0002762: IFC import takes too much times when processing styled items

ID	Project	Category	View Status	Date Submitted	Last Update

0002762	Arch	Bug	public	2016-11-09 00:35	2016-12-29 18:06

Reporter	jpmbk	Assigned To	yorik
Priority	normal	Severity	minor	Reproducibility	always
Status	closed	Resolution	fixed
Product Version	0.16

Summary	0002762: IFC import takes too much times when processing styled items
Description	Processing code for "IfcStyledItem" is something such as : loop on all IfcStyledItem if ..... : loop on all IFCProducts else: loop on all IFCMaterialDefinitionRepresentation This code is way too much polynomial for my ifc model :)
Steps To Reproduce	Try to import a medium sized ifc model : the styleditem processing will block FreeCAD for a long time ....
Additional Information	Partial solution is to split processing in two phases : first create a dictianry mapping IfcStyledItem to colors and then loop over the products. However I'm not sure how to integrate "IFCMaterialDefinitionRepresentation" in ths scheme. Please see my attempt to correct importIFC.py as attachment
Tags	No tags attached.

FreeCAD Information

FreeCAD: master 02492358 2016-12-29 19:05:52 yorik Details Diff	Arch: Faster material handling in IFC import - fixes 0002762	Affected Issues 0002762
	mod - src/Mod/Arch/ArchComponent.py	Diff File
	mod - src/Mod/Arch/importIFC.py	Diff File
	mod - src/Mod/Draft/Draft.py	Diff File

Date Modified	Username	Field	Change
2016-11-09 00:35	jpmbk	New Issue
2016-11-09 00:35	jpmbk	File Added: importIFC.py
2016-12-29 18:06	yorik	Changeset attached	=> FreeCAD Master master 02492358
2016-12-29 18:06	yorik	Assigned To	=> yorik
2016-12-29 18:06	yorik	Status	new => closed
2016-12-29 18:06	yorik	Resolution	open => fixed
2016-12-29 18:06	yorik	Note Added: 0007556

jpmbk 2016-11-09 00:35 reporter	~~importIFC.py~~ (Attachment missing)

yorik 2016-12-29 18:06 administrator ~0007556	I ended up implementing this in a different way...