Orientação a objeto implementado em LabView

Abstract

The objective of this paper is to present the concepts and fundamental structures of the LabVIEW programming language and, based in this concepts, introduce the language´s object-oriented features. LabVIEW is a block diagram based language, in which the code is represented by graphical elements instead of code lines. The functions are represented by boxes and the variables by wires. The boxes have connectors in which the wires are connected, representing the input arguments of a function. LabVIEW uses the dataflow paradigm, in which the order of execution of the code is not defined by the order in which it is written but by the order in which data becomes available along the code´s execution. This language is mainly directed to be used by researchers and engineers. Because of its simple representation and concepts it allows professionals with no deep knowledge in science computing to develop high complexity efficient applications. In this paper we are going to show some examples and comparisons between code portions written in LabVIEW and JAVA or C++. We will also show the way of building an object-oriented code from this language. At the end of the paper we will show how to implement the singleton and factory method design patherns.