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Seismic Visualisation and Analysis

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Seismic Visualisation and Analysis

Introduction

Jdi is ISS International's package for advanced visualisation and analysis. Jdi was originally developed as a tool to facilitate the integration of modelled and seismic data but has grown to incorporate many features which are more generally applicable.

Some of Jdi's notable features are:

Together with these features Jdi provides an intuitive user interface that allows you to quickly and efficiently get your work done.

Do you need Jdi?

Given that there are other packages for seismic visualisation out there, do you need Jdi? If you fall into one or more of the following categories you probably need Jdi:

  • You are dealing with a 3D ore body or structures (faults and dykes). In this situation plan view alone is inadequate - seismicity occurs in 3D and by viewing it in 2D you lose valuable information, also events and plans at different depths obscure each other. Jdi provides full 3D interaction which remedies this situation.
  • You are integrating modelled and seismic data. The first step in integration is to view contours of your modelled data with your seismicity in order to gauge correlation. Jdi facilitates this and more advanced integration techniques, such as Map3Di and Differential Maps.
  • You want to perform more advanced analysis of your seismicity. Jdi allows you to filter events by event parameters, planes and polygons. You can also view multiple filters at the same time and export filters to an evp file. This combined with flexible contouring facilities provides a powerful platform for advanced analysis.

Features

3D Interaction
Most packages primarily work in 2D, and if they allow 3D it tends to be cumbersome. Jdi is full 3D from the start, enabling fluid 3D interaction with you data, mine plans, and structures, for example:

  • Click on any point in space and get it's coordinates.
  • Click on any event and get it's parameters. You can also save the events you have selected (events are selected by clicking on them) to a file.
  • Create planes and polygons in 3D.
  • Navigation through the scene is performed using the mouse - you can rotate and pan the scene and zoom into areas of interest.
 

Event Filtering And Viewing

Event Filtering - You have a set of events and you apply different filters to the set of events, for example, filter events in a certain polygon or in a certain magnitude range.

Jdi has three basic filters (event parameters, plane and polygon) which you can combine using boolean operations (and, or, not) to create new filters. Using this method you can create some interesting and advanced filters, for example, all events for the last two years greater than magnitude 2.0 that do not occur in a set of polygons.

Event Viewing - You then want to display the events in a filter using different symbols while sizing and colouring them according to some event parameter, for example, show events as spheres, size them by magnitude and colour them by time.

Once you have created your filters you can view any number of them at one time, for example, show the entire set of events as pixels, to see where you events occur, and highlight the large events by showing them as spheres.

Jdi also allows you to export filters to an evp file which is useful when you want to bring events into other packages.

The first picture below shows the three basic filters (plane, polygon and parameter) while the other picture demonstrates the ability to display a large number of events as pixels (more than 225000).

Solid And Line Contours On Any Surface

Jdi can create contours of seismic parameters on any surface. Jdi also has an open format for its contours allowing one to process data with scripts or other packages and to then import the data into Jdi for visualization.

Intuitive User Interface

Jdi is designed to be intuitive, you can start being productive with Jdi within the hour.

To use Jdi you have to create a project. Once you have a project you can then import mine planes, structures, events and contour data into the project. You can also create contours, planes, polygons and folders (folders are used to organise the elements of your project). You interact with the elements of your project via the 3D view and a Windows Explorer type interface, that is, elements are organised in a tree, you write click on them and perform actions or edit properties.

Available On Windows And Linux
Jdi is available on Windows and Linux, which means that you choose where you want to do your work.

Future Enhancments
The following are features that will be added to Jdi in the near future:

  • Time histories.
  • 3D meshes and iso-surfaces.
  • Vector plots.
  • Visualization and filtering of arbitary spatial data.
  • Creation of NURBS surfaces.
     


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