Going back to StrPack, there's syntax for that:
@struct type SomeThings
anInt::Int32
aVectorWithSixElements::Vector{Int32}(6)
aStringOfEightBytes::ASCIIString(8)
end
On Friday, October 2, 2015 at 9:01:29 AM UTC-5, David McInnis wrote:
>
> @Tom : I couldn't figure out how to do arrays or strings of a specific
> number of bytes.
>
>
> On Thursday, October 1, 2015 at 6:41:30 PM UTC-4, Tom Breloff wrote:
>>
>> This is exactly what my packedStruct macro is for... define the type
>> (composed of bitstypes) and the macro will set up helper methods to read
>> raw bytes into the fields. I'm curious if it suits your needs, and what is
>> missing.
>>
>> On Thu, Oct 1, 2015 at 3:39 PM, David McInnis <[email protected]> wrote:
>>
>>> Related follow-on question..
>>>
>>> Is there a nice way to get the data into a type format rather than a
>>> dict ?
>>>
>>> Here's the form I'm using now..
>>> function DNP(myfile::String)
>>>
>>> dnp = { "File" => myfile }
>>> fh = open(myfile, "r")
>>>
>>> dnp["Label"] = bytestring(readbytes(fh, 4))
>>> dnp["Version"] = read(fh, Uint32)
>>> dnp["Revision"] = read(fh, Uint32)
>>> dnp["Date"] = bytestring(readbytes(fh, 28))
>>> dnp["FileFormat"] = read(fh, Uint32)
>>> dnp["FileType"] = bytestring(readbytes(fh,4))
>>> dnp["OriginalFileName"] = bytestring(readbytes(fh,68))
>>> dnp["ReferenceFileName"] = bytestring(readbytes(fh,68))
>>> dnp["RelatedFileNameA"] = bytestring(readbytes(fh,68))
>>> dnp["RelatedFileNameB"] = bytestring(readbytes(fh,68))
>>> dnp["RelatedFileNameC"] = bytestring(readbytes(fh,68))
>>> dnp["Annotate"] = bytestring(readbytes(fh,84))
>>> dnp["InstrumentModel"] = bytestring(readbytes(fh,36))
>>> dnp["InstrumentSerialNumber"] = bytestring(readbytes(fh,36))
>>> dnp["SoftwareVersionNumber"] = bytestring(readbytes(fh,36))
>>> dnp["CrystalMaterial"] = bytestring(readbytes(fh,36))
>>> dnp["LaserWavelengthMicrons"] = read(fh, Float64)
>>> dnp["LaserNullDoubling"] = read(fh, Uint32)
>>> dnp["Padding"] = read(fh, Uint32)
>>> dnp["DispersionConstantXc"] = read(fh, Float64)
>>> dnp["DispersionConstantXm"] = read(fh, Float64)
>>> dnp["DispersionConstantXb"] = read(fh, Float64)
>>> dnp["NumChan"] = read(fh, Uint32)
>>> dnp["InterferogramSize"] = read(fh, Uint32)
>>> dnp["ScanDirection"] = read(fh, Uint32)
>>> dnp["ACQUIREMODE"] = read(fh, Uint32)
>>> dnp["EMISSIWITY"] = read(fh, Uint32)
>>> dnp["APODIZATION"] = read(fh, Uint32)
>>> dnp["ZEROFILL"] = read(fh, Uint32)
>>> dnp["RUNTIMEMATH"] = read(fh, Uint32)
>>> dnp["FFTSize"] = read(fh, Uint32)
>>> dnp["NumberOfCoAdds"] = read(fh, Uint32)
>>> dnp["SingleSided"] = read(fh, Uint32)
>>> dnp["ChanDisplay"] = read(fh, Uint32)
>>> dnp["AmbTemperature"] = read(fh, Float64)
>>> dnp["InstTemperature"] = read(fh, Float64)
>>> dnp["WBBTemperature"] = read(fh, Float64)
>>> dnp["CBBTemperature"] = read(fh, Float64)
>>> dnp["TEMPERATURE_DWR"] = read(fh, Float64)
>>> dnp["EMISSIVITY_DWR"] = read(fh, Float64)
>>> dnp["LaserTemperature"] = read(fh, Float64)
>>> dnp["SpareI"] = read(fh, Uint32,10)
>>> dnp["SpareF"] = read(fh, Float64,10)
>>> dnp["SpareNA"] = bytestring(readbytes(fh,68))
>>> dnp["SpareNB"] = bytestring(readbytes(fh,68))
>>> dnp["SpareNC"] = bytestring(readbytes(fh,68))
>>> dnp["SpareND"] = bytestring(readbytes(fh,68))
>>> dnp["SpareNE"] = bytestring(readbytes(fh,68))
>>> dnp["End"] = bytestring(readbytes(fh,4))
>>>
>>>
>>> dnp["Interferograms"] = read(fh, Int16, dnp["InterferogramSize"],
>>> dnp["NumberOfCoAdds"])
>>> fft_size = dnp["FFTSize"] * dnp["ZEROFILL"] * 512
>>> dnp["Spectrum"] = read(fh, Float32, fft_size)
>>>
>>> close(fh)
>>>
>>> wavelength_range = 10000.0 / dnp["LaserWavelengthMicrons"]
>>> spectral_range = wavelength_range / 2
>>> spectral_binsize = spectral_range / fft_size
>>> x_fft = [0:fft_size-1] * spectral_binsize
>>> m = dnp["DispersionConstantXm"]
>>> b = dnp["DispersionConstantXb"]
>>> c = dnp["DispersionConstantXc"]
>>> x_corrected = x_fft + c + exp10(m * x_fft + b)
>>> dnp["WL_cm"] = x_corrected
>>> dnp["WL_microns"] = 10000.0 ./ x_corrected
>>>
>>>
>>> return dnp
>>> end
>>>
>>> Which works fine, but it leaves me with the data in a form that's ugly
>>> (to me) in calculations: dnp["InterferogramSize"] * dnp["NumberOfCoAdds"]
>>> Instead of: dnp.InterferogramSize * dnp.NumberOfCoAdds
>>>
>>> I can create an appropriate type like:
>>> type DNP
>>> Label
>>> Version
>>> Revision
>>> Date
>>> #### etc etc
>>> end
>>>
>>> ..but I can't figure out a good way to get the data there. Well,
>>> other than keeping my current function, defining the type, and then having
>>> another function to copy the data into the type... ugggggly.
>>>
>>> I read all the docs I could find on types but never saw anything that
>>> hinted at a solution.. maybe a function/type hybrid??
>>> I tried creating the type within the function but didn't get anywhere.
>>> Ideas?
>>>
>>
>>
