Hex to Floating Point converter?

[pchiu]

Hi,

I have a field that contrains a hex-string representing an encoded-float number (sign+exponent+mantissa).
What would be a (nice) way of evaluating it into another field that would contain the actual float value?

Ex: https://gregstoll.com/~gregstoll/floattohex/

Thanks

PS: I can't change the original hex-string.

[woodcock]

Show us the sample data and the field and what the sample data should look like after conversion.

[jeanyvesnolen]

You could use a scripted lookup with a small python script doing conversion

transforms.conf

        [hex_converter]
        external_cmd = hex_converter.py hexstring floatnum
        fields_list = hexstring , floatnum

You can after use it with (if number_hex is your field)

| lookup hex_converter hexstring AS number_hex 

And you can run it automatically if you want see (automatic lookup)