National Instruments Measurement Studio Graph Control

Chapter 3 Measurement Studio Visual C++ Class Libraries
© National Instruments Corporation 3-11 Measurement Studio User Manual
Graph Control
Use the Measurement Studio ActiveX graph control, as shown in
Figure 3-3, to plot and chart two-dimensional data. The CNiGraph class
provides the Visual C++ interface to the ActiveX graph control.
Figure 3-3. ActiveX Graph Control
With the graph control and the classes that interface with the control, you
can perform the following operations:
• Plot and chart data.
• Configure a graph to contain multiple plots to show separate but
related data on the same graph.
• Configure a graph to include multiple Y axes so that plot data fits the
graph plot area.
• Use cursors and annotations to identify key points in plots and the
plot area.
• Configure cursor snap modes to be fixed, floating, nearest point,
andtoplot.
• Pan and zoom interactively.
•Use the CNiAxis class to interface to a single axis of a graph control.
This feature allows you to modify the appearance and behavior of
the axis.
• Automatically label axes with log or inverted numeric scales.
• Configure the axis modes for manual scaling or autoscaling.
• Configure the graph for fixed, strip, or scope charting.
• Customize the graph by using ticks, labels, and value pairs.