Reading a Binary File containing Cluster Data

[megaposiedon]

Hi,

I created a Binary Data file that stores cluster data. It is a cluster of 3 element..

1. Unsigned byte - 8 bit integer

2. Double - 64bit real

3. Double - 64bit real

This cluster of 3 elemetes is actually represented in the form of a waveform graph w.r.t time which I saved as a Binary File...

(For the .dat file click here http://www.mediafire.com/?u4c1y9iho2b5qoe )

Now I want to read this binary file in labview and display it in the form of a graph.

I cannot post the VI for creating the binary file because It requires Control system, Fuzzy toolbox but here are the parameters I used

Byte Order - Little Endian

See the attachment for my try for reading the binary file... Please help me with the reading of the .dat file I linked above

If there is anything I have to tell, let me know

Thanks

[billko]

Seems to me that if you tell it to be a string, it's going to be a string.  😉

Try hooking up the actual cluster as the data type.  (I just made a copy of the indicator and changed it to a control for a quick and dirty test.)

[megaposiedon]

Could you pls ellaborate billko... I followed labview example where the data out is double, I followed similar steps but in my VI its a string...Do I need to do some sort of unflattening etc ?

I'm not sure,if you could elaborate I would be very thankful..

[billko]

Sure thing.  Here's what I did:

Note that the control would probably be better as as a constant.  It was left as a control for clarity.

[megaposiedon]

Thank you billko,

the attachment was in 2012, however I figured out how to work on the data type problem...

Here is another problem...When I display the graph the range is limited to the last 1000 points on the X-Axis, Where as I want the complete data to be read and displayed

(Starting from time (x) = 0 till last point of the x-axis)

Pls send the attachment file in LV2011

Thanks again 🙂

[GerdW]

Hi mega,

either switch autoscaling on - or use a real graph instead of a chart (with a history of 1000 points...)!