[Libreoffice-bugs] [Bug 137735] FILESAVE: Chart defects when reopening : loss of backwards compatibility

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=137735

--- Comment #6 from matthewnote at yahoo.co.uk ---
Created attachment 167424
  --> https://bugs.documentfoundation.org/attachment.cgi?id=167424&action=edit
Report of LO versions tests (including 32bit with xml format error messages)

One medium size file of the project here was being edited with additional
histograms. The file is fully working on Calc 5.4.7.2.  It was then tested with
many different versions of Calc/OS.(pdf attachment).

Only that file has produced error messages about content.xml format (using Calc
32 bit application).  I hope to spend time generating a smaller file with a
method to break more charts . . . . this report is offered if xml format might
be the problem. 

The pdf has links to the actual Cancer project file used, it's content.xml
(zipped, becomes 1.1 Gbyte when unzipped) for anyone to download (Google Drive
no password required). This pdf also replaces the first draft.
https://drive.google.com/file/d/1jORZE78LkvQVYmIgzbhQfxS3U8eR0TxU/view?usp=sharing

[If someone intends to reproduce the problem.  The sheets have X,Y scatter
plots and histograms.  Choose the data for each axis using the orange
background control panel at the upper left of the sheet and there's a remote
control to multiply or add factors to that data. On an i7 processor at 4.2 GHZ,
Calc needs five or six seconds to display a change.

A quicker check for frozen graphics is to click "Nation labels" to OFF(0) or
back ON(1) again.  If the cell value changes immediately, the redraw will not
be done.  Patience. Even on an i7 processor at 4.2 GHZ, Calc needs five or six
seconds to display a successful redraw.  Criteria for the Bug:  PLOTFILTER the
graph is usually frozen when the file is opened.  Same thing PLOTXY1 and XY2. 
On PLOTforSCAN sheet, the x,y plotter on the left is working, yet the two
scatter diagrams on the right are the ones that freeze].

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