Virtual Ground Points are computer-generated reference points used in geospatial and 3D modeling applications, particularly in cases where physical ground points are not readily available or when precise elevation data is needed for digital terrain models. These points are generated through mathematical calculations and algorithms to represent specific elevation values or geographic coordinates in a virtual or digital environment.

Key characteristics of virtual ground points include:

  1. Digital terrain modeling: Virtual Ground Points are essential in the creation of digital elevation models (DEMs) and digital terrain models (DTMs) used in geographic information systems (GIS), computer-aided design (CAD), and 3D modeling software.
  2. Elevation data: they provide elevation data that can be used for rendering 3D landscapes, simulating terrain, and conducting spatial analyses.
  3. Interpolation: Virtual Ground Points may be interpolated from available data sources, such as contour lines, satellite imagery, or LiDAR data, to create a continuous and detailed representation of the terrain.
  4. Simulation and visualization: in applications like video games, virtual reality, and simulations, virtual ground points help in rendering realistic and accurate virtual landscapes and environments.
  5. Geospatial analysis: these points are crucial for various geospatial analyses, including line of sight, flood modeling, and viewshed analysis.

Virtual Ground Points are valuable in situations where real-world ground points are challenging to access or where a high level of detail and accuracy is required in digital modeling and simulation. They play a vital role in visualizing and analyzing geospatial data and 3D environments within a digital context.

Learn more in our blog post.