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About JMak

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LabVIEW Information

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    LabVIEW 2010
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  1. Thanks for the replies. I just had a few more attempts and managed to make something with a shift register. I added a "wait" default state to the slave, which listens to the event notifier when tasks are finished. The problem with the example pattern is that the wait notifier stops the loop after one task, and I wanted it to continue until all the tasks are done. MasterSlave Events 3.vi
  2. I wanted to do it with a shift register, but couldn't think of a way. I'll try and get rid of the slave send notification. I just had an idea using an array size to select a case structure (or comparison) element... zero will be "read from notifier" and any other number will be "read from shift register". Shift register elements will go down to zero, then the notifier will be read. How does that sound? Edit - I just tried it and it didn't work because the "wait on notification" VI stops the slave loop after the first iteration, and the shift register still has commands left over, which exec
  3. Hi All, I have been trying to come up with a way to make my program more efficient. I am trying to use less nested case structures, and to avoid calling sub VIs multiple times. I looked at some of the design patterns, and there was not a sole design pattern available that did what I wanted, so I have tried to combine 3 patterns into one. My application has a user interface controlling a camera, and each function is context sensitive. For example, if the camera is already acquiring images, the "change video mode" function needs to unconfigure acquisition before adjusting the settings. If the
  4. I have added the special lines to the ini file. The mod works while the camera is running, so problem solved! It took me a while to work out what you did above, and now it makes sense, very good! So I can use the event without having the modified ini file. I hope NI adds the event as an official feature, I don't see how it could be harmful. Edit - I am trying to make the Sub VI, and don't know how to make a non-strict reference for controls for the sub VI connection diagram. I know error control and indicator clusters are in the palettes... Also, would I have to make this sub VI for each con
  5. Hi Darin, So, I can make a change to the ini file, and that event will become available in the menu? What's strange is that the mod worked in my version without me doing any hacking.
  6. Hi asbo, I got a reply on the NI forums and it looks promising - there is an event named "operate menu activation" which applies to the text rings, and if I feed out a boolean constant that cancels the mouse leave event while the menus are being used, the problem shouldn't occur. I'll post back if it works.
  7. Hi, I also posted this on the NI forums, as I can't find a solution... if anyone can help I'd be very grateful! I have a tab control set to change to a different page when the user's mouse enters or exits the tab control. The purpose of this is so that the tab control becomes invisible when coloured "transparent", depending on the user's mouse movement. This allows the full screen to be used for viewing the video when menus aren't needed, and menus can appear when the user moves into the tab area. There is also a button to lock the menu in place. This worked really well until I added some Te
  8. It looks like things are more complicated than previously thought. My software was made using an academic version, therefore it cannot be distributed for commercial use - for that, I need a separate commercial development license for everything, then I must rebuild the software with that and people who want to use it need to buy the vision development runtime license. This is only just beginning to make sense.
  9. Ok, I just tried making an installation, and I've added only the Vision and Labview runtime engines, so fingers crossed that it will work. I'll probably make another installer with more IMAQ add-ons if this doesn't work. It would be great if you could see which ones are needed automatically.
  10. I am confused because there are 2 different things here - NI Vision __Acquisition__ Software, which is £339.00 and the completely separate and more expensive NI Vision __Development__ Module which is £2,949.00. Do I need both or only the Acquisition software? Is there a cheaper license for users of an executable with this, or do they have to purchase the same software as the developers? Thanks, James
  11. I ran the exe file on a computer with only the 2010 RTE. Here is the list of missing modules: From this list can anyone tell me what software I need? I'm guessing I might need "Vision Acquisition Software" as well as "Vision Development Module"...? P.S. I used OCR to read the screenshot because I don't know how to attach images here. There might be some mistakes in the OCR. Missing subVI NI_Vision_Acquisition_5oftware.lvlib:IMAQdx Open Camera.vi in VI New Microscope 14lJlJx9lJlJ 22 5ep.vi. Missing subVI NI_Vision_Acquisition_5oftware.lvlib:IMAQdx Enumerate Cameras.vi in VI New Microscope
  12. I want to make an exe application from a .vi to install on another non-labview-installed machine (I want to use the runtime engine). The only problem I can foresee is that I built the software on a version of Labview that has all the add-ons, and I don't know which ones I have used. I want to know if there's a way to identify which add-ons or national instruments programs have to be installed in order for my exe to work. I know I used IMAQ and IMAQdx, and many of the programmer functions such as case statements, but there's probably more I don't know about. Sorry I can't attach the vi, it's
  13. Hi everyone, I have a problem I can't solve. I have a program where I am writing values to a table, and automatically generating the names for each row of data. I want to generate a new row of data each time I press the "add data" button, and the row number will be generated by an incremental variable that keeps track of how many times the switch has been pressed. I will also use the variable to index the array. My problem is, I can't find a way to make numeric variables in labview. I found this, and it looks like what I want to do, but I cannot make the double variable type. I can only make
  14. OK, I managed to work it out - I take the 1D array, and use "Index Array", set the index to zero, and the value turns into a boolean value, which can be sent to an LED indicator. You can also create indicator from the output directly, and this will create a line of LEDs in the front panel representing the array values. Hope this helps others!
  15. Hi, I want to be able to show the state of a digital input pin in real time, and it is harder than I thought it would be. In the test panels, there is a nice LED to show when the digital input is high or low - I want the same LED on my Labview program so that I know when the program is supposed to be triggered. I am taking the signal from the same digital trigger that starts the data acquisition from the analogue inputs. The default data output from the digital pin is a 1-D boolean array, and I want to convert this to something that can make and LED indicator turn on and off. E.g. a real
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