How to use scripts to extract binary files with byte offset and reserved bytes into decimal data?The document is divided into three parts:
A: The first eight bytes are the header (two integers of 4+4),
B: This is followed by 240 lines of uniform specifications.
The data structure for each row is as follows:
1. Two bytes are integers.
2. Four bytes are floating point.
3. Four bytes are floating point.
4. Two bytes are integers.
5. The remaining 14 bytes are reserved.
C: The last is the reserved null value.
How to restore this data to decimal data using JSL.
Thanks!
Quality and Process EngineeringRe: How to use scripts to extract binary files with byte offset and reserved bytes into decimal data?
Re: How to use scripts to extract binary files with byte offset and reserved bytes into decimal data?Load the data as a blob.
Use blobPeek(), similar to substr() for strings, but zero based, to pick out the segments.
Use blobToMatrix() to convert the segments to numbers.
blobToMatrix() can make 4- or 8-byte floats, 1-, 2-, 4-, and 8-byte signed or unsigned integers.
blobToMatrix also understands big vs little endian data: the least significant and most significant bits are sometimes swapped around. Most modern computes use little-endian representations.
Re: How to use scripts to extract binary files with byte offset and reserved bytes into decimal data?Thank Craige!
