CE U10 - problem when selecting lots of elements

Question

I've received a DWG file from my client with geometry that seems to be flatten from 3D, it's 2D file but there are many overlapping duplicate elements. when I say many I mean > 600K of elements. I converted it to DGN and tried to use data cleanup tool, the analysis went pretty fast but the selection of duplicate elements is unbelievably slow. what more, when I switched to other application and MS was in background, the process seems to get frozen. however it maybe still is running, but after 30 minutes I had to kill the process. 
 same file in V8 SS4 took about 2 minute to completely select about 428000 elements, btw same behaviour when app is in background as MS CE, but process in background runs much faster. the only problem is that while the MS is in the background, covered by other window, the element counter stops and user has no indication if the task is running or not. especially in MS CE when the element selection runs so slow this is big problem. 
 any ideas how to speed up the element selection process? the file is quite big and contains private data so I cannot share it 
 thanks

Jan Šlegr · Answer

Hi Peter, 
 Peter Tegza said: no, I do not use the Explorer tool in MS 
 no Explorer , no Properties dialogs opened? Maybe my question confused you a bit, because Properties dialog represents far bigger impact to MicroStation performance, Explorer dialog is not so important (but there is some performance penalty also). 
 Peter Tegza said: same file in V8 SS4 took about 2 minute to completely select about 428000 elements 
 It sounds too long to me. I found some 2D map with about 1 mil. of elements and rough numbers are: 
 
 V8 SS4, select all: 22 secs 
 V8 SS4, select all by mouse (by rectangle): 30 secs ... it makes sense as it requires "by range" selection 
 
 ... but still not 2 minutes. Maybe Element information dialog is opened or some application slows down the process at background? 
 In MicroStation CONNECT Edition Update 10: 
 
 both Properties and Explorer dialog closed, select all (Ctrl+A used): 10 secs! ... a big surprise, don't expect that 
 both Properties and Explorer dialog closed, select by mouse: 20 secs ... the confirmation CE is faster than V8i SS4 
 
 ... but 
 
 Explorer dialog opened, select all using Ctrl + A: 40 secs ... substantial duration extension 
 Properties dialog opened, select all using Ctrl + A: forever (it means "I have no such patience") 
 
 It confirms a fact discussed several times already: When there is a workflow when a bunch of elements are selected, both Explorer (a bit) and Properties dialogs will slow down (or halt completely) MicroStation performance. 
 With regards, 
 Jan

Lorys · Answer

I haven't got CE U10 but have you tried the compress design first before using data clean up to find duplicates... might speed things up. 
 In V8iSS4 I set my data clean up to delete duplicates not interested in finding and seeing but overlaps I don't auto delete, so I run these a separate events...

CE U10 - problem when selecting lots of elements

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