CashFlow, A Visualization Framework for 3D Flow - Studierstube ...

Introductionis then executed using Coin3D’s native traversal mechanism. These traversal mechanismprovides a scene graph traversal as a primary data flow network and the ability tobuild a secondary data flow network using field connections, that create a network oflinked nodes. Finally, the Studierstube extensions[Sch96b][Sch97a] to Coin3D makeany software based on Coin3D, including the proposed visualization toolkit readilysuitable for immersive virtual reality scenarios, in case such a solution is desired.In summary, implementing a scientific visualization toolkit on top of Coin3D canbe done by concentrating purely on the visualization aspects. The result is a set ofcomplementary toolkits that together can address more complex applications than ascene graph library or visualization toolkit alone.To understand the proposed design called "CashFlow", we will introduce several visualizationalgorithms suitable for flow visualization. The most important visualizationtoolkits will be compared with respect to the used data flow networks. The softwaredesign of CashFlow is explained in detail. The necessary components for a flow visualizationsystem using a flexible data flow framework are introduced. Especially thelinking between the scene graph concept and the data flow model is addressed in thisthesis. Our objective is to provide raw data to the system, then let it flow through aseries of transformations, and finally pass the data to a rendering method. Of coursewe want the maximum flexibility and extensibility for all these components.2