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* cython/py_imc_termite.pyx: json loads take care of floats, fix column assignment

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* imc_channel.hpp: fix floating precision for get_channel()
* extend/include advanced usage in examples
This commit is contained in:
Mario Fink 2021-04-26 19:41:56 +02:00
parent 9feadb50c1
commit 8708d2d008
4 changed files with 15 additions and 22 deletions
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9
cython/py_imc_termite.pyx
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@ -3,6 +3,7 @@
from imc_termite cimport imc_termite
import json as jn
import decimal
# import numpy as np
cdef class imctermite:
@ -21,7 +22,7 @@ cdef class imctermite:
# get JSON list of channels
def get_channels(self, bool data):
chnlst = self.cpp_imc.get_channels(True,data)
chnlstjn = [jn.loads(chn.decode(errors="ignore")) for chn in chnlst]
chnlstjn = [jn.loads(chn.decode(errors="ignore"),parse_float=decimal.Decimal) for chn in chnlst]
return chnlstjn
# print channels
@ -31,11 +32,11 @@ cdef class imctermite:
# print table including channels
def print_table(self, string outputfile):
chnlst = self.cpp_imc.get_channels(True,True)
chnlstjn = [jn.loads(chn.decode(errors="ignore")) for chn in chnlst]
chnlstjn = [jn.loads(chn.decode(errors="ignore"),parse_float=decimal.Decimal) for chn in chnlst]
with open(outputfile.decode(),'w') as fout:
for chn in chnlstjn:
fout.write(str(chn['yunit']).rjust(20)+str(chn['xunit']).rjust(20)+'\n')
fout.write(str(chn['yname']).rjust(20)+str(chn['xname']).rjust(20)+'\n')
fout.write('#' +str(chn['xname']).rjust(19)+str(chn['yname']).rjust(20)+'\n')
fout.write('#'+str(chn['xunit']).rjust(19)+str(chn['yunit']).rjust(20)+'\n')
for n in range(0,len(chn['ydata'])):
fout.write(str(chn['xdata'][n]).rjust(20)+
str(chn['ydata'][n]).rjust(20)+'\n')

4
lib/imc_channel.hpp
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@ -95,7 +95,7 @@ namespace imc
ss<<"[";
if ( myvec.size() <= limit )
{
for ( dt el: myvec ) ss<<el<<",";
for ( dt el: myvec ) ss<<std::setprecision(10)<<el<<",";
}
else
{
@ -104,7 +104,7 @@ namespace imc
ss<<"...";
for ( unsigned long int i = myvec.size()-heals; i < myvec.size(); i++ )
{
ss<<myvec[i]<<",";
ss<<std::setprecision(10)<<myvec[i]<<",";
}
}
std::string sumstr = ss.str();

2
python/usage.py
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@ -25,4 +25,4 @@ print(len(chnxdata))
imcraw.print_channels(b"./")
# print all channels in single file
# imcraw.print_table(b"./allchannels.csv")
imcraw.print_table(b"./allchannels.csv")

20
python/usage_adv.py
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@ -2,6 +2,7 @@
import imc_termite
import json
import glob
import os
from pathlib import Path
# list files in sample directory
@ -12,29 +13,20 @@ print(rawlist1)
for fl in rawlist1:
print("converting " + str(fl))
print("converting " + str(fl) + " : " + str(os.path.basename(fl)) )
# declare and initialize instance of "imctermite" by passing a raw-file
try :
imcraw = imc_termite.imctermite(fl.encode())
except RuntimeError as e :
print("failed to load/parse raw-file: " + str(e))
raise Exception("failed to load/parse raw-file: " + str(e))
# obtain list of channels as list of dictionaries (without data)
channels = imcraw.get_channels(False)
print(json.dumps(channels,indent=4, sort_keys=False))
# # obtain data of first channel (with data)
# channelsdata = imcraw.get_channels(True)
# if len(channelsdata) > 0 :
# chnydata = channelsdata[0]['ydata']
# chnxdata = channelsdata[0]['xdata']
#
# print(len(chnydata))
# print(len(chnxdata))
#
# # print the channels into a specific directory
# imcraw.print_channels(b"./")
# print the channels into a specific directory
imcraw.print_channels(b"./")
# print all channels in single file
# imcraw.print_table(b"./allchannels.csv")
imcraw.print_table(("./"+str(os.path.basename(fl).split('.')[0])+"_allchannels.csv").encode())