Exporting CAD Views from Simulation

16 September 2024

Export to Step

1. Start eic-shell:

./eic-shell

• Set detector version:

source /opt/detector/epic-25.01.0/bin/thisepic.sh

• Set detector config:

export DETECTOR_CONFIG=epic_craterlake_tracking_only

• Export to STEP

bash exportCAD.sh

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### exportCAD.sh ###

#!/bin/bash

IFS=$' \n\t'

# First get all detectors (except world)

declare -A detectors

while read d ; do

detectors[${d}]='-l 3'

done <<< $(npdet_to_step list $DETECTOR_PATH/${DETECTOR_CONFIG}.xml | sed '/world/d;s/.*(vol: \(.*\)).*/\1/g')

# Then tweak the levels (default is 1)

detectors[HcalBarrel]='-l 1'

detectors[LFHCAL]='-l 2'

detectors[OuterBarrelMPGDSubAssembly]='-l 4'

# Export to one STEP file

npdet_to_step $(for d in ${!detectors[@]} ; do echo part ${detectors[$d]} $d ; done) -o ${DETECTOR_CONFIG} $DETECTOR_PATH/${DETECTOR_CONFIG}.xml 2>&1 | sed '/TGeoMatrix::dtor/d'

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Import Into Onshape

Using Python API

Create API key if you own the project

Save id and secrets in a file “keys.py”

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access = <access id>

secret = <secret key>

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Google Colab

Notebook with example code snippets to manipulate CAD models with REST API

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