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

Implementation4.6. Implementation of Data Consumers4.6 Implementation of Data ConsumersThe Data Consumer node is an abstract class unify all nodes reading or writing data inthe CashFlow framework. The remaining part of this chapter resumes the three derivedclasses of Data Consumer node and closes with a class hierarchy of CashFlow nodeson page 97.4.6.1 SoLoaderNodeFigure 4.19: CashFlow: Data flow model - Loader nodeOne minor part is to be able to load several binary data files. The SoLoaderNodeis the base class for binary loaders. It provides useful methods like conversions fromlittle endian to big endian and vice versa as well as methods for checking the size of afile. This is important, because a lot of binary data files can only be loaded correctlyif the header information in the file is crosschecked with the file size. Based on thispieces of information a assumption is made whether the binary files byte order is in bigendian 8 in little endian 9 byte order.8 big endian byte order: the lowest address in memory is stored in high-order byte, the highest address inmemory is stored in the low-order byte (MAC,SGI).9 little endian byte order: the lowest address in memory is stored in low-order byte, the highest address inmemory is stored in the high-order byte (intel,PC).92