limits

VLP is limited only by your hardware. In a single project you can include:

  • Multiple DTMs
  • Multiple Forest Cover files
  • Multiple maps
  • Multiple viewpoints with multiple views from each

Some of our projects have included 50+ forest cover mapsheets, roads, cutblocks and DTMs with over 10 million vertices. Other projects have had 600+ views.

Forest Cover

Each forest cover polygon can include up to five layers of information. Each layer contains:

  • Upto 6 species with percent composition or the deciduous portion
  • Height
  • Density - VLP can calculate visual density based on height and crown closure
  • Age - can be used to colour older stands and add snags

Harvest Methods

A cutblock modifies the forest cover below. These following harvest types are currently available in VLP:

  • Clearcut
  • Clearcut with WTPs
  • % stems removed
  • % stems retainted
  • Number stems removed
  • Number stems retainted
  • Patch Cut
  • Strip Cut
  • 2 pass system
  • 3 pass system
  • 4 pass system
  • 5 pass system