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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.
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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.
COPYRIGHT
2002 © ISS INTERNATIONAL LIMITED
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