LabVIEW's charts and graphs let you display plots of data in a graphical form. Charts interactively plot data, appending new data to old so you can see the current value in the context of previous data, as the new data become available. Graphs plot pre-generated arrays of values in a more traditional fashion, without retaining previously-generated data. In this chapter, you will learn about charts and graphs, several ways to use them, and some of their special features. You will also learn about LabVIEW's special intensity charts and graphs, 3D graphs, and digital waveform graph. Finally, you will take a look at the waveform data type, a useful LabVIEW representation for time-based data. Goals Understand the uses of charts and graphs Be able to recognize a chart's three modes: strip, scope, and sweep Understand mechanical action of Boolean switches Recognize the difference in functionalities of charts and graphs Know the data types accepted by charts and graphs for both single and multiple plots Customize the appearance of charts and graphs by changing the scales and using the palette, legend, and cursors Be familiar with the intensity and 3D charts and graphs to plot three dimensions of data Know about the digital waveform graph for displaying digital signals Understand the waveform data type, what its components are, and when you should use it Learn about dynamic data, how it relates to the waveform data type, and how to use it Be able to use a mixed signal graph to plot multiple types of plot data and use the multiplot cursor to view timing relationships between plots Use graph annotations to highlight data of interest on a plot | |