cadmpeg-codec-step 0.6.2

Read and write ISO 10303-21 STEP Part 21 files for AP203, AP214, and AP242.
Documentation 
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ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('UD-01 user-defined entity witness'),'2;1');
FILE_NAME('ud01_user_defined_entity','2026-08-16T00:00:00',('cadmpeg'),('cadmpeg'),'cadmpeg-step','','');
FILE_SCHEMA(('AP242_MANAGED_MODEL_BASED_3D_ENGINEERING_MIM_LF'));
ENDSEC;
DATA;
#1=!VENDOR_TARGET('target');
#2=!VENDOR_ENTITY('vendor payload',#1,!VENDOR_TYPE((#1)));
#3=(LENGTH_UNIT() NAMED_UNIT(*) SI_UNIT(.MILLI.,.METRE.));
#4=(NAMED_UNIT(*) PLANE_ANGLE_UNIT() SI_UNIT($,.RADIAN.));
#5=(GEOMETRIC_REPRESENTATION_CONTEXT(3) GLOBAL_UNIT_ASSIGNED_CONTEXT((#3,#4)) REPRESENTATION_CONTEXT('model','3D'));
ENDSEC;
END-ISO-10303-21;