My goal is to make a valid DIN4003 step export of a milling tool.
The tool exists of one compound which holds 2 solid for CUT and NOCUT layers.
I implemented this via the TopoDS_Shape classes.
Both TopoDS_Shape and the step output works fine.
But to make it DIN4003 compliant I need to include some additional coordinate systems per compound.
Something like "Mounting Coordinate System" (MCS).
(The MCS is the reference point of the tool which gets mounted on a holder.)
It should be linked to the compound.
The coordinate system is represented by an AXIS2_PLACEMENT_3 entity
Here are my questions
- How can I implement such a coordinate system and link it to the compound?
- How can I create Layers on which these coordinate systems are placed on?
Here's a excerpt of a resulting step code. I need to create the entity #1370 and #512 (I inserted those manually)
#512 = PRESENTATION_LAYER_ASSIGNMENT('Layer 66','visible',(#1370));
#1423=SHAPE_REPRESENTATION('',(#1422,...,#1370),#1408);
#1422=AXIS2_PLACEMENT_3D('',#1419,#1420,#1421);
#1419=CARTESIAN_POINT('',(0.E0,0.E0,0.E0));
#1420=DIRECTION('',(0.E0,0.E0,1.E0));
#1421=DIRECTION('',(1.E0,0.E0,0.E0));
#1370=AXIS2_PLACEMENT_3D('MCS',#1367,#1368,#1369);
#1367=CARTESIAN_POINT('',(0.E0,-4.2E1,0.E0));
#1368=DIRECTION('',(0.E0,-1.E0,0.E0));
#1369=DIRECTION('',(1.E0,0.E0,0.E0));
#1408=(GEOMETRIC_REPRESENTATION_CONTEXT(3)...
Many thanks for your help.
