Manual of 3-D Visualization of Global Seismic Tomography Model on Web Browsers

• File


• Import config file
You can download the control parameters on your device. The configuration file (.json) at the moment of pusshing the botton is downloaded. The configuration file contains the control parameters of this web application. It is written by text data.


• Export config file
You can upload a configuration file on your device and restart the visualization.


• ScreenShot
Screenshot is made and downloaded into your device.



• IsoDepth

It visualizes isodepth (or isoradius) of seismic tomography data. There can be two isodepths ("IsoDepth1" and "IsoDepth2"), Earth's surface ("Surface"), and the Earth's core surface ("Core") with their opacities ("Opacity1", "Opacity2", "Opacity (Surface)", and Opacity ("core")). The depth of isodepths and the graphics of Earth's surface can be selected from the dropdown lists. Color of the core can be changed.


• Cross-section

It visualizes cross-section of seismic tomography data. There can be three cross-sections ("Cross-Section1" to "Cross-Section3"). The cross-sections pass through the Earth's center and its angles are determined by "θ" and "ϕ". θ and ϕ specify the normal vector of cross-sections by polar coordinate system (θ = 0° at the north pole and 180° at the south pole with a domain of [0°, 180°]. ϕ = 0° at the prime meridian and 180° at east longitude 180° with a domain of [0°, 360°].). The normal vector ( θ, ϕ ) of cross-section that passes a great circle between 2 points of (latitude, longitude) can be calculated by cross-section calculator. If "Spin" checkbox is checked, the cross-sections are fixed to the Earth. If it's not, they are indipendent from the auto rotation around the spin axis.


• IsoSurface

It visualizes isoSurface of seismic tomography data. There can be two isosurfaces ("IsoSurface1" to "IsoSurface2"). Value of isosurface can be adjusted by sliders. Color of the isosurfaces can be changed. The visualization domain of radius of the isosurfaces can be narrow down by selecting "Upper Bound (km)" and "Lower Bound (km)" by sliders.



• Clip Planes

Objects are clipped by the clip planes. There can be three clip planes ("Plane1" to "Plane3"). The planes pass through the Earth's center and its angles are determined by "θ" and "ϕ", similarly to cross-sections. Objects in the side of the normal vector is visualized. If "Intersection" is checked, objects that are located in the intersection of all the unclipped domains of clip planes are visualized. If "Intersection" is unchecked, objects that are located in at least one of the unclipped domains are visualized. If "Spin" checkbox is checked, the clip planes are fixed to the Earth. If it's not, they are indipendent from the auto rotation around the spin axis. Clipping Objects are selected by the checkboxes.



• Position

Coordinate of camera and the Earth's center are displayed. The position of camera and the Earth can be handled by mouse and arrow keys.