How do I save the virtual channel list of a task to a tab-delimited text file
I have created my data acquisition application which will save the analog inputs of the channels into columns of a text file. Now I would like to save the names of the virtual channels in the header of the file so that couple months down the road I will have no problem of knowing which column is which. How do I do it?
The way I set my application up is that the task is set up in the Measurement and Automation Explorer. In the LabVIEW program, there is an control I can pick the task I want to use, and the rest of the program will pull the necessary information based on the task chosen.
Thanks in advance.
Hi
You can use a Task node located in Measurement I/O -> NiDAQmx -> Task config-->> Task node to get the devive name of the virtual channel. You can a for loop to get each individual device name and build the array of device name and analog input into one array and then write this to a text file.
Regards,
Nitin
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gMxiInfo->bufferPreview = NULL;
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gFormatRecord->data = (void*)new byte[bufferSize];
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((float*)gFormatRecord->data)[ i * 4 ] =
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((float*)gFormatRecord->data)[ i * 4 + 3 ] = 1.0;
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gFormatRecord->layerName = new uint16[64];
gFormatRecord->layerName[0] = 'B';
gFormatRecord->layerName[1] = 'a';
gFormatRecord->layerName[2] = 'c';
gFormatRecord->layerName[3] = 'k';
gFormatRecord->layerName[4] = 'g';
gFormatRecord->layerName[5] = 'r';
gFormatRecord->layerName[6] = 'o';
gFormatRecord->layerName[7] = 'u';
gFormatRecord->layerName[8] = 'n';
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gFormatRecord->layerName[10] = '\0';
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dword food;
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res = cMax->getExtraBuffer(
(char*)gMxiInfo->filename,
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((float*)gFormatRecord->data)[ i * 4 + 1 ] = ((float*)lightBuffer)[ i * 3 + 1 ];
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((float*)gFormatRecord->data)[ i * 4 + 3 ] = ((float*)alphaBuffer)[ i * 3 ];
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// Update the progress bar.
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if( gFormatRecord->data != NULL ){
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gFormatRecord->data = NULL;
if( lightName != NULL ){
delete[] lightName;
lightName = NULL;
static void DoReadLayerFinish (void)
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And that's the image that I obtain loading a 8 layer image:
The layers have transparency (when I set "transparencyPlane" to -1, or 0, or 1, or 2, or 3, or 4....., I got the same result!). The blending mode is still "normal". I had set it to "linear dodge" The "isVisible" param works OK.
Alpha 1 is still black.
Is possible that I need to set something in the .r file? I had to add "FormatLayerSupport { doesSupportFormatLayers }," to manage layers, for instance.
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