These fly-through animations showcase some of the techniques and features Tekmap Consulting uses to create 3-dimensional fly-throughs, with its custom software. The animation software uses the open source OGSF GRASS library for visualization, and the World Wind animations use the NASA World Wind SDK.
The multibeam data were processed using open source software including MB-System and GRASS. The fly-through animations were created using a customized version of the GRASS 3D viewer or the NASA World Wind SDK.
Fathom Five National Marine Park
These animations were created using multibeam data collected at the Fathom Five National Marine Park in Canada. The multibeam data were collected by the Canadian Hydrographic Service and the Geological Survey of Canada for Parks Canada.
Flight Along the Niagara Escarpment
This animation flies along the Niagara Escarpment past 2 ancient waterfalls (now completely submerged).
Flight Along a Bedrock Popup
This animation flies along a bedrock popup east of Flowerpot Island in Fathom Five National Marine Park.
Multibeam Fly-Through in Georgian Bay using NASA World Wind
This animation shows high resolution multibeam data and imagery embedded in the NASA World Wind Viewer. The viewer is a custom application developed by Tekmap Consulting using the World Wind SDK (http://worldwind.arc.nasa.gov/java/).
The multibeam data were collected by the Canadian Hydrographic Service and the Geological Survey of Canada for the Fathom Five National Marine Park (Parks Canada). The depth range of the multibeam data is 2 to 175 m. The vertical exaggeration is 2x.
Beaufort Shelf
These animations were created using multibeam data collected on the Beaufort Shelf. The multibeam data were collected by the Canadian Hydrographic Service and the Geological Survey of Canada.
Flight Through a Field of Pingo-Like-Features
This animation flies through a field of pingo-like-features (plf's) on on the Canadian Beaufort Shelf. The movie demonstrates a new compass overlay (upper left).
Flight Around a Large Mud Volcano
This animation flies around a large pingo-like-feature (PLF) or mud-volcano on the Canadian Beaufort Shelf.
Flight Along a Recent Ice Scour Event
This animation flies along a recent ice scour event on the Canadian Beaufort Shelf. The movie demonstrates the use of the GRASS cutting-planes feature in the ogsf library. The cutting-plane, or profile, provides a moving cross-section of the data. This provides valuable information about the changing morphology of the scour event. Tekmap has modified the cutting-plane function to include evenly spaced (1 m) horizontal reference lines.
This movie also demonstrates the use 2D overlays. The overlays include a location map with moving cursor showing the current centre of view, a colorbar, a scalebar, and a logo image. The scalebar represents the scale at the centre of view.
World Wind Animations
These animations were created using the NASA World Wind software development kit (SDK). The World Wind SDK is an open source cross-platform geographic data viewer.
Flight Around the Coast of Iceland
This animation uses the Compound Animator to fly to a series of keyrame positions around the coast of Iceland. A ScheduledInterpolator was used to set timing between each keyframe position. The vertical exaggeration of the scene is 4x.
Bay of Fundy Tidal Power
This animation flies up the Bay of Fundy of Nova Scotia over the FORCE tidal energy test site. Custom layers include high-resolution bathymetry, KML overlays, 3D Collada model, and custom cloud and sea-surface overlays.
This animation was created from multibeam data collected using the Sync Humminbird Logging System (SHLS). The SHLS is a compact, easy to use shallow water mapping system. It uses a customized Humminbird Wide 3D Paramount fishfinder.
This animation was created from Finite-Volume, primitive equation Community Ocean Model (FVCOM) tidal model data. The data was extracted using custom software built on the PySeidon suite of tools.
Tidal Power Density, Bay of Fundy
This animation shows tidal power density, as watts per square metre (w/m2), from Digby Neck, Nova Scotia. The power density is animated over a 24 hour period and a depth range from 0 to 50 metres. The animation illustrates how the power density varies over time and depth.
