Block Diagram Options Page

»Table of Contents

Select Tools»Options to display the Options dialog box and select Block Diagram from the Category list to display this page.

Use this page to set block diagram options.

This page includes the following components:

Show dots at wire junctions—Displays a dot where a wire branches, helping to differentiate between a wire junction and the crossing of unconnected wires. This checkbox is checked by default. Remove the checkmark from this checkbox to display wire junctions without dots.
Show tip strips over terminals—Displays tip strips when you idle the Wiring tool over nodes and input or output terminals of VIs or functions. This checkbox is checked by default.
- Use control caption for subVI tip strips—Displays object captions on subVI tip strips instead of object labels. This checkbox is checked by default.
Show subVI names when dropped—Displays VI and function name labels when you place them on the block diagram. This checkbox is unchecked by default.
Delete/copy panel terminals from diagram—Allows you to delete front panel objects by selecting their terminals on the block diagram and pressing the <Delete> key. This checkbox is checked by default. This option also allows you to copy front panel terminals on the block diagram by pressing the <Ctrl> key while you drag the terminal to a new location on the block diagram. Mac OS Press the <Option> key. Linux Press the <Alt> key.
Configure Express VIs immediately—Displays a configuration dialog box immediately after you place an Express VI on the block diagram. This checkbox is checked by default.
Enable auto wiring—Enables autowiring. This checkbox is checked by default.
- Minimum distance—Indicates the minimum distance in pixels objects need between them so they can autowire. The default is 4 pixels.
- Maximum distance—Indicates the maximum distance in pixels objects can be separated and still autowire. The default is 32 pixels.
Show wiring guides—Displays wire stubs when you move the Wiring tool over unwired terminals. This checkbox is checked by default. If automatic tool selection is enabled, LabVIEW ignores this option and always shows wiring guides.
Use transparent name labels—Uses transparent labels for objects on the block diagram. This checkbox is unchecked by default.
Place front panel terminals as icons—Displays terminals for new front panel objects you create as icons. This checkbox is checked by default. Remove the checkmark from this checkbox to display terminals for new front panel objects as data types. You also can right-click existing front panel terminals to display the terminals as icons or data types.
Enable automatic error handling in new VIs—Suspends execution, highlights the subVI or function where the error occurred, and displays an error dialog box for any error that occurs when running a new, blank VI. This checkbox is checked by default. Remove the checkmark from this checkbox to disable automatic error handling for all new, blank VIs. You also can disable automatic error handling for existing VIs. You also can use the Automatic Error Handling property to enable automatic error handling for a VI programmatically.
Enable automatic error handling dialogs—Suspends execution, highlights the subVI or function where the error occurred, and displays an error dialog box for any error that occurs when running an existing VI with automatic error handling enabled. This checkbox is checked by default. Remove the checkmark from this checkbox if you do not want LabVIEW to suspend execution and display an error dialog box when an error occurs, even when the VI has automatic error handling enabled. You also can disable automatic error handling for existing VIs.
Enable automatic wire routing—Finds a route for wires as you wire them. LabVIEW routes a wire around existing objects on the block diagram, such as loops and structures. LabVIEW also routes a wire to decrease the number of bends in the wire. When possible, automatically routed wires from control terminals exit the right side of the terminal, and automatically routed wires to indicator terminals enter the left side of the terminal. This checkbox is checked by default. Remove the checkmark from this checkbox to disable automatic wire routing for all new wires. You can temporarily disable automatic wire routing and route a wire manually.
Auto insert Feedback Node in cycles—Inserts a Feedback Node when you wire the output of a subVI, function, or group of subVIs and functions to the input of that same VI, function, or group. LabVIEW inserts Feedback Nodes only on wires in For Loops and While Loops. This checkbox is checked by default. Remove the checkmark from this checkbox if you do not want LabVIEW to insert Feedback Nodes automatically.
Place subVIs as expandable—Displays subVIs you place on the block diagram as expandable nodes. This option does not affect Express VIs. This checkbox is unchecked by default. You also can use the Expand When Dropped As SubVI property to display a subVI as an expandable node programmatically.
Place structures with Auto Grow enabled—Resizes new structures you place on the block diagram to add space for any objects you place or move in the structure near the structure border. This checkbox is checked by default. You also can enable the automatic resizing behavior for existing structures.
Show red Xs on broken wires—Displays broken wires as dashed black lines with red Xs in the middle. This checkbox is checked by default. Remove the checkmark from this checkbox to display broken wires as dashed black lines without red Xs in the middle.
Labels snap to preset positions on terminals—Snaps labels and captions for new objects on the block diagram to preset positions. This checkbox is checked by default.
Labels locked by default—Locks labels and captions in place for new objects on the block diagram. This checkbox is unchecked by default.
- Default label position—Sets the default label position for objects on the block diagram. The default is the initial label position LabVIEW automatically sets for each object.

Block Diagram Options Page

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