Passing list of values to an ObjectARX function using Lisp returns error

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One response to “Passing list of values to an ObjectARX function using Lisp returns error”

1. 

   James Maeding

   September 4, 2012

   those workarounds sound easy, but are actually a major problem. How do you tell on the arx/.net end what was an integer, and what was a real? It seems like a trivial matter, but not when you start passing nested lists. You then have to have some function convert all the sublists, then unconvert on the arx/.net end. But the information is degraded on the arx/.net end because the fact that a number was an integer or real matters sometimes. I have routines that return a value (real) or error flag as an integer. You start thinking through how this could affect things, and I switched over to serializing my lists, then sending as string, then deserialize on .net end and serialize to send back to lisp. No more issues to think about. Its a shame autodesk does not do something to eliminate the reinterpreting of integers as dxf codes to eliminate the workarounds.

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