Entendiendo IFC y la iniciativa de buildingSMART

En palabras sencillas, IFC es un formato de código libre y neutral, que permite describir, intercambiar y compartir información de un proyecto, durante todo su ciclo de vida. IFC puede entenderse en los siguientes formatos:

ifc IFC data file using the STEP physical file structure according to ISO10303-21. The *.ifc file shall validate according to the IFC-EXPRESS specification. 

This is the default IFC exchange format.

.ifcXML IFC data file using the XML document structure. It can be generated directly by the sending application, or from an IFC data file using the conversion following ISO10303-28, the XML representation of EXPRESS schemas and data.

Note: an .ifcXML file is normally 300-400% larger then an .ifc file.

.ifcZIP IFC data file using the PKzip 2.04g compression algorithm (compatible with e.g. Windows compressed folders, winzip, zlib, info-zip, etc.). It requires to have a single .ifc or *.ifcXML data file in the main directory of the zip archive.

Note: an .ifcZIP files usually compress an .ifc down by 60-80% and an .ifcXML file by 90-95%.

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