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Version: 3.4.7

VRGS tutorials

There are three tutorials that take you through different aspects of VRGS.

  1. Basic tutorial - this tutorial walks through how to create a VRGS project, load data, and start interpreting your 3D digital outcrop data.

  2. Advanced and extra tutorial - this tutorial describes a VRGS project structure, how to manage project backups, and geospatial data positioning (e.g. coordinate transforms).

  3. Fracture tutorial - a complete fracture study, from mapping traces on the outcrop through to a validated Discrete Fracture Network.

Basic tutorial​

  1. We'll go through the layout and menu system of VRGS and what the different components are.

  2. Create our first VRGS project and discuss the basic structure of a VRGS project.

  3. Import/load in some 3D outcrop data and describe a bit about what the different 3D data formats are and how VRGS interacts with them.

  4. Show how to add annotations to the project and a 3D outcrop model, such as scale bars and basic measurements.

  5. Discuss some of the basic interpretation tools in VRGS and how you might use them.

  6. We'll also discuss the type of attributes that you can calculate and visualise from your 3D outcrop model.

  7. Then we'll wrap up the tutorial and talk about next steps and how you get more from your 3D outcrop data!

Advanced tutorial​

  1. Description of a VRGS project directory and data structure.

  2. How to manage VRGS project backups and restoration.

  3. Geospatial coordinate system setup of a project and transforming data.

Fracture mapping and analysis tutorial​

A worked end-to-end fracture study. Each step links out to the reference guide behind it, so this is the route through them rather than a repeat of them.

  1. Overview - the workflow, and what you need before you start.

  2. Mapping fracture traces - digitising traces on the model by hand, and recording fractures along a scan line.

  3. Fractures from photographs - the AI, ACO and Phase Congruence detectors, and projecting the result onto the 3D model.

  4. Orientations and fracture sets - contouring the stereonet, and splitting measurements into sets by hand or by k-means.

  5. Measuring fracture intensity - P10 along a scan line, and P21/P32/P33 intensity maps across the outcrop.

  6. Building a DFN - generating a Discrete Fracture Network from what you mapped, conditioning it on observed intensity, and validating it against your traces.