Tomaž Vajngerl
2c87d392dc
CoinMPSolver did the whole job in one function: sample the model by perturbing each variable, build the CoinMP matrix from those coefficients, solve, and read the result back. Move the matrix build and solve into a standalone helper, coinmpSolveLinearModel, that takes the sampled coefficients plus the variable bounds and column types and returns the solution and status. The helper treats the first entry of each cell's coefficient vector as the value of an affine model at the origin and the rest as the per variable slopes, which is what the existing sampling already produces. That keeps the same convention while letting a future caller supply coefficients sampled around a different point and its own bounds, which is what a sequential linear programming loop needs. No behaviour change. CoinMPSolver still samples and sets up bounds and column types exactly as before, then calls the helper. The CoinMP solver unit test passes unchanged. Signed-off-by: Tomaž Vajngerl <tomaz.vajngerl@collabora.co.uk> Change-Id: I6d373a48caa9d67a932a599068368bae978f1f22 Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/4648 Tested-by: Tomaž Vajngerl <tomaz.vajngerl@collabora.com> Reviewed-by: Miklos Vajna <vmiklos@collabora.com> (cherry picked from commit 197f790a93880f56dd53db43e6bbb61c22ccfdc2) Reviewed-on: https://gerrit.libreoffice.org/c/core/+/208337 Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org> Tested-by: Xisco Fauli <xiscofauli@libreoffice.org>
Spreadsheet Application Code
You can dump some information in a dbgutil build:
Shortcuts
CTRL+SHIFT+F12
Dumps the column width of the first 20 columns.
CTRL+SHIFT+F11
Dumps the graphic objects and their position and size in pixel.
CTRL+SHIFT+F6
Dumps the SfxItemSet representing the cell properties' of the current selection as a xml file. The file will be named dump.xml
The Cache Format
ScDocument::StoreTabToCache allows storing the content (not the formatting) of a table to a binary cache format.
The format is column orientated which allows quick serialization of the table.
-
Header:
- Number of Columns: 64 bit unsigned integer
-
Column:
- Column Index: 64 bit unsigned integer
- Column Size: 64 bit unsigned integer
- For each cell type block a new ColumnBlock
-
ColumnBlock:
- Start Row: 64 bit unsigned integer
- Block Size: 64 bit unsigned integer
- Type: 8 bit unsigned integer
- 0 : empty
- 1 : numeric
- for each cell: 64 bit IEEE 754 double precision value
- 2 : string
- for each cell: 32 bit signed string length followed by string length bytes of the string (UTF-8)
- 3 : formula
- for each cell: 32 bit signed string length followed by the formula in R1C1 notation as a string
Functions Supporting Wildcards or Regular Expressions
As this comes up every now and then, and rather should be documented in an extra list of the Help system, functions that support Wildcards or Regular Expressions and depend on the setting under Tools -> Options -> Calc -> Calculate are those that in ODF OpenFormula (ODFF) are defined to depend on the HOST-USE-REGULAR-EXPRESSIONS or HOST-USE-WILDCARDS properties, see ODF v1.3 part4 3.4 Host-Defined Behaviors https://docs.oasis-open.org/office/OpenDocument/v1.3/os/part4-formula/OpenDocument-v1.3-os-part4-formula.html#__RefHeading__1017868_715980110
- Array Functions
- CHOOSECOLS
- CHOOSEROWS
- DROP
- EXPAND
- HSTACK
- VSTACK
- TAKE
- TEXTSPLIT
- TOCOL
- TOROW
- WRAPCOLS
- WRAPROWS
- Database Functions
- DAVERAGE
- DCOUNT
- DCOUNTA
- DGET
- DMAX
- DMIN
- DPRODUCT
- DSTDEV
- DSTDEVP
- DSUM
- DVAR
- DVARP
- Information Functions
- COUNTIF
- COUNTIFS
- Lookup Functions
- HLOOKUP
- LOOKUP
- MATCH
- XMATCH
- VLOOKUP
- XLOOKUP
- FILTER
- SORT
- SORTBY
- UNIQUE
- Mathematical Functions
- RANDARRAY
- SEQUENCE
- SUMIF
- SUMIFS
- Statistical Functions
- AVERAGEIF
- AVERAGEIFS
- Text Functions
- SEARCH