CSpray: a collaborative scientific visualization application

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Abstract
We present the design and implementation of Collaborative Spray or CSpray (pronounced 'sea spray'). CSpray is a CSCW (Computer Supported Cooperative Work) application geared towards supporting multiple users in a collaborative scientific visualization setting. Scientists are allowed to share data sets, graphics primitives, images, and create visualization products within a view independent shared workspace. CSpray supports incremental updates to reduce network traffic, separates large data streams from smaller command streams with a two level communication strategy, provides different service levels according to client's resources, enforces permissions for different levels of sharing, distinguishes private from public resources, and provides multiple fair and intuitive floor control schemes for shared objects. Off the shelf multimedia tools such as nv and vat can be used concurrently. CSpray is based on the spray rendering visualization interaction technique to generate contours, surfaces, particles, and other graphics primitives from scientific data sets such as those found in oceanography and meteorology.

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