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stl_gdml.py
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"""
Author : Andrii Tykhonov ([email protected])
Description : A light-weight tool to convert CAD drawings
(.stl) into geant4 compatible format (.gdml)
"""
import ast
import sys
#import numpy as np
from bisect import bisect
import __main__
if int(sys.version_info.major)>=3:
xrange = range
EMAIL = "[email protected]"
ERROR_CONTACT = "\nPlease contact %s for more information"%EMAIL
HEADER = '<?xml version="1.0" encoding="UTF-8" standalone="no" ?>\n'
SCHEMA = '<gdml xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://service-spi.web.cern.ch/service-spi/app/releases/GDML/schema/gdml.xsd">\n'
FOOTER = '</gdml>'
AUNIT = 'deg'
LUNIT = 'mm'
MATERIALS_INFO = '''
#@
#@ So far, following complex materials are implemented:
#@ - Vacuum
#@ - Mechanic tructures
#@ - Aluminum
#@ - Honeycomb (Aluminum)
#@ - CarbonFibre
#@ - Adhesives
#@ - DC3140 (Glue, Dow Corning)
#@ - PCB
#@ - FR4
#@ - Copper
#@ - Kapton
#@ - Gold
#@ - Nickel
#@ - Titanium
#@ - Silver
#@ - Palladium
#@ - Tin
#@ - Platinum
#@ - Detector materials:
#@ - Silicon
#@ - CdTe
#@ - Tungsten
#@ - PMT
#@ - BGO
#@ - BC254 (neutron detector)
#@ - CdWO4 (cadmium tungstanate)
#@ - Others:
#@ - Glass
#@ - Lead
#@ - Q235 (Steel)
#@ - AL5052-H32 (Aluminium alloy)
#@ - Brass
#@ - FibrousGlass
#@ - PDMS: Polydimethylsiloxane (Silicon Rubber)
#@ - EpoxyResin
#@ - AlNO
#@ - SAC305
#@
#@ Please contact the author to implement more materials,
#@ or (and) feel free to implement them yourself
#@
'''
MATERIALS_LIST = [
{"name" : "Vacuum", "group" : "Other"},
{"name" : "Aluminum", "group" : "Mechanic tructures"},
{"name" : "Honeycomb", "group" : "Mechanic tructures"},
{"name" : "CarbonFibre", "group" : "Mechanic tructures"},
{"name" : "DC3140", "group" : "Adhesives"},
{"name" : "FR4", "group" : "PCB"},
{"name" : "Copper", "group" : "PCB"},
{"name" : "Gold", "group" : "PCB"},
{"name" : "Nickel", "group" : "PCB"},
{"name" : "Titanium", "group" : "PCB"},
{"name" : "Silver", "group" : "PCB"},
{"name" : "Palladium", "group" : "PCB"},
{"name" : "Tin", "group" : "PCB"},
{"name" : "Platinum", "group" : "PCB"},
{"name" : "Silicon", "group" : "Detector Elements"},
{"name" : "CdTe", "group" : "Detector Elements"},
{"name" : "Tungsten", "group" : "Detector Elements"},
{"name" : "PMT", "group" : "Detector Elements"},
{"name" : "BGO", "group" : "Detector Elements"},
{"name" : "BC254", "group" : "Detector Elements"},
{"name" : "CdWO4", "group" : "Detector Elements"},
{"name" : "Glass", "group" : "Other"},
{"name" : "FibrousGlass", "group" : "Other"},
{"name" : "PDMS", "group" : "Other"},
{"name" : "EpoxyResin", "group" : "Other"},
{"name" : "AlNO", "group" : "Other"},
{"name" : "SAC305", "group" : "Other"},
{"name" : "Lead", "group" : "Other"},
{"name" : "Q235", "group" : "Other"},
{"name" : "AL5052-H32", "group" : "Other"},
{"name" : "Brass", "group" : "Other"},
]
MATERIALS = '''
<materials>
<!-- -->
<!-- elements -->
<!-- -->
<!-- http://www-cdf.fnal.gov/~kirby/lbne_geo_tests/lbne_10kT_Materials.gdml -->
<element name="videRef" formula="VACUUM" Z="1"> <atom value="1."/> </element>
<element name="hydrogen" formula="H" Z="1"> <atom value="1.0079"/> </element>
<element name="carbon" formula="C" Z="6"> <atom value="12.0107"/> </element>
<element name="nitrogen" formula="N" Z="7"> <atom value="14.0067"/> </element>
<element name="oxygen" formula="O" Z="8"> <atom value="15.999"/> </element>
<element name="sodium" formula="Na" Z="11"> <atom value="22.99"/> </element>
<element name="magnesium" formula="Mg" Z="12"> <atom value="24.305"/> </element>
<element name="aluminum" formula="Al" Z="13"> <atom value="26.9815"/> </element>
<element name="silicon" formula="Si" Z="14"> <atom value="28.0855"/> </element>
<element name="phosphorus" formula="P" Z="15"> <atom value="30.973"/> </element>
<element name="sulphur" formula="S" Z="16"> <atom value="32.065"/> </element>
<element name="argon" formula="Ar" Z="18"> <atom value="39.9480"/> </element>
<element name="potassium" formula="K" Z="19"> <atom value="39.0983"/> </element>
<element name="calcium" formula="Ca" Z="20"> <atom value="40.078"/> </element>
<element name="titanium" formula="Ti" Z="22"> <atom value="47.867"/> </element>
<element name="chromium" formula="Cr" Z="24"> <atom value="51.9961"/> </element>
<element name="manganese" formula="Mn" Z="25"> <atom value="54.9380"/> </element>
<element name="iron" formula="Fe" Z="26"> <atom value="55.8450"/> </element>
<element name="nickel" formula="Ni" Z="28"> <atom value="58.6934"/> </element>
<element name="copper" formula="Cu" Z="29"> <atom value="63.55"/> </element>
<element name="germanium" formula="Ge" Z="32"> <atom value="72.63"/> </element>
<element name="bromine" formula="Br" Z="35"> <atom value="79.904"/> </element>
<element name="palladium" formula="Pd" Z="46"> <atom value="106.42"/> </element>
<element name="tin" formula="Sn" Z="50"> <atom value="118.71"/> </element>
<element name="platinum" formula="Pt" Z="78"> <atom value="195.084"/> </element>
<element name="gold" formula="Au" Z="79"> <atom value="196.97"/> </element>
<element name="tungsten" formula="W" Z="74"> <atom value="183.84"/> </element>
<element name="bismuth" formula="Bi" Z="83"> <atom value="208.980"/> </element>
<!-- -->
<!-- composite elements -->
<!-- -->
<isotope name="B10" N="5" Z="5"> <atom unit="g/mole" value="10.0129369"/> </isotope>
<isotope name="B11" N="6" Z="5"> <atom unit="g/mole" value="11.0093054"/> </isotope>
<element name="B">
<fraction n="0.199" ref="B10"/>
<fraction n="0.801" ref="B11"/>
</element>
<isotope name="Zn64" N="34" Z="30"> <atom unit="g/mole" value="63.9291422"/> </isotope>
<isotope name="Zn66" N="36" Z="30"> <atom unit="g/mole" value="65.9260334"/> </isotope>
<isotope name="Zn67" N="37" Z="30"> <atom unit="g/mole" value="66.9271273"/> </isotope>
<isotope name="Zn68" N="38" Z="30"> <atom unit="g/mole" value="67.9248442"/> </isotope>
<isotope name="Zn70" N="40" Z="30"> <atom unit="g/mole" value="69.9253193"/> </isotope>
<element name="zink">
<!-- see: https://en.wikipedia.org/wiki/Isotopes_of_zinc -->
<fraction n="0.492" ref="Zn64"/>
<fraction n="0.277" ref="Zn66"/>
<fraction n="0.040" ref="Zn67"/>
<fraction n="0.185" ref="Zn68"/>
<fraction n="0.006" ref="Zn70"/>
</element>
<isotope name="Ag107" N="60" Z="47"> <atom value="106.905092"/> </isotope>
<isotope name="Ag109" N="62" Z="47"> <atom value="108.904756"/> </isotope>
<element name="silver">
<!-- https://www.webelements.com/silver/isotopes.html -->
<fraction n="0.51839" ref="Ag107"/>
<fraction n="0.48161" ref="Ag109"/>
</element>
<isotope name="Sb121" N="70" Z="51"> <atom value="120.9038157"/> </isotope>
<isotope name="Sb122" N="71" Z="51"> <atom value="121.9051737"/> </isotope>
<element name="antimony">
<!-- https://en.wikipedia.org/wiki/Isotopes_of_antimony -->
<fraction n="0.572" ref="Sb121"/>
<fraction n="0.428" ref="Sb122"/>
</element>
<isotope name="Cd106Cd" N="58" Z="48"> <atom unit="g/mole" value="105.906461"/> </isotope>
<isotope name="Cd108Cd" N="60" Z="48"> <atom unit="g/mole" value="107.904176"/> </isotope>
<isotope name="Cd110Cd" N="62" Z="48"> <atom unit="g/mole" value="109.903005"/> </isotope>
<isotope name="Cd111Cd" N="63" Z="48"> <atom unit="g/mole" value="110.904182"/> </isotope>
<isotope name="Cd112Cd" N="64" Z="48"> <atom unit="g/mole" value="111.902757"/> </isotope>
<isotope name="Cd113Cd" N="65" Z="48"> <atom unit="g/mole" value="112.904400"/> </isotope>
<isotope name="Cd114Cd" N="66" Z="48"> <atom unit="g/mole" value="113.903357"/> </isotope>
<isotope name="Cd116Cd" N="68" Z="48"> <atom unit="g/mole" value="115.904755"/> </isotope>
<element name="cadmium">
<!-- isotopes taken in the natural abundance -->
<!-- taken from https://www.webelements.com/cadmium/isotopes.html -->
<fraction ref="Cd106Cd" n="0.0125"/>
<fraction ref="Cd108Cd" n="0.0089"/>
<fraction ref="Cd110Cd" n="0.1249"/>
<fraction ref="Cd111Cd" n="0.1280"/>
<fraction ref="Cd112Cd" n="0.2413"/>
<fraction ref="Cd113Cd" n="0.1222"/>
<fraction ref="Cd114Cd" n="0.2873"/>
<fraction ref="Cd116Cd" n="0.0749"/>
</element>
<isotope name="Te120Te" N="68" Z="52"> <atom unit="g/mole" value="119.904048"/> </isotope>
<isotope name="Te122Te" N="70" Z="52"> <atom unit="g/mole" value="121.903050"/> </isotope>
<isotope name="Te123Te" N="71" Z="52"> <atom unit="g/mole" value="122.9042710"/> </isotope>
<isotope name="Te124Te" N="72" Z="52"> <atom unit="g/mole" value="123.9028180"/> </isotope>
<isotope name="Te125Te" N="73" Z="52"> <atom unit="g/mole" value="124.9044285"/> </isotope>
<isotope name="Te126Te" N="74" Z="52"> <atom unit="g/mole" value="125.9033095"/> </isotope>
<isotope name="Te128Te" N="76" Z="52"> <atom unit="g/mole" value="127.904463"/> </isotope>
<isotope name="Te130Te" N="78" Z="52"> <atom unit="g/mole" value="129.906229"/> </isotope>
<element name="tellurium">
<!-- see https://www.webelements.com/tellurium/isotopes.html -->
<fraction ref="Te120Te" n="0.0009"/>
<fraction ref="Te122Te" n="0.0255"/>
<fraction ref="Te123Te" n="0.0089"/>
<fraction ref="Te124Te" n="0.0474"/>
<fraction ref="Te125Te" n="0.0707"/>
<fraction ref="Te126Te" n="0.1884"/>
<fraction ref="Te128Te" n="0.3174"/>
<fraction ref="Te130Te" n="0.3408"/>
</element>
<isotope name="Pb208" N="126" Z="82"> <atom unit="g/mole" value="207.9766521"/> </isotope>
<isotope name="Pb207" N="125" Z="82"> <atom unit="g/mole" value="206.9758969"/> </isotope>
<isotope name="Pb206" N="124" Z="82"> <atom unit="g/mole" value="205.9744653"/> </isotope>
<isotope name="Pb204" N="122" Z="82"> <atom unit="g/mole" value="203.9730430"/> </isotope>
<element name="lead">
<!-- see https://en.wikipedia.org/wiki/Isotopes_of_lead -->
<fraction ref="Pb208" n="0.524"/>
<fraction ref="Pb207" n="0.221"/>
<fraction ref="Pb206" n="0.241"/>
<fraction ref="Pb204" n="0.014"/>
</element>
<!-- -->
<!-- vacuum -->
<!-- -->
<material formula=" " name="Vacuum">
<D value="1.e-25" unit="g/cm3" />
<fraction n="1.0" ref="videRef" />
</material>
<!-- -->
<!-- materials -->
<!-- -->
<!-- FR4 submaterials -->
<material name="EpoxyResin" formula="C38H40O6Br4">
<D value="1.1250" unit="g/cm3"/>
<composite n="38" ref="carbon"/>
<composite n="40" ref="hydrogen"/>
<composite n="6" ref="oxygen"/>
<composite n="4" ref="bromine"/>
</material>
<material name="SiO2" formula="SiO2">
<D value="2.2" unit="g/cm3"/>
<composite n="1" ref="silicon"/>
<composite n="2" ref="oxygen"/>
</material>
<material name="Al2O3" formula="Al2O3">
<D value="3.97" unit="g/cm3"/>
<composite n="2" ref="aluminum"/>
<composite n="3" ref="oxygen"/>
</material>
<material name="Fe2O3" formula="Fe2O3">
<D value="5.24" unit="g/cm3"/>
<composite n="2" ref="iron"/>
<composite n="3" ref="oxygen"/>
</material>
<material name="CaO" formula="CaO">
<D value="3.35" unit="g/cm3"/>
<composite n="1" ref="calcium"/>
<composite n="1" ref="oxygen"/>
</material>
<material name="MgO" formula="MgO">
<D value="3.58" unit="g/cm3"/>
<composite n="1" ref="magnesium"/>
<composite n="1" ref="oxygen"/>
</material>
<material name="Na2O" formula="Na2O">
<D value="2.27" unit="g/cm3"/>
<composite n="2" ref="sodium"/>
<composite n="1" ref="oxygen"/>
</material>
<material name="TiO2" formula="TiO2">
<D value="4.23" unit="g/cm3"/>
<composite n="1" ref="titanium"/>
<composite n="2" ref="oxygen"/>
</material>
<material name="FibrousGlass">
<D value="2.74351" unit="g/cm3"/>
<fraction n="0.600" ref="SiO2"/>
<fraction n="0.118" ref="Al2O3"/>
<fraction n="0.001" ref="Fe2O3"/>
<fraction n="0.224" ref="CaO"/>
<fraction n="0.034" ref="MgO"/>
<fraction n="0.010" ref="Na2O"/>
<fraction n="0.013" ref="TiO2"/>
</material>
<material name="FR4">
<D value="1.98281" unit="g/cm3"/>
<fraction n="0.47" ref="EpoxyResin"/>
<fraction n="0.53" ref="FibrousGlass"/>
</material>
<!-- Glue (DC3140, Dow Corning) sub materials -->
<material name="dimethylsiloxane_hydroxy_terminated" formula="HOSiCH3CH3OH">
<D value="0.98" unit="g/cm3"/>
<composite n="2" ref="oxygen"/>
<composite n="8" ref="hydrogen"/>
<composite n="2" ref="carbon"/>
<composite n="1" ref="silicon"/>
</material>
<material name="trimethylated_silica" formula="O2Si">
<D value="2.6" unit="g/cm3"/>
<composite n="2" ref="oxygen"/>
<composite n="1" ref="silicon"/>
</material>
<material name="methyltrimethoxysilane" formula="C4H12O3Si">
<D value="0.955" unit="g/cm3"/>
<composite n="3" ref="oxygen"/>
<composite n="12" ref="hydrogen"/>
<composite n="4" ref="carbon"/>
<composite n="1" ref="silicon"/>
</material>
<material name="DC3140">
<D value="1.2" unit="g/cm3"/>
<fraction n="0.60" ref="dimethylsiloxane_hydroxy_terminated"/>
<fraction n="0.30" ref="trimethylated_silica"/>
<fraction n="0.10" ref="methyltrimethoxysilane"/>
</material>
<!-- Conductive materials for PCB -->
<material name="Copper" state="solid">
<D value="8.960" unit="g/cm3"/>
<fraction n="1." ref="copper"/>
</material>
<material name="Gold" state="solid">
<D value="19.32" unit="g/cm3"/>
<fraction n="1." ref="gold"/>
</material>
<material name="Nickel" state="solid">
<D value="8.96" unit="g/cm3"/>
<fraction n="1." ref="nickel"/>
</material>
<material name="Titanium" state="solid">
<!--http://www.rsc.org/periodic-table/element/22/titanium -->
<D value="4.506" unit="g/cm3"/>
<fraction n="1." ref="titanium"/>
</material>
<material name="Silver" state="solid">
<!-- see https://en.wikipedia.org/wiki/Silver -->
<D value="10.49" unit="g/cm3"/>
<fraction n="1." ref="silver"/>
</material>
<material name="Cadmium" state="solid">
<!-- see https://www.lenntech.com/periodic/elements/cd.htm -->
<D value="8.7" unit="g/cm3"/>
<fraction n="1." ref="cadmium"/>
</material>
<material name="Palladium" state="solid">
<!-- see http://www.rsc.org/periodic-table/element/46/palladium -->
<D value="12.0" unit="g/cm3"/>
<fraction n="1." ref="palladium"/>
</material>
<material name="Tin" state="solid">
<!-- see http://www.rsc.org/periodic-table/element/50/tin -->
<D value="7.287" unit="g/cm3"/>
<fraction n="1." ref="tin"/>
</material>
<material name="Tellurium" state="solid">
<!-- see http://www.rsc.org/periodic-table/element/52/tellurium -->
<D value="6.232" unit="g/cm3"/>
<fraction n="1." ref="tellurium"/>
</material>
<material name="Lead" state="solid">
<!-- see https://en.wikipedia.org/wiki/Lead -->
<D value="11.34" unit="g/cm3"/>
<fraction n="1." ref="lead"/>
</material>
<material name="Q235" state="solid"> <!-- STEEL -->
<!-- density, see: https://www.chinesesteelgrades.com/q235-steel/ -->
<D value="7.85" unit="g/cm3"/>
<fraction n="0.980" ref="iron"/>
<fraction n="0.014" ref="manganese"/>
<fraction n="0.004" ref="silicon"/>
<fraction n="0.002" ref="carbon"/>
</material>
<material name="AL5052-H32" state="solid"> <!-- ALUMINUIM ALLOY -->
<D value="2.68" unit="g/cm3"/>
<fraction n="0.969" ref="aluminum"/>
<fraction n="0.025" ref="magnesium"/>
<fraction n="0.003" ref="iron"/>
<fraction n="0.002" ref="chromium"/>
<fraction n="0.001" ref="silicon"/>
</material>
<material name="Brass" state="solid"> <!-- brass: http://www.aatongdiao.com/en/new/new-73-571.html -->
<D value="8.73" unit="g/cm3"/>
<fraction n="0.61" ref="copper"/>
<fraction n="0.39" ref="zink"/>
</material>
<material name="Platinum" state="solid">
<!-- see http://www.rsc.org/periodic-table/element/78/platinum -->
<D value="21.5" unit="g/cm3"/>
<fraction n="1." ref="platinum"/>
</material>
<!-- Passivation -->
<material name="AlNO" state="solid" formula="AlNO">
<!-- Aluminum oxynitride -->
<!-- see https://en.wikipedia.org/wiki/Aluminium_oxynitride -->
<!-- see https://webbook.nist.gov/cgi/formula?ID=B1000046&Mask=800 -->
<D value="3.6935" unit="g/cm3"/>
<composite n="1" ref="aluminum"/>
<composite n="1" ref="nitrogen"/>
<composite n="1" ref="oxygen"/>
</material>
<!-- Bonding -->
<material name="SAC305" state="solid">
<!-- see https://www.aimsolder.com/sites/default/files/alloy_sac305_tds.pdf -->
<!-- see https://cdn.sos.sk/productdata/73/d6/578230e0/sac305-sn96-5ag3cu0-5-0-7mm-1kg.pdf -->
<D value="7.37" unit="g/cm3"/>
<fraction n="0.965" ref="Tin"/>
<fraction n="0.030" ref="Silver"/>
<fraction n="0.005" ref="Copper"/>
</material>
<!-- Kapton -->
<material name="Kapton" state="solid">
<D value="1.42" unit="g/cm3"/>
<fraction n="0.0273" ref="hydrogen"/>
<fraction n="0.7213" ref="carbon"/>
<fraction n="0.0765" ref="nitrogen"/>
<fraction n="0.1749" ref="oxygen"/>
</material>
<!-- Aluminum, Hineycomb, Carbon fibre, etc. (simple materials) -->
<material formula="Al" name="Aluminum" state="solid">
<D value="2.700" unit="g/cm3"/>
<fraction n="1." ref="aluminum"/>
</material>
<material name="CarbonFibre" state="solid">
<D unit="g/cm3" value="1.55"/>
<fraction n="0.85" ref="carbon"/>
<fraction n="0.03" ref="hydrogen"/>
<fraction n="0.04" ref="nitrogen"/>
<fraction n="0.08" ref="oxygen"/>
</material>
<material name="Honeycomb" state="solid">
<D value="0.030" unit="g/cm3"/>
<fraction n="1." ref="aluminum"/>
</material>
<!-- Silicon -->
<material name="Silicon" state="solid">
<D value="2.333" unit="g/cm3"/>
<fraction n="1." ref="silicon"/>
</material>
<!-- Tungsten -->
<material name="Tungsten" state="solid">
<D value="19.3" unit="g/cm3"/>
<fraction n="1." ref="tungsten"/>
</material>
<!-- Cadmium Telluride -->
<material name="CdTe" state="solid">
<!--https://www.azom.com/article.aspx?ArticleID=8408-->
<D value="5.85" unit="g/cm3"/>
<composite n="1" ref="cadmium"/>
<composite n="1" ref="tellurium"/>
</material>
<!-- PMT -->
<!--sylgard 170, Silicon Rubber Polydimethylsiloxane(PDMS)-->
<material name="PDMS" formula="SiOC2H6" >
<D value="1.34" unit="g/cm3" />
<composite n="1" ref="silicon" />
<composite n="1" ref="oxygen" />
<composite n="2" ref="carbon" />
<composite n="6" ref="hydrogen" />
</material>
<material name="Glass" formula="SiO2" >
<D value="2.5" unit="g/cm3" />
<composite n="1" ref="silicon" />
<composite n="2" ref="oxygen" />
</material>
<material name="PMT" state="solid">
<D value="2.524" unit="g/cm3"/>
<fraction n="0.7" ref="aluminum"/>
<fraction n="0.2" ref="Glass"/>
<fraction n="0.1" ref="PDMS"/>
</material>
<!-- BGO -->
<material name="BGO" formula="Bi4Ge3O12" >
<D value="7.13" unit="g/cm3" />
<composite n="4" ref="bismuth" />
<composite n="3" ref="germanium" />
<composite n="12" ref="oxygen" />
</material>
<!-- BC254 (neutron detector) -->
<material name="BC254" state="solid">
<MEE unit="eV" value="173"/>
<D unit="g/cm3" value="1.026"/>
<fraction n="0.2492" ref="carbon"/>
<fraction n="0.7475" ref="hydrogen"/>
<fraction n="0.0033" ref="B"/>
</material>
<!-- CdWO4 -->
<!-- see https://www.tandfonline.com/doi/pdf/10.1080/00223131.2008.10875862 -->
<!-- see https://www.convertunits.com/molarmass/CdWO4 -->
<material name="CdWO4" state="solid">
<D unit="g/cm3" value="7.9"/>
<fraction n="0.510" ref="tungsten"/>
<fraction n="0.312" ref="cadmium"/>
<fraction n="0.178" ref="oxygen"/>
</material>
</materials>
'''
WORLD = '''
<setup name="Default" version="1.0">
<world ref="%s"/>
</setup>
'''
STRUCTURE = '''
<structure>
<volume name="%s">
<materialref ref="%s"/>
<solidref ref="%s"/>%s
</volume>
</structure>
'''
MODULE_NAME = __main__.__file__.split("/")[-1].split("\\")[-1]
HELP_MESSAGE = '''
Usage:
python %s out_name input_file_1.stl input_file_2.stl input_file_N.stl"
or
python %s out_name path_to_stl_file/blah_blah_*.stl
Materials:
Material are encoded in the stl file name
For instance, my_geometry_part_Aluminum.stl - this part will be parsed as made of aluminum
See %s --materials to display list of available materials
'''%(MODULE_NAME,MODULE_NAME,MODULE_NAME)
def __is_help__():
ishelp = False
for arg in sys.argv:
if "-h" in arg.lower() and arg[0]=="-": ishelp = True
if "help" in arg.lower(): ishelp = True
if ishelp: print (HELP_MESSAGE)
def __print_error__(text):
print (text)
def __print__(text):
print (text)
def __print_progress_bar__(text,percentage):
sys.stdout.write("\r%s %5.1f%%"%(text,percentage))
sys.stdout.flush()
if percentage==100.: print()
def __print_and_terminate__(text):
__print_error__(text + " ==> terminating the program!")
__print__(ERROR_CONTACT)
raise SystemExit
def __str_to_float__(text):
try:
return ast.literal_eval(text)
except Exception as e:
__print_and_terminate__("String to float conversion failed due to: "+str(e))
def __float_to_str__(val):
return '{}'.format(val)
def __get_three_values__(line, delimiter):
vals = line.split(delimiter)[-1]
vals = vals.split()
if len(vals)!=3:
#print
#print delimiter
#print vals
__print_and_terminate__("Input format inconsistency: more than 3 values per line: "+line)
return [__str_to_float__(val) for val in vals]
#def __get_orientation__(norm, vertex1, vertex2, vertex3):
# v1 = np.array(vertex1)
# v2 = np.array(vertex2)
# v3 = np.array(vertex3)
# vec1 = v2 - v1
# vec2 = v3 - v2
# norm1 = np.cross(vec1,vec2)
# return 1 if np.inner(norm,norm1)>0 else -1
def __vectr_subtr__(vector1, vector2):
return [x[0]-x[1] for x in zip(vector1,vector2)]
def __vector_cross__(vector1, vector2):
return [
vector1[1]*vector2[2] - vector1[2]*vector2[1],
- vector1[0]*vector2[2] + vector1[2]*vector2[0],
vector1[0]*vector2[1] - vector1[1]*vector2[0],
]
def __vector_inner__(vector1,vector2):
return sum([x[0]*x[1] for x in zip(vector1,vector2)])
def __get_orientation__(norm, v1, v2, v3):
vec1 = __vectr_subtr__(v2, v1)
vec2 = __vectr_subtr__(v3, v2)
norm1 = __vector_cross__(vec1,vec2)
return 1 if __vector_inner__(norm,norm1)>0 else -1
def __get_inputname_base__(fname):
return fname.split("/")[-1].split(".stl")[0]
def get_triangles(fname):
f=open(fname,"r")
solid = None
lines = f.readlines()
nlines = len(lines)
for l in xrange(nlines):
__print_progress_bar__("Processing file %s: "%fname,100.*(l+1)/nlines)
line = lines[l].lower()
# start facet
if "facet " in line:
solid = {}
# Get normal to triangle
if "normal" in line:
if "normal" in solid.keys():
__print_and_terminate__("Input format inconsistency: duplicate normal for triangle")
solid["normal"] = __get_three_values__(line, "normal")
continue
# Get vertices
if "vertex" in line:
if "vertex" not in solid:
solid["vertex"] = []
if len(solid["vertex"])>=3:
__print_and_terminate__("Input format inconsistency: more than 3 vertices per triangle")
solid["vertex"].append(__get_three_values__(line,"vertex"))
continue
# Finalize the triangle
if "endfacet" in line:
yield solid
def guess_material(fname):
target = fname.lower()
materials = [m["name"] for m in MATERIALS_LIST if m["name"].lower() in target]
if len(materials)>1:
__print__(" Ambigous materials for file: %s:"%fname)
[__print__(" %s"%x) for x in materials]
__print__(" ... please specify name properly - assigning Vacuum to this volume!")
return MATERIALS_LIST[0]["name"]
elif not materials:
__print__(" Could not parse material for the file %s: - asigning Vacuum to this volume!"%fname)
return MATERIALS_LIST[0]["name"]
__print__(" File %s - material parsed: %s"%(fname,materials[0]))
return materials[0]
def stl_to_gdml(fname):
outname = __get_inputname_base__(fname)
outsolidname = outname+"-SOL"
# sort vertices
triangles = []
sortedvertexes = []
for triangle in get_triangles(fname):
triangles.append(triangle)
for vertex in triangle["vertex"]:
x = __float_to_str__(vertex[0])
y = __float_to_str__(vertex[1])
z = __float_to_str__(vertex[2])
thekey = x+y+z
sortedvertexes.append(thekey)
#__print__("Soring vertices - may take some time...")
sortedvertexes = sorted(sortedvertexes)
#__print__("... done sorting")
# remove duplicates from verticves
previous = None
sortednoduplicates = []
vertexidnoduplicates = []
for tmpvertex in sortedvertexes:
if tmpvertex == previous: continue
sortednoduplicates.append(tmpvertex)
vertexidnoduplicates.append(None)
previous = tmpvertex
# create gdml vertices
# create gdml solids
vertices = '\n <define>\n'
solids = '\n <solids>\n'
solids += ' <tessellated aunit="%s" lunit="%s" name="%s">\n'%(AUNIT,LUNIT,outsolidname)
vertexid = 0
for i in xrange(len(triangles)):
triangle = triangles[i]
__print_progress_bar__("generating gdml for %s: "%fname,100.*(i+1)/len(triangles))
if len(triangle["vertex"])!=3:
__print_and_terminate__("Illegal number of vertices per triangle: "+str(triangle["vertex"]))
ids = []
for vertex in triangle["vertex"]:
x = __float_to_str__(vertex[0])
y = __float_to_str__(vertex[1])
z = __float_to_str__(vertex[2])
thekey = x+y+z
theitem = bisect(sortednoduplicates, thekey)-1
assert(theitem>=0)
# add vertex to gdml
if vertexidnoduplicates[theitem] is None:
vertices+=' <position name="%s_v%d" unit="%s" x="%s" y="%s" z="%s"/>\n'% (outname,
vertexid,
LUNIT,
x,
y,
z
)
vertexidnoduplicates[theitem] = vertexid
vertexid+=1
# add vertex to facet
ids.append(vertexidnoduplicates[theitem])
# create facet
orientation = __get_orientation__(triangle["normal"], *triangle["vertex"])
idsforsolid = ids if orientation>0 else [ids[2],ids[1],ids[0]]
solids+= ' <triangular vertex1="%s_v%d" vertex2="%s_v%d" vertex3="%s_v%d"/>\n'%(outname, idsforsolid[0],
outname, idsforsolid[1],
outname, idsforsolid[2]
)
# finalize
vertices+= ' </define>\n'
solids+= ' </tessellated>\n'
solids+= ' </solids>\n'
# material
material = guess_material(fname) # "Vacuum"
# structure
structure = STRUCTURE%(outname, material, outsolidname,"")
# world
world = WORLD%outname
# create output gdml file
outfilename = outname+".gdml"
fout = open(outfilename,"w")
fout.write(HEADER)
fout.write(SCHEMA)
#fout.write(MATERIALS)
fout.write(vertices)
fout.write(solids)
fout.write(structure)
fout.write(world)
fout.write(FOOTER)
fout.close()
return outfilename
def creat_gdml_bundle(outname, infiles):
# some world constants
WORLD_BOX_SIZE = __float_to_str__(10000.)
SOLIDNMAE = "world_solid"
VOLUMENAME = "world_volume"
# solids
solid = '\n <solids>\n'
solid += ' <box lunit="%s" name="%s" x="%s" y="%s" z="%s" />\n'%(LUNIT,SOLIDNMAE,WORLD_BOX_SIZE,WORLD_BOX_SIZE,WORLD_BOX_SIZE)
solid += ' </solids>\n'
# structure
includes = "\n\n"
for fname in infiles:
gdmlname = stl_to_gdml(fname)
includes += ' <physvol>\n'
includes += ' <file name="%s"/>\n'%gdmlname
#includes += ' <position name="stk_corner_bolts_pos" x="stk_adjust_x_position" y="stk_adjust_y_position" z="stk_adjust_z_position" unit="mm"/>'
#includes += ' <rotationref ref="old_to_new_coordinatesystem_rotation" />'
includes += ' </physvol>\n'
includes += "\n"
structure = STRUCTURE%(VOLUMENAME,"Vacuum", SOLIDNMAE,includes)
# world
world = WORLD%VOLUMENAME
# create top level gdml file
outname = outname+".gdml"
fout = open(outname,"w")
fout.write(HEADER)
fout.write(SCHEMA)
fout.write(MATERIALS)
fout.write(solid)
fout.write(structure)
fout.write(world)
fout.write(FOOTER)
fout.close()
#__is_help__()
#stl_to_gdml(sys.argv[1])
__is_help__()
if "--materials" in sys.argv:
__print__(MATERIALS_INFO)
raise SystemExit
if len(sys.argv)<3:
__print__('Not enough argumnets provided! see "python %s -h" for more details'%MODULE_NAME)
raise SystemExit
matchnames = [item for item in sys.argv[2:] if sys.argv[1].lower().split('.gdml')[0] == item.lower().split('.stl')[0]]
if matchnames:
__print__('[out_name] should not coincide with one of the input .stl file names "python %s -h" for more details'%MODULE_NAME)
__print__('[out_name] = ' + sys.argv[1] + ' mathces with ' + matchnames[0] + ' - please use different name for the [out_name], for example "top.gdml"')
raise SystemExit
if ".stl" in sys.argv[1]:
__print__('Please provide output file name! see "python %s -h" for more details'%MODULE_NAME)
raise SystemExit
creat_gdml_bundle(sys.argv[1].split('.gdml')[0],sys.argv[2:])