Common Tools in NI LabVIEW


In a graphical programming language such as NI LabVIEW software, the mouse is the main way to interact with the programming environment. The mouse pointer must be able to accomplish many different tasks, like as selecting, the wiring, the highlighting text, and so on. This module examines not only the many functions that the mouse can accomplish in LabVIEW but also how to go about completing those tasks.

Selecting a Tool
You can create, modify and debug VIs using the tools provided by LabVIEW. Tool is a special operating mode of the mouse cursor. Operating mode of the cursor corresponds to the icon of the tool selected. The LabVIEW chooses which tool to select based on the current location of the mouse.

 

Figure 1. Tools Palette

You can manually choose the tool you need by selecting it on the Tools palette. Select View»Tools Palette to display the Tools palette.

Shortcut Menus
All LabVIEW objects have associated shortcut menus, known as context menus, pop-up menus, right-click menus. You create a VI, then use the shortcut menu items to change the appearance or behavior of front panel and block diagram objects. Access shortcut menu, then right-click the object.

 

Figure 2. Shortcut Menu for a Meter

Property Dialog Boxes

Objects in the front panel window also have property dialog boxes that you can use to change the look or behavior of the objects. Press Right-click an object and select Properties from the shortcut menu to access the property dialog box for an object. Figure 3 shows the property dialog box for the meter shown in Figure 2. The options available on the property dialog box for an object are similar to the options available on the shortcut menu for that object.

 

Figure 3. Property Dialog Box for a Meter

You can select multiple objects on the front panel or the block diagram and edit any properties the objects share. Select multiple objects, use the Positioning tool to drag a selection rectangle around all of the objects you want to edit or hold down the <Shift> key while clicking each object. Then Right-click an object from the selection and select Properties from the shortcut menu to display the Properties dialog box. Properties dialog box only displays tabs and properties that the objects you select share. To select similar objects to display more tabs and properties. In case if you select objects that do not share any common properties, Properties dialog box does not display any tabs or properties.

Front Panel Window Toolbar
Each window has a toolbar associated with it. To Use the front panel window toolbar buttons to run and edit the VI.

Following toolbar can appears on the front panel window.

Block Diagram Window Toolbar

 

Click the Clean Up Diagram button to automatically reroute all existing wires and rearrange objects on the block diagram to generate a cleaner layout. Configure the clean up options, select Tools»Options to display the Options dialog box and select Block Diagram: Cleanup from the Category list.

Other buttons are unique to the block diagram toolbar are primarily used for troubleshooting and are covered in the Debugging Tools document

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