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Do you have an idea for LabVIEW NXG?
Use the in-product feedback feature to tell us what we’re doing well and what we can improve. NI R&D monitors feedback submissions and evaluates them for upcoming LabVIEW NXG releases. Tell us what you think!
It would be beneficial if nodes had the ability to retain data from their previous execution. Along with "Use Default If Unwired" it would save memory allocation and coding time if there was a "Use Current Value If Unwired" selection which would retain the node's value and pass the last executed value.
This figure illustrates one application where "Use Current Value If Unwired" would save memory and increase performance instead of using multiple property nodes or local variables for retaining the output data. It would also eliminate extra wiring in every case this node is not used.
I think there should be a way to reinitialize a stacked shift register to the originally initialized value so you can clear out the contents of every iteration all at once. For example, the code below, implemented with 4 individual shift registers:
Could be implemented with 1 stacked shift register with a reinitialize terminal:
Populating values to the "enum" control is not possible by using the "strings" property node and hence to populate a large data to a "enum" one has to create a "Ring" control use the "strings" property and replace that "ring" with the enum (or if you have enough time enter them manually) .
So why not use the "Strings" property of "Enum" to write values to it directly..See the image attached
- add COM compatibility to .NET Interop Assembly builds
- add COM compatibility to Shared DLL builds
I missed LV help information about the need to add a key file (*.snk) to the project first, before you can select it for signing the assembly. Unless you do that the file filter (*.snk) seems to fail when browsing.
In large application there are huge amount of parameters. If there is a lot of parameters usually there is also lot of parameter handling code in block diagram. This code can be moved to away if there is ready mayde parameter handling system. Here are my basic needs\ideas to this kind of system:
- Parameter values are read from e.g. CSV-file when there is a first call
- Parameter value must be changeable during code execution
- When value is changed new value must be updated to e.g. CSV-file
- User can change parameter name from project view. The new name is updated to all block diagrams (compare to shared variables)
- New parameters can be created from project view
- All parameter values can be changed and read from block diagram by using proper VIs
- Parameter library settings e.g CSV-file format and name can be set in project view
Is there any one else who needs this kind of system?
Certainly, every body tries to evaluate a vi in terms of performance. This includes the time which a particular code takes to run. We have to use the tick cout vi in order to determine the time of execution.
How about adding an additional button in the toolbar itself which measures the time taken by a particular code to execute?
This can certainly be a good feature in LabVIEW!!!
In text based language, define some constants with meaningful names are very common task. For example, you typically define constant in C like this:
#define RED 1
#define GREEN 2
#define BLUE 3
In LabVIEW, you can use ring to define them:
and then you can use the constant very simple:
But the following definition can not be implemented with ring:
#define RED 1
#define GREEN 2
#define BLUE 3
#define DEFAULT 1
Here, DEFAULT is the same with RED. But this is not permitted by ring, it will popup a warning if you try to do this: "Waring: Identical values in the Values list are not permitted. The oblject cannot be updated until you assign new values or remove items with identical values. "
I know you can use local or global varibles to define constant as a work around, but variables have performance overhead, it is not the best solution as a result.
I propose to create a "const" that allow different items share the same value, and the other behaviours will be the same as a ring. You can also add "picture const" and "text & picture const".
The following topic on NI discussion forums inspires me to propose this idea.