fprint in labview

[labmaster]

I made a data converting program.

The original data should be written in "fwrite (&arrImageData[iCol][iRow], sizeof (double), 1, pDestinationFile);" in Windows c++.

I got to know there somethings to consider such as Endian problem.

Anyway, Does above fwrite can be realized like this (pic) for an array?

(It's not worked now.)

메시지가 04-27-2009 07:44 PM

에 labmaster에 의해 편집되었음

[RavensFan]

In what way is this not working?  Are you getting an error message?

What are you expecting to get versus what are you actually getting?

[labmaster]

I convert the float numbers to 2 byte integer.

The minimum (-1.293) and maximum (1.688V) are -32768 and +32767 respectively.

The application shows the image rightly, but the Z scale -1.09 and +1.67 for min and max.

In the manual of application said "The data is read as a matrix Number of columns x Number of rows two-bytes data"

Does this mean the application can accept only 2 byte integer? or what else?

[RavensFan]

That's what it sounds like to me. An I16.

What is this application and where is its manual?

[labmaster]

Thank you for the reply. 

The application is used to see an image.

The manual is in http://www.nanotec.es/products/wsxm/file_structure.php.

Or you can see the expression in C++ in http://www.nanotec.es/products/wsxm/file_format_examples.php

I confirmed the header of image was correct.

I would like to know the 2bytes binary format clearly.

메시지가 04-28-2009 12:29 PM

에 labmaster에 의해 편집되었음

[smercurio_fc]

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labmaster wrote:

I would like to know the 2bytes binary format clearly.

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According to the C code it's a 2D array of "double"s, which are 8 bytes each. The LabVIEW DBL is the same. However, according to the C code, it's column, row. In LabVIEW, 2D arrays are row, column. So, try transposing the array. 

Also, there is no need to use 2 loops to write the 2D array. Just wire the 2D array directly to the data input of the Write Binary File function.

[labmaster]

Thank you for the reply.

You and I was right.