Currently, there is no way to access the historical data on a stripchart. The only way to manage this data is to maintain a separate buffer and update it whenever you add data to the strip chart, which is inefficient and tedious. Accessing data is possible for graph controls using the data attribute:
GetPlotAttribute (panel, PANEL_GRAPH, plotHandle, ATTR_PLOT_XDATA, &data);
Something similar should be implemented for the strip chart, either as an attribute in the getTraceAttribute function, or as a standalone function (getTraceData, etc.)
I have had severe problems in development, due to a high synergy between my lack of attention and CVI behavior in search/replace dialogs.
I am talking about the fact that Find/Replace parameters [namely search directories] are stored at REGISTRY level, so that they remain the same across different workspaces.
Having to work with different version of the same software product, I have found myself looking into the wrong sources, or even doing mass updates, due to the fact that different projects have identically named sources and includes, just in different directory trees, and rapidly switching from one workspace
to the next I didn't "mind the step"
My suggestion, thus, is to store find/replace parameters at workspace or project level, so as to avoid the aforementioned inconvenience
When designing a UI it is sometimes necessary to have text composed of indices and superscripts, e.g. R^2, chi^2, ...
Right now this can be accomplished only by using several texts in different sizes and by manually aligning these text fragments. This is quite tedious
Hence I would suggest permitting simple control sequences to automatically have text parts in superscript, subscript, italics and bold within the very same text message (possibly similar to HTML)
This would make it a bit easier to edit an old project without the issue of upgraded UIRs because it might get loaded by the wrong CVI version and one edits and accidentally saves it before noticing.
Visual Studio installs a helper EXE which launches the right Studio for any SLN.
If MS didn't patent this , it would be a nice feature for CVI (and LabView?), too.
Even after using CVI for many years I still find the DirSelectPopup confusing, because it provides a file selector, displays files, and even allows to select files...
I would prefer an improved/modified function such that the DirSelectPopup only shows directories, does not provide a file selector, etc.... This should make it much more obvious that one is selecting a directory, not a file...
If you have, say, three controls called MAX_1, MAX_2, MAX_3 arranged vertically. If I select them all, copy and paste, the new controls appear as MAX_4, MAX_5 and MAX_6 but in the wrong order to what you would expect.
A similar issue occurs with assigning a group of controls to a control array, they always seem to be in the wrong order, usually reversed.
Customer who has used CVI for years and likes it was looking a Mstudio for the reason that a lot of his new engineers can't or don't do the regular C programming. He likes Mstudio as an idea but, with the extra cost of adding MS Visual Studio and dealing with a they support/We support issues of having two SW pkg from 2 different companies gives him pause about purchasing. He stated he likes CVI because if there is an issue (even if rare) he know that NI will help to figure it out. I let him know I'd provide the feedback.
It has been suggested much earlier here, but obviously passed out of mind:
When using 'Go to Definition' (CTrl+I) while in release configuration, CVI tells that no source code information was found for the identifier '...', because 'Browse information is not available in the Release configuration'... (still true for CVI2010)
This can and should be improved!
And it might be a good opportunity to also add the reverse process, 'Goto Declaration', suggested here
I would like to have the possibility to store the uir-file not as a tui-file (old-fashioned ini file), instead as a xml file.
If the label area is fixed size (i.e. option "Size to text" disabled) and is higher than the font height, it would be useful to have an attribute to set the text vertical alignment:
Now the text can be justified only horizontally (left justified, centered, right justified)
Please conisider supporting multi-touch screen gestures in a similar manner to the mouse events. Windows 7 Mulittouch capabilities are a good place to start. http://msdn.microsoft.com/en-us/magazine/ee336016.
The GUI of the future will most certainly be touch screens, and users expect to be able to use gestures such as pinch, fling, spread, rotate, etc.
The JIT debugger option in CVI 2010 is a nice step in the right direction, but only being able to debug builds that were compiled in "Debug" mode pretty much defeats the whole purpose of the idea. Debug builds are much too slow to be used in production and on my machines, if I ever use a Debug build, it probably already runs under the debugger anyway! Seeing that CVI is not even an optimizing compiler I cannot understand why release builds cannot be properly debugged.
Thing is, the crashes in production are the important ones that I absolutely need to be able to investigate, and CVI does not provide ANY assistance in this area apart from being able to at least generate a MAP file. This is what I currently have to do: I have included code in my application that creates a memory dump and sends it to me when the application crashes or hangs. This dump I can then load into WinDbg and with a few tricks I can at least import the CVI MAP file to get some functions names in the stack traces, but that's it, all investigations have to be done on the assembly level. To quickly decipher stack frames, e.g. to have a look at local variables, I often even have to throw my OWN code into a disassembler (IDA Pro)! I'm really glad that this way I am now at least able to debug most crashes at all, even when they happen far away in a different country, but this aren't the 80s anymore and you can probably imagine that this process is hard and time consuming and very much annyoing. With code compiled in VC on the other hand I can load a MiniDump and have a look at the stack trace, variables and code on the source level without much hassles.
Some ideas that could help:
- Let me (JIT) debug release builds
- Let me load MiniDumps into the debugger or
- create PDB files that I can use together with a debugger that can load MiniDumps (WinDbg, VS)
- Let me not only use an external compiler but also an external linker that generates PDB files for release builds (I don't like this solution as I use C99 features VC does not support, but I'm desperate here)
Okay, rant over for now, I think I really needed to vent a bit. Thanks for reading this far ;-)
All the best, Marcel
My CVI application started to generate linker errors immediately after I upgraded from CVI 2012 to CVI 2013. A number of other people have reported exactly the same problem, with the linker unable to resolve symbols found in IMAQdx or nivision.
This means that the final release of the new version of CVI cannot have been tested when using the image acquisition or image processing add-ons.
I suggest that, in future, new versions of all tools are subjected to automatic regression tests against the examples distributed by National Instruments before release. Because it obviously doesn't happen now.
sometimes it woud be useful to have plot symbols available that are larger than the fixed standard size. Hence I suggest providing a plot attribute ATTR_TRACE_POINT_SIZE where one could set the point size (e.g. in pixels)
In earlier versions of CVI source files needing compilation were marked in a different color, unfortunately this feature has been removed in CVI2013. The suggestion is to re-introduce this feature...
Changing an include file immediately shows affected source files
It's always clear how time-consuming it is pushing the RUN button, i.e. if there are files *and how many) to be compiled first
I noticed that LabVIEW has two ways to download instrument drivers: direct downloads from IDNET and through the NI Instrument Driver Finder.
[NI Instrument Driver Finder Menu Option Image]
[Alternative NI Instrument Driver Finder Menu Option Image]
When downloading drivers directly from IDNET, the file must first be unzipped and then placed in the <National Instruments>/labview xxxx/instr.lib folder.
The easier option when working with LabVIEW, the NI Instrument Driver Finder, downloads the files, unzips them, and instantly gives you access to example code or palette of VIs for communicating with said instrument.
If possible, could we add a similar tool to LabWindows CVI? It would be nice to have a menu option which would open a CVI Instrument Driver Finder.
The interface could then allow users to easily find a driver, download it to their Instruments Folder, see example code and start work.
Since probably 30% of all LabVIEW adoption comes from driver downloads and driver development, maybe this is an investment of resources worth looking into?
[Image of NI Instrument Driver Finder]
[Image of Instrument Driver Finder example code, project access, and palette access]
I would like to see an configuration of batchbuilt process. I have a big workspace with many projects; and would like to create different setups, like "compile only all server projects" or "compile all client projects". The workspace contains a big server-client -based software packages; some dll-projects used for server side only, some only client side.
Following this idea already implemented, it could be good to add up/down keys to rows and columns selectors.
At present, if the table is in hot or normal mode you can click on a cell in the table preview in the Quick Edit window to select the corresponding row/column: going to editing them is made easy this way. However, if the table is in indicator mode you cannot click on the cella to select row and column. The same applies if you want to reach a column/row out of visible area of the table: the only solution to that is to double click on the column or row selector and type in the number you want. Not easy nor fast, and prone to errors. Much better to click on a button and increment / decrement the active column index
I'm thinking to something like that:
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