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

Related WorkAll of these frameworks and systems suite very special needs. VTK for instancehas a large set of volume rendering algorithms and can be used and extended usingprogramming languages like C++, JAVA, Python, PERL and TCL.Evaluating these software packages lets one question arise. How can these softwareframeworks be compared in a suitable way. Since all visualization frameworks use adata flow model, it was the most obvious thing to compare. Figure 2.1 shows a generalprocess flow diagram used in scientific visualization.Figure 2.1: Visualization PipelineScientific visualization receives input from a wide variety of data sources, bothfrom sensors, such as medical scanners (CT, MRI, UltraSound, PET, SPECT ) as wellas numerical simulation (FEM, CFD).• Data GenerationData can be obtained from real fluid flows or via numerical simulation. Forcomputation of simulation data the two most important methods are:– Finite Element Method (FEM)to simulate a propagation of forces.– Computational Fluid Dynamic (CFD) systemsthat solve differential equations like the navier–stokes equation.• Data Enrichment / Enhancementare techniques where parts of the data are selected or filtered. Due to the large4