IGS Project Iceland Group 7

• Jesper Sundien• Petter Holmberg• Alexander Harju• Shaman Mahmoudi

Program Features

• Visualizes seismic events in the Iceland region using a visually pleasing 3D representation of geographic and seismic data.

• Allows the user to interactively select which seismic events to view, in regard to temporal and spatial context.

• Allows the user to freely view the seismic events from any angle and distance by modifying these preferences in real-time.

Visualization of Seismic Events

• Seismic events are represented as colored, semi-transparent spheres centered at the origin of the event relative to the geographical representation of the area.

• The size of an event sphere represents its spread (distance) factor.

• The color of an event sphere represents its magnitude factor. Weak events are almost white, and the stronger the event is, the more red it will appear.

• To allow the user to easily locate the geographic position of the event on the terrain surface, a narrow cone, centered at the event, is drawn through the terrain surface.

The Graphical User Interface

• The user controls the entire application with a mouse.

• Visualization preferences for the data, including preset viewing angles, are modified with an intuitive button interface controlled by left-clicking.

• Viewing angle and distance of the map is controlled by using the right or both mouse buttons at once and moving the mouse pointer.

Controlling the data selection

• The user controls the data parameters with plus and minus buttons using the mouse.

• Confirm selection with OK button.

• Play, stop and pause buttons are used to control the animation.

• Animimation speed can also be changed.