The Plot and Chart methods have optional parameters that you can use to exactly specify how you want data to be visualized. The x-axis data does not correctly reflect the actual relative time the data was collected because the actual time period between each sample is 0.01 seconds (100 Hz). The temperature data shown in Figure 1 is plotted on the y-axis while the x-axis is automatically incremented by one unit for each y value plotted.
In your program, replace simulation with actual data acquisition. Throughout this application note, several similar functions are used to simulate different types of measurements. Note: The GenerateTemperatureData function generates a one-dimensional array of values to simulate acquisition of temperature measurements. 'Generate random data to simulate 800 temperatureĭata = GenerateTemperatureData(800, 230#) The following example plots the engine temperature data when a user presses the Display Data button in the program shown in Figure 1: For example, imagine that you are collecting a single set of engine temperatures at a rate of 100 Hz. The Plot methods display real-time data acquired at relatively fast speeds or with a single acquisition. New data is appended to an existing plot, and you can preserve historical data in the graph. See the following section on Plotting Data.
#WAYS TO DISPLAY INFORMATION VISUALLY DOWNLOAD#
Download the Visualizing Data in Visual Basic example and read this application note at your computer so you can test the concepts and example.
#WAYS TO DISPLAY INFORMATION VISUALLY HOW TO#
Note: This application note is designed to teach you how to visualize two-dimensional data with the CWGraph control through interactive discussion and examples. Customize the graph to look exactly the way you want it to look.Plot acquired signals and chart historical data.By the end of the application note, you will be able to: This application note describes how to work with the CWGraph control interactively in its property pages and programmatically using Visual Basic code. The Measurement Studio Visual Basic tools were formerly known as ComponentWorks. Note: Measurement Studio includes tools to build measurement applications in ANSI C, Visual C++, and Visual Basic. The Measurement Studio Graph (CWGraph) ActiveX control is a flexible tool that you can use in any ActiveX control container to visualize and interact with two-dimensional data in the way that is most meaningful to you. Real-time charting of engine temperatures during a test, plotting dynamic signals measured on a circuit board, and plotting historical yearly rainfall and average temperatures for a particular city are examples of data sets that you might visualize to examine the quality of a part, inconsistencies in signals, or trends in statistics. Visualizing data is an indispensable tool for quickly gaining a better understanding of what data represents and for communicating results to others.
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