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Upgraded FileFixer for V8 handles
newfound V8 design file corruption.
By Al Germolus, Product Manager
for FileFixer
CLEARWATER, FL, USA — MicroStation V8 users are
running into different problems than in earlier versions of
MicroStation, mostly problems related to the new structure
of the DGN file.
A V8 design file consists of multiple internal directories
and sub-files. This data organization scheme, also used by
Microsoft Word and Excel, is called “structured storage”.
Structured storage errors are one of the most serious, recurring
V8-specific corruption problems occurring in production. This
is a new phenomenon with MicroStation files, hence, drafters
and designers using V8 in production might have encountered
structured storage errors without realizing it.
If one of the “sub-files” in a V8 DGN becomes damaged
and it cannot be opened, then MicroStation is not able to
display the elements within that sub-file. Currently, there
is no way to recover any of these elements when the structure
of the subfile is damaged. The only thing that can be done
is to delete it. FileFixer for V8 can automatically
delete these sub-files, restoring the rest of the design file.
Unable to open the design file in
MicroStation
If you’ve ever encountered an “Unable to open design
file. Please contact your local site administrator or technical
support provider for further assistance.” message, the
most likely problem is that the design file header element
is on the wrong level.
As mentioned earlier, a V8 file consists of multiple internal
directories and sub-files. One of these internal directories
is the non-model section. The non-model section contains the
level tables, shared cells definitions, line styles, view
information (views being displayed and their orientations)
and other global data.
The first element in the first sub-file of the non-model
section is the design file header. This element must be on
level number 8. If it is on any other level than that you
will receive the “Unable to open design file…”
message and MicroStation cannot open the design file.
FileFixer can automatically move the design file header
element back to level number 8 so that the file can be opened
and modified by MicroStation.
These are only some of the many enhancements, most of which
are too technical to get into in this article. FileFixer
is always growing as more and more customer problems arise.
If you have a “weirdness” in one or more of your
V8 design files, please don’t hesitate to contact the
Design File Doctors at Axiom.
Learn more about FileFixer
For more information on FileFixer
contact an Axiom MicroStation
Consultant today! Call 727-442-7774 extension 9245 or e-mail
9245@axiomint.com.
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