National Instruments 374318A-01 用户手册

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Chapter 2
Measurement Studio Measurement Computing Edition .NET Class Libraries
2-16
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Customize the appearance of the control using 3D lab styles or classic 
2D styles and change the color and length of ticks and labels.
Configure the format of value labels to engineering or date/time.
Use the Measurement Studio knob, gauge, and meter controls, as shown in 
Figure 2-4, to input and display numeric data on your user interface.
Figure 2-4.  Windows Forms Knob, Gauge, and Meter Controls
With the knob, gauge, and meter controls and the classes that interface with 
the controls, you can perform the following operations:
Specify the start and sweep angle of the arc programmatically or from 
the Properties window.
Use automatic division spacing, custom divisions, and invert the scale.
Use the Measurement Studio slide, tank, and thermometer controls, as 
shown in Figure 2-5, to input and display numeric data on your interface.
Figure 2-5.  Windows Forms Slide, Tank, and Thermometer Controls